| Total Complexity | 52 | 
| Total Lines | 721 | 
| Duplicated Lines | 0 % | 
| Changes | 5 | ||
| Bugs | 0 | Features | 3 | 
Complex classes like DeferTest often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use DeferTest, and based on these observations, apply Extract Interface, too.
| 1 | <?php  | 
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| 20 | class DeferTest extends TestCase  | 
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| 21 | { | 
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| 22 | public function testInterface()  | 
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| 23 |     { | 
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| 24 | $this->assertInstanceOf(  | 
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| 25 | Implementation::class,  | 
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| 26 |             new Defer('mixed', (fn() => yield)()), | 
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| 27 | );  | 
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| 28 | }  | 
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| 29 | |||
| 30 | public function testGeneratorNotLoadedAtInstanciation()  | 
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| 39 | }  | 
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| 40 | |||
| 41 | public function testThrowWhenYieldingInvalidType()  | 
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| 42 |     { | 
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| 43 | $this->expectException(\TypeError::class);  | 
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| 44 |         $this->expectExceptionMessage('Argument 1 must be of type int, string given'); | 
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| 45 | |||
| 46 |         $sequence = new Defer('int', (function() { | 
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| 47 | yield '1';  | 
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| 48 | })());  | 
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| 49 | \iterator_to_array($sequence->iterator());  | 
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| 50 | }  | 
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| 51 | |||
| 52 | public function testType()  | 
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| 53 |     { | 
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| 54 |         $this->assertSame('int', (new Defer('int', (fn() => yield)()))->type()); | 
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| 55 | }  | 
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| 56 | |||
| 57 | public function testSize()  | 
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| 58 |     { | 
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| 59 |         $sequence = new Defer('int', (function() { | 
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| 60 | yield 1;  | 
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| 61 | yield 1;  | 
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| 62 | })());  | 
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| 63 | |||
| 64 | $this->assertSame(2, $sequence->size());  | 
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| 65 | $this->assertSame(2, $sequence->count());  | 
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| 66 | }  | 
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| 67 | |||
| 68 | public function testIterator()  | 
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| 79 | );  | 
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| 80 | }  | 
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| 81 | |||
| 82 | public function testGet()  | 
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| 83 |     { | 
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| 84 |         $sequence = new Defer('int', (function() { | 
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| 85 | yield 1;  | 
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| 86 | yield 42;  | 
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| 87 | yield 3;  | 
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| 88 | })());  | 
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| 89 | |||
| 90 | $this->assertSame(42, $sequence->get(1));  | 
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| 91 | }  | 
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| 92 | |||
| 93 | public function testThrowWhenIndexNotFound()  | 
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| 94 |     { | 
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| 95 | $this->expectException(OutOfBoundException::class);  | 
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| 96 | |||
| 97 |         $sequence = new Defer('int', (function() { | 
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| 98 |             if (false) { | 
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| 99 | yield 1;  | 
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| 100 | }  | 
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| 101 | })());  | 
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| 102 | |||
| 103 | $sequence->get(0);  | 
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| 104 | }  | 
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| 105 | |||
| 106 | public function testDiff()  | 
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| 107 |     { | 
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| 108 | $aLoaded = false;  | 
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| 109 | $bLoaded = false;  | 
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| 110 |         $a = new Defer('int', (function() use (&$aLoaded) { | 
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| 111 | yield 1;  | 
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| 112 | yield 2;  | 
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| 113 | $aLoaded = true;  | 
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| 114 | })());  | 
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| 115 |         $b = new Defer('int', (function() use (&$bLoaded) { | 
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| 116 | yield 2;  | 
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| 117 | yield 3;  | 
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| 118 | $bLoaded = true;  | 
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| 119 | })());  | 
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| 120 | $c = $a->diff($b);  | 
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| 121 | |||
| 122 | $this->assertFalse($aLoaded);  | 
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| 123 | $this->assertFalse($bLoaded);  | 
