Merge: #27185: move test_pep292 into test_string.

Lib/test/test_pep292.py

-# Copyright (C) 2004 Python Software Foundation
-# Author: barry@python.org (Barry Warsaw)
-# License: http://www.opensource.org/licenses/PythonSoftFoundation.php
-
-import unittest
-from string import Template
-
-
-class Bag:
-    pass
-
-class Mapping:
-    def __getitem__(self, name):
-        obj = self
-        for part in name.split('.'):
-            try:
-                obj = getattr(obj, part)
-            except AttributeError:
-                raise KeyError(name)
-        return obj
-
-
-class TestTemplate(unittest.TestCase):
-    def test_regular_templates(self):
-        s = Template('$who likes to eat a bag of $what worth $$100')
-        self.assertEqual(s.substitute(dict(who='tim', what='ham')),
-                         'tim likes to eat a bag of ham worth $100')
-        self.assertRaises(KeyError, s.substitute, dict(who='tim'))
-        self.assertRaises(TypeError, Template.substitute)
-
-    def test_regular_templates_with_braces(self):
-        s = Template('$who likes ${what} for ${meal}')
-        d = dict(who='tim', what='ham', meal='dinner')
-        self.assertEqual(s.substitute(d), 'tim likes ham for dinner')
-        self.assertRaises(KeyError, s.substitute,
-                          dict(who='tim', what='ham'))
-
-    def test_escapes(self):
-        eq = self.assertEqual
-        s = Template('$who likes to eat a bag of $$what worth $$100')
-        eq(s.substitute(dict(who='tim', what='ham')),
-           'tim likes to eat a bag of $what worth $100')
-        s = Template('$who likes $$')
-        eq(s.substitute(dict(who='tim', what='ham')), 'tim likes $')
-
-    def test_percents(self):
-        eq = self.assertEqual
-        s = Template('%(foo)s $foo ${foo}')
-        d = dict(foo='baz')
-        eq(s.substitute(d), '%(foo)s baz baz')
-        eq(s.safe_substitute(d), '%(foo)s baz baz')
-
-    def test_stringification(self):
-        eq = self.assertEqual
-        s = Template('tim has eaten $count bags of ham today')
-        d = dict(count=7)
-        eq(s.substitute(d), 'tim has eaten 7 bags of ham today')
-        eq(s.safe_substitute(d), 'tim has eaten 7 bags of ham today')
-        s = Template('tim has eaten ${count} bags of ham today')
-        eq(s.substitute(d), 'tim has eaten 7 bags of ham today')
-
-    def test_tupleargs(self):
-        eq = self.assertEqual
-        s = Template('$who ate ${meal}')
-        d = dict(who=('tim', 'fred'), meal=('ham', 'kung pao'))
-        eq(s.substitute(d), "('tim', 'fred') ate ('ham', 'kung pao')")
-        eq(s.safe_substitute(d), "('tim', 'fred') ate ('ham', 'kung pao')")
-
-    def test_SafeTemplate(self):
-        eq = self.assertEqual
-        s = Template('$who likes ${what} for ${meal}')
-        eq(s.safe_substitute(dict(who='tim')), 'tim likes ${what} for ${meal}')
-        eq(s.safe_substitute(dict(what='ham')), '$who likes ham for ${meal}')
-        eq(s.safe_substitute(dict(what='ham', meal='dinner')),
-           '$who likes ham for dinner')
-        eq(s.safe_substitute(dict(who='tim', what='ham')),
-           'tim likes ham for ${meal}')
-        eq(s.safe_substitute(dict(who='tim', what='ham', meal='dinner')),
-           'tim likes ham for dinner')
-
-    def test_invalid_placeholders(self):
-        raises = self.assertRaises
-        s = Template('$who likes $')
-        raises(ValueError, s.substitute, dict(who='tim'))
-        s = Template('$who likes ${what)')
-        raises(ValueError, s.substitute, dict(who='tim'))
-        s = Template('$who likes $100')
-        raises(ValueError, s.substitute, dict(who='tim'))
-
-    def test_idpattern_override(self):
-        class PathPattern(Template):
-            idpattern = r'[_a-z][._a-z0-9]*'
-        m = Mapping()
-        m.bag = Bag()
-        m.bag.foo = Bag()
-        m.bag.foo.who = 'tim'
-        m.bag.what = 'ham'
-        s = PathPattern('$bag.foo.who likes to eat a bag of $bag.what')
-        self.assertEqual(s.substitute(m), 'tim likes to eat a bag of ham')
-
-    def test_pattern_override(self):
-        class MyPattern(Template):
-            pattern = r"""
