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@@ -1,269 +1,269 b'' | |||||
1 | # encoding: utf-8 |
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1 | # encoding: utf-8 | |
2 | """ |
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2 | """ | |
3 | Test process execution and IO redirection. |
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3 | Test process execution and IO redirection. | |
4 | """ |
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4 | """ | |
5 |
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5 | |||
6 | __docformat__ = "restructuredtext en" |
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6 | __docformat__ = "restructuredtext en" | |
7 |
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7 | |||
8 | #------------------------------------------------------------------------------- |
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8 | #------------------------------------------------------------------------------- | |
9 | # Copyright (C) 2008 The IPython Development Team |
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9 | # Copyright (C) 2008 The IPython Development Team | |
10 | # |
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10 | # | |
11 | # Distributed under the terms of the BSD License. The full license is |
|
11 | # Distributed under the terms of the BSD License. The full license is | |
12 | # in the file COPYING, distributed as part of this software. |
|
12 | # in the file COPYING, distributed as part of this software. | |
13 | #------------------------------------------------------------------------------- |
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13 | #------------------------------------------------------------------------------- | |
14 |
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14 | |||
15 | from copy import copy, deepcopy |
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15 | from copy import copy, deepcopy | |
16 | from cStringIO import StringIO |
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16 | from cStringIO import StringIO | |
17 | import string |
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17 | import string | |
18 | import sys |
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18 | import sys | |
19 |
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19 | |||
20 | from nose.tools import assert_equal |
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20 | from nose.tools import assert_equal | |
21 |
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21 | |||
22 | from IPython.frontend.prefilterfrontend import PrefilterFrontEnd |
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22 | from IPython.frontend.prefilterfrontend import PrefilterFrontEnd | |
23 |
from IPython. |
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23 | from IPython.testing.globalipapp import get_ipython | |
24 | from IPython.testing.tools import default_argv |
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24 | from IPython.testing.tools import default_argv | |
25 |
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25 | |||
26 | #----------------------------------------------------------------------------- |
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26 | #----------------------------------------------------------------------------- | |
27 | # Support utilities |
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27 | # Support utilities | |
28 | #----------------------------------------------------------------------------- |
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28 | #----------------------------------------------------------------------------- | |
29 |
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29 | |||
30 | class TestPrefilterFrontEnd(PrefilterFrontEnd): |
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30 | class TestPrefilterFrontEnd(PrefilterFrontEnd): | |
31 |
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31 | |||
32 | input_prompt_template = string.Template('') |
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32 | input_prompt_template = string.Template('') | |
33 | output_prompt_template = string.Template('') |
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33 | output_prompt_template = string.Template('') | |
34 | banner = '' |
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34 | banner = '' | |
35 |
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35 | |||
36 | def __init__(self): |
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36 | def __init__(self): | |
37 | self.out = StringIO() |
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37 | self.out = StringIO() | |
38 | PrefilterFrontEnd.__init__(self,argv=default_argv()) |
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38 | PrefilterFrontEnd.__init__(self,argv=default_argv()) | |
39 | # Some more code for isolation (yeah, crazy) |
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39 | # Some more code for isolation (yeah, crazy) | |
40 | self._on_enter() |
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40 | self._on_enter() | |
41 | self.out.flush() |
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41 | self.out.flush() | |
42 | self.out.reset() |
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42 | self.out.reset() | |
43 | self.out.truncate() |