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| 124 | $this->assertSame([1, 2], \iterator_to_array($a->iterator()));  | 
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| 125 | $this->assertSame([2, 3], \iterator_to_array($b->iterator()));  | 
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| 126 | $this->assertInstanceOf(Defer::class, $c);  | 
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| 127 | $this->assertSame([1], \iterator_to_array($c->iterator()));  | 
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| 128 | $this->assertTrue($aLoaded);  | 
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| 129 | $this->assertTrue($bLoaded);  | 
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| 130 | }  | 
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| 131 | |||
| 132 | public function testDistinct()  | 
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| 148 | }  | 
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| 149 | |||
| 150 | public function testDrop()  | 
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| 151 |     { | 
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| 152 | $loaded = false;  | 
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| 153 |         $a = new Defer('int', (function() use (&$loaded) { | 
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| 154 | yield 1;  | 
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| 155 | yield 2;  | 
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| 156 | yield 3;  | 
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| 157 | yield 4;  | 
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| 158 | $loaded = true;  | 
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| 159 | })());  | 
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| 160 | $b = $a->drop(2);  | 
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| 161 | |||
| 162 | $this->assertFalse($loaded);  | 
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| 163 | $this->assertSame([1, 2, 3, 4], \iterator_to_array($a->iterator()));  | 
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| 164 | $this->assertInstanceOf(Defer::class, $b);  | 
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| 165 | $this->assertSame([3, 4], \iterator_to_array($b->iterator()));  | 
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| 166 | $this->assertTrue($loaded);  | 
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| 167 | }  | 
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| 168 | |||
| 169 | public function testDropEnd()  | 
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| 170 |     { | 
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| 171 |         $a = new Defer('int', (function() { | 
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| 172 | yield 1;  | 
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| 173 | yield 2;  | 
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| 174 | yield 3;  | 
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| 175 | yield 4;  | 
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| 176 | })());  | 
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| 177 | $b = $a->dropEnd(2);  | 
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| 178 | |||
| 179 | $this->assertSame([1, 2, 3, 4], \iterator_to_array($a->iterator()));  | 
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| 180 | $this->assertInstanceOf(Implementation::class, $b);  | 
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| 181 | $this->assertSame([1, 2], \iterator_to_array($b->iterator()));  | 
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| 182 | }  | 
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| 183 | |||
| 184 | public function testEquals()  | 
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| 185 |     { | 
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| 186 |         $a = new Defer('int', (function() { | 
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| 187 | yield 1;  | 
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| 188 | yield 2;  | 
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| 189 | })());  | 
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| 190 |         $b = new Defer('int', (function() { | 
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| 191 | yield 1;  | 
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| 192 | yield 2;  | 
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| 193 | yield 3;  | 
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| 194 | })());  | 
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| 195 | $this->assertTrue($a->equals($a));  | 
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| 196 | $this->assertFalse($a->equals($b));  | 
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| 197 | }  | 
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| 198 | |||
| 199 | public function testFilter()  | 
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| 200 |     { | 
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| 201 | $loaded = false;  | 
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| 202 |         $a = new Defer('int', (function() use (&$loaded) { | 
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| 203 | yield 1;  | 
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| 204 | yield 2;  | 
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| 205 | yield 3;  | 
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| 206 | yield 4;  | 
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| 207 | $loaded = true;  | 
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| 208 | })());  | 
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| 209 | $b = $a->filter(fn($i) => $i % 2 === 0);  | 
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| 210 | |||
| 211 | $this->assertFalse($loaded);  | 
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| 212 | $this->assertSame([1, 2, 3, 4], \iterator_to_array($a->iterator()));  | 
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| 213 | $this->assertInstanceOf(Defer::class, $b);  | 
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| 214 | $this->assertSame([2, 4], \iterator_to_array($b->iterator()));  | 
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| 215 | $this->assertTrue($loaded);  | 
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| 216 | }  | 
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| 217 | |||
| 218 | public function testForeach()  | 
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| 219 |     { | 
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| 220 |         $sequence = new Defer('int', (function() { | 
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| 221 | yield 1;  | 
