test-run-test: use explicit variables to clarify paths

Since $TESTTMP and $TESTDIR are defined for both the main scope and the test
run during the test, the situation get confusing. To work around that, we
define some new, explicit, variables with the values we needs to keep track
of.

Differential Revision: https://phab.mercurial-scm.org/D11034

tests/test-run-tests.t

@@ -1,2069 +1,2087 b''
 This file tests the behavior of run-tests.py itself.
 
 Avoid interference from actual test env:
 
   $ . "$TESTDIR/helper-runtests.sh"
 
 Smoke test with install
 ============
   $ "$PYTHON" $TESTDIR/run-tests.py $HGTEST_RUN_TESTS_PURE -l
   running 0 tests using 0 parallel processes 
   
   # Ran 0 tests, 0 skipped, 0 failed.
 
 Define a helper to avoid the install step
 =============
   $ rt()
   > {
   >     "$PYTHON" $TESTDIR/run-tests.py --with-hg=`which hg` -j1 "$@"
   > }
 
 error paths
 
 #if symlink
   $ ln -s `which true` hg
   $ "$PYTHON" $TESTDIR/run-tests.py --with-hg=./hg
   warning: --with-hg should specify an hg script
   running 0 tests using 0 parallel processes 
   
   # Ran 0 tests, 0 skipped, 0 failed.
   $ rm hg
 #endif
 
 #if execbit
   $ touch hg
   $ "$PYTHON" $TESTDIR/run-tests.py --with-hg=./hg
   usage: run-tests.py [options] [tests]
   run-tests.py: error: --with-hg must specify an executable hg script
   [2]
   $ rm hg
 #endif
 
 Features for testing optional lines
 ===================================
 
   $ cat > hghaveaddon.py <<EOF
   > import hghave
   > @hghave.check("custom", "custom hghave feature")
   > def has_custom():
   >     return True
   > @hghave.check("missing", "missing hghave feature")
   > def has_missing():
   >     return False
   > EOF
 
 an empty test
 =======================
 
   $ touch test-empty.t
   $ rt
   running 1 tests using 1 parallel processes 
   .
   # Ran 1 tests, 0 skipped, 0 failed.
   $ rm test-empty.t
 
 a succesful test
 =======================
 
   $ cat > test-success.t << EOF
   >   $ echo babar
   >   babar
   >   $ echo xyzzy
   >   dont_print (?)
   >   nothing[42]line (re) (?)
   >   never*happens (glob) (?)
   >   more_nothing (?)
   >   xyzzy
   >   nor this (?)
   >   $ printf 'abc\ndef\nxyz\n'
   >   123 (?)
   >   abc
   >   def (?)
   >   456 (?)
   >   xyz
   >   $ printf 'zyx\nwvu\ntsr\n'
   >   abc (?)
   >   zyx (custom !)
   >   wvu
   >   no_print (no-custom !)
   >   tsr (no-missing !)
   >   missing (missing !)
   > EOF
 
   $ rt
   running 1 tests using 1 parallel processes 
   .
   # Ran 1 tests, 0 skipped, 0 failed.
 
 failing test
 ==================
 
 test churn with globs
   $ cat > test-failure.t <<EOF
   >   $ echo "bar-baz"; echo "bar-bad"; echo foo
   >   bar*bad (glob)
   >   bar*baz (glob)
   >   | fo (re)
   > EOF
   $ rt test-failure.t
   running 1 tests using 1 parallel processes 
   
   --- $TESTTMP/test-failure.t
   +++ $TESTTMP/test-failure.t.err
   @@ -1,4 +1,4 @@
      $ echo "bar-baz"; echo "bar-bad"; echo foo
   +  bar*baz (glob)
      bar*bad (glob)
   -  bar*baz (glob)
   -  | fo (re)
   +  foo
   
   ERROR: test-failure.t output changed
   !
   Failed test-failure.t: output changed
   # Ran 1 tests, 0 skipped, 1 failed.
   python hash seed: * (glob)
   [1]
 
 test how multiple globs gets matched with lines in output
   $ cat > test-failure-globs.t <<EOF
   >   $ echo "context"; echo "context"; \
   >     echo "key: 1"; echo "value: not a"; \
   >     echo "key: 2"; echo "value: not b"; \
   >     echo "key: 3"; echo "value: c"; \
   >     echo "key: 4"; echo "value: d"
   >   context
   >   context
   >   key: 1
   >   value: a
   >   key: 2
   >   value: b
   >   key: 3
   >   value: * (glob)
   >   key: 4
   >   value: * (glob)
   > EOF
   $ rt test-failure-globs.t
   running 1 tests using 1 parallel processes 
   
   --- $TESTTMP/test-failure-globs.t
   +++ $TESTTMP/test-failure-globs.t.err
   @@ -2,9 +2,9 @@
      context
      context
      key: 1
   -  value: a
   +  value: not a
      key: 2
   -  value: b
   +  value: not b
      key: 3
      value: * (glob)
      key: 4
   
   ERROR: test-failure-globs.t output changed
   !
   Failed test-failure-globs.t: output changed
   # Ran 1 tests, 0 skipped, 1 failed.
   python hash seed: * (glob)
   [1]
   $ rm test-failure-globs.t
 
 test diff colorisation
 
 #if no-windows pygments
   $ rt test-failure.t --color always
   running 1 tests using 1 parallel processes 
   
   \x1b[38;5;124m--- $TESTTMP/test-failure.t\x1b[39m (esc)
   \x1b[38;5;34m+++ $TESTTMP/test-failure.t.err\x1b[39m (esc)
   \x1b[38;5;90;01m@@ -1,4 +1,4 @@\x1b[39;00m (esc)
      $ echo "bar-baz"; echo "bar-bad"; echo foo
   \x1b[38;5;34m+  bar*baz (glob)\x1b[39m (esc)
      bar*bad (glob)
   \x1b[38;5;124m-  bar*baz (glob)\x1b[39m (esc)
   \x1b[38;5;124m-  | fo (re)\x1b[39m (esc)
   \x1b[38;5;34m+  foo\x1b[39m (esc)
   
   \x1b[38;5;88mERROR: \x1b[39m\x1b[38;5;9mtest-failure.t\x1b[39m\x1b[38;5;88m output changed\x1b[39m (esc)
   !
   \x1b[38;5;88mFailed \x1b[39m\x1b[38;5;9mtest-failure.t\x1b[39m\x1b[38;5;88m: output changed\x1b[39m (esc)
   # Ran 1 tests, 0 skipped, 1 failed.
   python hash seed: * (glob)
   [1]
 
   $ rt test-failure.t 2> tmp.log
   running 1 tests using 1 parallel processes 
   [1]
   $ cat tmp.log
   
   --- $TESTTMP/test-failure.t
   +++ $TESTTMP/test-failure.t.err
   @@ -1,4 +1,4 @@
      $ echo "bar-baz"; echo "bar-bad"; echo foo
   +  bar*baz (glob)
      bar*bad (glob)
   -  bar*baz (glob)
   -  | fo (re)
   +  foo
   
   ERROR: test-failure.t output changed
   !
   Failed test-failure.t: output changed
   # Ran 1 tests, 0 skipped, 1 failed.
   python hash seed: * (glob)
 #endif
 
   $ cat > test-failure.t << EOF
   >   $ true
   >   should go away (true !)
   >   $ true
   >   should stay (false !)
   > 
   > Should remove first line, not second or third
   >   $ echo 'testing'
   >   baz*foo (glob) (true !)
   >   foobar*foo (glob) (false !)
   >   te*ting (glob) (true !)
   > 
   > Should keep first two lines, remove third and last
   >   $ echo 'testing'
   >   test.ng (re) (true !)
   >   foo.ar (re) (false !)
   >   b.r (re) (true !)
   >   missing (?)
   >   awol (true !)
   > 
   > The "missing" line should stay, even though awol is dropped
   >   $ echo 'testing'
   >   test.ng (re) (true !)
   >   foo.ar (?)
   >   awol
   >   missing (?)
   > EOF
   $ rt test-failure.t
   running 1 tests using 1 parallel processes 
   
   --- $TESTTMP/test-failure.t
   +++ $TESTTMP/test-failure.t.err
   @@ -1,11 +1,9 @@
      $ true
   -  should go away (true !)
      $ true
      should stay (false !)
    
    Should remove first line, not second or third
      $ echo 'testing'
   -  baz*foo (glob) (true !)
      foobar*foo (glob) (false !)
      te*ting (glob) (true !)
    
      foo.ar (re) (false !)
      missing (?)
   @@ -13,13 +11,10 @@
      $ echo 'testing'
      test.ng (re) (true !)
      foo.ar (re) (false !)
   -  b.r (re) (true !)
      missing (?)
   -  awol (true !)
    
