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| 1 | +<?php |
| 2 | + |
| 3 | + |
| 4 | +namespace LaunchDarkly\Impl\Integrations\Tests; |
| 5 | + |
| 6 | +use LaunchDarkly\Impl\Model\FeatureFlag; |
| 7 | +use LaunchDarkly\Impl\Model\Segment; |
| 8 | +use PHPUnit\Framework\TestCase; |
| 9 | + |
| 10 | +/** |
| 11 | + * A base class providing standardized PHPUnit tests for database integrations. |
| 12 | + */ |
| 13 | +class DatabaseFeatureRequesterTestBase extends TestCase |
| 14 | +{ |
| 15 | + const TEST_PREFIX = 'testprefix'; |
| 16 | + |
| 17 | + /** |
| 18 | + * Override this method to remove all data from the underlying data store for |
| 19 | + * the specified prefix string. |
| 20 | + * |
| 21 | + * @param string $prefix the key prefix; may be empty/null, in which case we should |
| 22 | + * use whatever the default prefix is for this database integration. |
| 23 | + */ |
| 24 | + protected function clearExistingData(?string $prefix): void |
| 25 | + { |
| 26 | + throw new \RuntimeException("test class did not implement clearExistingData"); |
| 27 | + } |
| 28 | + |
| 29 | + /** |
| 30 | + * Override this method to create an instance of the feature requester class being |
| 31 | + * tested. |
| 32 | + * |
| 33 | + * @param string $prefix the key prefix; may be empty/null, in which case we should |
| 34 | + * use whatever the default prefix is for this database integration. |
| 35 | + * |
| 36 | + * @return an implementation instance |
| 37 | + */ |
| 38 | + protected function makeRequester(?string $prefix) |
| 39 | + { |
| 40 | + throw new \RuntimeException("test class did not implement makeRequester"); |
| 41 | + } |
| 42 | + |
| 43 | + /** |
| 44 | + * Override this method to insert an item into the data store. |
| 45 | + * |
| 46 | + * @param string $prefix the key prefix; may be empty/null, in which case we should |
| 47 | + * use whatever the default prefix is for this database integration. |
| 48 | + * @param string $namespace the namespace string, such as "features" |
| 49 | + * @param string $key the flag/segment key |
| 50 | + * @param int $version the version number |
| 51 | + * @param string $json the JSON data |
| 52 | + */ |
| 53 | + protected function putSerializedItem( |
| 54 | + ?string $prefix, |
| 55 | + string $namespace, |
| 56 | + string $key, |
| 57 | + int $version, |
| 58 | + string $json): void |
| 59 | + { |
| 60 | + throw new \RuntimeException("test class did not implement putSerializedItem"); |
| 61 | + } |
| 62 | + |
| 63 | + /** |
| 64 | + * @dataProvider prefixParameters |
| 65 | + */ |
| 66 | + public function testGetFeature(?string $prefix): void |
| 67 | + { |
| 68 | + $this->clearExistingData($prefix); |
| 69 | + $fr = $this->makeRequester($prefix); |
| 70 | + |
| 71 | + $flagKey = 'foo'; |
| 72 | + $flagVersion = 10; |
| 73 | + $flagJson = self::makeFlagJson($flagKey, $flagVersion); |
| 74 | + $this->putSerializedItem($prefix, 'features', $flagKey, $flagVersion, $flagJson); |
| 75 | + |
| 76 | + $fr = $this->makeRequester($prefix); |
| 77 | + $flag = $fr->getFeature($flagKey); |
| 78 | + |
| 79 | + $this->assertInstanceOf(FeatureFlag::class, $flag); |
| 80 | + $this->assertEquals($flagVersion, $flag->getVersion()); |
| 81 | + } |
| 82 | + |
| 83 | + /** |
| 84 | + * @dataProvider prefixParameters |
| 85 | + */ |
| 86 | + public function testGetMissingFeature(?string $prefix): void |
| 87 | + { |
| 88 | + $this->clearExistingData($prefix); |
| 89 | + $fr = $this->makeRequester($prefix); |
| 90 | + |
| 91 | + $flag = $fr->getFeature('unavailable'); |
| 92 | + $this->assertNull($flag); |
| 93 | + } |
| 94 | + |
| 95 | + /** |
| 96 | + * @dataProvider prefixParameters |
| 97 | + */ |
| 98 | + public function testGetDeletedFeature(?string $prefix): void |
| 99 | + { |
| 100 | + $this->clearExistingData($prefix); |