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43 | self.out.truncate() | |
44 |
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44 | |||
45 | def write(self, string, *args, **kwargs): |
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45 | def write(self, string, *args, **kwargs): | |
46 | self.out.write(string) |
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46 | self.out.write(string) | |
47 |
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47 | |||
48 | def _on_enter(self): |
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48 | def _on_enter(self): | |
49 | self.input_buffer += '\n' |
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49 | self.input_buffer += '\n' | |
50 | PrefilterFrontEnd._on_enter(self) |
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50 | PrefilterFrontEnd._on_enter(self) | |
51 |
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51 | |||
52 |
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52 | |||
53 | def isolate_ipython0(func): |
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53 | def isolate_ipython0(func): | |
54 | """ Decorator to isolate execution that involves an iptyhon0. |
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54 | """ Decorator to isolate execution that involves an iptyhon0. | |
55 |
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55 | |||
56 | Notes |
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56 | Notes | |
57 | ----- |
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57 | ----- | |
58 |
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58 | |||
59 | Apply only to functions with no arguments. Nose skips functions |
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59 | Apply only to functions with no arguments. Nose skips functions | |
60 | with arguments. |
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60 | with arguments. | |
61 | """ |
|
61 | """ | |
62 | def my_func(): |
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62 | def my_func(): | |
63 |
ip0 = get_ipython |
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63 | ip0 = get_ipython() | |
64 | if ip0 is None: |
|
64 | if ip0 is None: | |
65 | return func() |
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65 | return func() | |
66 | # We have a real ipython running... |
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66 | # We have a real ipython running... | |
67 | user_ns = ip0.user_ns |
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67 | user_ns = ip0.user_ns | |
68 | user_global_ns = ip0.user_global_ns |
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68 | user_global_ns = ip0.user_global_ns | |
69 |
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69 | |||
70 | # Previously the isolation was attempted with a deep copy of the user |
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70 | # Previously the isolation was attempted with a deep copy of the user | |
71 | # dicts, but we found cases where this didn't work correctly. I'm not |
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71 | # dicts, but we found cases where this didn't work correctly. I'm not | |
72 | # quite sure why, but basically it did damage the user namespace, such |
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72 | # quite sure why, but basically it did damage the user namespace, such | |
73 | # that later tests stopped working correctly. Instead we use a simpler |
|
73 | # that later tests stopped working correctly. Instead we use a simpler | |
74 | # approach, just computing the list of added keys to the namespace and |
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74 | # approach, just computing the list of added keys to the namespace and | |
75 | # eliminating those afterwards. Existing keys that may have been |
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75 | # eliminating those afterwards. Existing keys that may have been | |
76 | # modified remain modified. So far this has proven to be robust. |
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76 | # modified remain modified. So far this has proven to be robust. | |
77 |
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77 | |||
78 | # Compute set of old local/global keys |
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78 | # Compute set of old local/global keys | |
79 | old_locals = set(user_ns.keys()) |
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79 | old_locals = set(user_ns.keys()) | |
80 | old_globals = set(user_global_ns.keys()) |
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80 | old_globals = set(user_global_ns.keys()) | |
81 | try: |
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81 | try: | |
82 | out = func() |
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82 | out = func() | |
83 | finally: |
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83 | finally: | |
84 | # Find new keys, and if any, remove them |
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84 | # Find new keys, and if any, remove them | |
85 | new_locals = set(user_ns.keys()) - old_locals |
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85 | new_locals = set(user_ns.keys()) - old_locals | |
86 | new_globals = set(user_global_ns.keys()) - old_globals |
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86 | new_globals = set(user_global_ns.keys()) - old_globals | |