    The "missing" line should stay, even though awol is dropped
      $ echo 'testing'
      test.ng (re) (true !)
      foo.ar (?)
   -  awol
      missing (?)
   
   ERROR: test-failure.t output changed
   !
   Failed test-failure.t: output changed
   # Ran 1 tests, 0 skipped, 1 failed.
   python hash seed: * (glob)
   [1]
 
 basic failing test
   $ cat > test-failure.t << EOF
   >   $ echo babar
   >   rataxes
   > This is a noop statement so that
   > this test is still more bytes than success.
   > pad pad pad pad............................................................
   > pad pad pad pad............................................................
   > pad pad pad pad............................................................
   > pad pad pad pad............................................................
   > pad pad pad pad............................................................
   > pad pad pad pad............................................................
   > EOF
 
   >>> fh = open('test-failure-unicode.t', 'wb')
   >>> fh.write(u'  $ echo babar\u03b1\n'.encode('utf-8')) and None
   >>> fh.write(u'  l\u03b5\u03b5t\n'.encode('utf-8')) and None
 
   $ rt
   running 3 tests using 1 parallel processes 
   
   --- $TESTTMP/test-failure.t
   +++ $TESTTMP/test-failure.t.err
   @@ -1,5 +1,5 @@
      $ echo babar
   -  rataxes
   +  babar
    This is a noop statement so that
    this test is still more bytes than success.
    pad pad pad pad............................................................
   
   ERROR: test-failure.t output changed
   !.
   --- $TESTTMP/test-failure-unicode.t
   +++ $TESTTMP/test-failure-unicode.t.err
   @@ -1,2 +1,2 @@
      $ echo babar\xce\xb1 (esc)
   -  l\xce\xb5\xce\xb5t (esc)
   +  babar\xce\xb1 (esc)
   
   ERROR: test-failure-unicode.t output changed
   !
   Failed test-failure-unicode.t: output changed
   Failed test-failure.t: output changed
   # Ran 3 tests, 0 skipped, 2 failed.
   python hash seed: * (glob)
   [1]
 
 test --outputdir
   $ mkdir output
   $ rt --outputdir output
   running 3 tests using 1 parallel processes 
   
   --- $TESTTMP/test-failure.t
   +++ $TESTTMP/output/test-failure.t.err
   @@ -1,5 +1,5 @@
      $ echo babar
   -  rataxes
   +  babar
    This is a noop statement so that
    this test is still more bytes than success.
    pad pad pad pad............................................................
   
   ERROR: test-failure.t output changed
   !.
   --- $TESTTMP/test-failure-unicode.t
   +++ $TESTTMP/output/test-failure-unicode.t.err
   @@ -1,2 +1,2 @@
      $ echo babar\xce\xb1 (esc)
   -  l\xce\xb5\xce\xb5t (esc)
   +  babar\xce\xb1 (esc)
   
   ERROR: test-failure-unicode.t output changed
   !
   Failed test-failure-unicode.t: output changed
   Failed test-failure.t: output changed
   # Ran 3 tests, 0 skipped, 2 failed.
   python hash seed: * (glob)
   [1]
   $ ls -a output
   .
   ..
   .testtimes
   test-failure-unicode.t.err
   test-failure.t.err
 
 test --xunit support
   $ rt --xunit=xunit.xml
   running 3 tests using 1 parallel processes 
   
   --- $TESTTMP/test-failure.t
   +++ $TESTTMP/test-failure.t.err
   @@ -1,5 +1,5 @@
      $ echo babar
   -  rataxes
   +  babar
    This is a noop statement so that
    this test is still more bytes than success.
    pad pad pad pad............................................................
   
   ERROR: test-failure.t output changed
   !.
   --- $TESTTMP/test-failure-unicode.t
   +++ $TESTTMP/test-failure-unicode.t.err
   @@ -1,2 +1,2 @@
      $ echo babar\xce\xb1 (esc)
   -  l\xce\xb5\xce\xb5t (esc)
   +  babar\xce\xb1 (esc)
   
   ERROR: test-failure-unicode.t output changed
   !
   Failed test-failure-unicode.t: output changed
   Failed test-failure.t: output changed
   # Ran 3 tests, 0 skipped, 2 failed.
   python hash seed: * (glob)
   [1]
   $ cat xunit.xml
   <?xml version="1.0" encoding="utf-8"?>
   <testsuite errors="0" failures="2" name="run-tests" skipped="0" tests="3">
     <testcase name="test-success.t" time="*"/> (glob)
     <testcase name="test-failure-unicode.t" time="*"> (glob)
       <failure message="output changed" type="output-mismatch"><![CDATA[--- $TESTTMP/test-failure-unicode.t (py38 !)
       <failure message="output changed" type="output-mismatch"> (no-py38 !)
   <![CDATA[--- $TESTTMP/test-failure-unicode.t (no-py38 !)
   +++ $TESTTMP/test-failure-unicode.t.err
   @@ -1,2 +1,2 @@
      $ echo babar\xce\xb1 (esc)
   -  l\xce\xb5\xce\xb5t (esc)
   +  babar\xce\xb1 (esc)
   ]]></failure> (py38 !)
   ]]>    </failure> (no-py38 !)
     </testcase>
     <testcase name="test-failure.t" time="*"> (glob)
       <failure message="output changed" type="output-mismatch"><![CDATA[--- $TESTTMP/test-failure.t (py38 !)
       <failure message="output changed" type="output-mismatch"> (no-py38 !)
   <![CDATA[--- $TESTTMP/test-failure.t (no-py38 !)
   +++ $TESTTMP/test-failure.t.err
   @@ -1,5 +1,5 @@
      $ echo babar
   -  rataxes
   +  babar
    This is a noop statement so that
    this test is still more bytes than success.
    pad pad pad pad............................................................
   ]]></failure> (py38 !)
   ]]>    </failure> (no-py38 !)
     </testcase>
   </testsuite>
 
   $ cat .testtimes
   test-empty.t * (glob)
   test-failure-globs.t * (glob)
   test-failure-unicode.t * (glob)
   test-failure.t * (glob)
   test-success.t * (glob)
 
   $ rt --list-tests
   test-failure-unicode.t
   test-failure.t
   test-success.t
 
   $ rt --list-tests --json
   test-failure-unicode.t
   test-failure.t
   test-success.t
   $ cat report.json
   testreport ={
       "test-failure-unicode.t": {
           "result": "success"
       },
       "test-failure.t": {
           "result": "success"
       },
       "test-success.t": {
           "result": "success"
       }
   } (no-eol)
 
   $ rt --list-tests --xunit=xunit.xml
   test-failure-unicode.t
   test-failure.t
   test-success.t
   $ cat xunit.xml
   <?xml version="1.0" encoding="utf-8"?>
   <testsuite errors="0" failures="0" name="run-tests" skipped="0" tests="0">
     <testcase name="test-failure-unicode.t"/>
     <testcase name="test-failure.t"/>
     <testcase name="test-success.t"/>
   </testsuite>
 
   $ rt --list-tests test-failure* --json --xunit=xunit.xml --outputdir output
   test-failure-unicode.t
   test-failure.t
   $ cat output/report.json
   testreport ={
       "test-failure-unicode.t": {
           "result": "success"
       },
       "test-failure.t": {
           "result": "success"
       }
   } (no-eol)
   $ cat xunit.xml
   <?xml version="1.0" encoding="utf-8"?>
   <testsuite errors="0" failures="0" name="run-tests" skipped="0" tests="0">
     <testcase name="test-failure-unicode.t"/>
     <testcase name="test-failure.t"/>
   </testsuite>
 
   $ rm test-failure-unicode.t
 
 test for --retest
 ====================
 
   $ rt --retest
   running 1 tests using 1 parallel processes 
   
   --- $TESTTMP/test-failure.t
   +++ $TESTTMP/test-failure.t.err
   @@ -1,5 +1,5 @@
      $ echo babar
   -  rataxes
   +  babar
    This is a noop statement so that
    this test is still more bytes than success.
    pad pad pad pad............................................................
   
   ERROR: test-failure.t output changed
   !
   Failed test-failure.t: output changed
   # Ran 1 tests, 0 skipped, 1 failed.
   python hash seed: * (glob)
   [1]
 
 --retest works with --outputdir
   $ rm -r output
   $ mkdir output
   $ mv test-failure.t.err output
   $ rt --retest --outputdir output
   running 1 tests using 1 parallel processes 
   
   --- $TESTTMP/test-failure.t
   +++ $TESTTMP/output/test-failure.t.err
   @@ -1,5 +1,5 @@
      $ echo babar
   -  rataxes
   +  babar
    This is a noop statement so that
    this test is still more bytes than success.
    pad pad pad pad............................................................
   
