動作

透過 Call::Return 直接指定 回傳值

#include "hippomocks.h"

int legacy_c() {
    return 123;
}

TEST(Demo, legacy_c_test) {

    MockRepository mocks;

    EXPECT_EQ(123, legacy_c());                   // pass

    mocks.ExpectCallFunc(legacy_c).Return(456);

    EXPECT_EQ(456, legacy_c());                   // pass
}

Call::Throw 可以指定要丟出例外

#include "hippomocks.h"

void no_throw() {
    return;
}

TEST(Demo, Throw) {

    MockRepository mocks;

    EXPECT_NO_THROW({                                   // pass
        no_throw();
    });

    std::exception e;

    mocks.ExpectCallFunc(no_throw).Throw(e);

    EXPECT_THROW({                                      // pass
        no_throw();
    }, std::exception);
}

透過 Call::Do 傳入 function handler 可以執行更複雜的動做

#include "hippomocks.h"

bool isOdd(int i) {
    return 0 != i % 2;
}

TEST(Demo, Do) {

    MockRepository mocks;

    EXPECT_TRUE(isOdd(1));                           // pass

    auto fn = [](int){

        cout << "do something special ..." << endl;

        return false;
    };

    mocks.ExpectCallFunc(isOdd).Do(fn);

    EXPECT_FALSE(isOdd(1));                          // pass
}