87 | for k in new_locals: |
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87 | for k in new_locals: | |
88 | del user_ns[k] |
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88 | del user_ns[k] | |
89 | for k in new_globals: |
|
89 | for k in new_globals: | |
90 | del user_global_ns[k] |
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90 | del user_global_ns[k] | |
91 | return out |
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91 | return out | |
92 |
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92 | |||
93 | my_func.__name__ = func.__name__ |
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93 | my_func.__name__ = func.__name__ | |
94 | return my_func |
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94 | return my_func | |
95 |
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95 | |||
96 | #----------------------------------------------------------------------------- |
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96 | #----------------------------------------------------------------------------- | |
97 | # Tests |
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97 | # Tests | |
98 | #----------------------------------------------------------------------------- |
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98 | #----------------------------------------------------------------------------- | |
99 |
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99 | |||
100 | @isolate_ipython0 |
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100 | @isolate_ipython0 | |
101 | def test_execution(): |
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101 | def test_execution(): | |
102 | """ Test execution of a command. |
|
102 | """ Test execution of a command. | |
103 | """ |
|
103 | """ | |
104 | f = TestPrefilterFrontEnd() |
|
104 | f = TestPrefilterFrontEnd() | |
105 | f.input_buffer = 'print(1)' |
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105 | f.input_buffer = 'print(1)' | |
106 | f._on_enter() |
|
106 | f._on_enter() | |
107 | out_value = f.out.getvalue() |
|
107 | out_value = f.out.getvalue() | |
108 | assert_equal(out_value, '1\n') |
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108 | assert_equal(out_value, '1\n') | |
109 |
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109 | |||
110 |
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110 | |||
111 | @isolate_ipython0 |
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111 | @isolate_ipython0 | |
112 | def test_multiline(): |
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112 | def test_multiline(): | |
113 | """ Test execution of a multiline command. |
|
113 | """ Test execution of a multiline command. | |
114 | """ |
|
114 | """ | |
115 | f = TestPrefilterFrontEnd() |
|
115 | f = TestPrefilterFrontEnd() | |
116 | f.input_buffer = 'if True:' |
|
116 | f.input_buffer = 'if True:' | |
117 | f._on_enter() |
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117 | f._on_enter() | |
118 | f.input_buffer += 'print 1' |
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118 | f.input_buffer += 'print 1' | |
119 | f._on_enter() |
|
119 | f._on_enter() | |
120 | out_value = f.out.getvalue() |
|
120 | out_value = f.out.getvalue() | |
121 | yield assert_equal, out_value, '' |
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121 | yield assert_equal, out_value, '' | |
122 | f._on_enter() |
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122 | f._on_enter() | |
123 | out_value = f.out.getvalue() |
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123 | out_value = f.out.getvalue() | |
124 | yield assert_equal, out_value, '1\n' |
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124 | yield assert_equal, out_value, '1\n' | |
125 | f = TestPrefilterFrontEnd() |
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125 | f = TestPrefilterFrontEnd() | |
126 | f.input_buffer='(1 +' |
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126 | f.input_buffer='(1 +' | |
127 | f._on_enter() |
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127 | f._on_enter() | |
128 | f.input_buffer += '0)' |
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128 | f.input_buffer += '0)' | |
129 | f._on_enter() |
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129 | f._on_enter() | |
130 | out_value = f.out.getvalue() |
|
130 | out_value = f.out.getvalue() | |
131 | yield assert_equal, out_value, '' |
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131 | yield assert_equal, out_value, '' | |
132 | f._on_enter() |
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132 | f._on_enter() | |
133 | out_value = f.out.getvalue() |
|
133 | out_value = f.out.getvalue() | |
134 | yield assert_equal, out_value, '1\n' |
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134 | yield assert_equal, out_value, '1\n' | |
135 |
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135 | |||
136 |
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136 | |||
137 | @isolate_ipython0 |
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137 | @isolate_ipython0 | |
138 | def test_capture(): |
|
138 | def test_capture(): | |
139 | """ Test the capture of output in different channels. |
|
139 | """ Test the capture of output in different channels. | |
140 | """ |
|
