Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
1 | <?php |
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10 | class EntityContext extends Context |
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11 | { |
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12 | /** |
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13 | * @Given /^the following ([\w ]+):?$/ |
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14 | */ |
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15 | public function theFollowing($name, TableNode $table) |
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16 | { |
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17 | $entityName = $this->resolveEntity($name)->getName(); |
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18 | |||
19 | $rows = $table->getRows(); |
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20 | $headers = array_shift($rows); |
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21 | |||
22 | foreach ($rows as $row) { |
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23 | $values = array_combine($headers, $row); |
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24 | $entity = new $entityName; |
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25 | $reflection = new \ReflectionClass($entity); |
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26 | |||
27 | View Code Duplication | do { |
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28 | $this |
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29 | ->getRecordBag() |
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30 | ->getCollection($reflection->getName()) |
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31 | ->attach($entity, $values) |
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32 | ; |
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33 | $reflection = $reflection->getParentClass(); |
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34 | } while (false !== $reflection); |
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35 | |||
36 | $this |
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37 | ->getEntityHydrator() |
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38 | ->hydrate($this->getManager(), $entity, $values) |
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39 | ->completeRequired($this->getManager(), $entity) |
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40 | ; |
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41 | |||
42 | $this->getManager()->persist($entity); |
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43 | } |
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44 | |||
45 | $this->getManager()->flush(); |
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46 | } |
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47 | |||
48 | /** |
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49 | * @Given /^there (?:is|are) (\d+) ((?!\w* like)\w*)$/ |
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50 | */ |
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51 | public function thereIs($nbr, $name) |
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52 | { |
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53 | $entityName = $this->resolveEntity($name)->getName(); |
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54 | |||
55 | for ($i = 0; $i < $nbr; $i++) { |
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56 | $entity = new $entityName; |
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57 | $this |
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58 | ->getRecordBag() |
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59 | ->getCollection($entityName) |
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60 | ->attach($entity) |
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61 | ; |
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62 | $this |
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63 | ->getEntityHydrator() |
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64 | ->completeRequired($this->getManager(), $entity) |
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65 | ; |
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66 | |||
67 | $this->getManager()->persist($entity); |
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68 | } |
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69 | |||
70 | $this->getManager()->flush(); |
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71 | } |
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72 | |||
73 | /** |
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74 | * @Given /^there (?:is|are) (\d+) (.*) like:?$/ |
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75 | */ |
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76 | public function thereIsLikeFollowing($nbr, $name, TableNode $table) |
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77 | { |
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78 | $entityName = $this->resolveEntity($name)->getName(); |
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79 | |||
80 | $rows = $table->getRows(); |
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81 | $headers = array_shift($rows); |
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82 | |||
83 | for ($i = 0; $i < $nbr; $i++) { |
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84 | $row = $rows[$i % count($rows)]; |
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85 | $values = array_combine($headers, $row); |
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86 | $entity = new $entityName; |
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87 | $this |
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88 | ->getRecordBag() |
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89 | ->getCollection($entityName) |
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90 | ->attach($entity, $values) |
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91 | ; |
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92 | $this |
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93 | ->getEntityHydrator() |
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94 | ->hydrate($this->getManager(), $entity, $values) |
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95 | ->completeRequired($this->getManager(), $entity) |
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96 | ; |
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97 | |||
98 | $this->getManager()->persist($entity); |
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99 | } |
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100 | |||
101 | $this->getManager()->flush(); |
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102 | } |
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103 | |||
104 | /** |
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105 | * @Given /^(\w+) (.+) should have been (created|deleted)$/ |
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106 | */ |
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107 | public function entitiesShouldHaveBeen($expected, $entity, $state) |
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108 | { |
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109 | $expected = (int) $expected; |
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110 | |||
111 | $entityName = $this->resolveEntity($entity)->getName(); |
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112 | $collection = $this |
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113 | ->getRecordBag() |
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114 | ->getCollection($entityName) |
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115 | ; |
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116 | |||
117 | $records = array_map(function ($e) { return $e->getEntity(); }, $collection->all()); |
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118 | $entities = $this |
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119 | ->getManager() |
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120 | ->getRepository($entityName) |
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121 | ->createQueryBuilder('o') |
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122 | ->resetDQLParts() |
