cc/cc_test.go

package cc

import (
	"reflect"
	"testing"
)

var lastUniqueElementsTestCases = []struct {
	in  []string
	out []string
}{
	{
		in:  []string{"a"},
		out: []string{"a"},
	},
	{
		in:  []string{"a", "b"},
		out: []string{"a", "b"},
	},
	{
		in:  []string{"a", "a"},
		out: []string{"a"},
	},
	{
		in:  []string{"a", "b", "a"},
		out: []string{"b", "a"},
	},
	{
		in:  []string{"b", "a", "a"},
		out: []string{"b", "a"},
	},
	{
		in:  []string{"a", "a", "b"},
		out: []string{"a", "b"},
	},
	{
		in:  []string{"a", "b", "a", "b"},
		out: []string{"a", "b"},
	},
	{
		in:  []string{"liblog", "libdl", "libc++", "libdl", "libc", "libm"},
		out: []string{"liblog", "libc++", "libdl", "libc", "libm"},
	},
}

func TestLastUniqueElements(t *testing.T) {
	for _, testCase := range lastUniqueElementsTestCases {
		out := lastUniqueElements(testCase.in)
		if !reflect.DeepEqual(out, testCase.out) {
			t.Errorf("incorrect output:")
			t.Errorf("     input: %#v", testCase.in)
			t.Errorf("  expected: %#v", testCase.out)
			t.Errorf("       got: %#v", out)
		}
	}
}

var (
	str11 = "01234567891"
	str10 = str11[:10]
	str9  = str11[:9]
	str5  = str11[:5]
	str4  = str11[:4]
)

var splitListForSizeTestCases = []struct {
	in   []string
	out  [][]string
	size int
}{
	{
		in:   []string{str10},
		out:  [][]string{{str10}},
		size: 10,
	},
	{
		in:   []string{str9},
		out:  [][]string{{str9}},
		size: 10,
	},
	{
		in:   []string{str5},
		out:  [][]string{{str5}},
		size: 10,
	},
	{
		in:   []string{str11},
		out:  nil,
		size: 10,
	},
	{
		in:   []string{str10, str10},
		out:  [][]string{{str10}, {str10}},
		size: 10,
	},
	{
		in:   []string{str9, str10},
		out:  [][]string{{str9}, {str10}},
		size: 10,
	},
	{
		in:   []string{str10, str9},
		out:  [][]string{{str10}, {str9}},
		size: 10,
	},
	{
		in:   []string{str5, str4},
		out:  [][]string{{str5, str4}},
		size: 10,
	},
	{
		in:   []string{str5, str4, str5},
		out:  [][]string{{str5, str4}, {str5}},
		size: 10,
	},
	{
		in:   []string{str5, str4, str5, str4},
		out:  [][]string{{str5, str4}, {str5, str4}},
		size: 10,
	},
	{
		in:   []string{str5, str4, str5, str5},
		out:  [][]string{{str5, str4}, {str5}, {str5}},
		size: 10,
	},
	{
		in:   []string{str5, str5, str5, str4},
		out:  [][]string{{str5}, {str5}, {str5, str4}},
		size: 10,
	},
	{
		in:   []string{str9, str11},
		out:  nil,
		size: 10,
	},
	{
		in:   []string{str11, str9},
		out:  nil,
		size: 10,
	},
}

func TestSplitListForSize(t *testing.T) {
	for _, testCase := range splitListForSizeTestCases {
		out, _ := splitListForSize(testCase.in, testCase.size)
		if !reflect.DeepEqual(out, testCase.out) {
			t.Errorf("incorrect output:")
			t.Errorf("     input: %#v", testCase.in)
			t.Errorf("      size: %d", testCase.size)
			t.Errorf("  expected: %#v", testCase.out)
			t.Errorf("       got: %#v", out)
		}
	}
}