package langext

import (
	"git.blackforestbytes.com/BlackForestBytes/goext/tst"
	"testing"
)

func TestFuncChain(t *testing.T) {
	addOne := func(v int) int { return v + 1 }
	timesTwo := func(v int) int { return v * 2 }

	chained := FuncChain(addOne, timesTwo)
	tst.AssertEqual(t, chained(3), 8)
}

func TestFuncChainOrder(t *testing.T) {
	first := func(v string) string { return v + "A" }
	second := func(v string) string { return v + "B" }

	chained := FuncChain(first, second)
	tst.AssertEqual(t, chained("X"), "XAB")
}