140 | """ | |
141 | # Test on the OS-level stdout, stderr. |
|
141 | # Test on the OS-level stdout, stderr. | |
142 | f = TestPrefilterFrontEnd() |
|
142 | f = TestPrefilterFrontEnd() | |
143 | f.input_buffer = \ |
|
143 | f.input_buffer = \ | |
144 | 'import os; out=os.fdopen(1, "w"); out.write("1") ; out.flush()' |
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144 | 'import os; out=os.fdopen(1, "w"); out.write("1") ; out.flush()' | |
145 | f._on_enter() |
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145 | f._on_enter() | |
146 | out_value = f.out.getvalue() |
|
146 | out_value = f.out.getvalue() | |
147 | yield assert_equal, out_value, '1' |
|
147 | yield assert_equal, out_value, '1' | |
148 | f = TestPrefilterFrontEnd() |
|
148 | f = TestPrefilterFrontEnd() | |
149 | f.input_buffer = \ |
|
149 | f.input_buffer = \ | |
150 | 'import os; out=os.fdopen(2, "w"); out.write("1") ; out.flush()' |
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150 | 'import os; out=os.fdopen(2, "w"); out.write("1") ; out.flush()' | |
151 | f._on_enter() |
|
151 | f._on_enter() | |
152 | out_value = f.out.getvalue() |
|
152 | out_value = f.out.getvalue() | |
153 | yield assert_equal, out_value, '1' |
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153 | yield assert_equal, out_value, '1' | |
154 |
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154 | |||
155 |
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155 | |||
156 | @isolate_ipython0 |
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156 | @isolate_ipython0 | |
157 | def test_magic(): |
|
157 | def test_magic(): | |
158 | """ Test the magic expansion and history. |
|
158 | """ Test the magic expansion and history. | |
159 |
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159 | |||
160 | This test is fairly fragile and will break when magics change. |
|
160 | This test is fairly fragile and will break when magics change. | |
161 | """ |
|
161 | """ | |
162 | f = TestPrefilterFrontEnd() |
|
162 | f = TestPrefilterFrontEnd() | |
163 | # Before checking the interactive namespace, make sure it's clear (it can |
|
163 | # Before checking the interactive namespace, make sure it's clear (it can | |
164 | # otherwise pick up things stored in the user's local db) |
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164 | # otherwise pick up things stored in the user's local db) | |
165 | f.input_buffer += '%reset -f' |
|
165 | f.input_buffer += '%reset -f' | |
166 | f._on_enter() |
|
166 | f._on_enter() | |
167 | f.complete_current_input() |
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167 | f.complete_current_input() | |
168 | # Now, run the %who magic and check output |
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168 | # Now, run the %who magic and check output | |
169 | f.input_buffer += '%who' |
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169 | f.input_buffer += '%who' | |
170 | f._on_enter() |
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170 | f._on_enter() | |
171 | out_value = f.out.getvalue() |
|
171 | out_value = f.out.getvalue() | |
172 | assert_equal(out_value, 'Interactive namespace is empty.\n') |
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172 | assert_equal(out_value, 'Interactive namespace is empty.\n') | |
173 |
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173 | |||
174 |
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174 | |||
175 | @isolate_ipython0 |
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175 | @isolate_ipython0 | |
176 | def test_help(): |
|
176 | def test_help(): | |
177 | """ Test object inspection. |
|
177 | """ Test object inspection. | |
178 | """ |
|
178 | """ | |
179 | f = TestPrefilterFrontEnd() |
|
179 | f = TestPrefilterFrontEnd() | |
180 | f.input_buffer += "def f():" |
|
180 | f.input_buffer += "def f():" | |
181 | f._on_enter() |
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181 | f._on_enter() | |
182 | f.input_buffer += "'foobar'" |
|
182 | f.input_buffer += "'foobar'" | |
183 | f._on_enter() |
|
183 | f._on_enter() | |
184 | f.input_buffer += "pass" |
|
184 | f.input_buffer += "pass" | |
185 | f._on_enter() |
|
185 | f._on_enter() | |
186 | f._on_enter() |
|
186 | f._on_enter() | |
187 | f.input_buffer += "f?" |
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187 | f.input_buffer += "f?" | |
188 | f._on_enter() |
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188 | f._on_enter() | |
189 | assert 'traceback' not in f.last_result |
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189 | assert 'traceback' not in f.last_result | |
190 | ## XXX: ipython doctest magic breaks this. I have no clue why |
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190 | ## XXX: ipython doctest magic breaks this. I have no clue why | |
191 | #out_value = f.out.getvalue() |
|
191 | #out_value = f.out.getvalue() | |
192 | #assert out_value.split()[-1] == 'foobar' |
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192 | #assert out_value.split()[-1] == 'foobar' | |
193 |
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193 | |||
194 |
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194 | |||
195 | @isolate_ipython0 |
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195 | @isolate_ipython0 | |
196 | def test_completion_simple(): |
|
196 | def test_completion_simple(): | |
