1 | var test = require('tape');
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2 | var path = require('path');
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3 | var parse = path.parse || require('path-parse');
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4 | var keys = require('object-keys');
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5 |
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6 | var nodeModulesPaths = require('../lib/node-modules-paths');
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7 |
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8 | var verifyDirs = function verifyDirs(t, start, dirs, moduleDirectories, paths) {
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9 | var moduleDirs = [].concat(moduleDirectories || 'node_modules');
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10 | if (paths) {
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11 | for (var k = 0; k < paths.length; ++k) {
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12 | moduleDirs.push(path.basename(paths[k]));
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13 | }
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14 | }
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15 |
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16 | var foundModuleDirs = {};
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17 | var uniqueDirs = {};
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18 | var parsedDirs = {};
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19 | for (var i = 0; i < dirs.length; ++i) {
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20 | var parsed = parse(dirs[i]);
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21 | if (!foundModuleDirs[parsed.base]) { foundModuleDirs[parsed.base] = 0; }
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22 | foundModuleDirs[parsed.base] += 1;
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23 | parsedDirs[parsed.dir] = true;
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24 | uniqueDirs[dirs[i]] = true;
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25 | }
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26 | t.equal(keys(parsedDirs).length >= start.split(path.sep).length, true, 'there are >= dirs than "start" has');
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27 | var foundModuleDirNames = keys(foundModuleDirs);
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28 | t.deepEqual(foundModuleDirNames, moduleDirs, 'all desired module dirs were found');
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29 | t.equal(keys(uniqueDirs).length, dirs.length, 'all dirs provided were unique');
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30 |
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31 | var counts = {};
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32 | for (var j = 0; j < foundModuleDirNames.length; ++j) {
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33 | counts[foundModuleDirs[j]] = true;
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34 | }
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35 | t.equal(keys(counts).length, 1, 'all found module directories had the same count');
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36 | };
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37 |
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38 | test('node-modules-paths', function (t) {
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39 | t.test('no options', function (t) {
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40 | var start = path.join(__dirname, 'resolver');
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41 | var dirs = nodeModulesPaths(start);
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42 |
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43 | verifyDirs(t, start, dirs);
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44 |
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45 | t.end();
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46 | });
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47 |
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48 | t.test('empty options', function (t) {
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49 | var start = path.join(__dirname, 'resolver');
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50 | var dirs = nodeModulesPaths(start, {});
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51 |
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52 | verifyDirs(t, start, dirs);
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53 |
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54 | t.end();
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55 | });
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56 |
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57 | t.test('with paths=array option', function (t) {
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58 | var start = path.join(__dirname, 'resolver');
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59 | var paths = ['a', 'b'];
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60 | var dirs = nodeModulesPaths(start, { paths: paths });
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61 |
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62 | verifyDirs(t, start, dirs, null, paths);
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63 |
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64 | t.end();
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65 | });
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66 |
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67 | t.test('with paths=function option', function (t) {
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68 | var paths = function paths(request, absoluteStart, getNodeModulesDirs, opts) {
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69 | return getNodeModulesDirs().concat(path.join(absoluteStart, 'not node modules', request));
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70 | };
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71 |
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72 | var start = path.join(__dirname, 'resolver');
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73 | var dirs = nodeModulesPaths(start, { paths: paths }, 'pkg');
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74 |
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75 | verifyDirs(t, start, dirs, null, [path.join(start, 'not node modules', 'pkg')]);
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76 |
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77 | t.end();
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78 | });
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79 |
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80 | t.test('with paths=function skipping node modules resolution', function (t) {
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81 | var paths = function paths(request, absoluteStart, getNodeModulesDirs, opts) {
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82 | return [];
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83 | };
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84 | var start = path.join(__dirname, 'resolver');
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85 | var dirs = nodeModulesPaths(start, { paths: paths });
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86 | t.deepEqual(dirs, [], 'no node_modules was computed');
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87 | t.end();
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88 | });
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89 |
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90 | t.test('with moduleDirectory option', function (t) {
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91 | var start = path.join(__dirname, 'resolver');
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92 | var moduleDirectory = 'not node modules';
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93 | var dirs = nodeModulesPaths(start, { moduleDirectory: moduleDirectory });
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94 |
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95 | verifyDirs(t, start, dirs, moduleDirectory);
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96 |
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97 | t.end();
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98 | });
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99 |
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100 | t.test('with 1 moduleDirectory and paths options', function (t) {
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101 | var start = path.join(__dirname, 'resolver');
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102 | var paths = ['a', 'b'];
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103 | var moduleDirectory = 'not node modules';
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104 | var dirs = nodeModulesPaths(start, { paths: paths, moduleDirectory: moduleDirectory });
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105 |
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106 | verifyDirs(t, start, dirs, moduleDirectory, paths);
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107 |
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108 | t.end();
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109 | });
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110 |
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111 | t.test('with 1+ moduleDirectory and paths options', function (t) {
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112 | var start = path.join(__dirname, 'resolver');
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113 | var paths = ['a', 'b'];
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114 | var moduleDirectories = ['not node modules', 'other modules'];
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115 | var dirs = nodeModulesPaths(start, { paths: paths, moduleDirectory: moduleDirectories });
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116 |
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117 | verifyDirs(t, start, dirs, moduleDirectories, paths);
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118 |
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119 | t.end();
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120 | });
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121 |
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122 | t.test('combine paths correctly on Windows', function (t) {
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123 | var start = 'C:\\Users\\username\\myProject\\src';
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124 | var paths = [];
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125 | var moduleDirectories = ['node_modules', start];
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126 | var dirs = nodeModulesPaths(start, { paths: paths, moduleDirectory: moduleDirectories });
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127 |
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128 | t.equal(dirs.indexOf(path.resolve(start)) > -1, true, 'should contain start dir');
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129 |
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130 | t.end();
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131 | });
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132 |
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133 | t.test('combine paths correctly on non-Windows', { skip: process.platform === 'win32' }, function (t) {
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134 | var start = '/Users/username/git/myProject/src';
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135 | var paths = [];
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136 | var moduleDirectories = ['node_modules', '/Users/username/git/myProject/src'];
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137 | var dirs = nodeModulesPaths(start, { paths: paths, moduleDirectory: moduleDirectories });
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138 |
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139 | t.equal(dirs.indexOf(path.resolve(start)) > -1, true, 'should contain start dir');
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140 |
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141 | t.end();
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142 | });
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143 | });
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