Imported Upstream version 1.2.0.d20091224upstream/1.2.0.d20091224

1 files changed, 663 insertions, 0 deletions

diff --git a/src/engine/SCons/Variables/VariablesTests.py b/src/engine/SCons/Variables/VariablesTests.py
new file mode 100644
index 0000000..b89404b
--- /dev/null
+++ b/src/engine/SCons/Variables/VariablesTests.py
@@ -0,0 +1,663 @@
+#
+# Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 The SCons Foundation
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be included
+# in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
+# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
+# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+
+__revision__ = "src/engine/SCons/Variables/VariablesTests.py 4577 2009/12/27 19:44:43 scons"
+
+import sys
+import unittest
+import TestSCons
+
+import SCons.Variables
+import SCons.Subst
+import SCons.Warnings
+
+
+class Environment:
+    def __init__(self):
+        self.dict = {}
+    def subst(self, x):
+        return SCons.Subst.scons_subst(x, self, gvars=self.dict)
+    def __setitem__(self, key, value):
+        self.dict[key] = value
+    def __getitem__(self, key):
+        return self.dict[key]
+    def has_key(self, key):
+        return self.dict.has_key(key)
+
+
+def check(key, value, env):
+    assert int(value) == 6 * 9, "key %s = %s" % (key, repr(value))
+    
+# Check saved option file by executing and comparing against
+# the expected dictionary
+def checkSave(file, expected):
+    gdict = {}
+    ldict = {}
+    exec open(file, 'rU').read() in gdict, ldict
+    assert expected == ldict, "%s\n...not equal to...\n%s" % (expected, ldict)
+
+class VariablesTestCase(unittest.TestCase):
+
+    def test_keys(self):
+        """Test the Variables.keys() method"""
+        opts = SCons.Variables.Variables()
+
+        opts.Add('VAR1')
+        opts.Add('VAR2',
+                 'THE answer to THE question',
+                 "42",
+                 check,
+                 lambda x: int(x) + 12)
+        keys = opts.keys()
+        assert keys == ['VAR1', 'VAR2'], keys
+
+    def test_Add(self):
+        """Test adding to a Variables object"""
+        opts = SCons.Variables.Variables()
+
+        opts.Add('VAR')
+        opts.Add('ANSWER',
+                 'THE answer to THE question',
+                 "42",
+                 check,
+                 lambda x: int(x) + 12)
+
+        o = opts.options[0]
+        assert o.key == 'VAR'
+        assert o.help == ''
+        assert o.default is None
+        assert o.validator is None
+        assert o.converter is None
+
+        o = opts.options[1]
+        assert o.key == 'ANSWER'
+        assert o.help == 'THE answer to THE question'
+        assert o.default == "42"
+        o.validator(o.key, o.converter(o.default), {})
+
+        def test_it(var, opts=opts):
+            exc_caught = None
+            try:
+                opts.Add(var)
+            except SCons.Errors.UserError:
+                exc_caught = 1
+            assert exc_caught, "did not catch UserError for '%s'" % var
+        test_it('foo/bar')
+        test_it('foo-bar')
+        test_it('foo.bar')
+
+    def test_AddVariables(self):
+        """Test adding a list of options to a Variables object"""
+        opts = SCons.Variables.Variables()
+
+        opts.AddVariables(('VAR2',),
+                        ('ANSWER2',
+                         'THE answer to THE question',
+                         "42",
+                         check,
+                         lambda x: int(x) + 12))
+
+        o = opts.options[0]
+        assert o.key == 'VAR2', o.key
+        assert o.help == '', o.help
+        assert o.default is None, o.default
+        assert o.validator is None, o.validator
+        assert o.converter is None, o.converter
+
+        o = opts.options[1]
+        assert o.key == 'ANSWER2', o.key
+        assert o.help == 'THE answer to THE question', o.help
+        assert o.default == "42", o.default
+        o.validator(o.key, o.converter(o.default), {})
+
+    def test_Update(self):
+        """Test updating an Environment"""
+
+        # Test that a default value is validated correctly.
