Custom Gomega Matcher

This Repository has code to implement custom gomega matcher

Check out a detailed blog here

As per documentation as found here we can develop custom gomega matchers which can extend the power of our testing

type GomegaMatcher interface {
    Match(actual interface{}) (success bool, err error)
    FailureMessage(actual interface{}) (message string)
    NegatedFailureMessage(actual interface{}) (message string)
}

Custom Gomega Matchers must fall under this interface , hence there has to be three methods defined for our objects.

Files Present

• human/human.go
  • This contains the Person struct which is to be tested
  • This struct age attribute is tested
  • The file also contains relevant methods to implement the gomega matcher

type Person struct {
	age []int
}

• human_test.go
  • The human_test.go file contains the implementation of the Person struct
  • The tests follow the format followed by kubernetes sub projects which I have observed

The tests follow a format of

struct {
		name        string
		targetAge   []int
		humanTarget human.Person
		want        bool
	}

• Here name defines name of the test
• targetAge is the values we give
• humanTarget is the Person struct we provide
• want identifies if true or false