-            (?P<escaped>@{2})                   |
-            @(?P<named>[_a-z][._a-z0-9]*)       |
-            @{(?P<braced>[_a-z][._a-z0-9]*)}    |
-            (?P<invalid>@)
-            """
-        m = Mapping()
-        m.bag = Bag()
-        m.bag.foo = Bag()
-        m.bag.foo.who = 'tim'
-        m.bag.what = 'ham'
-        s = MyPattern('@bag.foo.who likes to eat a bag of @bag.what')
-        self.assertEqual(s.substitute(m), 'tim likes to eat a bag of ham')
-
-        class BadPattern(Template):
-            pattern = r"""
-            (?P<badname>.*)                     |
-            (?P<escaped>@{2})                   |
-            @(?P<named>[_a-z][._a-z0-9]*)       |
-            @{(?P<braced>[_a-z][._a-z0-9]*)}    |
-            (?P<invalid>@)                      |
-            """
-        s = BadPattern('@bag.foo.who likes to eat a bag of @bag.what')
-        self.assertRaises(ValueError, s.substitute, {})
-        self.assertRaises(ValueError, s.safe_substitute, {})
-
-    def test_braced_override(self):
-        class MyTemplate(Template):
-            pattern = r"""
-            \$(?:
-              (?P<escaped>$)                     |
-              (?P<named>[_a-z][_a-z0-9]*)        |
-              @@(?P<braced>[_a-z][_a-z0-9]*)@@   |
-              (?P<invalid>)                      |
-           )
-           """
-
-        tmpl = 'PyCon in $@@location@@'
-        t = MyTemplate(tmpl)
-        self.assertRaises(KeyError, t.substitute, {})
-        val = t.substitute({'location': 'Cleveland'})
-        self.assertEqual(val, 'PyCon in Cleveland')
-
-    def test_braced_override_safe(self):
-        class MyTemplate(Template):
-            pattern = r"""
-            \$(?:
-              (?P<escaped>$)                     |
-              (?P<named>[_a-z][_a-z0-9]*)        |
-              @@(?P<braced>[_a-z][_a-z0-9]*)@@   |
-              (?P<invalid>)                      |
-           )
-           """
-
-        tmpl = 'PyCon in $@@location@@'
-        t = MyTemplate(tmpl)
-        self.assertEqual(t.safe_substitute(), tmpl)
-        val = t.safe_substitute({'location': 'Cleveland'})
-        self.assertEqual(val, 'PyCon in Cleveland')
-
-    def test_invalid_with_no_lines(self):
-        # The error formatting for invalid templates
-        # has a special case for no data that the default
-        # pattern can't trigger (always has at least '$')
-        # So we craft a pattern that is always invalid
-        # with no leading data.
-        class MyTemplate(Template):
-            pattern = r"""
-              (?P<invalid>) |
-              unreachable(
-                (?P<named>)   |
-                (?P<braced>)  |
-                (?P<escaped>)
-              )
-            """
-        s = MyTemplate('')
-        with self.assertRaises(ValueError) as err:
-            s.substitute({})
-        self.assertIn('line 1, col 1', str(err.exception))
-
-    def test_unicode_values(self):
-        s = Template('$who likes $what')
-        d = dict(who='t\xffm', what='f\xfe\fed')
-        self.assertEqual(s.substitute(d), 't\xffm likes f\xfe\x0ced')
-
-    def test_keyword_arguments(self):
-        eq = self.assertEqual
-        s = Template('$who likes $what')
-        eq(s.substitute(who='tim', what='ham'), 'tim likes ham')
-        eq(s.substitute(dict(who='tim'), what='ham'), 'tim likes ham')
-        eq(s.substitute(dict(who='fred', what='kung pao'),
-                        who='tim', what='ham'),
-           'tim likes ham')
-        s = Template('the mapping is $mapping')
-        eq(s.substitute(dict(foo='none'), mapping='bozo'),
-           'the mapping is bozo')
-        eq(s.substitute(dict(mapping='one'), mapping='two'),
-           'the mapping is two')
-
-        s = Template('the self is $self')
-        eq(s.substitute(self='bozo'), 'the self is bozo')
-
-    def test_keyword_arguments_safe(self):
-        eq = self.assertEqual
-        raises = self.assertRaises
-        s = Template('$who likes $what')
-        eq(s.safe_substitute(who='tim', what='ham'), 'tim likes ham')
-        eq(s.safe_substitute(dict(who='tim'), what='ham'), 'tim likes ham')