+        test = TestSCons.TestSCons()
+        file = test.workpath('custom.py')
+        opts = SCons.Variables.Variables(file)
+        
+        opts.Add('ANSWER',
+                 'THE answer to THE question',
+                 "42",
+                 check,
+                 lambda x: int(x) + 12)
+
+        env = Environment()
+        opts.Update(env)
+        assert env['ANSWER'] == 54
+
+        env = Environment()
+        opts.Update(env, {})
+        assert env['ANSWER'] == 54
+
+        # Test that a bad value from the file is used and
+        # validation fails correctly.
+        test = TestSCons.TestSCons()
+        file = test.workpath('custom.py')
+        test.write('custom.py', 'ANSWER=54')
+        opts = SCons.Variables.Variables(file)
+        
+        opts.Add('ANSWER',
+                 'THE answer to THE question',
+                 "42",
+                 check,
+                 lambda x: int(x) + 12)
+
+        env = Environment()
+        exc_caught = None
+        try:
+            opts.Update(env)
+        except AssertionError:
+            exc_caught = 1
+        assert exc_caught, "did not catch expected assertion"
+
+        env = Environment()
+        exc_caught = None
+        try:
+            opts.Update(env, {})
+        except AssertionError:
+            exc_caught = 1
+        assert exc_caught, "did not catch expected assertion"
+
+        # Test that a good value from the file is used and validated.
+        test = TestSCons.TestSCons()
+        file = test.workpath('custom.py')
+        test.write('custom.py', 'ANSWER=42')
+        opts = SCons.Variables.Variables(file)
+        
+        opts.Add('ANSWER',
+                 'THE answer to THE question',
+                 "10",
+                 check,
+                 lambda x: int(x) + 12)
+
+        env = Environment()
+        opts.Update(env)
+        assert env['ANSWER'] == 54
+
+        env = Environment()
+        opts.Update(env, {})
+        assert env['ANSWER'] == 54
+
+        # Test that a bad value from an args dictionary passed to
+        # Update() is used and validation fails correctly.
+        test = TestSCons.TestSCons()
+        file = test.workpath('custom.py')
+        test.write('custom.py', 'ANSWER=10')
+        opts = SCons.Variables.Variables(file)
+        
+        opts.Add('ANSWER',
+                 'THE answer to THE question',
+                 "12",
+                 check,
+                 lambda x: int(x) + 12)
+
+        env = Environment()
+        exc_caught = None
+        try:
+            opts.Update(env, {'ANSWER':'54'})
+        except AssertionError:
+            exc_caught = 1
+        assert exc_caught, "did not catch expected assertion"
+
+        # Test that a good value from an args dictionary
+        # passed to Update() is used and validated.
+        test = TestSCons.TestSCons()
+        file = test.workpath('custom.py')
+        test.write('custom.py', 'ANSWER=10')
+        opts = SCons.Variables.Variables(file)
+        
+        opts.Add('ANSWER',
+                 'THE answer to THE question',
+                 "12",
+                 check,
+                 lambda x: int(x) + 12)
+
+        env = Environment()
+        opts.Update(env, {'ANSWER':'42'})
+        assert env['ANSWER'] == 54
+
+        # Test against a former bug.  If we supply a converter,
+        # but no default, the value should *not* appear in the
+        # Environment if no value is specified in the options file
+        # or args.
+        test = TestSCons.TestSCons()
+        file = test.workpath('custom.py')
+        opts = SCons.Variables.Variables(file)
+        
+        opts.Add('ANSWER',
+                 help='THE answer to THE question',
+                 converter=str)
+
+        env = Environment()
+        opts.Update(env, {})
+        assert not env.has_key('ANSWER')
+
+        # Test that a default value of None is all right.
+        test = TestSCons.TestSCons()
+        file = test.workpath('custom.py')
+        opts = SCons.Variables.Variables(file)
+
+        opts.Add('ANSWER',
+                 "This is the answer",
+                 None,
+                 check)
+
+        env = Environment()
+        opts.Update(env, {})
+        assert not env.has_key('ANSWER')
+
+    def test_args(self):
+        """Test updating an Environment with arguments overridden"""
+
+        # Test that a bad (command-line) argument is used
+        # and the validation fails correctly.
