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edit.test.ts
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edit.test.ts
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/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
'use strict';
import * as assert from 'assert';
import { FormattingOptions, Edit, ModificationOptions, modify } from '../main';
suite('JSON - edits', () => {
function assertEdit(content: string, edits: Edit[], expected: string) {
assert(edits);
let lastEditOffset = content.length;
for (let i = edits.length - 1; i >= 0; i--) {
let edit = edits[i];
assert(edit.offset >= 0 && edit.length >= 0 && edit.offset + edit.length <= content.length);
assert(typeof edit.content === 'string');
assert(lastEditOffset >= edit.offset + edit.length); // make sure all edits are ordered
lastEditOffset = edit.offset;
content = content.substring(0, edit.offset) + edit.content + content.substring(edit.offset + edit.length);
}
assert.strictEqual(content, expected);
}
let formattingOptions: FormattingOptions = {
insertSpaces: true,
tabSize: 2,
eol: '\n'
};
let options: ModificationOptions = {
formattingOptions
};
test('set property', () => {
let content = '{\n "x": "y"\n}';
let edits = modify(content, ['x'], 'bar', options);
assertEdit(content, edits, '{\n "x": "bar"\n}');
content = 'true';
edits = modify(content, [], 'bar', options);
assertEdit(content, edits, '"bar"');
content = '{\n "x": "y"\n}';
edits = modify(content, ['x'], { key: true }, options);
assertEdit(content, edits, '{\n "x": {\n "key": true\n }\n}');
content = '{\n "a": "b", "x": "y"\n}';
edits = modify(content, ['a'], null, options);
assertEdit(content, edits, '{\n "a": null, "x": "y"\n}');
});
test('insert property', () => {
let content = '{}';
let edits = modify(content, ['foo'], 'bar', options);
assertEdit(content, edits, '{\n "foo": "bar"\n}');
edits = modify(content, ['foo', 'foo2'], 'bar', options);
assertEdit(content, edits, '{\n "foo": {\n "foo2": "bar"\n }\n}');
content = '{\n}';
edits = modify(content, ['foo'], 'bar', options);
assertEdit(content, edits, '{\n "foo": "bar"\n}');
content = ' {\n }';
edits = modify(content, ['foo'], 'bar', options);
assertEdit(content, edits, ' {\n "foo": "bar"\n }');
content = '{\n "x": "y"\n}';
edits = modify(content, ['foo'], 'bar', options);
assertEdit(content, edits, '{\n "x": "y",\n "foo": "bar"\n}');
content = '{\n "x": "y"\n}';
edits = modify(content, ['e'], 'null', options);
assertEdit(content, edits, '{\n "x": "y",\n "e": "null"\n}');
edits = modify(content, ['x'], 'bar', options);
assertEdit(content, edits, '{\n "x": "bar"\n}');
content = '{\n "x": {\n "a": 1,\n "b": true\n }\n}\n';
edits = modify(content, ['x'], 'bar', options);
assertEdit(content, edits, '{\n "x": "bar"\n}\n');
edits = modify(content, ['x', 'b'], 'bar', options);
assertEdit(content, edits, '{\n "x": {\n "a": 1,\n "b": "bar"\n }\n}\n');
edits = modify(content, ['x', 'c'], 'bar', { formattingOptions, getInsertionIndex: () => 0 });
assertEdit(content, edits, '{\n "x": {\n "c": "bar",\n "a": 1,\n "b": true\n }\n}\n');
edits = modify(content, ['x', 'c'], 'bar', { formattingOptions, getInsertionIndex: () => 1 });
assertEdit(content, edits, '{\n "x": {\n "a": 1,\n "c": "bar",\n "b": true\n }\n}\n');
edits = modify(content, ['x', 'c'], 'bar', { formattingOptions, getInsertionIndex: () => 2 });
assertEdit(content, edits, '{\n "x": {\n "a": 1,\n "b": true,\n "c": "bar"\n }\n}\n');
edits = modify(content, ['c'], 'bar', options);
assertEdit(content, edits, '{\n "x": {\n "a": 1,\n "b": true\n },\n "c": "bar"\n}\n');
content = '{\n "a": [\n {\n } \n ] \n}';
edits = modify(content, ['foo'], 'bar', options);
assertEdit(content, edits, '{\n "a": [\n {\n } \n ],\n "foo": "bar"\n}');
content = '';
edits = modify(content, ['foo', 0], 'bar', options);
assertEdit(content, edits, '{\n "foo": [\n "bar"\n ]\n}');
content = '//comment';