   ERROR: test-failure.t output changed
   !
   Failed test-failure.t: output changed
   # Ran 1 tests, 0 skipped, 1 failed.
   python hash seed: * (glob)
   [1]
 
 Selecting Tests To Run
 ======================
 
 successful
 
   $ rt test-success.t
   running 1 tests using 1 parallel processes 
   .
   # Ran 1 tests, 0 skipped, 0 failed.
 
 success w/ keyword
   $ rt -k xyzzy
   running 2 tests using 1 parallel processes 
   .
   # Ran 2 tests, 1 skipped, 0 failed.
 
 failed
 
   $ rt test-failure.t
   running 1 tests using 1 parallel processes 
   
   --- $TESTTMP/test-failure.t
   +++ $TESTTMP/test-failure.t.err
   @@ -1,5 +1,5 @@
      $ echo babar
   -  rataxes
   +  babar
    This is a noop statement so that
    this test is still more bytes than success.
    pad pad pad pad............................................................
   
   ERROR: test-failure.t output changed
   !
   Failed test-failure.t: output changed
   # Ran 1 tests, 0 skipped, 1 failed.
   python hash seed: * (glob)
   [1]
 
 failure w/ keyword
   $ rt -k rataxes
   running 2 tests using 1 parallel processes 
   
   --- $TESTTMP/test-failure.t
   +++ $TESTTMP/test-failure.t.err
   @@ -1,5 +1,5 @@
      $ echo babar
   -  rataxes
   +  babar
    This is a noop statement so that
    this test is still more bytes than success.
    pad pad pad pad............................................................
   
   ERROR: test-failure.t output changed
   !
   Failed test-failure.t: output changed
   # Ran 2 tests, 1 skipped, 1 failed.
   python hash seed: * (glob)
   [1]
 
 Verify that when a process fails to start we show a useful message
 ==================================================================
 
   $ cat > test-serve-fail.t <<EOF
   >   $ echo 'abort: child process failed to start blah'
   > EOF
   $ rt test-serve-fail.t
   running 1 tests using 1 parallel processes 
   
   --- $TESTTMP/test-serve-fail.t
   +++ $TESTTMP/test-serve-fail.t.err
   @@ -1* +1,2 @@ (glob)
      $ echo 'abort: child process failed to start blah'
   +  abort: child process failed to start blah
   
   ERROR: test-serve-fail.t output changed
   !
   Failed test-serve-fail.t: server failed to start (HGPORT=*) (glob)
   # Ran 1 tests, 0 skipped, 1 failed.
   python hash seed: * (glob)
   [1]
   $ rm test-serve-fail.t
 
 Verify that we can try other ports
 ===================================
 
 Extensions aren't inherited by the invoked run-tests.py. An extension
 introducing a repository requirement could cause this to fail. So we force
 HGRCPATH to get a clean environment.
 
   $ HGRCPATH= hg init inuse
   $ hg serve -R inuse -p $HGPORT -d --pid-file=blocks.pid
   $ cat blocks.pid >> $DAEMON_PIDS
   $ cat > test-serve-inuse.t <<EOF
   >   $ hg serve -R `pwd`/inuse -p \$HGPORT -d --pid-file=hg.pid
   >   $ cat hg.pid >> \$DAEMON_PIDS
   > EOF
   $ rt test-serve-inuse.t
   running 1 tests using 1 parallel processes 
   .
   # Ran 1 tests, 0 skipped, 0 failed.
   $ rm test-serve-inuse.t
   $ killdaemons.py $DAEMON_PIDS
 
 Running In Debug Mode
 ======================
 
   $ rt --debug 2>&1 | grep -v pwd
   running 2 tests using 1 parallel processes 
   + alias hg=hg.exe (windows !)
   + echo *SALT* 0 0 (glob)
   *SALT* 0 0 (glob)
   + echo babar
   babar
   + echo *SALT* 10 0 (glob)
   *SALT* 10 0 (glob)
   .+ alias hg=hg.exe (windows !)
   *+ echo *SALT* 0 0 (glob)
   *SALT* 0 0 (glob)
   + echo babar
   babar
   + echo *SALT* 2 0 (glob)
   *SALT* 2 0 (glob)
   + echo xyzzy
   xyzzy
   + echo *SALT* 9 0 (glob)
   *SALT* 9 0 (glob)
   + printf *abc\ndef\nxyz\n* (glob)
   abc
   def
   xyz
   + echo *SALT* 15 0 (glob)
   *SALT* 15 0 (glob)
   + printf *zyx\nwvu\ntsr\n* (glob)
   zyx
   wvu
   tsr
   + echo *SALT* 22 0 (glob)
   *SALT* 22 0 (glob)
   .
   # Ran 2 tests, 0 skipped, 0 failed.
 
 Parallel runs
 ==============
 
 (duplicate the failing test to get predictable output)
   $ cp test-failure.t test-failure-copy.t
 
   $ rt --jobs 2 test-failure*.t -n
   running 2 tests using 2 parallel processes 
   !!
   Failed test-failure*.t: output changed (glob)
   Failed test-failure*.t: output changed (glob)
   # Ran 2 tests, 0 skipped, 2 failed.
   python hash seed: * (glob)
   [1]
 
 failures in parallel with --first should only print one failure
   $ rt --jobs 2 --first test-failure*.t
   running 2 tests using 2 parallel processes 
   
   --- $TESTTMP/test-failure*.t (glob)
   +++ $TESTTMP/test-failure*.t.err (glob)
   @@ -1,5 +1,5 @@
      $ echo babar
   -  rataxes
   +  babar
    This is a noop statement so that
    this test is still more bytes than success.
    pad pad pad pad............................................................
   
   Failed test-failure*.t: output changed (glob)
   Failed test-failure*.t: output changed (glob)
   # Ran 2 tests, 0 skipped, 2 failed.
   python hash seed: * (glob)
   [1]
 
 
 (delete the duplicated test file)
   $ rm test-failure-copy.t
 
 multiple runs per test should be parallelized
 
   $ rt --jobs 2 --runs-per-test 2 test-success.t
   running 2 tests using 2 parallel processes 
   ..
   # Ran 2 tests, 0 skipped, 0 failed.
 
 Interactive run
 ===============
 
 (backup the failing test)
   $ cp test-failure.t backup
 
 Refuse the fix
 
   $ echo 'n' | rt -i
   running 2 tests using 1 parallel processes 
   
   --- $TESTTMP/test-failure.t
   +++ $TESTTMP/test-failure.t.err
   @@ -1,5 +1,5 @@
      $ echo babar
   -  rataxes
   +  babar
    This is a noop statement so that
    this test is still more bytes than success.
    pad pad pad pad............................................................
   Accept this change? [y/N] 
   ERROR: test-failure.t output changed
   !.
   Failed test-failure.t: output changed
   # Ran 2 tests, 0 skipped, 1 failed.
   python hash seed: * (glob)
   [1]
 
   $ cat test-failure.t
     $ echo babar
     rataxes
   This is a noop statement so that
   this test is still more bytes than success.
   pad pad pad pad............................................................
   pad pad pad pad............................................................
   pad pad pad pad............................................................
   pad pad pad pad............................................................
   pad pad pad pad............................................................
   pad pad pad pad............................................................
 
 Interactive with custom view
 
   $ echo 'n' | rt -i --view echo
   running 2 tests using 1 parallel processes 
   $TESTTMP/test-failure.t $TESTTMP/test-failure.t.err
   Accept this change? [y/N]* (glob)
   ERROR: test-failure.t output changed
   !.
   Failed test-failure.t: output changed
   # Ran 2 tests, 0 skipped, 1 failed.
   python hash seed: * (glob)
   [1]
 
 View the fix
 
   $ echo 'y' | rt --view echo
   running 2 tests using 1 parallel processes 
   $TESTTMP/test-failure.t $TESTTMP/test-failure.t.err
   
   ERROR: test-failure.t output changed
   !.
   Failed test-failure.t: output changed
   # Ran 2 tests, 0 skipped, 1 failed.
   python hash seed: * (glob)
   [1]
 
 Accept the fix
 
   $ cat >> test-failure.t <<EOF
   >   $ echo 'saved backup bundle to \$TESTTMP/foo.hg'
   >   saved backup bundle to \$TESTTMP/foo.hg
   >   $ echo 'saved backup bundle to \$TESTTMP/foo.hg'
   >   saved backup bundle to $TESTTMP\\foo.hg
   >   $ echo 'saved backup bundle to \$TESTTMP/foo.hg'
   >   saved backup bundle to \$TESTTMP/*.hg (glob)
   > EOF
   $ echo 'y' | rt -i 2>&1
   running 2 tests using 1 parallel processes 
   
   --- $TESTTMP/test-failure.t
   +++ $TESTTMP/test-failure.t.err
   @@ -1,5 +1,5 @@
      $ echo babar
   -  rataxes
   +  babar
    This is a noop statement so that
    this test is still more bytes than success.
    pad pad pad pad............................................................
   @@ -11,6 +11,6 @@
      $ echo 'saved backup bundle to $TESTTMP/foo.hg'
      saved backup bundle to $TESTTMP/foo.hg
      $ echo 'saved backup bundle to $TESTTMP/foo.hg'
   -  saved backup bundle to $TESTTMP\foo.hg
   +  saved backup bundle to $TESTTMP/foo.hg
      $ echo 'saved backup bundle to $TESTTMP/foo.hg'
      saved backup bundle to $TESTTMP/*.hg (glob)
   Accept this change? [y/N] ..
   # Ran 2 tests, 0 skipped, 0 failed.
 