-        eq(s.safe_substitute(dict(who='fred', what='kung pao'),
-                        who='tim', what='ham'),
-           'tim likes ham')
-        s = Template('the mapping is $mapping')
-        eq(s.safe_substitute(dict(foo='none'), mapping='bozo'),
-           'the mapping is bozo')
-        eq(s.safe_substitute(dict(mapping='one'), mapping='two'),
-           'the mapping is two')
-        d = dict(mapping='one')
-        raises(TypeError, s.substitute, d, {})
-        raises(TypeError, s.safe_substitute, d, {})
-
-        s = Template('the self is $self')
-        eq(s.safe_substitute(self='bozo'), 'the self is bozo')
-
-    def test_delimiter_override(self):
-        eq = self.assertEqual
-        raises = self.assertRaises
-        class AmpersandTemplate(Template):
-            delimiter = '&'
-        s = AmpersandTemplate('this &gift is for &{who} &&')
-        eq(s.substitute(gift='bud', who='you'), 'this bud is for you &')
-        raises(KeyError, s.substitute)
-        eq(s.safe_substitute(gift='bud', who='you'), 'this bud is for you &')
-        eq(s.safe_substitute(), 'this &gift is for &{who} &')
-        s = AmpersandTemplate('this &gift is for &{who} &')
-        raises(ValueError, s.substitute, dict(gift='bud', who='you'))
-        eq(s.safe_substitute(), 'this &gift is for &{who} &')
-
-        class PieDelims(Template):
-            delimiter = '@'
-        s = PieDelims('@who likes to eat a bag of @{what} worth $100')
-        self.assertEqual(s.substitute(dict(who='tim', what='ham')),
-                         'tim likes to eat a bag of ham worth $100')
-
-
-if __name__ == '__main__':
-    unittest.main()

Lib/test/test_string.py

@@ -187,5 +187,245 @@ class ModuleTest(unittest.TestCase):
         self.assertIn("recursion", str(err.exception))
 
 
+# Template tests (formerly housed in test_pep292.py)
+
+class Bag:
+    pass
+
+class Mapping:
+    def __getitem__(self, name):
+        obj = self
+        for part in name.split('.'):
+            try:
+                obj = getattr(obj, part)
+            except AttributeError:
+                raise KeyError(name)
+        return obj
+
+
+class TestTemplate(unittest.TestCase):
+    def test_regular_templates(self):
+        s = string.Template('$who likes to eat a bag of $what worth $$100')
+        self.assertEqual(s.substitute(dict(who='tim', what='ham')),
+                         'tim likes to eat a bag of ham worth $100')
+        self.assertRaises(KeyError, s.substitute, dict(who='tim'))
+        self.assertRaises(TypeError, string.Template.substitute)
+
+    def test_regular_templates_with_braces(self):
+        s = string.Template('$who likes ${what} for ${meal}')
+        d = dict(who='tim', what='ham', meal='dinner')
+        self.assertEqual(s.substitute(d), 'tim likes ham for dinner')
+        self.assertRaises(KeyError, s.substitute,
+                          dict(who='tim', what='ham'))
+
+    def test_escapes(self):
+        eq = self.assertEqual
+        s = string.Template('$who likes to eat a bag of $$what worth $$100')
+        eq(s.substitute(dict(who='tim', what='ham')),
+           'tim likes to eat a bag of $what worth $100')
+        s = string.Template('$who likes $$')
+        eq(s.substitute(dict(who='tim', what='ham')), 'tim likes $')
+
+    def test_percents(self):
+        eq = self.assertEqual
+        s = string.Template('%(foo)s $foo ${foo}')
+        d = dict(foo='baz')
+        eq(s.substitute(d), '%(foo)s baz baz')
+        eq(s.safe_substitute(d), '%(foo)s baz baz')
+
+    def test_stringification(self):
+        eq = self.assertEqual
+        s = string.Template('tim has eaten $count bags of ham today')
+        d = dict(count=7)
+        eq(s.substitute(d), 'tim has eaten 7 bags of ham today')
+        eq(s.safe_substitute(d), 'tim has eaten 7 bags of ham today')
+        s = string.Template('tim has eaten ${count} bags of ham today')
+        eq(s.substitute(d), 'tim has eaten 7 bags of ham today')
+
+    def test_tupleargs(self):
+        eq = self.assertEqual
+        s = string.Template('$who ate ${meal}')
+        d = dict(who=('tim', 'fred'), meal=('ham', 'kung pao'))
