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92 lines
1.6 KiB
Go
92 lines
1.6 KiB
Go
// Copyright (c) 2015, Emir Pasic. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package utils
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import (
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"testing"
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)
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func TestIntComparator(t *testing.T) {
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// i1,i2,expected
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tests := [][]interface{}{
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{1, 1, 0},
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{1, 2, -1},
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{2, 1, 1},
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{11, 22, -1},
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{0, 0, 0},
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{1, 0, 1},
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{0, 1, -1},
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}
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for _, test := range tests {
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actual := IntComparator(test[0], test[1])
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expected := test[2]
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if actual != expected {
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t.Errorf("Got %v expected %v", actual, expected)
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}
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}
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}
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func TestStringComparator(t *testing.T) {
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// s1,s2,expected
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tests := [][]interface{}{
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{"a", "a", 0},
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{"a", "b", -1},
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{"b", "a", 1},
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{"aa", "aab", -1},
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{"", "", 0},
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{"a", "", 1},
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{"", "a", -1},
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{"", "aaaaaaa", -1},
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}
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for _, test := range tests {
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actual := StringComparator(test[0], test[1])
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expected := test[2]
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if actual != expected {
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t.Errorf("Got %v expected %v", actual, expected)
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}
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}
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}
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func TestCustomComparator(t *testing.T) {
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type Custom struct {
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id int
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name string
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}
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byID := func(a, b interface{}) int {
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c1 := a.(Custom)
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c2 := b.(Custom)
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switch {
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case c1.id > c2.id:
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return 1
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case c1.id < c2.id:
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return -1
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default:
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return 0
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}
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}
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// o1,o2,expected
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tests := [][]interface{}{
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{Custom{1, "a"}, Custom{1, "a"}, 0},
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{Custom{1, "a"}, Custom{2, "b"}, -1},
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{Custom{2, "b"}, Custom{1, "a"}, 1},
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{Custom{1, "a"}, Custom{1, "b"}, 0},
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}
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for _, test := range tests {
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actual := byID(test[0], test[1])
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expected := test[2]
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if actual != expected {
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t.Errorf("Got %v expected %v", actual, expected)
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}
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}
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}
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