   $ sed -e 's,(glob)$,&<,g' test-failure.t
     $ echo babar
     babar
   This is a noop statement so that
   this test is still more bytes than success.
   pad pad pad pad............................................................
   pad pad pad pad............................................................
   pad pad pad pad............................................................
   pad pad pad pad............................................................
   pad pad pad pad............................................................
   pad pad pad pad............................................................
     $ echo 'saved backup bundle to $TESTTMP/foo.hg'
     saved backup bundle to $TESTTMP/foo.hg
     $ echo 'saved backup bundle to $TESTTMP/foo.hg'
     saved backup bundle to $TESTTMP/foo.hg
     $ echo 'saved backup bundle to $TESTTMP/foo.hg'
     saved backup bundle to $TESTTMP/*.hg (glob)<
 
   $ rm test-failure.t
 
 Race condition - test file was modified when test is running
 
   $ TESTRACEDIR=`pwd`
   $ export TESTRACEDIR
   $ cat > test-race.t <<EOF
   >   $ echo 1
   >   $ echo "# a new line" >> $TESTRACEDIR/test-race.t
   > EOF
 
   $ rt -i test-race.t
   running 1 tests using 1 parallel processes 
   
   --- $TESTTMP/test-race.t
   +++ $TESTTMP/test-race.t.err
   @@ -1,2 +1,3 @@
      $ echo 1
   +  1
      $ echo "# a new line" >> $TESTTMP/test-race.t
   Reference output has changed (run again to prompt changes)
   ERROR: test-race.t output changed
   !
   Failed test-race.t: output changed
   # Ran 1 tests, 0 skipped, 1 failed.
   python hash seed: * (glob)
   [1]
 
   $ rm test-race.t
 
 When "#testcases" is used in .t files
 
   $ cat >> test-cases.t <<EOF
   > #testcases a b
   > #if a
   >   $ echo 1
   > #endif
   > #if b
   >   $ echo 2
   > #endif
   > EOF
 
   $ cat <<EOF | rt -i test-cases.t 2>&1
   > y
   > y
   > EOF
   running 2 tests using 1 parallel processes 
   
   --- $TESTTMP/test-cases.t
   +++ $TESTTMP/test-cases.t#a.err
   @@ -1,6 +1,7 @@
    #testcases a b
    #if a
      $ echo 1
   +  1
    #endif
    #if b
      $ echo 2
   Accept this change? [y/N] .
   --- $TESTTMP/test-cases.t
   +++ $TESTTMP/test-cases.t#b.err
   @@ -5,4 +5,5 @@
    #endif
    #if b
      $ echo 2
   +  2
    #endif
   Accept this change? [y/N] .
   # Ran 2 tests, 0 skipped, 0 failed.
 
   $ cat test-cases.t
   #testcases a b
   #if a
     $ echo 1
     1
   #endif
   #if b
     $ echo 2
     2
   #endif
 
   $ cat >> test-cases.t <<'EOF'
   > #if a
   >   $ NAME=A
   > #else
   >   $ NAME=B
   > #endif
   >   $ echo $NAME
   >   A (a !)
   >   B (b !)
   > EOF
   $ rt test-cases.t
   running 2 tests using 1 parallel processes 
   ..
   # Ran 2 tests, 0 skipped, 0 failed.
 
 When using multiple dimensions of "#testcases" in .t files
 
   $ cat > test-cases.t <<'EOF'
   > #testcases a b
   > #testcases c d
   > #if a d
   >   $ echo $TESTCASE
   >   a#d
   > #endif
   > #if b c
   >   $ echo yes
   >   no
   > #endif
   > EOF
   $ rt test-cases.t
   running 4 tests using 1 parallel processes 
   ..
   --- $TESTTMP/test-cases.t
   +++ $TESTTMP/test-cases.t#b#c.err
   @@ -6,5 +6,5 @@
    #endif
    #if b c
      $ echo yes
   -  no
   +  yes
    #endif
   
   ERROR: test-cases.t#b#c output changed
   !.
   Failed test-cases.t#b#c: output changed
   # Ran 4 tests, 0 skipped, 1 failed.
   python hash seed: * (glob)
   [1]
 
   $ rt --retest
   running 1 tests using 1 parallel processes 
   
   --- $TESTTMP/test-cases.t
   +++ $TESTTMP/test-cases.t#b#c.err
   @@ -6,5 +6,5 @@
    #endif
    #if b c
      $ echo yes
   -  no
   +  yes
    #endif
   
   ERROR: test-cases.t#b#c output changed
   !
   Failed test-cases.t#b#c: output changed
   # Ran 1 tests, 0 skipped, 1 failed.
   python hash seed: * (glob)
   [1]
   $ rm test-cases.t#b#c.err
   $ rm test-cases.t
 
 (reinstall)
   $ mv backup test-failure.t
 
 No Diff
 ===============
 
   $ rt --nodiff
   running 2 tests using 1 parallel processes 
   !.
   Failed test-failure.t: output changed
   # Ran 2 tests, 0 skipped, 1 failed.
   python hash seed: * (glob)
   [1]
 
 test --tmpdir support
   $ rt --tmpdir=$TESTTMP/keep test-success.t
   running 1 tests using 1 parallel processes 
   
   Keeping testtmp dir: $TESTTMP/keep/child1/test-success.t
   Keeping threadtmp dir: $TESTTMP/keep/child1 
   .
   # Ran 1 tests, 0 skipped, 0 failed.
 
 timeouts
 ========
   $ cat > test-timeout.t <<EOF
   >   $ sleep 2
   >   $ echo pass
   >   pass
   > EOF
   > echo '#require slow' > test-slow-timeout.t
   > cat test-timeout.t >> test-slow-timeout.t
   $ rt --timeout=1 --slowtimeout=3 test-timeout.t test-slow-timeout.t
   running 2 tests using 1 parallel processes 
   st
   Skipped test-slow-timeout.t: missing feature: allow slow tests (use --allow-slow-tests)
   Failed test-timeout.t: timed out
   # Ran 1 tests, 1 skipped, 1 failed.
   python hash seed: * (glob)
   [1]
   $ rt --timeout=1 --slowtimeout=3 \
   > test-timeout.t test-slow-timeout.t --allow-slow-tests
   running 2 tests using 1 parallel processes 
   .t
   Failed test-timeout.t: timed out
   # Ran 2 tests, 0 skipped, 1 failed.
   python hash seed: * (glob)
   [1]
   $ rm test-timeout.t test-slow-timeout.t
 
 test for --time
 ==================
 
   $ rt test-success.t --time
   running 1 tests using 1 parallel processes 
   .
   # Ran 1 tests, 0 skipped, 0 failed.
   # Producing time report
   start   end     cuser   csys    real      Test
   \s*[\d\.]{5,8} \s*[\d\.]{5,8} \s*[\d\.]{5,8} \s*[\d\.]{5,8} \s*[\d\.]{5,8}   test-success.t (re)
 
 test for --time with --job enabled
 ====================================
 
   $ rt test-success.t --time --jobs 2
   running 1 tests using 1 parallel processes 
   .
   # Ran 1 tests, 0 skipped, 0 failed.
   # Producing time report
   start   end     cuser   csys    real      Test
   \s*[\d\.]{5,8} \s*[\d\.]{5,8} \s*[\d\.]{5,8} \s*[\d\.]{5,8} \s*[\d\.]{5,8}   test-success.t (re)
 
 Skips
 ================
   $ cat > test-skip.t <<EOF
   >   $ echo xyzzy
   > #if true
   > #require false
   > #end
   > EOF
   $ cat > test-noskip.t <<EOF
   > #if false
   > #require false
   > #endif
   > EOF
   $ rt --nodiff
   running 4 tests using 1 parallel processes 
   !.s.
   Skipped test-skip.t: missing feature: nail clipper
   Failed test-failure.t: output changed
   # Ran 3 tests, 1 skipped, 1 failed.
   python hash seed: * (glob)
   [1]
 
   $ rm test-noskip.t
   $ rt --keyword xyzzy
   running 3 tests using 1 parallel processes 
   .s
   Skipped test-skip.t: missing feature: nail clipper
   # Ran 2 tests, 2 skipped, 0 failed.
 
