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. 4 5 import sys 6 import traceback 7 8 import module as mojom 9 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. 13 # 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 17 # 18 # def Foo(): 19 # errors = 0 20 # errors += EXPECT_EQ('test', test()) 21 # ... 22 # return errors 23 # 24 # RunTest(foo) 25 26 def FieldsAreEqual(field1, field2): 27 if field1 == field2: 28 return True 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 33 34 35 def KindsAreEqual(kind1, kind2): 36 if kind1 == kind2: 37 return True 38 if kind1.__class__ != kind2.__class__ or kind1.spec != kind2.spec: 39 return False 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): 46 return False 47 for i in range(len(kind1.fields)): 48 if not FieldsAreEqual(kind1.fields[i], kind2.fields[i]): 49 return False 50 return True 51 if kind1.__class__ == mojom.Array: 52 return KindsAreEqual(kind1.kind, kind2.kind) 53 print 'Unknown Kind class: ', kind1.__class__.__name__ 54 return False 55 56 57 def ParametersAreEqual(parameter1, parameter2): 58 if parameter1 == parameter2: 59 return True 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) 64 65 66 def MethodsAreEqual(method1, method2): 67 if method1 == method2: 68 return True 69 if method1.name != method2.name or \ 70 method1.ordinal != method2.ordinal or \ 71 len(method1.parameters) != len(method2.parameters): 72 return False 73 for i in range(len(method1.parameters)): 74 if not ParametersAreEqual(method1.parameters[i], method2.parameters[i]): 75 return False 76 return True 77 78 79 def InterfacesAreEqual(interface1, interface2): 80 if interface1 == interface2: 81 return True 82 if interface1.name != interface2.name or \ 83 len(interface1.methods) != len(interface2.methods): 84 return False 85 for i in range(len(interface1.methods)): 86 if not MethodsAreEqual(interface1.methods[i], interface2.methods[i]): 87 return False 88 return True 89 90 91 def ModulesAreEqual(module1, module2): 92 if module1 == module2: 93 return True 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): 98 return False 99 for i in range(len(module1.structs)): 100 if not KindsAreEqual(module1.structs[i], module2.structs[i]): 101 return False 102 for i in range(len(module1.interfaces)): 103 if not InterfacesAreEqual(module1.interfaces[i], module2.interfaces[i]): 104 return False 105 return True 106 107 108 # 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) 114 115 interface = module.AddInterface('Server') 116 method = interface.AddMethod('Foo', 42) 117 method.AddParameter('foo', mojom.INT32) 118 method.AddParameter('bar', mojom.Array(struct)) 119 120 return module 121 122 123 # Tests if |module| is as built by BuildTestModule(). Returns the number of 124 # errors 125 def TestTestModule(module): 126 errors = 0 127 128 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) 138 139 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) 148 errors += EXPECT_EQ( 149 mojom.Array, 150 module.interfaces[0].methods[0].parameters[1].kind.__class__) 151 errors += EXPECT_EQ( 152 module.structs[0], 153 module.interfaces[0].methods[0].parameters[1].kind.kind) 154 return errors 155 156 157 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)) 161 print "Traceback:" 162 for line in traceback.format_list(stack[:len(stack)-2]): 163 sys.stderr.write(line) 164 165 166 def EXPECT_EQ(a, b): 167 if a != b: 168 PrintFailure("%s != %s" % (a, b)) 169 return 1 170 return 0 171 172 173 def EXPECT_TRUE(a): 174 if not a: 175 PrintFailure('Expecting True') 176 return 1 177 return 0 178 179 180 def RunTest(fn): 181 sys.stdout.write('Running %s...' % fn.__name__) 182 try: 183 errors = fn() 184 except: 185 traceback.print_exc(sys.stderr) 186 errors = 1 187 if errors == 0: 188 sys.stdout.write('OK\n') 189 elif errors == 1: 190 sys.stdout.write('1 ERROR\n') 191 else: 192 sys.stdout.write('%d ERRORS\n' % errors) 193 return errors 194