| 101 | + $fr = $this->makeRequester($prefix); |
| 102 | + |
| 103 | + $flagKey = 'foo'; |
| 104 | + $flagVersion = 10; |
| 105 | + $flagJson = self::makeFlagJson($flagKey, $flagVersion, true); |
| 106 | + $this->putSerializedItem($prefix, 'features', $flagKey, $flagVersion, $flagJson); |
| 107 | + |
| 108 | + $flag = $fr->getFeature($flagKey); |
| 109 | + |
| 110 | + $this->assertNull($flag); |
| 111 | + } |
| 112 | + |
| 113 | + /** |
| 114 | + * @dataProvider prefixParameters |
| 115 | + */ |
| 116 | + public function testGetAllFeatures(?string $prefix): void |
| 117 | + { |
| 118 | + $this->clearExistingData($prefix); |
| 119 | + $fr = $this->makeRequester($prefix); |
| 120 | + |
| 121 | + $flagKey1 = 'foo'; |
| 122 | + $flagKey2 = 'bar'; |
| 123 | + $flagKey3 = 'deleted'; |
| 124 | + $flagVersion = 10; |
| 125 | + $flagJson1 = self::makeFlagJson($flagKey1, $flagVersion); |
| 126 | + $flagJson2 = self::makeFlagJson($flagKey2, $flagVersion); |
| 127 | + $flagJson3 = self::makeFlagJson($flagKey3, $flagVersion, true); |
| 128 | + |
| 129 | + $this->putSerializedItem($prefix, 'features', $flagKey1, $flagVersion, $flagJson1); |
| 130 | + $this->putSerializedItem($prefix, 'features', $flagKey2, $flagVersion, $flagJson2); |
| 131 | + $this->putSerializedItem($prefix, 'features', $flagKey3, $flagVersion, $flagJson3); |
| 132 | + |
| 133 | + $flags = $fr->getAllFeatures(); |
| 134 | + |
| 135 | + $this->assertEquals(2, count($flags)); |
| 136 | + $flag1 = $flags[$flagKey1]; |
| 137 | + $this->assertEquals($flagKey1, $flag1->getKey()); |
| 138 | + $this->assertEquals($flagVersion, $flag1->getVersion()); |
| 139 | + $flag2 = $flags[$flagKey2]; |
| 140 | + $this->assertEquals($flagKey2, $flag2->getKey()); |
| 141 | + $this->assertEquals($flagVersion, $flag2->getVersion()); |
| 142 | + } |
| 143 | + |
| 144 | + /** |
| 145 | + * @dataProvider prefixParameters |
| 146 | + */ |
| 147 | + public function testAllFeaturesWithEmptyStore(?string $prefix): void |
| 148 | + { |
| 149 | + $this->clearExistingData($prefix); |
| 150 | + $fr = $this->makeRequester($prefix); |
| 151 | + |
| 152 | + $flags = $fr->getAllFeatures(); |
| 153 | + $this->assertEquals(array(), $flags); |
| 154 | + } |
| 155 | + |
| 156 | + /** |
| 157 | + * @dataProvider prefixParameters |
| 158 | + */ |
| 159 | + public function testGetSegment(?string $prefix): void |
| 160 | + { |
| 161 | + $this->clearExistingData($prefix); |
| 162 | + $fr = $this->makeRequester($prefix); |
| 163 | + |
| 164 | + $segKey = 'foo'; |
| 165 | + $segVersion = 10; |
| 166 | + $segJson = self::makeSegmentJson($segKey, $segVersion); |
| 167 | + $this->putSerializedItem($prefix, 'segments', $segKey, $segVersion, $segJson); |
| 168 | + |
| 169 | + $segment = $fr->getSegment($segKey); |
| 170 | + |
| 171 | + $this->assertInstanceOf(Segment::class, $segment); |
| 172 | + $this->assertEquals($segVersion, $segment->getVersion()); |
| 173 | + } |
| 174 | + |
| 175 | + /** |
| 176 | + * @dataProvider prefixParameters |
| 177 | + */ |
| 178 | + public function testGetMissingSegment(?string $prefix): void |
| 179 | + { |
| 180 | + $this->clearExistingData($prefix); |
| 181 | + $fr = $this->makeRequester($prefix); |
| 182 | + |
| 183 | + $segment = $fr->getSegment('unavailable'); |
| 184 | + $this->assertNull($segment); |
| 185 | + } |
| 186 | + |
| 187 | + /** |
| 188 | + * @dataProvider prefixParameters |
| 189 | + */ |
| 190 | + public function testGetDeletedSegment(?string $prefix): void |
| 191 | + { |
| 192 | + $this->clearExistingData($prefix); |
| 193 | + $fr = $this->makeRequester($prefix); |
| 194 | + |
| 195 | + $segKey = 'foo'; |
| 196 | + $segVersion = 10; |
| 197 | + $segJson = self::makeSegmentJson($segKey, $segVersion, true); |
| 198 | + $this->putSerializedItem($prefix, 'segments', $segKey, $segVersion, $segJson); |
| 199 | + |
| 200 | + $segment = $fr->getSegment($segKey); |