 Skips with xml
   $ rt --keyword xyzzy \
   >  --xunit=xunit.xml
   running 3 tests using 1 parallel processes 
   .s
   Skipped test-skip.t: missing feature: nail clipper
   # Ran 2 tests, 2 skipped, 0 failed.
   $ cat xunit.xml
   <?xml version="1.0" encoding="utf-8"?>
   <testsuite errors="0" failures="0" name="run-tests" skipped="2" tests="2">
     <testcase name="test-success.t" time="*"/> (glob)
     <testcase name="test-skip.t">
       <skipped><![CDATA[missing feature: nail clipper]]></skipped> (py38 !)
       <skipped> (no-py38 !)
   <![CDATA[missing feature: nail clipper]]>    </skipped> (no-py38 !)
     </testcase>
   </testsuite>
 
 Missing skips or blacklisted skips don't count as executed:
   $ mkdir tests
   $ echo tests/test-failure.t > blacklist
   $ cp test-failure.t tests
   $ rt --blacklist=blacklist --json\
   >   tests/test-failure.t tests/test-bogus.t
   running 2 tests using 1 parallel processes 
   ss
   Skipped test-bogus.t: Doesn't exist
   Skipped test-failure.t: blacklisted
   # Ran 0 tests, 2 skipped, 0 failed.
   $ cat tests/report.json
   testreport ={
       "test-bogus.t": {
           "result": "skip"
       },
       "test-failure.t": {
           "result": "skip"
       }
   } (no-eol)
   $ rm -r tests
   $ echo test-failure.t > blacklist
 
 Whitelist trumps blacklist
   $ echo test-failure.t > whitelist
   $ rt --blacklist=blacklist --whitelist=whitelist --json\
   >   test-failure.t test-bogus.t
   running 2 tests using 1 parallel processes 
   s
   --- $TESTTMP/test-failure.t
   +++ $TESTTMP/test-failure.t.err
   @@ -1,5 +1,5 @@
      $ echo babar
   -  rataxes
   +  babar
    This is a noop statement so that
    this test is still more bytes than success.
    pad pad pad pad............................................................
   
   ERROR: test-failure.t output changed
   !
   Skipped test-bogus.t: Doesn't exist
   Failed test-failure.t: output changed
   # Ran 1 tests, 1 skipped, 1 failed.
   python hash seed: * (glob)
   [1]
 
 Ensure that --test-list causes only the tests listed in that file to
 be executed.
   $ echo test-success.t >> onlytest
   $ rt --test-list=onlytest
   running 1 tests using 1 parallel processes 
   .
   # Ran 1 tests, 0 skipped, 0 failed.
   $ echo test-bogus.t >> anothertest
   $ rt --test-list=onlytest --test-list=anothertest
   running 2 tests using 1 parallel processes 
   s.
   Skipped test-bogus.t: Doesn't exist
   # Ran 1 tests, 1 skipped, 0 failed.
   $ rm onlytest anothertest
 
 test for --json
 ==================
 
   $ rt --json
   running 3 tests using 1 parallel processes 
   
   --- $TESTTMP/test-failure.t
   +++ $TESTTMP/test-failure.t.err
   @@ -1,5 +1,5 @@
      $ echo babar
   -  rataxes
   +  babar
    This is a noop statement so that
    this test is still more bytes than success.
    pad pad pad pad............................................................
   
   ERROR: test-failure.t output changed
   !.s
   Skipped test-skip.t: missing feature: nail clipper
   Failed test-failure.t: output changed
   # Ran 2 tests, 1 skipped, 1 failed.
   python hash seed: * (glob)
   [1]
 
   $ cat report.json
   testreport ={
       "test-failure.t": [\{] (re)
           "csys": "\s*\d+\.\d{3,4}", ? (re)
           "cuser": "\s*\d+\.\d{3,4}", ? (re)
           "diff": "---.+\+\+\+.+", ? (re)
           "end": "\s*\d+\.\d{3,4}", ? (re)
           "result": "failure", ? (re)
           "start": "\s*\d+\.\d{3,4}", ? (re)
           "time": "\s*\d+\.\d{3,4}" (re)
       }, ? (re)
       "test-skip.t": {
           "csys": "\s*\d+\.\d{3,4}", ? (re)
           "cuser": "\s*\d+\.\d{3,4}", ? (re)
           "diff": "", ? (re)
           "end": "\s*\d+\.\d{3,4}", ? (re)
           "result": "skip", ? (re)
           "start": "\s*\d+\.\d{3,4}", ? (re)
           "time": "\s*\d+\.\d{3,4}" (re)
       }, ? (re)
       "test-success.t": [\{] (re)
           "csys": "\s*\d+\.\d{3,4}", ? (re)
           "cuser": "\s*\d+\.\d{3,4}", ? (re)
           "diff": "", ? (re)
           "end": "\s*\d+\.\d{3,4}", ? (re)
           "result": "success", ? (re)
           "start": "\s*\d+\.\d{3,4}", ? (re)
           "time": "\s*\d+\.\d{3,4}" (re)
       }
   } (no-eol)
 --json with --outputdir
 
   $ rm report.json
   $ rm -r output
   $ mkdir output
   $ rt --json --outputdir output
   running 3 tests using 1 parallel processes 
   
   --- $TESTTMP/test-failure.t
   +++ $TESTTMP/output/test-failure.t.err
   @@ -1,5 +1,5 @@
      $ echo babar
   -  rataxes
   +  babar
    This is a noop statement so that
    this test is still more bytes than success.
    pad pad pad pad............................................................
   
   ERROR: test-failure.t output changed
   !.s
   Skipped test-skip.t: missing feature: nail clipper
   Failed test-failure.t: output changed
   # Ran 2 tests, 1 skipped, 1 failed.
   python hash seed: * (glob)
   [1]
   $ f report.json
   report.json: file not found
   $ cat output/report.json
   testreport ={
       "test-failure.t": [\{] (re)
           "csys": "\s*\d+\.\d{3,4}", ? (re)
           "cuser": "\s*\d+\.\d{3,4}", ? (re)
           "diff": "---.+\+\+\+.+", ? (re)
           "end": "\s*\d+\.\d{3,4}", ? (re)
           "result": "failure", ? (re)
           "start": "\s*\d+\.\d{3,4}", ? (re)
           "time": "\s*\d+\.\d{3,4}" (re)
       }, ? (re)
       "test-skip.t": {
           "csys": "\s*\d+\.\d{3,4}", ? (re)
           "cuser": "\s*\d+\.\d{3,4}", ? (re)
           "diff": "", ? (re)
           "end": "\s*\d+\.\d{3,4}", ? (re)
           "result": "skip", ? (re)
           "start": "\s*\d+\.\d{3,4}", ? (re)
           "time": "\s*\d+\.\d{3,4}" (re)
       }, ? (re)
       "test-success.t": [\{] (re)
           "csys": "\s*\d+\.\d{3,4}", ? (re)
           "cuser": "\s*\d+\.\d{3,4}", ? (re)
           "diff": "", ? (re)
           "end": "\s*\d+\.\d{3,4}", ? (re)
           "result": "success", ? (re)
           "start": "\s*\d+\.\d{3,4}", ? (re)
           "time": "\s*\d+\.\d{3,4}" (re)
       }
   } (no-eol)
   $ ls -a output
   .
   ..
   .testtimes
   report.json
   test-failure.t.err
 
 Test that failed test accepted through interactive are properly reported:
 
   $ cp test-failure.t backup
   $ echo y | rt --json -i
   running 3 tests using 1 parallel processes 
   
   --- $TESTTMP/test-failure.t
   +++ $TESTTMP/test-failure.t.err
   @@ -1,5 +1,5 @@
      $ echo babar
   -  rataxes
   +  babar
    This is a noop statement so that
    this test is still more bytes than success.
    pad pad pad pad............................................................
   Accept this change? [y/N] ..s
   Skipped test-skip.t: missing feature: nail clipper
   # Ran 2 tests, 1 skipped, 0 failed.
 
