1 # Copyright 2013 The Chromium Authors. All rights reserved.
2 # Use of this source code is governed by a BSD-style license that can be
3 # found in the LICENSE file.
10 # Support for writing mojom test cases.
11 # RunTest(fn) will execute fn, catching any exceptions. fn should return
12 # the number of errors that are encountered.
14 # EXPECT_EQ(a, b) and EXPECT_TRUE(b) will print error information if the
15 # expectations are not true and return a non zero value. This allows test cases
16 # to be written like this
20 # errors += EXPECT_EQ('test', test())
26 def FieldsAreEqual(field1, field2):
29 return field1.name == field2.name and \
30 KindsAreEqual(field1.kind, field2.kind) and \
31 field1.ordinal == field2.ordinal and \
32 field1.default == field2.default
35 def KindsAreEqual(kind1, kind2):
38 if kind1.__class__ != kind2.__class__ or kind1.spec != kind2.spec:
40 if kind1.__class__ == mojom.Kind:
41 return kind1.spec == kind2.spec
42 if kind1.__class__ == mojom.Struct:
43 if kind1.name != kind2.name or \
44 kind1.spec != kind2.spec or \
45 len(kind1.fields) != len(kind2.fields):
47 for i in range(len(kind1.fields)):
48 if not FieldsAreEqual(kind1.fields[i], kind2.fields[i]):
51 if kind1.__class__ == mojom.Array:
52 return KindsAreEqual(kind1.kind, kind2.kind)
53 print 'Unknown Kind class: ', kind1.__class__.__name__
57 def ParametersAreEqual(parameter1, parameter2):
58 if parameter1 == parameter2:
60 return parameter1.name == parameter2.name and \
61 parameter1.ordinal == parameter2.ordinal and \
62 parameter1.default == parameter2.default and \
63 KindsAreEqual(parameter1.kind, parameter2.kind)
66 def MethodsAreEqual(method1, method2):
67 if method1 == method2:
69 if method1.name != method2.name or \
70 method1.ordinal != method2.ordinal or \
71 len(method1.parameters) != len(method2.parameters):
73 for i in range(len(method1.parameters)):
74 if not ParametersAreEqual(method1.parameters[i], method2.parameters[i]):
79 def InterfacesAreEqual(interface1, interface2):
80 if interface1 == interface2:
82 if interface1.name != interface2.name or \
83 len(interface1.methods) != len(interface2.methods):
85 for i in range(len(interface1.methods)):
86 if not MethodsAreEqual(interface1.methods[i], interface2.methods[i]):
91 def ModulesAreEqual(module1, module2):
92 if module1 == module2:
94 if module1.name != module2.name or \
95 module1.namespace != module2.namespace or \
96 len(module1.structs) != len(module2.structs) or \
97 len(module1.interfaces) != len(module2.interfaces):
99 for i in range(len(module1.structs)):
100 if not KindsAreEqual(module1.structs[i], module2.structs[i]):
102 for i in range(len(module1.interfaces)):
103 if not InterfacesAreEqual(module1.interfaces[i], module2.interfaces[i]):
108 # Builds and returns a Module suitable for testing/
109 def BuildTestModule():
110 module = mojom.Module('test', 'testspace')
111 struct = module.AddStruct('teststruct')
112 struct.AddField('testfield1', mojom.INT32)
113 struct.AddField('testfield2', mojom.Array(mojom.INT32), 42)
115 interface = module.AddInterface('Server')
116 method = interface.AddMethod('Foo', 42)
117 method.AddParameter('foo', mojom.INT32)
118 method.AddParameter('bar', mojom.Array(struct))
123 # Tests if |module| is as built by BuildTestModule(). Returns the number of
125 def TestTestModule(module):
128 errors += EXPECT_EQ('test', module.name)
129 errors += EXPECT_EQ('testspace', module.namespace)
130 errors += EXPECT_EQ(1, len(module.structs))
131 errors += EXPECT_EQ('teststruct', module.structs[0].name)
132 errors += EXPECT_EQ(2, len(module.structs[0].fields))
133 errors += EXPECT_EQ('testfield1', module.structs[0].fields[0].name)
134 errors += EXPECT_EQ(mojom.INT32, module.structs[0].fields[0].kind)
135 errors += EXPECT_EQ('testfield2', module.structs[0].fields[1].name)
136 errors += EXPECT_EQ(mojom.Array, module.structs[0].fields[1].kind.__class__)
137 errors += EXPECT_EQ(mojom.INT32, module.structs[0].fields[1].kind.kind)
139 errors += EXPECT_EQ(1, len(module.interfaces))
140 errors += EXPECT_EQ('Server', module.interfaces[0].name)
141 errors += EXPECT_EQ(1, len(module.interfaces[0].methods))
142 errors += EXPECT_EQ('Foo', module.interfaces[0].methods[0].name)
143 errors += EXPECT_EQ(2, len(module.interfaces[0].methods[0].parameters))
144 errors += EXPECT_EQ('foo', module.interfaces[0].methods[0].parameters[0].name)
145 errors += EXPECT_EQ(mojom.INT32,
146 module.interfaces[0].methods[0].parameters[0].kind)
147 errors += EXPECT_EQ('bar', module.interfaces[0].methods[0].parameters[1].name)
150 module.interfaces[0].methods[0].parameters[1].kind.__class__)
153 module.interfaces[0].methods[0].parameters[1].kind.kind)
157 def PrintFailure(string):
158 stack = traceback.extract_stack()
159 frame = stack[len(stack)-3]
160 sys.stderr.write("ERROR at %s:%d, %s\n" % (frame[0], frame[1], string))
162 for line in traceback.format_list(stack[:len(stack)-2]):
163 sys.stderr.write(line)
168 PrintFailure("%s != %s" % (a, b))
175 PrintFailure('Expecting True')
181 sys.stdout.write('Running %s...' % fn.__name__)
185 traceback.print_exc(sys.stderr)
188 sys.stdout.write('OK\n')
190 sys.stdout.write('1 ERROR\n')
192 sys.stdout.write('%d ERRORS\n' % errors)