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| 222 | yield 2;  | 
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| 223 | yield 3;  | 
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| 224 | yield 4;  | 
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| 225 | })());  | 
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| 226 | $calls = 0;  | 
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| 227 | $sum = 0;  | 
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| 228 | |||
| 229 |         $this->assertNull($sequence->foreach(function($i) use (&$calls, &$sum) { | 
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| 230 | ++$calls;  | 
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| 231 | $sum += $i;  | 
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| 232 | }));  | 
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| 233 | $this->assertSame(4, $calls);  | 
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| 234 | $this->assertSame(10, $sum);  | 
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| 235 | }  | 
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| 236 | |||
| 237 | public function testThrowWhenTryingToGroupEmptySequence()  | 
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| 238 |     { | 
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| 239 | $this->expectException(CannotGroupEmptyStructure::class);  | 
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| 240 | |||
| 241 |         $sequence = new Defer('int', (function() { | 
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| 242 |             if (false) { | 
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| 243 | yield 1;  | 
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| 244 | }  | 
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| 245 | })());  | 
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| 246 | |||
| 247 | $sequence->groupBy(fn($i) => $i);  | 
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| 248 | }  | 
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| 249 | |||
| 250 | public function testGroupBy()  | 
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| 251 |     { | 
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| 252 |         $sequence = new Defer('int', (function() { | 
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| 253 | yield 1;  | 
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| 254 | yield 2;  | 
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| 255 | yield 3;  | 
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| 256 | yield 4;  | 
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| 257 | })());  | 
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| 258 | $groups = $sequence->groupBy(fn($i) => $i % 2);  | 
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| 259 | |||
| 260 | $this->assertSame([1, 2, 3, 4], \iterator_to_array($sequence->iterator()));  | 
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| 261 | $this->assertInstanceOf(Map::class, $groups);  | 
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| 262 |         $this->assertTrue($groups->isOfType('int', Sequence::class)); | 
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| 263 | $this->assertCount(2, $groups);  | 
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| 264 |         $this->assertTrue($groups->get(0)->isOfType('int')); | 
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| 265 |         $this->assertTrue($groups->get(1)->isOfType('int')); | 
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| 266 | $this->assertSame([2, 4], unwrap($groups->get(0)));  | 
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| 267 | $this->assertSame([1, 3], unwrap($groups->get(1)));  | 
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| 268 | }  | 
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| 269 | |||
| 270 | public function testThrowWhenTryingToAccessFirstElementOnEmptySequence()  | 
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| 271 |     { | 
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| 272 | $this->expectException(OutOfBoundException::class);  | 
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| 273 | |||
| 274 |         $sequence = new Defer('int', (function() { | 
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| 275 |             if (false) { | 
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| 276 | yield 1;  | 
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| 277 | }  | 
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| 278 | })());  | 
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| 279 | |||
| 280 | $sequence->first();  | 
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| 281 | }  | 
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| 282 | |||
| 283 | public function testThrowWhenTryingToAccessLastElementOnEmptySequence()  | 
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| 284 |     { | 
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| 285 | $this->expectException(OutOfBoundException::class);  | 
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| 286 | |||
| 287 |         $sequence = new Defer('int', (function() { | 
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| 288 |             if (false) { | 
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| 289 | yield 1;  | 
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| 290 | }  | 
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| 291 | })());  | 
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| 292 | |||
| 293 | $sequence->last();  | 
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| 294 | }  | 
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| 295 | |||
| 296 | public function testFirst()  | 
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| 297 |     { | 
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| 298 |         $sequence = new Defer('int', (function() { | 
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| 299 | yield 2;  | 
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| 300 | yield 3;  | 
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| 301 | yield 4;  | 
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| 302 | })());  | 
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| 303 | |||
| 304 | $this->assertSame(2, $sequence->first());  | 
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| 305 | }  | 
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| 306 | |||
| 307 | public function testLast()  | 
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| 308 |     { | 
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| 309 |         $sequence = new Defer('int', (function() { | 
