func TestExpectTrueNil(t *testing.T) {
// Make sure that passing "nil" to EXPECT (thus as a nil interface value),
// will correctly match a nil concrete type.
ctrl := gomock.NewController(t)
defer ctrl.Finish()
mockIndex := mock_user.NewMockIndex(ctrl)
mockIndex.EXPECT().Ptr(nil) // this nil is a nil interface{}
mockIndex.Ptr(nil) // this nil is a nil *int
}
func TestGrabPointer(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
mockIndex := mock_user.NewMockIndex(ctrl)
mockIndex.EXPECT().Ptr(gomock.Any()).SetArg(0, 7) // set first argument to 7
i := user.GrabPointer(mockIndex)
if i != 7 {
t.Errorf("Expected 7, got %d", i)
}
}
func TestRemember(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
mockIndex := mock_user.NewMockIndex(ctrl)
mockIndex.EXPECT().Put("a", 1) // literals work
mockIndex.EXPECT().Put("b", gomock.Eq(2)) // matchers work too
// NillableRet returns error. Not declaring it should result in a nil return.
mockIndex.EXPECT().NillableRet()
// Calls that returns something assignable to the return type.
boolc := make(chan bool)
// In this case, "chan bool" is assignable to "chan<- bool".
mockIndex.EXPECT().ConcreteRet().Return(boolc)
// In this case, nil is assignable to "chan<- bool".
mockIndex.EXPECT().ConcreteRet().Return(nil)
// Should be able to place expectations on variadic methods.
mockIndex.EXPECT().Ellip("%d", 0, 1, 1, 2, 3) // direct args
tri := []interface{}{1, 3, 6, 10, 15}
mockIndex.EXPECT().Ellip("%d", tri...) // args from slice
mockIndex.EXPECT().EllipOnly(gomock.Eq("arg"))
user.Remember(mockIndex, []string{"a", "b"}, []interface{}{1, 2})
// Check the ConcreteRet calls.
if c := mockIndex.ConcreteRet(); c != boolc {
t.Errorf("ConcreteRet: got %v, want %v", c, boolc)
}
if c := mockIndex.ConcreteRet(); c != nil {
t.Errorf("ConcreteRet: got %v, want nil", c)
}
// Try one with an action.
calledString := ""
mockIndex.EXPECT().Put(gomock.Any(), gomock.Any()).Do(func(key string, _ interface{}) {
calledString = key
})
mockIndex.EXPECT().NillableRet()
user.Remember(mockIndex, []string{"blah"}, []interface{}{7})
if calledString != "blah" {
t.Fatalf(`Uh oh. %q != "blah"`, calledString)
}
// Use Do with a nil arg.
mockIndex.EXPECT().Put("nil-key", gomock.Any()).Do(func(key string, value interface{}) {
if value != nil {
t.Errorf("Put did not pass through nil; got %v", value)
}
})
mockIndex.EXPECT().NillableRet()
user.Remember(mockIndex, []string{"nil-key"}, []interface{}{nil})
}