mirror of https://github.com/vector-im/riot-web
49 lines
1.7 KiB
JavaScript
49 lines
1.7 KiB
JavaScript
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/*
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Copyright 2019 The Matrix.org Foundation C.I.C.
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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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import expect from 'expect';
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import {diffDeletion} from "../../src/editor/diff";
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describe('editor/diff', function() {
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describe('diffDeletion', function() {
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it('at start of string', function() {
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const diff = diffDeletion("hello", "ello");
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expect(diff.at).toBe(0);
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expect(diff.removed).toBe("h");
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});
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it('removing whole string', function() {
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const diff = diffDeletion("hello", "");
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expect(diff.at).toBe(0);
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expect(diff.removed).toBe("hello");
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});
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it('in middle of string', function() {
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const diff = diffDeletion("hello", "hllo");
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expect(diff.at).toBe(1);
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expect(diff.removed).toBe("e");
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});
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it('in middle of string with duplicate character', function() {
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const diff = diffDeletion("hello", "helo");
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expect(diff.at).toBe(3);
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expect(diff.removed).toBe("l");
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});
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it('at end of string', function() {
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const diff = diffDeletion("hello", "hell");
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expect(diff.at).toBe(4);
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expect(diff.removed).toBe("o");
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});
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});
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});
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