Function TestValueSourceChain

value_source_test.go:143–181

(t *testing.T)

}

func TestValueSourceChain(t *testing.T) {
	t.Run("implements ValueSource", func(t *testing.T) {
		vsc := &ValueSourceChain{}
		r := require.New(t)

		r.Implements((*ValueSource)(nil), vsc)

		_, ok := vsc.Lookup()
		r.False(ok)
	})

	t.Run("implements fmt.GoStringer", func(t *testing.T) {
		vsc := &ValueSourceChain{}
		r := require.New(t)

		r.Implements((*fmt.GoStringer)(nil), vsc)
		r.Equal("&ValueSourceChain{Chain:{}}", vsc.GoString())

		vsc1 := NewValueSourceChain(&staticValueSource{v: "yahtzee"},
			&staticValueSource{v: "matzoh"},
		)
		r.Equal("&ValueSourceChain{Chain:{&staticValueSource{v:\"yahtzee\"},&staticValueSource{v:\"matzoh\"}}}", vsc1.GoString())
	})

	t.Run("implements fmt.Stringer", func(t *testing.T) {
		vsc := &ValueSourceChain{}
		r := require.New(t)

		r.Implements((*fmt.Stringer)(nil), vsc)
		r.Equal("", vsc.String())

		vsc1 := NewValueSourceChain(
			&staticValueSource{v: "soup"},
			&staticValueSource{v: "salad"},
			&staticValueSource{v: "pumpkins"},
		)
		r.Equal("soup,salad,pumpkins", vsc1.String())
	})
}

type staticValueSource struct {
	v string