88 lines
2 KiB
Go
88 lines
2 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package diff
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import (
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"testing"
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)
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func TestObjectReflectDiff(t *testing.T) {
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type struct1 struct{ A []int }
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testCases := map[string]struct {
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a, b interface{}
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out string
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}{
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"map": {
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a: map[string]int{},
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b: map[string]int{},
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},
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"detect nil map": {
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a: map[string]int(nil),
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b: map[string]int{},
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out: `
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object:
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a: map[string]int(nil)
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b: map[string]int{}`,
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},
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"detect map changes": {
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a: map[string]int{"test": 1, "other": 2},
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b: map[string]int{"test": 2, "third": 3},
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out: `
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object[other]:
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a: 2
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b: <nil>
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object[test]:
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a: 1
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b: 2
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object[third]:
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a: <nil>
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b: 3`,
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},
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"nil slice": {a: struct1{A: nil}, b: struct1{A: nil}},
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"empty slice": {a: struct1{A: []int{}}, b: struct1{A: []int{}}},
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"detect slice changes 1": {a: struct1{A: []int{1}}, b: struct1{A: []int{2}}, out: `
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object.A[0]:
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a: 1
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b: 2`,
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},
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"detect slice changes 2": {a: struct1{A: []int{}}, b: struct1{A: []int{2}}, out: `
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object.A[0]:
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a: <nil>
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b: 2`,
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},
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"detect slice changes 3": {a: struct1{A: []int{1}}, b: struct1{A: []int{}}, out: `
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object.A[0]:
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a: 1
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b: <nil>`,
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},
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"detect nil vs empty slices": {a: struct1{A: nil}, b: struct1{A: []int{}}, out: `
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object.A:
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a: []int(nil)
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b: []int{}`,
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},
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}
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for name, test := range testCases {
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expect := test.out
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if len(expect) == 0 {
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expect = "<no diffs>"
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}
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if actual := ObjectReflectDiff(test.a, test.b); actual != expect {
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t.Errorf("%s: unexpected output: %s", name, actual)
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}
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}
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}
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