+        test = TestSCons.TestSCons()
+        file = test.workpath('custom.py')
+        test.write('custom.py', 'ANSWER=42')
+        opts = SCons.Variables.Variables(file, {'ANSWER':54})
+        
+        opts.Add('ANSWER',
+                 'THE answer to THE question',
+                 "42",
+                 check,
+                 lambda x: int(x) + 12)
+
+        env = Environment()
+        exc_caught = None
+        try:
+            opts.Update(env)
+        except AssertionError:
+            exc_caught = 1
+        assert exc_caught, "did not catch expected assertion"
+
+        # Test that a good (command-line) argument is used and validated.
+        test = TestSCons.TestSCons()
+        file = test.workpath('custom.py')
+        test.write('custom.py', 'ANSWER=54')
+        opts = SCons.Variables.Variables(file, {'ANSWER':42})
+        
+        opts.Add('ANSWER',
+                 'THE answer to THE question',
+                 "54",
+                 check,
+                 lambda x: int(x) + 12)
+
+        env = Environment()
+        opts.Update(env)
+        assert env['ANSWER'] == 54
+
+        # Test that a (command-line) argument is overridden by a dictionary
+        # supplied to Update() and the dictionary value is validated correctly.
+        test = TestSCons.TestSCons()
+        file = test.workpath('custom.py')
+        test.write('custom.py', 'ANSWER=54')
+        opts = SCons.Variables.Variables(file, {'ANSWER':54})
+        
+        opts.Add('ANSWER',
+                 'THE answer to THE question',
+                 "54",
+                 check,
+                 lambda x: int(x) + 12)
+
+        env = Environment()
+        opts.Update(env, {'ANSWER':42})
+        assert env['ANSWER'] == 54
+
+    def test_Save(self):
+        """Testing saving Variables"""
+
+        test = TestSCons.TestSCons()
+        cache_file = test.workpath('cached.options')
+        opts = SCons.Variables.Variables()
+
+        def bool_converter(val):
+            if val in [1, 'y']: val = 1
+            if val in [0, 'n']: val = 0
+            return val
+        
+        # test saving out empty file
+        opts.Add('OPT_VAL',
+                 'An option to test',
+                 21,
+                 None,
+                 None)
+        opts.Add('OPT_VAL_2',
+                 default='foo')
+        opts.Add('OPT_VAL_3',
+                 default=1)
+        opts.Add('OPT_BOOL_0',
+                 default='n',
+                 converter=bool_converter)
+        opts.Add('OPT_BOOL_1',
+                 default='y',
+                 converter=bool_converter)
+        opts.Add('OPT_BOOL_2',
+                 default=0,
+                 converter=bool_converter)
+
+        env = Environment()
+        opts.Update(env, {'OPT_VAL_3' : 2})
+        assert env['OPT_VAL'] == 21, env['OPT_VAL']
+        assert env['OPT_VAL_2'] == 'foo', env['OPT_VAL_2']
+        assert env['OPT_VAL_3'] == 2, env['OPT_VAL_3']
+        assert env['OPT_BOOL_0'] == 0, env['OPT_BOOL_0']
+        assert env['OPT_BOOL_1'] == 1, env['OPT_BOOL_1']
+        assert env['OPT_BOOL_2'] == '0', env['OPT_BOOL_2']
+
+        env['OPT_VAL_2'] = 'bar'
+        env['OPT_BOOL_0'] = 0
+        env['OPT_BOOL_1'] = 1
+        env['OPT_BOOL_2'] = 2
+
+        opts.Save(cache_file, env)
+        checkSave(cache_file, { 'OPT_VAL_2' : 'bar',
+                                'OPT_VAL_3' : 2,
+                                'OPT_BOOL_2' : 2})
+
+        # Test against some old bugs
+        class Foo:
+            def __init__(self, x):
+                self.x = x
+            def __str__(self):
+                return self.x
+            
+        test = TestSCons.TestSCons()
+        cache_file = test.workpath('cached.options')
+        opts = SCons.Variables.Variables()
+        
+        opts.Add('THIS_USED_TO_BREAK',
