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diffDeepEquals - Make protobuf differences more clear
This helper uses `json-diff` to provide a unified diff style output when two objects don't match. This is way faster than manually diff a large nested object.
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,33 @@ | ||
| // Copyright (c) 2019 Uber Technologies, Inc. | ||
| // | ||
| // 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. | ||
|
|
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| import {default as deepEquals} from 'deep-equal'; | ||
| import {diffString} from 'json-diff'; | ||
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| /** | ||
| * Run a deep comparison on the given objects, returning a clear | ||
| * unified diff style difference. Helps highlight small changes in | ||
| * large, nested, objects. | ||
| * @param {Tape} t Tape test object | ||
| * @param {Object} a First object | ||
| * @param {Object} b Second object, compared to the first | ||
| */ | ||
| export function diffDeepEquals(t, a, b, msg) { | ||
| if (deepEquals(a, b, msg)) { | ||
| t.pass(msg); | ||
| } else { | ||
| const diff = diffString(a, b); | ||
| t.fail(`Objects not equal: ${msg}: ${diff}`); | ||
| } | ||
| } |
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