Function NewMutationMatcher

internal/githubv4mock/githubv4mock.go:43–63

NewMutationMatcher constructs a new matcher for the provided mutation and variables. If the provided mutation is a string, it will be used-as-is, otherwise it will be converted to a string using the constructMutation function taken from shurcooL/graphql. The input parameter is a special form of var

(mutation any, input any, variables map[string]any, response GQLResponse)

// to be used for later equality comparison, as when the http handler is called, the request body will no longer
// contain the input struct type information.
func NewMutationMatcher(mutation any, input any, variables map[string]any, response GQLResponse) Matcher {
	mutationString, ok := mutation.(string)
	if !ok {
		// Matching shurcooL/githubv4 mutation behaviour found in https://github.com/shurcooL/githubv4/blob/48295856cce734663ddbd790ff54800f784f3193/githubv4.go#L45-L56
		if variables == nil {
			variables = map[string]any{"input": input}
		} else {
			variables["input"] = input
		}

		mutationString = constructMutation(mutation, variables)
		m, _ := githubv4InputStructToMap(input)
		variables["input"] = m
	}

	return Matcher{
		Request:   mutationString,
		Variables: variables,
		Response:  response,
	}
}

type GQLResponse struct {
	Data   map[string]any `json:"data"`