   $ cat report.json
   testreport ={
       "test-failure.t": [\{] (re)
           "csys": "\s*\d+\.\d{3,4}", ? (re)
           "cuser": "\s*\d+\.\d{3,4}", ? (re)
           "diff": "", ? (re)
           "end": "\s*\d+\.\d{3,4}", ? (re)
           "result": "success", ? (re)
           "start": "\s*\d+\.\d{3,4}", ? (re)
           "time": "\s*\d+\.\d{3,4}" (re)
       }, ? (re)
       "test-skip.t": {
           "csys": "\s*\d+\.\d{3,4}", ? (re)
           "cuser": "\s*\d+\.\d{3,4}", ? (re)
           "diff": "", ? (re)
           "end": "\s*\d+\.\d{3,4}", ? (re)
           "result": "skip", ? (re)
           "start": "\s*\d+\.\d{3,4}", ? (re)
           "time": "\s*\d+\.\d{3,4}" (re)
       }, ? (re)
       "test-success.t": [\{] (re)
           "csys": "\s*\d+\.\d{3,4}", ? (re)
           "cuser": "\s*\d+\.\d{3,4}", ? (re)
           "diff": "", ? (re)
           "end": "\s*\d+\.\d{3,4}", ? (re)
           "result": "success", ? (re)
           "start": "\s*\d+\.\d{3,4}", ? (re)
           "time": "\s*\d+\.\d{3,4}" (re)
       }
   } (no-eol)
   $ mv backup test-failure.t
 
 backslash on end of line with glob matching is handled properly
 
   $ cat > test-glob-backslash.t << EOF
   >   $ echo 'foo bar \\'
   >   foo * \ (glob)
   > EOF
 
   $ rt test-glob-backslash.t
   running 1 tests using 1 parallel processes 
   .
   # Ran 1 tests, 0 skipped, 0 failed.
 
   $ rm -f test-glob-backslash.t
 
 Test globbing of local IP addresses
   $ echo 172.16.18.1
   $LOCALIP (glob)
   $ echo dead:beef::1
   $LOCALIP (glob)
 
 Add support for external test formatter
 =======================================
 
   $ CUSTOM_TEST_RESULT=basic_test_result "$PYTHON" $TESTDIR/run-tests.py --with-hg=`which hg` -j1 "$@" test-success.t test-failure.t
   running 2 tests using 1 parallel processes 
   
   # Ran 2 tests, 0 skipped, 0 failed.
   ON_START! <__main__.TestSuite tests=[<__main__.TTest testMethod=test-failure.t>, <__main__.TTest testMethod=test-success.t>]>
   FAILURE! test-failure.t output changed
   SUCCESS! test-success.t
   ON_END!
 
 Test reusability for third party tools
 ======================================
 
-  $ mkdir "$TESTTMP"/anothertests
-  $ cd "$TESTTMP"/anothertests
+  $ THISTESTDIR="$TESTDIR"
+  $ export THISTESTDIR
+  $ THISTESTTMP="$TESTTMP"
+  $ export THISTESTTMP
+
+#if windows
+
+  $ NEWTESTDIR="$THISTESTTMP"\\anothertests
+
+#else
+
+  $ NEWTESTDIR="$THISTESTTMP"/anothertests
+
+#endif
+
+  $ export NEWTESTDIR
+
+  $ echo creating some new test in: $NEWTESTDIR
+  creating some new test in: $TESTTMP\anothertests (windows !)
+  creating some new test in: $TESTTMP/anothertests (no-windows !)
+  $ mkdir "$NEWTESTDIR"
+  $ cd "$NEWTESTDIR"
 
 test that `run-tests.py` can execute hghave, even if it runs not in
 Mercurial source tree.
 
   $ cat > test-hghave.t <<EOF
   > #require true
   >   $ echo foo
   >   foo
   > EOF
   $ rt test-hghave.t
   running 1 tests using 1 parallel processes 
   .
   # Ran 1 tests, 0 skipped, 0 failed.
 
 test that RUNTESTDIR refers the directory, in which `run-tests.py` now
 running is placed.
 
+
   $ cat > test-runtestdir.t <<EOF
-  > - $TESTDIR, in which test-run-tests.t is placed
-  > - \$TESTDIR, in which test-runtestdir.t is placed (expanded at runtime)
-  > - \$RUNTESTDIR, in which run-tests.py is placed (expanded at runtime)
+  > # \$THISTESTDIR, in which test-run-tests.t (this test file) is placed
+  > # \$THISTESTTMP, in which test-run-tests.t (this test file) is placed
+  > # \$TESTDIR, in which test-runtestdir.t is placed (expanded at runtime)
+  > # \$RUNTESTDIR, in which run-tests.py is placed (expanded at runtime)
   > 
-  > #if windows
-  >   $ test "\$TESTDIR" = "$TESTTMP\\anothertests"
-  > #else
-  >   $ test "\$TESTDIR" = "$TESTTMP"/anothertests
-  > #endif
+  >   $ test "\$TESTDIR" = "\$NEWTESTDIR"
   > If this prints a path, that means RUNTESTDIR didn't equal
-  > TESTDIR as it should have.
-  >   $ test "\$RUNTESTDIR" = "$TESTDIR" || echo "\$RUNTESTDIR"
+  > THISTESTDIR as it should have.
+  >   $ test "\$RUNTESTDIR" = "\$THISTESTDIR" || echo "\$RUNTESTDIR"
   > This should print the start of check-code. If this passes but the
   > previous check failed, that means we found a copy of check-code at whatever
-  > RUNTESTSDIR ended up containing, even though it doesn't match TESTDIR.
+  > RUNTESTSDIR ended up containing, even though it doesn't match THISTESTDIR.
   >   $ head -n 3 "\$RUNTESTDIR"/../contrib/check-code.py | sed 's@.!.*python3@#!USRBINENVPY@'
   >   #!USRBINENVPY
   >   #
   >   # check-code - a style and portability checker for Mercurial
   > EOF
   $ rt test-runtestdir.t
   running 1 tests using 1 parallel processes 
   .
   # Ran 1 tests, 0 skipped, 0 failed.
 
 #if execbit
 
 test that TESTDIR is referred in PATH
 
   $ cat > custom-command.sh <<EOF
   > #!/bin/sh
   > echo "hello world"
   > EOF
   $ chmod +x custom-command.sh
   $ cat > test-testdir-path.t <<EOF
   >   $ custom-command.sh
   >   hello world
   > EOF
   $ rt test-testdir-path.t
   running 1 tests using 1 parallel processes 
   .
   # Ran 1 tests, 0 skipped, 0 failed.
 
 #endif
 
 test support for --allow-slow-tests
   $ cat > test-very-slow-test.t <<EOF
   > #require slow
   >   $ echo pass
   >   pass
   > EOF
   $ rt test-very-slow-test.t
   running 1 tests using 1 parallel processes 
   s
   Skipped test-very-slow-test.t: missing feature: allow slow tests (use --allow-slow-tests)
   # Ran 0 tests, 1 skipped, 0 failed.
   $ rt $HGTEST_RUN_TESTS_PURE --allow-slow-tests test-very-slow-test.t
   running 1 tests using 1 parallel processes 
   .
   # Ran 1 tests, 0 skipped, 0 failed.
 
 support for running a test outside the current directory
   $ mkdir nonlocal
   $ cat > nonlocal/test-is-not-here.t << EOF
   >   $ echo pass
   >   pass
   > EOF
   $ rt nonlocal/test-is-not-here.t
   running 1 tests using 1 parallel processes 
   .
   # Ran 1 tests, 0 skipped, 0 failed.
 
 support for automatically discovering test if arg is a folder
   $ mkdir tmp && cd tmp
 
   $ cat > test-uno.t << EOF
   >   $ echo line
   >   line
   > EOF
 
   $ cp test-uno.t test-dos.t
   $ cd ..
   $ cp -R tmp tmpp
   $ cp tmp/test-uno.t test-solo.t
 
   $ rt tmp/ test-solo.t tmpp
   running 5 tests using 1 parallel processes 
   .....
   # Ran 5 tests, 0 skipped, 0 failed.
   $ rm -rf tmp tmpp
 
 support for running run-tests.py from another directory
   $ mkdir tmp && cd tmp
 
   $ cat > useful-file.sh << EOF
   > important command
   > EOF
 
   $ cat > test-folder.t << EOF
   >   $ cat \$TESTDIR/useful-file.sh
   >   important command
   > EOF
 
   $ cat > test-folder-fail.t << EOF
   >   $ cat \$TESTDIR/useful-file.sh
   >   important commando
   > EOF
 
   $ cd ..
   $ rt tmp/test-*.t
   running 2 tests using 1 parallel processes 
   
   --- $TESTTMP/anothertests/tmp/test-folder-fail.t
   +++ $TESTTMP/anothertests/tmp/test-folder-fail.t.err
   @@ -1,2 +1,2 @@
      $ cat $TESTDIR/useful-file.sh
   -  important commando
   +  important command
   
   ERROR: test-folder-fail.t output changed
   !.
   Failed test-folder-fail.t: output changed
   # Ran 2 tests, 0 skipped, 1 failed.
   python hash seed: * (glob)
   [1]
 
 support for bisecting failed tests automatically
   $ hg init bisect
   $ cd bisect
   $ cat >> test-bisect.t <<EOF
   >   $ echo pass
   >   pass
   > EOF
   $ hg add test-bisect.t
   $ hg ci -m 'good'
   $ cat >> test-bisect.t <<EOF
   >   $ echo pass
   >   fail
   > EOF
   $ hg ci -m 'bad'
   $ rt --known-good-rev=0 test-bisect.t
   running 1 tests using 1 parallel processes 
   
   --- $TESTTMP/anothertests/bisect/test-bisect.t
   +++ $TESTTMP/anothertests/bisect/test-bisect.t.err
   @@ -1,4 +1,4 @@
      $ echo pass
      pass
      $ echo pass
   -  fail
   +  pass
   
   ERROR: test-bisect.t output changed
   !
   Failed test-bisect.t: output changed
   test-bisect.t broken by 72cbf122d116 (bad)
   # Ran 1 tests, 0 skipped, 1 failed.
   python hash seed: * (glob)
   [1]
 
   $ cd ..
 
 support bisecting a separate repo
 
   $ hg init bisect-dependent
   $ cd bisect-dependent
   $ cat > test-bisect-dependent.t <<EOF
   >   $ tail -1 \$TESTDIR/../bisect/test-bisect.t
   >     pass
   > EOF
   $ hg commit -Am dependent test-bisect-dependent.t
 
   $ rt --known-good-rev=0 test-bisect-dependent.t
   running 1 tests using 1 parallel processes 
   
   --- $TESTTMP/anothertests/bisect-dependent/test-bisect-dependent.t
   +++ $TESTTMP/anothertests/bisect-dependent/test-bisect-dependent.t.err
   @@ -1,2 +1,2 @@
      $ tail -1 $TESTDIR/../bisect/test-bisect.t
   -    pass
   +    fail
   
   ERROR: test-bisect-dependent.t output changed
   !
   Failed test-bisect-dependent.t: output changed
   Failed to identify failure point for test-bisect-dependent.t
   # Ran 1 tests, 0 skipped, 1 failed.
   python hash seed: * (glob)
   [1]
 
   $ rt --bisect-repo=../test-bisect test-bisect-dependent.t
   usage: run-tests.py [options] [tests]
   run-tests.py: error: --bisect-repo cannot be used without --known-good-rev
   [2]
 
   $ rt --known-good-rev=0 --bisect-repo=../bisect test-bisect-dependent.t
   running 1 tests using 1 parallel processes 
   
   --- $TESTTMP/anothertests/bisect-dependent/test-bisect-dependent.t
   +++ $TESTTMP/anothertests/bisect-dependent/test-bisect-dependent.t.err
   @@ -1,2 +1,2 @@
      $ tail -1 $TESTDIR/../bisect/test-bisect.t
   -    pass
   +    fail
   
   ERROR: test-bisect-dependent.t output changed
   !
   Failed test-bisect-dependent.t: output changed
   test-bisect-dependent.t broken by 72cbf122d116 (bad)
   # Ran 1 tests, 0 skipped, 1 failed.
   python hash seed: * (glob)
   [1]
 
   $ cd ..
 
 Test a broken #if statement doesn't break run-tests threading.
 ==============================================================
   $ mkdir broken
   $ cd broken
   $ cat > test-broken.t <<EOF
   > true
   > #if notarealhghavefeature
   >   $ false
   > #endif
   > EOF
   $ for f in 1 2 3 4 ; do
   > cat > test-works-$f.t <<EOF
   > This is test case $f
   >   $ sleep 1
   > EOF
   > done
   $ rt -j 2
   running 5 tests using 2 parallel processes 
   ....
   # Ran 5 tests, 0 skipped, 0 failed.
   skipped: unknown feature: notarealhghavefeature
   
   $ cd ..
   $ rm -rf broken
 
 Test cases in .t files
 ======================
   $ mkdir cases
   $ cd cases
   $ cat > test-cases-abc.t <<'EOF'
   > #testcases A B C
   >   $ V=B
   > #if A
   >   $ V=A
   > #endif
   > #if C
   >   $ V=C
   > #endif
   >   $ echo $V | sed 's/A/C/'
   >   C
   > #if C
   >   $ [ $V = C ]
   > #endif
   > #if A
   >   $ [ $V = C ]
   >   [1]
   > #endif
   > #if no-C
   >   $ [ $V = C ]
   >   [1]
   > #endif
   >   $ [ $V = D ]
   >   [1]
   > EOF
   $ rt
   running 3 tests using 1 parallel processes 
   .
   --- $TESTTMP/anothertests/cases/test-cases-abc.t
   +++ $TESTTMP/anothertests/cases/test-cases-abc.t#B.err
   @@ -7,7 +7,7 @@
      $ V=C
    #endif
      $ echo $V | sed 's/A/C/'
   -  C
   +  B
    #if C
      $ [ $V = C ]
    #endif
   
   ERROR: test-cases-abc.t#B output changed
   !.
   Failed test-cases-abc.t#B: output changed
   # Ran 3 tests, 0 skipped, 1 failed.
   python hash seed: * (glob)
   [1]
 
 --restart works
 
   $ rt --restart
   running 2 tests using 1 parallel processes 
   
   --- $TESTTMP/anothertests/cases/test-cases-abc.t
   +++ $TESTTMP/anothertests/cases/test-cases-abc.t#B.err
   @@ -7,7 +7,7 @@
      $ V=C
    #endif
      $ echo $V | sed 's/A/C/'
   -  C
   +  B
    #if C
      $ [ $V = C ]
    #endif
   
   ERROR: test-cases-abc.t#B output changed
   !.
   Failed test-cases-abc.t#B: output changed
   # Ran 2 tests, 0 skipped, 1 failed.
   python hash seed: * (glob)
   [1]
 
 --restart works with outputdir
 
   $ mkdir output
   $ mv test-cases-abc.t#B.err output
   $ rt --restart --outputdir output
   running 2 tests using 1 parallel processes 
   
   --- $TESTTMP/anothertests/cases/test-cases-abc.t
   +++ $TESTTMP/anothertests/cases/output/test-cases-abc.t#B.err
   @@ -7,7 +7,7 @@
      $ V=C
    #endif
      $ echo $V | sed 's/A/C/'
   -  C
   +  B
    #if C
      $ [ $V = C ]
    #endif
   
   ERROR: test-cases-abc.t#B output changed
   !.
   Failed test-cases-abc.t#B: output changed
   # Ran 2 tests, 0 skipped, 1 failed.
   python hash seed: * (glob)
   [1]
 
 Test TESTCASE variable
 
   $ cat > test-cases-ab.t <<'EOF'
   >   $ dostuff() {
   >   >   echo "In case $TESTCASE"
   >   > }
   > #testcases A B
   > #if A
   >   $ dostuff
   >   In case A
   > #endif
   > #if B
   >   $ dostuff
   >   In case B
   > #endif
   > EOF
   $ rt test-cases-ab.t
   running 2 tests using 1 parallel processes 
   ..
   # Ran 2 tests, 0 skipped, 0 failed.
 
 Support running a specific test case
 
   $ rt "test-cases-abc.t#B"
   running 1 tests using 1 parallel processes 
   
   --- $TESTTMP/anothertests/cases/test-cases-abc.t
   +++ $TESTTMP/anothertests/cases/test-cases-abc.t#B.err
   @@ -7,7 +7,7 @@
      $ V=C
    #endif
      $ echo $V | sed 's/A/C/'
   -  C
   +  B
    #if C
      $ [ $V = C ]
    #endif
   
   ERROR: test-cases-abc.t#B output changed
   !
   Failed test-cases-abc.t#B: output changed
   # Ran 1 tests, 0 skipped, 1 failed.
   python hash seed: * (glob)
   [1]
 
 Support running multiple test cases in the same file
 
   $ rt test-cases-abc.t#B test-cases-abc.t#C
   running 2 tests using 1 parallel processes 
   
   --- $TESTTMP/anothertests/cases/test-cases-abc.t
   +++ $TESTTMP/anothertests/cases/test-cases-abc.t#B.err
   @@ -7,7 +7,7 @@
      $ V=C
    #endif
      $ echo $V | sed 's/A/C/'
   -  C
   +  B
    #if C
      $ [ $V = C ]
    #endif
   
   ERROR: test-cases-abc.t#B output changed
   !.
   Failed test-cases-abc.t#B: output changed
   # Ran 2 tests, 0 skipped, 1 failed.
   python hash seed: * (glob)
   [1]
 
 Support ignoring invalid test cases
 
   $ rt test-cases-abc.t#B test-cases-abc.t#D
   running 1 tests using 1 parallel processes 
   
   --- $TESTTMP/anothertests/cases/test-cases-abc.t
   +++ $TESTTMP/anothertests/cases/test-cases-abc.t#B.err
   @@ -7,7 +7,7 @@
      $ V=C
    #endif
      $ echo $V | sed 's/A/C/'
   -  C
   +  B
    #if C
      $ [ $V = C ]
    #endif
   
   ERROR: test-cases-abc.t#B output changed
   !
   Failed test-cases-abc.t#B: output changed
   # Ran 1 tests, 0 skipped, 1 failed.
   python hash seed: * (glob)
   [1]
 
 Support running complex test cases names
 
   $ cat > test-cases-advanced-cases.t <<'EOF'
   > #testcases simple case-with-dashes casewith_-.chars
   >   $ echo $TESTCASE
   >   simple
   > EOF
 
   $ cat test-cases-advanced-cases.t
   #testcases simple case-with-dashes casewith_-.chars
     $ echo $TESTCASE
     simple
 
   $ rt test-cases-advanced-cases.t
   running 3 tests using 1 parallel processes 
   
   --- $TESTTMP/anothertests/cases/test-cases-advanced-cases.t
   +++ $TESTTMP/anothertests/cases/test-cases-advanced-cases.t#case-with-dashes.err
   @@ -1,3 +1,3 @@
    #testcases simple case-with-dashes casewith_-.chars
      $ echo $TESTCASE
   -  simple
   +  case-with-dashes
   
   ERROR: test-cases-advanced-cases.t#case-with-dashes output changed
   !
   --- $TESTTMP/anothertests/cases/test-cases-advanced-cases.t
   +++ $TESTTMP/anothertests/cases/test-cases-advanced-cases.t#casewith_-.chars.err
   @@ -1,3 +1,3 @@
    #testcases simple case-with-dashes casewith_-.chars
      $ echo $TESTCASE
   -  simple
   +  casewith_-.chars
   
   ERROR: test-cases-advanced-cases.t#casewith_-.chars output changed
   !.
   Failed test-cases-advanced-cases.t#case-with-dashes: output changed
   Failed test-cases-advanced-cases.t#casewith_-.chars: output changed
   # Ran 3 tests, 0 skipped, 2 failed.
   python hash seed: * (glob)
   [1]
 
   $ rt "test-cases-advanced-cases.t#case-with-dashes"
   running 1 tests using 1 parallel processes 
   
   --- $TESTTMP/anothertests/cases/test-cases-advanced-cases.t
   +++ $TESTTMP/anothertests/cases/test-cases-advanced-cases.t#case-with-dashes.err
   @@ -1,3 +1,3 @@
    #testcases simple case-with-dashes casewith_-.chars
      $ echo $TESTCASE
   -  simple
   +  case-with-dashes
   
   ERROR: test-cases-advanced-cases.t#case-with-dashes output changed
   !
   Failed test-cases-advanced-cases.t#case-with-dashes: output changed
   # Ran 1 tests, 0 skipped, 1 failed.
   python hash seed: * (glob)
   [1]
 
   $ rt "test-cases-advanced-cases.t#casewith_-.chars"
   running 1 tests using 1 parallel processes 
   
   --- $TESTTMP/anothertests/cases/test-cases-advanced-cases.t
   +++ $TESTTMP/anothertests/cases/test-cases-advanced-cases.t#casewith_-.chars.err
   @@ -1,3 +1,3 @@
    #testcases simple case-with-dashes casewith_-.chars
      $ echo $TESTCASE
   -  simple
   +  casewith_-.chars
   
   ERROR: test-cases-advanced-cases.t#casewith_-.chars output changed
   !
   Failed test-cases-advanced-cases.t#casewith_-.chars: output changed
   # Ran 1 tests, 0 skipped, 1 failed.
   python hash seed: * (glob)
   [1]
 
 Test automatic pattern replacement
 ==================================
 
   $ cat << EOF >> common-pattern.py
   > substitutions = [
   >     (br'foo-(.*)\\b',
   >      br'\$XXX=\\1\$'),
   >     (br'bar\\n',
   >      br'\$YYY$\\n'),
   > ]
   > EOF
 
   $ cat << EOF >> test-substitution.t
   >   $ echo foo-12
   >   \$XXX=12$
   >   $ echo foo-42
   >   \$XXX=42$
   >   $ echo bar prior
   >   bar prior
   >   $ echo lastbar
   >   last\$YYY$
   >   $ echo foo-bar foo-baz
   > EOF
 
   $ rt test-substitution.t
   running 1 tests using 1 parallel processes 
   
   --- $TESTTMP/anothertests/cases/test-substitution.t
   +++ $TESTTMP/anothertests/cases/test-substitution.t.err
   @@ -7,3 +7,4 @@
      $ echo lastbar
      last$YYY$
      $ echo foo-bar foo-baz
   +  $XXX=bar foo-baz$
   
   ERROR: test-substitution.t output changed
   !
   Failed test-substitution.t: output changed
   # Ran 1 tests, 0 skipped, 1 failed.
   python hash seed: * (glob)
   [1]
 
 --extra-config-opt works
 
   $ cat << EOF >> test-config-opt.t
   >   $ hg init test-config-opt
   >   $ hg -R test-config-opt purge
   >   $ echo "HGTESTEXTRAEXTENSIONS: \$HGTESTEXTRAEXTENSIONS"
   >   HGTESTEXTRAEXTENSIONS: purge
   > EOF
 
   $ rt --extra-config-opt extensions.purge= \
   >    --extra-config-opt not.an.extension=True test-config-opt.t
   running 1 tests using 1 parallel processes 
   .
   # Ran 1 tests, 0 skipped, 0 failed.
 
 Test conditional output matching
 ================================
 
   $ cat << EOF >> test-conditional-matching.t
   > #testcases foo bar
   >   $ echo richtig
   >   richtig (true !)
   >   $ echo falsch
   >   falsch (false !)
   > #if foo
   >   $ echo arthur
   >   arthur (bar !)
   > #endif
   >   $ echo celeste
   >   celeste (foo !)
   >   $ echo zephir
   >   zephir (bar !)
   > EOF
 
   $ rt test-conditional-matching.t
   running 2 tests using 1 parallel processes 
   
   --- $TESTTMP/anothertests/cases/test-conditional-matching.t
   +++ $TESTTMP/anothertests/cases/test-conditional-matching.t#bar.err
   @@ -3,11 +3,13 @@
      richtig (true !)
      $ echo falsch
      falsch (false !)
   +  falsch
    #if foo
      $ echo arthur
      arthur \(bar !\) (re)
    #endif
      $ echo celeste
      celeste \(foo !\) (re)
   +  celeste
      $ echo zephir
      zephir \(bar !\) (re)
   
   ERROR: test-conditional-matching.t#bar output changed
   !
   --- $TESTTMP/anothertests/cases/test-conditional-matching.t
   +++ $TESTTMP/anothertests/cases/test-conditional-matching.t#foo.err
   @@ -3,11 +3,14 @@
      richtig (true !)
      $ echo falsch
      falsch (false !)
   +  falsch
    #if foo
      $ echo arthur
      arthur \(bar !\) (re)
   +  arthur
    #endif
      $ echo celeste
      celeste \(foo !\) (re)
      $ echo zephir
      zephir \(bar !\) (re)
   +  zephir
   
   ERROR: test-conditional-matching.t#foo output changed
   !
   Failed test-conditional-matching.t#bar: output changed
   Failed test-conditional-matching.t#foo: output changed
   # Ran 2 tests, 0 skipped, 2 failed.
   python hash seed: * (glob)
   [1]
 
 Test that a proper "python" has been set up
 ===========================================
 
 (with a small check-code work around)
   $ printf "#!/usr/bi" > test-py3.tmp
   $ printf "n/en" >> test-py3.tmp
   $ cat << EOF >> test-py3.tmp
   > v python3
   > import sys
   > print('.'.join(str(x) for x in sys.version_info))
   > EOF
   $ mv test-py3.tmp test-py3.py
   $ chmod +x test-py3.py
 
 (with a small check-code work around)
   $ printf "#!/usr/bi" > test-py.tmp
   $ printf "n/en" >> test-py.tmp
   $ cat << EOF >> test-py.tmp
   > v python
   > import sys
   > print('.'.join(str(x) for x in sys.version_info))
   > EOF
   $ mv test-py.tmp test-py.py
   $ chmod +x test-py.py
 
   $ ./test-py3.py
   3.* (glob)
   $ ./test-py.py
   2.* (glob) (no-py3 !)
   3.* (glob) (py3 !)