edits = modify(content, ['foo', 0], 'bar', options);
assertEdit(content, edits, '{\n "foo": [\n "bar"\n ]\n} //comment');
});
test('remove property', () => {
let content = '{\n "x": "y"\n}';
let edits = modify(content, ['x'], undefined, options);
assertEdit(content, edits, '{\n}');
content = '{\n "x": "y", "a": []\n}';
edits = modify(content, ['x'], undefined, options);
assertEdit(content, edits, '{\n "a": []\n}');
content = '{\n "x": "y", "a": []\n}';
edits = modify(content, ['a'], undefined, options);
assertEdit(content, edits, '{\n "x": "y"\n}');
});
test('set item', () => {
let content = '{\n "x": [1, 2, 3],\n "y": 0\n}';
let edits = modify(content, ['x', 0], 6, options);
assertEdit(content, edits, '{\n "x": [6, 2, 3],\n "y": 0\n}');
edits = modify(content, ['x', 1], 5, options);
assertEdit(content, edits, '{\n "x": [1, 5, 3],\n "y": 0\n}');
edits = modify(content, ['x', 2], 4, options);
assertEdit(content, edits, '{\n "x": [1, 2, 4],\n "y": 0\n}');
edits = modify(content, ['x', 3], 3, options);
assertEdit(content, edits, '{\n "x": [\n 1,\n 2,\n 3,\n 3\n ],\n "y": 0\n}');
});
test('insert item at 0; isArrayInsertion = true', () => {
let content = '[\n 2,\n 3\n]';
let edits = modify(content, [0], 1, { formattingOptions, isArrayInsertion: true });
assertEdit(content, edits, '[\n 1,\n 2,\n 3\n]');
});
test('insert item at 0 in empty array', () => {
let content = '[\n]';
let edits = modify(content, [0], 1, options);
assertEdit(content, edits, '[\n 1\n]');
});
test('insert item at an index; isArrayInsertion = true', () => {
let content = '[\n 1,\n 3\n]';
let edits = modify(content, [1], 2, { formattingOptions, isArrayInsertion: true });
assertEdit(content, edits, '[\n 1,\n 2,\n 3\n]');
});
test('insert item at an index in empty array', () => {
let content = '[\n]';
let edits = modify(content, [1], 1, options);
assertEdit(content, edits, '[\n 1\n]');
});
test('insert item at end index', () => {
let content = '[\n 1,\n 2\n]';
let edits = modify(content, [2], 3, options);
assertEdit(content, edits, '[\n 1,\n 2,\n 3\n]');
});
test('insert item at end to empty array', () => {
let content = '[\n]';
let edits = modify(content, [-1], 'bar', options);
assertEdit(content, edits, '[\n "bar"\n]');
});
test('insert item at end', () => {
let content = '[\n 1,\n 2\n]';
let edits = modify(content, [-1], 'bar', options);
assertEdit(content, edits, '[\n 1,\n 2,\n "bar"\n]');
});
test('remove item in array with one item', () => {
let content = '[\n 1\n]';
let edits = modify(content, [0], void 0, options);
assertEdit(content, edits, '[]');
});
test('remove item in the middle of the array', () => {
let content = '[\n 1,\n 2,\n 3\n]';
let edits = modify(content, [1], void 0, options);
assertEdit(content, edits, '[\n 1,\n 3\n]');
});
test('remove last item in the array', () => {
let content = '[\n 1,\n 2,\n "bar"\n]';
let edits = modify(content, [2], void 0, options);
assertEdit(content, edits, '[\n 1,\n 2\n]');
});
test('remove last item in the array if ends with comma', () => {
let content = '[\n 1,\n "foo",\n "bar",\n]';
let edits = modify(content, [2], void 0, options);
assertEdit(content, edits, '[\n 1,\n "foo"\n]');
});
test('remove last item in the array if there is a comment in the beginning', () => {
let content = '// This is a comment\n[\n 1,\n "foo",\n "bar"\n]';
let edits = modify(content, [2], void 0, options);
assertEdit(content, edits, '// This is a comment\n[\n 1,\n "foo"\n]');
});
test('set property without formatting', () => {
let content = '{\n "x": [1, 2, 3],\n "y": 0\n}';
let edits = modify(content, ['x', 0], { a: 1, b: 2 }, { formattingOptions });
assertEdit(content, edits, '{\n "x": [{\n "a": 1,\n "b": 2\n }, 2, 3],\n "y": 0\n}');
edits = modify(content, ['x', 0], { a: 1, b: 2 }, { formattingOptions: undefined });
assertEdit(content, edits, '{\n "x": [{"a":1,"b":2}, 2, 3],\n "y": 0\n}');
});
});