+                 'An option to test',
+                 "Default")
+
+        opts.Add('THIS_ALSO_BROKE',
+                 'An option to test',
+                 "Default2")
+        
+        opts.Add('THIS_SHOULD_WORK',
+                 'An option to test',
+                 Foo('bar'))
+        
+        env = Environment()
+        opts.Update(env, { 'THIS_USED_TO_BREAK' : "Single'Quotes'In'String",
+                           'THIS_ALSO_BROKE' : "\\Escape\nSequences\t",
+                           'THIS_SHOULD_WORK' : Foo('baz') })
+        opts.Save(cache_file, env)
+        checkSave(cache_file, { 'THIS_USED_TO_BREAK' : "Single'Quotes'In'String",
+                                'THIS_ALSO_BROKE' : "\\Escape\nSequences\t",
+                                'THIS_SHOULD_WORK' : 'baz' })
+
+    def test_GenerateHelpText(self):
+        """Test generating the default format help text"""
+        opts = SCons.Variables.Variables()
+
+        opts.Add('ANSWER',
+                 'THE answer to THE question',
+                 "42",
+                 check,
+                 lambda x: int(x) + 12)
+
+        opts.Add('B',
+                 'b - alpha test',
+                 "42",
+                 check,
+                 lambda x: int(x) + 12)
+
+        opts.Add('A',
+                 'a - alpha test',
+                 "42",
+                 check,
+                 lambda x: int(x) + 12)
+
+        env = Environment()
+        opts.Update(env, {})
+
+        expect = """
+ANSWER: THE answer to THE question
+    default: 42
+    actual: 54
+
+B: b - alpha test
+    default: 42
+    actual: 54
+
+A: a - alpha test
+    default: 42
+    actual: 54
+"""
+
+        text = opts.GenerateHelpText(env)
+        assert text == expect, text
+
+        expectAlpha = """
+A: a - alpha test
+    default: 42
+    actual: 54
+
+ANSWER: THE answer to THE question
+    default: 42
+    actual: 54
+
+B: b - alpha test
+    default: 42
+    actual: 54
+"""
+        text = opts.GenerateHelpText(env, sort=cmp)
+        assert text == expectAlpha, text
+
+    def test_FormatVariableHelpText(self):
+        """Test generating custom format help text"""
+        opts = SCons.Variables.Variables()
+
+        def my_format(env, opt, help, default, actual, aliases):
+            return '%s %s %s %s %s\n' % (opt, default, actual, help, aliases)
+
+        opts.FormatVariableHelpText = my_format
+
+        opts.Add('ANSWER',
+                 'THE answer to THE question',
+                 "42",
+                 check,
+                 lambda x: int(x) + 12)
+
+        opts.Add('B',
+                 'b - alpha test',
+                 "42",
+                 check,
+                 lambda x: int(x) + 12)
+
+        opts.Add('A',
+                 'a - alpha test',
+                 "42",
+                 check,
+                 lambda x: int(x) + 12)
+
+        env = Environment()
+        opts.Update(env, {})
+
+        expect = """\
+ANSWER 42 54 THE answer to THE question ['ANSWER']
+B 42 54 b - alpha test ['B']
+A 42 54 a - alpha test ['A']
+"""
+
+        text = opts.GenerateHelpText(env)
+        assert text == expect, text
+
+        expectAlpha = """\
+A 42 54 a - alpha test ['A']
+ANSWER 42 54 THE answer to THE question ['ANSWER']
+B 42 54 b - alpha test ['B']
+"""
+        text = opts.GenerateHelpText(env, sort=cmp)
+        assert text == expectAlpha, text
+        
+    def test_Aliases(self):
+        """Test option aliases"""
+        # test alias as a tuple
+        opts = SCons.Variables.Variables()
+        opts.AddVariables(
+                (('ANSWER', 'ANSWERALIAS'),
+                 'THE answer to THE question',
+                 "42"),
+                )
+        
+        env = Environment()
+        opts.Update(env, {'ANSWER' : 'answer'})
+        
+        assert env.has_key('ANSWER')
