tools_test.go

package main

import (
	"errors"
	"testing"
)

func TestCheck(t *testing.T) {
	defer func() {
		r := recover()
		if r != nil {
			t.Errorf("check should not panic")
		}
	}()
	check(nil)
}

func TestCheckWithErr(t *testing.T) {
	defer func() {
		r := recover()
		if r == nil {
			t.Errorf("check should panic")
		}
	}()
	check(errors.New("error"))
}

func TestByteSlice(t *testing.T) {

	if !byteSliceEquals([]byte{1, 2, 3}, []byte{1, 2, 3}) {
		t.Error("Expected true")
	}
}

func TestByteSliceWrong(t *testing.T) {

	if byteSliceEquals([]byte{7, 2, 3, 4, 5, 6}, []byte{1, 2, 3, 4, 5, 6}) {
		t.Error("Expected {1,2,3,4,5,6}")
	}
}

func TestByteSliceNil(t *testing.T) {

	if byteSliceEquals([]byte{7, 2, 3, 4, 5, 6}, nil) {
		t.Error("Expected false")
	}
}

func TestByteSliceDifferentLength(t *testing.T) {

	if byteSliceEquals([]byte{7, 2, 3, 4, 5, 6}, []byte{1, 2, 3}) {
		t.Error("Expected false")
	}
}

func TestByteSliceBothNil(t *testing.T) {

	if !byteSliceEquals(nil, nil) {
		t.Error("Expected true")
	}
}

func TestDifference(t *testing.T) {
	a := []string{"cat", "dog"}
	b := []string{"cat", "dog", "mouse"}

	mouse := difference(b, a)
	if len(mouse) != 1 && mouse[0] != "mouse" {
		t.Error("Expected [\"mouse\"]")
	}
}