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123 | ->select('o') |
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124 | ->from($entityName, ' o') |
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125 | ->getQuery() |
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126 | ->getResult() |
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127 | ; |
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128 | |||
129 | if ($state === 'created') { |
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130 | $diff = $this->compareArray($entities, $records); |
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131 | foreach ($diff as $e) { |
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132 | $collection->attach($e); |
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133 | } |
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134 | } else { |
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135 | $diff = $this->compareArray($records, $entities); |
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136 | } |
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137 | $real = count($diff); |
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138 | |||
139 | $this |
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140 | ->getAsserter() |
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141 | ->assertEquals( |
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142 | $real, |
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143 | $expected, |
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144 | sprintf('%s %s should have been %s, %s actually', $expected, $entity, $state, $real) |
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145 | ) |
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146 | ; |
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147 | } |
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148 | |||
149 | /** |
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150 | * @Then /^should be (\d+) (.*) like:?$/ |
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151 | */ |
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152 | public function existLikeFollowing($nbr, $name, TableNode $table) |
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153 | { |
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154 | $entityName = $this->resolveEntity($name)->getName(); |
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155 | |||
156 | $rows = $table->getRows(); |
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157 | $headers = array_shift($rows); |
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158 | |||
159 | $accessor = PropertyAccess::createPropertyAccessor(); |
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160 | |||
161 | for ($i = 0; $i < $nbr; $i++) { |
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162 | $row = $rows[$i % count($rows)]; |
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163 | |||
164 | $values = array_combine($headers, $row); |
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165 | $object = $this->getManager() |
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166 | ->getRepository($entityName) |
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167 | ->findOneBy( |
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168 | $this->getEntityIdentifiers($entityName, $headers, $row) |
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169 | ); |
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170 | |||
171 | if (is_null($object)) { |
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172 | throw new \Exception(sprintf("There is not any object for the following identifiers: %s", json_encode($this->getEntityIdentifiers($entityName, $headers, $row)))); |
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173 | } |
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174 | $this->getManager()->refresh($object); |
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175 | |||
176 | foreach ($values as $key => $value) { |
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177 | if ($value != $accessor->getValue($object, $key) ) { |
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178 | throw new \Exception("The expected object does not have property $key with value $value"); |
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179 | } |
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180 | } |
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181 | } |
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182 | } |
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183 | |||
184 | /** |
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185 | * @BeforeScenario |
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186 | */ |
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187 | public function beforeScenario($event) |
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204 | |||
205 | /** |
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206 | * @AfterScenario |
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207 | */ |
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208 | public function afterScenario($event) |
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209 | { |
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210 | $this->getRecordBag()->clear(); |
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211 | $this->getUniqueCache()->clear(); |
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212 | $this->getManager()->clear(); |
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213 | } |
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214 | |||
215 | protected function compareArray(array $a1, array $a2) |
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216 | { |
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217 | $diff = []; |
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218 | foreach ($a1 as $e) { |
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219 | if (!in_array($e, $a2)) { |
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220 | $diff[] = $e; |
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221 | } |
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222 | } |
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223 | |||
224 | return $diff; |
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225 | } |
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226 | |||
227 | protected function getMetadata(EntityManager $entityManager) |
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231 | |||
232 | protected function getManagers() |
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233 | { |
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234 | return $this->get('doctrine')->getManagers(); |
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235 | } |
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236 | |||
237 | protected function getConnections() |
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241 | |||
242 | protected function getDefaultOptions() |
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243 | { |
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244 | return [ |
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248 | |||
249 | /** |
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250 | * @param string $entityName |
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251 | * @param array $headers Headers of the Behat TableNode |
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252 | * @param array $row current row if tge Behat TableNode |
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253 | * @return array ['id_column_A' => 'value', 'id_column_B' => 'value'] |
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254 | * @throws \Exception |
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255 | */ |
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256 | protected function getEntityIdentifiers($entityName, $headers, $row) |
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270 | } |
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271 |
This check looks for multiple assignments in successive lines of code. It will report an issue if the operators are not in a straight line.
To visualize
will produce issues in the first and second line, while this second example
will produce no issues.