+        
+        env = Environment()
+        opts.Update(env, {'ANSWERALIAS' : 'answer'})
+        
+        assert env.has_key('ANSWER') and not env.has_key('ANSWERALIAS')
+        
+        # test alias as a list
+        opts = SCons.Variables.Variables()
+        opts.AddVariables(
+                (['ANSWER', 'ANSWERALIAS'],
+                 'THE answer to THE question',
+                 "42"),
+                )
+        
+        env = Environment()
+        opts.Update(env, {'ANSWER' : 'answer'})
+        
+        assert env.has_key('ANSWER')
+        
+        env = Environment()
+        opts.Update(env, {'ANSWERALIAS' : 'answer'})
+        
+        assert env.has_key('ANSWER') and not env.has_key('ANSWERALIAS')
+
+
+
+class UnknownVariablesTestCase(unittest.TestCase):
+
+    def test_unknown(self):
+        """Test the UnknownVariables() method"""
+        opts = SCons.Variables.Variables()
+        
+        opts.Add('ANSWER',
+                 'THE answer to THE question',
+                 "42")
+
+        args = {
+            'ANSWER'    : 'answer',
+            'UNKNOWN'   : 'unknown',
+        }
+
+        env = Environment()
+        opts.Update(env, args)
+
+        r = opts.UnknownVariables()
+        assert r == {'UNKNOWN' : 'unknown'}, r
+        assert env['ANSWER'] == 'answer', env['ANSWER']
+        
+    def test_AddOptionUpdatesUnknown(self):
+        """Test updating of the 'unknown' dict"""
+        opts = SCons.Variables.Variables()
+        
+        opts.Add('A',
+                 'A test variable',
+                 "1")
+        
+        args = {
+            'A'             : 'a',
+            'ADDEDLATER'    : 'notaddedyet',
+        }
+        
+        env = Environment()
+        opts.Update(env,args)
+        
+        r = opts.UnknownVariables()
+        assert r == {'ADDEDLATER' : 'notaddedyet'}, r
+        assert env['A'] == 'a', env['A']
+        
+        opts.Add('ADDEDLATER',
+                 'An option not present initially',
+                 "1")
+                 
+        args = {
+            'A'             : 'a',
+            'ADDEDLATER'    : 'added',
+        }
+        
+        opts.Update(env, args)
+        
+        r = opts.UnknownVariables()
+        assert len(r) == 0, r
+        assert env['ADDEDLATER'] == 'added', env['ADDEDLATER']
+
+    def test_AddOptionWithAliasUpdatesUnknown(self):
+        """Test updating of the 'unknown' dict (with aliases)"""
+        opts = SCons.Variables.Variables()
+        
+        opts.Add('A',
+                 'A test variable',
+                 "1")
+        
+        args = {
+            'A'                 : 'a',
+            'ADDEDLATERALIAS'   : 'notaddedyet',
+        }
+        
+        env = Environment()
+        opts.Update(env,args)
+        
+        r = opts.UnknownVariables()
+        assert r == {'ADDEDLATERALIAS' : 'notaddedyet'}, r
+        assert env['A'] == 'a', env['A']
+        
+        opts.AddVariables(
+            (('ADDEDLATER', 'ADDEDLATERALIAS'),
+             'An option not present initially',
+             "1"),
+            )
+        
+        args['ADDEDLATERALIAS'] = 'added'
+        
+        opts.Update(env, args)
+        
+        r = opts.UnknownVariables()
+        assert len(r) == 0, r
+        assert env['ADDEDLATER'] == 'added', env['ADDEDLATER']
+
+
+if __name__ == "__main__":
+    suite = unittest.TestSuite()
+    tclasses = [ VariablesTestCase,
+                 UnknownVariablesTestCase ]
+    for tclass in tclasses:
+        names = unittest.getTestCaseNames(tclass, 'test_')
+        suite.addTests(map(tclass, names))
+    if not unittest.TextTestRunner().run(suite).wasSuccessful():
+        sys.exit(1)
+
+# Local Variables:
+# tab-width:4
+# indent-tabs-mode:nil
+# End:
+# vim: set expandtab tabstop=4 shiftwidth=4: