# HG changeset patch
# User Gregory Szorc <gregory.szorc@gmail.com>
# Date 2016-11-11 07:38:41
# Node ID de48d3a0573aab57a2b65045f601a3cb47d1ff39
# Parent  c3944ab1443a0a8872a5e9ca48b21ea973cf6f90

hghave: add check for zstd support

Not all configurations will support zstd. Add a check so we can
conditionalize tests.

diff --git a/tests/hghave.py b/tests/hghave.py
--- a/tests/hghave.py
+++ b/tests/hghave.py
@@ -610,3 +610,12 @@ def has_hypothesis():
 @check("unziplinks", "unzip(1) understands and extracts symlinks")
 def unzip_understands_symlinks():
     return matchoutput('unzip --help', br'Info-ZIP')
+
+@check("zstd", "zstd Python module available")
+def has_zstd():
+    try:
+        import mercurial.zstd
+        mercurial.zstd.__version__
+        return True
+    except ImportError:
+        return False