| // Copyright 2013 Google Inc. All rights reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package pretty |
| |
| import ( |
| "testing" |
| ) |
| |
| func TestDiff(t *testing.T) { |
| type example struct { |
| Name string |
| Age int |
| Friends []string |
| } |
| |
| tests := []struct { |
| desc string |
| got, want interface{} |
| diff string |
| }{ |
| { |
| desc: "basic struct", |
| got: example{ |
| Name: "Zaphd", |
| Age: 42, |
| Friends: []string{ |
| "Ford Prefect", |
| "Trillian", |
| "Marvin", |
| }, |
| }, |
| want: example{ |
| Name: "Zaphod", |
| Age: 42, |
| Friends: []string{ |
| "Ford Prefect", |
| "Trillian", |
| }, |
| }, |
| diff: ` { |
| - Name: "Zaphd", |
| + Name: "Zaphod", |
| Age: 42, |
| Friends: [ |
| "Ford Prefect", |
| "Trillian", |
| - "Marvin", |
| ], |
| }`, |
| }, |
| } |
| |
| for _, test := range tests { |
| if got, want := Compare(test.got, test.want), test.diff; got != want { |
| t.Errorf("%s:", test.desc) |
| t.Errorf(" got: %q", got) |
| t.Errorf(" want: %q", want) |
| } |
| } |
| } |
| |
| func TestSkipZeroFields(t *testing.T) { |
| type example struct { |
| Name string |
| Species string |
| Age int |
| Friends []string |
| } |
| |
| tests := []struct { |
| desc string |
| got, want interface{} |
| diff string |
| }{ |
| { |
| desc: "basic struct", |
| got: example{ |
| Name: "Zaphd", |
| Species: "Betelgeusian", |
| Age: 42, |
| }, |
| want: example{ |
| Name: "Zaphod", |
| Species: "Betelgeusian", |
| Age: 42, |
| Friends: []string{ |
| "Ford Prefect", |
| "Trillian", |
| "", |
| }, |
| }, |
| diff: ` { |
| - Name: "Zaphd", |
| + Name: "Zaphod", |
| Species: "Betelgeusian", |
| Age: 42, |
| + Friends: [ |
| + "Ford Prefect", |
| + "Trillian", |
| + "", |
| + ], |
| }`, |
| }, |
| } |
| |
| cfg := *CompareConfig |
| cfg.SkipZeroFields = true |
| |
| for _, test := range tests { |
| if got, want := cfg.Compare(test.got, test.want), test.diff; got != want { |
| t.Errorf("%s:", test.desc) |
| t.Errorf(" got: %q", got) |
| t.Errorf(" want: %q", want) |
| } |
| } |
| } |