197 | """ Test command-line completion on trivial examples. |
|
197 | """ Test command-line completion on trivial examples. | |
198 | """ |
|
198 | """ | |
199 | f = TestPrefilterFrontEnd() |
|
199 | f = TestPrefilterFrontEnd() | |
200 | f.input_buffer = 'zzza = 1' |
|
200 | f.input_buffer = 'zzza = 1' | |
201 | f._on_enter() |
|
201 | f._on_enter() | |
202 | f.input_buffer = 'zzzb = 2' |
|
202 | f.input_buffer = 'zzzb = 2' | |
203 | f._on_enter() |
|
203 | f._on_enter() | |
204 | f.input_buffer = 'zz' |
|
204 | f.input_buffer = 'zz' | |
205 | f.complete_current_input() |
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205 | f.complete_current_input() | |
206 | out_value = f.out.getvalue() |
|
206 | out_value = f.out.getvalue() | |
207 | yield assert_equal, out_value, '\nzzza zzzb ' |
|
207 | yield assert_equal, out_value, '\nzzza zzzb ' | |
208 | yield assert_equal, f.input_buffer, 'zzz' |
|
208 | yield assert_equal, f.input_buffer, 'zzz' | |
209 |
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209 | |||
210 |
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210 | |||
211 | @isolate_ipython0 |
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211 | @isolate_ipython0 | |
212 | def test_completion_parenthesis(): |
|
212 | def test_completion_parenthesis(): | |
213 | """ Test command-line completion when a parenthesis is open. |
|
213 | """ Test command-line completion when a parenthesis is open. | |
214 | """ |
|
214 | """ | |
215 | f = TestPrefilterFrontEnd() |
|
215 | f = TestPrefilterFrontEnd() | |
216 | f.input_buffer = 'zzza = 1' |
|
216 | f.input_buffer = 'zzza = 1' | |
217 | f._on_enter() |
|
217 | f._on_enter() | |
218 | f.input_buffer = 'zzzb = 2' |
|
218 | f.input_buffer = 'zzzb = 2' | |
219 | f._on_enter() |
|
219 | f._on_enter() | |
220 | f.input_buffer = 'map(zz' |
|
220 | f.input_buffer = 'map(zz' | |
221 | f.complete_current_input() |
|
221 | f.complete_current_input() | |
222 | out_value = f.out.getvalue() |
|
222 | out_value = f.out.getvalue() | |
223 | yield assert_equal, out_value, '\nzzza zzzb ' |
|
223 | yield assert_equal, out_value, '\nzzza zzzb ' | |
224 | yield assert_equal, f.input_buffer, 'map(zzz' |
|
224 | yield assert_equal, f.input_buffer, 'map(zzz' | |
225 |
|
225 | |||
226 |
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226 | |||
227 | @isolate_ipython0 |
|
227 | @isolate_ipython0 | |
228 | def test_completion_indexing(): |
|
228 | def test_completion_indexing(): | |
229 | """ Test command-line completion when indexing on objects. |
|
229 | """ Test command-line completion when indexing on objects. | |
230 | """ |
|
230 | """ | |
231 | f = TestPrefilterFrontEnd() |
|
231 | f = TestPrefilterFrontEnd() | |
232 | f.input_buffer = 'a = [0]' |
|
232 | f.input_buffer = 'a = [0]' | |
233 | f._on_enter() |
|
233 | f._on_enter() | |
234 | f.input_buffer = 'a[0].' |
|
234 | f.input_buffer = 'a[0].' | |
235 | f.complete_current_input() |
|
235 | f.complete_current_input() | |
236 |
|
236 | |||
237 | if sys.version_info[:2] >= (2,6): |
|
237 | if sys.version_info[:2] >= (2,6): | |
238 | # In Python 2.6, ints picked up a few non __ methods, so now there are |
|
238 | # In Python 2.6, ints picked up a few non __ methods, so now there are | |
239 | # no completions. |
|
239 | # no completions. | |
240 | assert_equal(f.input_buffer, 'a[0].') |
|
240 | assert_equal(f.input_buffer, 'a[0].') | |
241 | else: |
|
241 | else: | |
242 | # Right answer for 2.4/2.5 |
|
242 | # Right answer for 2.4/2.5 | |
243 | assert_equal(f.input_buffer, 'a[0].__') |
|
243 | assert_equal(f.input_buffer, 'a[0].__') | |
244 |
|
244 | |||
245 |
|
245 | |||
246 | @isolate_ipython0 |
|
246 | @isolate_ipython0 | |
247 | def test_completion_equal(): |
|
247 | def test_completion_equal(): | |
248 | """ Test command-line completion when the delimiter is "=", not " ". |
|
248 | """ Test command-line completion when the delimiter is "=", not " ". | |
249 | """ |
|
249 | """ | |
250 | f = TestPrefilterFrontEnd() |
|
250 | f = TestPrefilterFrontEnd() | |
251 | f.input_buffer = 'a=1.' |
|
251 | f.input_buffer = 'a=1.' | |
252 | f.complete_current_input() |
|
252 | f.complete_current_input() | |
253 | if sys.version_info[:2] >= (2,6): |
|
253 | if sys.version_info[:2] >= (2,6): | |
254 | # In Python 2.6, ints picked up a few non __ methods, so now there are |
|
254 | # In Python 2.6, ints picked up a few non __ methods, so now there are | |
255 | # no completions. |
|
255 | # no completions. | |
256 | assert_equal(f.input_buffer, 'a=1.') |
|
256 | assert_equal(f.input_buffer, 'a=1.') | |
257 | else: |
|
257 | else: | |
258 | # Right answer for 2.4/2.5 |
|
258 | # Right answer for 2.4/2.5 | |
259 | assert_equal(f.input_buffer, 'a=1.__') |
|
259 | assert_equal(f.input_buffer, 'a=1.__') | |
260 |
|
260 | |||
261 |
|
261 | |||
262 | if __name__ == '__main__': |
|
262 | if __name__ == '__main__': | |
263 | test_magic() |
|
263 | test_magic() | |
264 | test_help() |
|
264 | test_help() | |
265 | test_execution() |
|
265 | test_execution() | |
266 | test_multiline() |
|
266 | test_multiline() | |
267 | test_capture() |
|
267 | test_capture() | |
268 | test_completion_simple() |
|
268 | test_completion_simple() | |
269 | test_completion_complex() |
|
269 | test_completion_complex() |
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