| 1 | const assert = require('assert')
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| 2 | const { applyExtends } = require('./../../lib/config/config-file')
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| 3 |
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| 4 | describe('applyExtends', () => {
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| 5 | it('should return the same config if the extends property does not exist', () => {
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| 6 | const initialConfig = {
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| 7 | rules: {
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| 8 | rule0: 'error'
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| 9 | }
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| 10 | }
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| 11 | const result = applyExtends(initialConfig)
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| 12 |
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| 13 | assert.deepStrictEqual(result, initialConfig)
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| 14 | })
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| 15 |
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| 16 | it('should use the given config if the extends array is empty', () => {
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| 17 | const initialConfig = {
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| 18 | extends: [],
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| 19 | rules: {
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| 20 | rule0: 'error'
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| 21 | }
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| 22 | }
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| 23 | const result = applyExtends(initialConfig)
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| 24 |
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| 25 | assert.deepStrictEqual(result, initialConfig)
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| 26 | })
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| 27 |
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| 28 | it('should add the rules in the config', () => {
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| 29 | const initialConfig = {
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| 30 | extends: ['config1'],
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| 31 | rules: {
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| 32 | rule0: 'error'
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| 33 | }
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| 34 | }
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| 35 | const config1 = {
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| 36 | rules: {
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| 37 | rule1: 'warning'
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| 38 | }
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| 39 | }
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| 40 | const result = applyExtends(initialConfig, configName => ({ config1 }[configName]))
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| 41 |
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| 42 | assert.deepStrictEqual(result, {
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| 43 | extends: ['config1'],
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| 44 | rules: {
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| 45 | rule0: 'error',
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| 46 | rule1: 'warning'
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| 47 | }
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| 48 | })
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| 49 | })
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| 50 |
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| 51 | it('should accept a string as the value of extends', () => {
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| 52 | const initialConfig = {
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| 53 | extends: 'config1',
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| 54 | rules: {
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| 55 | rule0: 'error'
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| 56 | }
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| 57 | }
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| 58 | const config1 = {
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| 59 | rules: {
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| 60 | rule1: 'warning'
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| 61 | }
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| 62 | }
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| 63 | const result = applyExtends(initialConfig, configName => ({ config1 }[configName]))
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| 64 |
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| 65 | assert.deepStrictEqual(result, {
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| 66 | extends: ['config1'],
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| 67 | rules: {
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| 68 | rule0: 'error',
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| 69 | rule1: 'warning'
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| 70 | }
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| 71 | })
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| 72 | })
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| 73 |
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| 74 | it('should give higher priority to later configs', () => {
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| 75 | const initialConfig = {
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| 76 | extends: ['config1', 'config2'],
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| 77 | rules: {
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| 78 | rule0: 'error'
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| 79 | }
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| 80 | }
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| 81 | const config1 = {
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| 82 | rules: {
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| 83 | rule1: 'warning'
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| 84 | }
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| 85 | }
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| 86 | const config2 = {
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| 87 | rules: {
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| 88 | rule1: 'off'
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| 89 | }
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| 90 | }
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| 91 | const result = applyExtends(initialConfig, configName => ({ config1, config2 }[configName]))
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| 92 |
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| 93 | assert.deepStrictEqual(result, {
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| 94 | extends: ['config1', 'config2'],
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| 95 | rules: {
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| 96 | rule0: 'error',
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| 97 | rule1: 'off'
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| 98 | }
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| 99 | })
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| 100 | })
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| 101 |
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| 102 | it('should give higher priority to rules in the config file', () => {
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| 103 | const initialConfig = {
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| 104 | extends: ['config1', 'config2'],
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| 105 | rules: {
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| 106 | rule0: 'error'
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| 107 | }
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| 108 | }
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| 109 | const config1 = {
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| 110 | rules: {
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| 111 | rule0: 'warning'
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| 112 | }
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| 113 | }
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| 114 | const config2 = {
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| 115 | rules: {
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| 116 | rule0: 'off'
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| 117 | }
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| 118 | }
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| 119 | const result = applyExtends(initialConfig, configName => ({ config1, config2 }[configName]))
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| 120 |
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| 121 | assert.deepStrictEqual(result, {
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| 122 | extends: ['config1', 'config2'],
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| 123 | rules: {
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| 124 | rule0: 'error'
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| 125 | }
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| 126 | })
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| 127 | })
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| 128 | })
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