+        eq(s.substitute(d), "('tim', 'fred') ate ('ham', 'kung pao')")
+        eq(s.safe_substitute(d), "('tim', 'fred') ate ('ham', 'kung pao')")
+
+    def test_SafeTemplate(self):
+        eq = self.assertEqual
+        s = string.Template('$who likes ${what} for ${meal}')
+        eq(s.safe_substitute(dict(who='tim')), 'tim likes ${what} for ${meal}')
+        eq(s.safe_substitute(dict(what='ham')), '$who likes ham for ${meal}')
+        eq(s.safe_substitute(dict(what='ham', meal='dinner')),
+           '$who likes ham for dinner')
+        eq(s.safe_substitute(dict(who='tim', what='ham')),
+           'tim likes ham for ${meal}')
+        eq(s.safe_substitute(dict(who='tim', what='ham', meal='dinner')),
+           'tim likes ham for dinner')
+
+    def test_invalid_placeholders(self):
+        raises = self.assertRaises
+        s = string.Template('$who likes $')
+        raises(ValueError, s.substitute, dict(who='tim'))
+        s = string.Template('$who likes ${what)')
+        raises(ValueError, s.substitute, dict(who='tim'))
+        s = string.Template('$who likes $100')
+        raises(ValueError, s.substitute, dict(who='tim'))
+
+    def test_idpattern_override(self):
+        class PathPattern(string.Template):
+            idpattern = r'[_a-z][._a-z0-9]*'
+        m = Mapping()
+        m.bag = Bag()
+        m.bag.foo = Bag()
+        m.bag.foo.who = 'tim'
+        m.bag.what = 'ham'
+        s = PathPattern('$bag.foo.who likes to eat a bag of $bag.what')
+        self.assertEqual(s.substitute(m), 'tim likes to eat a bag of ham')
+
+    def test_pattern_override(self):
+        class MyPattern(string.Template):
+            pattern = r"""
+            (?P<escaped>@{2})                   |
+            @(?P<named>[_a-z][._a-z0-9]*)       |
+            @{(?P<braced>[_a-z][._a-z0-9]*)}    |
+            (?P<invalid>@)
+            """
+        m = Mapping()
+        m.bag = Bag()
+        m.bag.foo = Bag()
+        m.bag.foo.who = 'tim'
+        m.bag.what = 'ham'
+        s = MyPattern('@bag.foo.who likes to eat a bag of @bag.what')
+        self.assertEqual(s.substitute(m), 'tim likes to eat a bag of ham')
+
+        class BadPattern(string.Template):
+            pattern = r"""
+            (?P<badname>.*)                     |
+            (?P<escaped>@{2})                   |
+            @(?P<named>[_a-z][._a-z0-9]*)       |
+            @{(?P<braced>[_a-z][._a-z0-9]*)}    |
+            (?P<invalid>@)                      |
+            """
+        s = BadPattern('@bag.foo.who likes to eat a bag of @bag.what')
+        self.assertRaises(ValueError, s.substitute, {})
+        self.assertRaises(ValueError, s.safe_substitute, {})
+
+    def test_braced_override(self):
+        class MyTemplate(string.Template):
+            pattern = r"""
+            \$(?:
+              (?P<escaped>$)                     |
+              (?P<named>[_a-z][_a-z0-9]*)        |
+              @@(?P<braced>[_a-z][_a-z0-9]*)@@   |
+              (?P<invalid>)                      |
+           )
+           """
+
+        tmpl = 'PyCon in $@@location@@'
+        t = MyTemplate(tmpl)
+        self.assertRaises(KeyError, t.substitute, {})
+        val = t.substitute({'location': 'Cleveland'})
+        self.assertEqual(val, 'PyCon in Cleveland')
+
+    def test_braced_override_safe(self):
+        class MyTemplate(string.Template):
+            pattern = r"""
+            \$(?:
+              (?P<escaped>$)                     |
+              (?P<named>[_a-z][_a-z0-9]*)        |
+              @@(?P<braced>[_a-z][_a-z0-9]*)@@   |
+              (?P<invalid>)                      |
+           )
+           """
+
+        tmpl = 'PyCon in $@@location@@'
+        t = MyTemplate(tmpl)
+        self.assertEqual(t.safe_substitute(), tmpl)
+        val = t.safe_substitute({'location': 'Cleveland'})
+        self.assertEqual(val, 'PyCon in Cleveland')
+
+    def test_invalid_with_no_lines(self):
+        # The error formatting for invalid templates
+        # has a special case for no data that the default
+        # pattern can't trigger (always has at least '$')
+        # So we craft a pattern that is always invalid
+        # with no leading data.
