How to test the equivalence of maps in Golang?

Question

I have a table-driven test case like this one:

func CountWords(s string) map[string]int

func TestCountWords(t *testing.T) {
  var tests = []struct {
    input s         


        

Answer 1

This is what I would do (untested code):

func eq(a, b map[string]int) bool {
        if len(a) != len(b) {
                return false
        }

        for k, v := range a {
                if w, ok := b[k]; !ok || v != w {
                        return false
                }
        }

        return true
}