104 lines
2.0 KiB
Go
104 lines
2.0 KiB
Go
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package prototest
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import (
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"strconv"
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"testing"
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"github.com/stretchr/testify/require"
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)
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type wrap struct {
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V int
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O string
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}
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func (w *wrap) String() string {
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return strconv.Itoa(w.V)
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}
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func (w *wrap) GoString() string {
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return w.String()
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}
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func TestDiffElements_noProtobufs(t *testing.T) {
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// NOTE: this test only tests non-protobuf slices initially
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type testcase struct {
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a, b []*wrap
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notSame bool
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}
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run := func(t *testing.T, tc testcase) {
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diff := diffElements(tc.a, tc.b)
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if tc.notSame {
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require.False(t, diff == "", "expected not to be the same")
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} else {
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require.True(t, diff == "", "expected to be the same")
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}
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}
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w := func(v int) *wrap {
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return &wrap{V: v}
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}
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cases := map[string]testcase{
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"nil": {},
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"empty": {a: []*wrap{}, b: []*wrap{}},
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"nil and empty": {a: []*wrap{}, b: nil},
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"ordered match": {
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a: []*wrap{w(1), w(22), w(303), w(43004), w(-5)},
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b: []*wrap{w(1), w(22), w(303), w(43004), w(-5)},
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},
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"permuted match": {
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a: []*wrap{w(1), w(22), w(303), w(43004), w(-5)},
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b: []*wrap{w(-5), w(43004), w(303), w(22), w(1)},
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},
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"duplicates": {
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a: []*wrap{w(1), w(2), w(2), w(3)},
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b: []*wrap{w(2), w(1), w(3), w(2)},
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},
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// no match
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"1 vs nil": {
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a: []*wrap{w(1)},
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b: nil,
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notSame: true,
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},
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"1 vs 2": {
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a: []*wrap{w(1)},
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b: []*wrap{w(2)},
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notSame: true,
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},
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"1,2 vs 2,3": {
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a: []*wrap{w(1), w(2)},
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b: []*wrap{w(2), w(3)},
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notSame: true,
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},
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"1,2 vs 1,2,3": {
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a: []*wrap{w(1), w(2)},
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b: []*wrap{w(1), w(2), w(3)},
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notSame: true,
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},
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"duplicates omitted": {
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a: []*wrap{w(1), w(2), w(2), w(3)},
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b: []*wrap{w(1), w(3), w(2)},
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notSame: true,
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},
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}
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allCases := make(map[string]testcase)
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for name, tc := range cases {
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allCases[name] = tc
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allCases[name+" (flipped)"] = testcase{
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a: tc.b,
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b: tc.a,
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notSame: tc.notSame,
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}
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}
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for name, tc := range allCases {
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t.Run(name, func(t *testing.T) {
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run(t, tc)
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})
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}
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}
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