+        class MyTemplate(string.Template):
+            pattern = r"""
+              (?P<invalid>) |
+              unreachable(
+                (?P<named>)   |
+                (?P<braced>)  |
+                (?P<escaped>)
+              )
+            """
+        s = MyTemplate('')
+        with self.assertRaises(ValueError) as err:
+            s.substitute({})
+        self.assertIn('line 1, col 1', str(err.exception))
+
+    def test_unicode_values(self):
+        s = string.Template('$who likes $what')
+        d = dict(who='t\xffm', what='f\xfe\fed')
+        self.assertEqual(s.substitute(d), 't\xffm likes f\xfe\x0ced')
+
+    def test_keyword_arguments(self):
+        eq = self.assertEqual
+        s = string.Template('$who likes $what')
+        eq(s.substitute(who='tim', what='ham'), 'tim likes ham')
+        eq(s.substitute(dict(who='tim'), what='ham'), 'tim likes ham')
+        eq(s.substitute(dict(who='fred', what='kung pao'),
+                        who='tim', what='ham'),
+           'tim likes ham')
+        s = string.Template('the mapping is $mapping')
+        eq(s.substitute(dict(foo='none'), mapping='bozo'),
+           'the mapping is bozo')
+        eq(s.substitute(dict(mapping='one'), mapping='two'),
+           'the mapping is two')
+
+        s = string.Template('the self is $self')
+        eq(s.substitute(self='bozo'), 'the self is bozo')
+
+    def test_keyword_arguments_safe(self):
+        eq = self.assertEqual
+        raises = self.assertRaises
+        s = string.Template('$who likes $what')
+        eq(s.safe_substitute(who='tim', what='ham'), 'tim likes ham')
+        eq(s.safe_substitute(dict(who='tim'), what='ham'), 'tim likes ham')
+        eq(s.safe_substitute(dict(who='fred', what='kung pao'),
+                        who='tim', what='ham'),
+           'tim likes ham')
+        s = string.Template('the mapping is $mapping')
+        eq(s.safe_substitute(dict(foo='none'), mapping='bozo'),
+           'the mapping is bozo')
+        eq(s.safe_substitute(dict(mapping='one'), mapping='two'),
+           'the mapping is two')
+        d = dict(mapping='one')
+        raises(TypeError, s.substitute, d, {})
+        raises(TypeError, s.safe_substitute, d, {})
+
+        s = string.Template('the self is $self')
+        eq(s.safe_substitute(self='bozo'), 'the self is bozo')
+
+    def test_delimiter_override(self):
+        eq = self.assertEqual
+        raises = self.assertRaises
+        class AmpersandTemplate(string.Template):
+            delimiter = '&'
+        s = AmpersandTemplate('this &gift is for &{who} &&')
+        eq(s.substitute(gift='bud', who='you'), 'this bud is for you &')
+        raises(KeyError, s.substitute)
+        eq(s.safe_substitute(gift='bud', who='you'), 'this bud is for you &')
+        eq(s.safe_substitute(), 'this &gift is for &{who} &')
+        s = AmpersandTemplate('this &gift is for &{who} &')
+        raises(ValueError, s.substitute, dict(gift='bud', who='you'))
+        eq(s.safe_substitute(), 'this &gift is for &{who} &')
+
+        class PieDelims(string.Template):
+            delimiter = '@'
+        s = PieDelims('@who likes to eat a bag of @{what} worth $100')
+        self.assertEqual(s.substitute(dict(who='tim', what='ham')),
+                         'tim likes to eat a bag of ham worth $100')
+
+
 if __name__ == "__main__":
     unittest.main()

Misc/ACKS

@@ -176,6 +176,7 @@ Monty Brandenberg
 Georg Brandl
 Christopher Brannon
 Terrence Brannon
+Erin Braswell
 Sven Brauch
 Germán M. Bravo
 Erik Bray