package stringslice import ( "fmt" "testing" "github.com/stretchr/testify/require" ) func TestContains(t *testing.T) { l := []string{"a", "b", "c"} if !Contains(l, "b") { t.Fatalf("should contain") } if Contains(l, "d") { t.Fatalf("should not contain") } } func TestEqual(t *testing.T) { for _, tc := range []struct { a, b []string equal bool }{ {nil, nil, true}, {nil, []string{}, true}, {[]string{}, []string{}, true}, {[]string{"a"}, []string{"a"}, true}, {[]string{}, []string{"a"}, false}, {[]string{"a"}, []string{"a", "b"}, false}, {[]string{"a", "b"}, []string{"a", "b"}, true}, {[]string{"a", "b"}, []string{"b", "a"}, false}, } { name := fmt.Sprintf("%#v =?= %#v", tc.a, tc.b) t.Run(name, func(t *testing.T) { require.Equal(t, tc.equal, Equal(tc.a, tc.b)) require.Equal(t, tc.equal, Equal(tc.b, tc.a)) }) } } func TestMergeSorted(t *testing.T) { for name, tc := range map[string]struct { a, b []string expect []string }{ "nil": {nil, nil, nil}, "empty": {[]string{}, []string{}, nil}, "one and none": {[]string{"foo"}, []string{}, []string{"foo"}}, "one and one dupe": {[]string{"foo"}, []string{"foo"}, []string{"foo"}}, "one and one": {[]string{"foo"}, []string{"bar"}, []string{"bar", "foo"}}, "two and one": {[]string{"baz", "foo"}, []string{"bar"}, []string{"bar", "baz", "foo"}}, "two and two": {[]string{"baz", "foo"}, []string{"bar", "egg"}, []string{"bar", "baz", "egg", "foo"}}, "two and two dupe": {[]string{"bar", "foo"}, []string{"bar", "egg"}, []string{"bar", "egg", "foo"}}, } { tc := tc t.Run(name, func(t *testing.T) { require.Equal(t, tc.expect, MergeSorted(tc.a, tc.b)) require.Equal(t, tc.expect, MergeSorted(tc.b, tc.a)) }) } }