| 201 | + |
| 202 | + $this->assertNull($segment); |
| 203 | + } |
| 204 | + |
| 205 | + public function testPrefixIndependence(): void |
| 206 | + { |
| 207 | + $prefix1 = 'prefix1'; |
| 208 | + $prefix2 = 'prefix2'; |
| 209 | + |
| 210 | + $this->clearExistingData(null); |
| 211 | + $this->clearExistingData($prefix1); |
| 212 | + $this->clearExistingData($prefix2); |
| 213 | + |
| 214 | + $flagKey = 'my-flag'; |
| 215 | + $segmentKey = 'my-segment'; |
| 216 | + $version0 = 10; |
| 217 | + $version1 = 11; |
| 218 | + $version2 = 12; |
| 219 | + $this->setupForPrefix(null, $flagKey, $segmentKey, $version0); |
| 220 | + $this->setupForPrefix($prefix1, $flagKey, $segmentKey, $version1); |
| 221 | + $this->setupForPrefix($prefix2, $flagKey, $segmentKey, $version2); |
| 222 | + |
| 223 | + $this->verifyForPrefix($this->makeRequester(null), $flagKey, $segmentKey, $version0); |
| 224 | + $this->verifyForPrefix($this->makeRequester(''), $flagKey, $segmentKey, $version0); |
| 225 | + $this->verifyForPrefix($this->makeRequester($prefix1), $flagKey, $segmentKey, $version1); |
| 226 | + $this->verifyForPrefix($this->makeRequester($prefix2), $flagKey, $segmentKey, $version2); |
| 227 | + } |
| 228 | + |
| 229 | + private function setupForPrefix(?string $prefix, string $flagKey, string $segmentKey, int $flagVersion): void |
| 230 | + { |
| 231 | + $segmentVersion = $flagVersion * 2; |
| 232 | + $this->putSerializedItem($prefix, 'features', $flagKey, $flagVersion, |
| 233 | + self::makeFlagJson($flagKey, $flagVersion)); |
| 234 | + $this->putSerializedItem($prefix, 'segments', $segmentKey, $segmentVersion, |
| 235 | + self::makeSegmentJson($flagKey, $segmentVersion)); |
| 236 | + } |
| 237 | + |
| 238 | + private function verifyForPrefix($fr, string $flagKey, string $segmentKey, int $flagVersion): void |
| 239 | + { |
| 240 | + $segmentVersion = $flagVersion * 2; |
| 241 | + |
| 242 | + $flag = $fr->getFeature($flagKey); |
| 243 | + $this->assertNotNull($flag); |
| 244 | + $this->assertEquals($flagVersion, $flag->getVersion()); |
| 245 | + |
| 246 | + $flags = $fr->getAllFeatures(); |
| 247 | + $this->assertEquals(1, count($flags)); |
| 248 | + $this->assertEquals($flagVersion, $flags[$flagKey]->getVersion()); |
| 249 | + |
| 250 | + $segment = $fr->getSegment($segmentKey); |
| 251 | + $this->assertNotNull($segment); |
| 252 | + $this->assertEquals($segmentVersion, $segment->getVersion()); |
| 253 | + } |
| 254 | + |
| 255 | + /** |
| 256 | + * @return array<int,mixed> |
| 257 | + */ |
| 258 | + public function prefixParameters(): array |
| 259 | + { |
| 260 | + return [ |
| 261 | + [ self::TEST_PREFIX ], |
| 262 | + [ '' ], |
| 263 | + [ null ] |
| 264 | + ]; |
| 265 | + } |
| 266 | + |
| 267 | + private static function makeFlagJson(string $key, int $version, bool $deleted = false): string|bool |
| 268 | + { |
| 269 | + return json_encode(array( |
| 270 | + 'key' => $key, |
| 271 | + 'version' => $version, |
| 272 | + 'on' => true, |
| 273 | + 'prerequisites' => [], |
| 274 | + 'salt' => '', |
| 275 | + 'targets' => [], |
| 276 | + 'rules' => [], |
| 277 | + 'fallthrough' => [ |
| 278 | + 'variation' => 0, |
| 279 | + ], |
| 280 | + 'offVariation' => null, |
| 281 | + 'variations' => [ |
| 282 | + true, |
| 283 | + false, |
| 284 | + ], |
| 285 | + 'deleted' => $deleted |
| 286 | + )); |
| 287 | + } |
| 288 | + |
| 289 | + private static function makeSegmentJson(string $key, int $version, bool $deleted = false): string|bool |
| 290 | + { |
| 291 | + return json_encode(array( |
| 292 | + 'key' => $key, |
| 293 | + 'version' => $version, |
| 294 | + 'included' => array(), |
| 295 | + 'excluded' => array(), |
| 296 | + 'rules' => [], |
| 297 | + 'salt' => '', |
| 298 | + 'deleted' => $deleted |
| 299 | + )); |
| 300 | + } |
| 301 | +} |
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