Initial commit

test/cxxtest/sample/mock/Dice.cpp

@@ -0,0 +1,12 @@
+#include <T/stdlib.h>
+#include "Dice.h"
+
+Dice::Dice()
+{
+    T::srand( T::time( 0 ) );
+}
+
+unsigned Dice::roll()
+{
+    return (T::rand() % 6) + 1;
+}

test/cxxtest/sample/mock/Dice.h

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+#ifndef __DICE_H
+#define __DICE_H
+
+class Dice
+{
+public:
+    Dice();
+
+    unsigned roll();
+};
+
+#endif // __DICE_H

test/cxxtest/sample/mock/Makefile

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+all: roll run
+
+clean:
+	rm -f *~ *.o roll test test.cpp
+
+CXXTEST = ../..
+CCFLAGS = -I. -I$(CXXTEST)
+
+roll: roll.o Dice.o real_stdlib.o
+	g++ -o $@ $^
+
+run: test
+	./test
+
+test: test.o Dice.o mock_stdlib.o
+	g++ -o $@ $^
+
+.cpp.o:
+	g++ -c -o $@ $(CCFLAGS) $<
+
+test.cpp: TestDice.h
+	$(CXXTEST)/cxxtestgen.pl -o $@ --error-printer $<

test/cxxtest/sample/mock/MockStdlib.h

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+#include <T/stdlib.h>
+
+class MockStdlib :
+    public T::Base_srand,
+    public T::Base_rand,
+    public T::Base_time
+{
+public:
+    unsigned lastSeed;
+
+    void srand( unsigned seed )
+    {
+        lastSeed = seed;
+    }
+
+    int nextRand;
+
+    int rand()
+    {
+        return nextRand;
+    }
+
+    time_t nextTime;
+
+    time_t time( time_t *t )
+    {
+        if ( t )
+            *t = nextTime;
+        return nextTime;
+    }
+};

test/cxxtest/sample/mock/T/stdlib.h

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+#ifndef __T__STDLIB_H
+#define __T__STDLIB_H
+
+#include <stdlib.h>
+#include <time.h>
+
+#include <cxxtest/Mock.h>
+
+CXXTEST_MOCK_VOID_GLOBAL( srand, ( unsigned seed ), ( seed ) );
+CXXTEST_MOCK_GLOBAL( int, rand, ( void ), () );
+CXXTEST_MOCK_GLOBAL( time_t, time, ( time_t *t ), ( t ) );
+
+#endif // __T__STDLIB_H

test/cxxtest/sample/mock/TestDice.h

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+#include <cxxtest/TestSuite.h>
+#include "Dice.h"
+#include "MockStdlib.h"
+
+class TestDice : public CxxTest::TestSuite
+{
+public:
+    MockStdlib *stdlib;
+
+    void setUp()
+    {
+        TS_ASSERT( stdlib = new MockStdlib );
+    }
+
+    void tearDown()
+    {
+        delete stdlib;
+    }
+
+    void test_Randomize_uses_time()
+    {
+        stdlib->nextTime = 12345;
+        Dice dice;
+        TS_ASSERT_EQUALS( stdlib->lastSeed, 12345 );
+    }
+
+    void test_Roll()
+    {
+        Dice dice;
+
+        stdlib->nextRand = 0;
+        TS_ASSERT_EQUALS( dice.roll(), 1 );
+
+        stdlib->nextRand = 2;
+        TS_ASSERT_EQUALS( dice.roll(), 3 );
+
+        stdlib->nextRand = 5;
+        TS_ASSERT_EQUALS( dice.roll(), 6 );
+
+        stdlib->nextRand = 7;
+        TS_ASSERT_EQUALS( dice.roll(), 2 );
+    }
+
+    void test_Temporary_override_of_one_mock_function()
+    {
+        Dice dice;
+
+        stdlib->nextRand = 2;
+        TS_ASSERT_EQUALS( dice.roll(), 3 );
+
+        class Five : public T::Base_rand { int rand() { return 5; } };
+
+        Five *five = new Five;
+        TS_ASSERT_EQUALS( dice.roll(), 6 );
+        TS_ASSERT_EQUALS( dice.roll(), 6 );
+        TS_ASSERT_EQUALS( dice.roll(), 6 );
+        delete five;
+
+        stdlib->nextRand = 1;
+        TS_ASSERT_EQUALS( dice.roll(), 2 );
+    }
+};

test/cxxtest/sample/mock/mock_stdlib.cpp

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+#define CXXTEST_MOCK_TEST_SOURCE_FILE
+#include <T/stdlib.h>

test/cxxtest/sample/mock/real_stdlib.cpp

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+#define CXXTEST_MOCK_REAL_SOURCE_FILE
+#include <T/stdlib.h>

test/cxxtest/sample/mock/roll.cpp

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+#include <stdio.h>
+#include "Dice.h"
+
+int main()
+{
+    Dice dice;
+    printf( "First roll: %u\n", dice.roll() );
+    printf( "Second roll: %u\n", dice.roll() );
+
+    return 0;
+}