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| 310 | yield 1;  | 
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| 311 | yield 2;  | 
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| 312 | yield 3;  | 
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| 313 | })());  | 
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| 314 | |||
| 315 | $this->assertSame(3, $sequence->last());  | 
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| 316 | }  | 
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| 317 | |||
| 318 | public function testContains()  | 
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| 319 |     { | 
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| 320 |         $sequence = new Defer('int', (function() { | 
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| 321 | yield 1;  | 
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| 322 | yield 2;  | 
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| 323 | yield 3;  | 
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| 324 | })());  | 
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| 325 | |||
| 326 | $this->assertTrue($sequence->contains(2));  | 
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| 327 | $this->assertFalse($sequence->contains(4));  | 
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| 328 | }  | 
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| 329 | |||
| 330 | public function testIndexOf()  | 
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| 331 |     { | 
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| 332 |         $sequence = new Defer('int', (function() { | 
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| 333 | yield 1;  | 
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| 334 | yield 2;  | 
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| 335 | yield 4;  | 
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| 336 | })());  | 
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| 337 | |||
| 338 | $this->assertSame(1, $sequence->indexOf(2));  | 
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| 339 | $this->assertSame(2, $sequence->indexOf(4));  | 
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| 340 | }  | 
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| 341 | |||
| 342 | public function testThrowWhenTryingToAccessIndexOfUnknownValue()  | 
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| 343 |     { | 
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| 344 | $this->expectException(ElementNotFound::class);  | 
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| 345 | |||
| 346 |         $sequence = new Defer('int', (function() { | 
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| 347 |             if (false) { | 
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| 348 | yield 1;  | 
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| 349 | }  | 
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| 350 | })());  | 
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| 351 | |||
| 352 | $sequence->indexOf(1);  | 
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| 353 | }  | 
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| 354 | |||
| 355 | public function testIndices()  | 
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| 356 |     { | 
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| 357 | $loaded = false;  | 
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| 358 |         $a = new Defer('string', (function() use (&$loaded) { | 
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| 359 | yield '1';  | 
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| 360 | yield '2';  | 
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| 361 | $loaded = true;  | 
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| 362 | })());  | 
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| 363 | $b = $a->indices();  | 
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| 364 | |||
| 365 | $this->assertFalse($loaded);  | 
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| 366 | $this->assertSame(['1', '2'], \iterator_to_array($a->iterator()));  | 
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| 367 | $this->assertInstanceOf(Defer::class, $b);  | 
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| 368 |         $this->assertSame('int', $b->type()); | 
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| 369 | $this->assertSame([0, 1], \iterator_to_array($b->iterator()));  | 
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| 370 | $this->assertTrue($loaded);  | 
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| 371 | }  | 
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| 372 | |||
| 373 | public function testIndicesOnEmptySequence()  | 
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| 374 |     { | 
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| 375 |         $a = new Defer('string', (function() { | 
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| 376 |             if (false) { | 
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| 377 | yield 1;  | 
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| 378 | }  | 
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| 379 | })());  | 
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| 380 | $b = $a->indices();  | 
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| 381 | |||
| 382 | $this->assertSame([], \iterator_to_array($a->iterator()));  | 
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| 383 | $this->assertInstanceOf(Defer::class, $b);  | 
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| 384 |         $this->assertSame('int', $b->type()); | 
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| 385 | $this->assertSame([], \iterator_to_array($b->iterator()));  | 
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| 386 | }  | 
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| 387 | |||
| 388 | public function testMap()  | 
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| 389 |     { | 
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| 390 | $loaded = false;  | 
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| 391 |         $a = new Defer('int', (function() use (&$loaded) { | 
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| 392 | yield 1;  | 
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| 393 | yield 2;  | 
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| 394 | yield 3;  | 
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| 395 | $loaded = true;  | 
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| 396 | })());  | 
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| 397 | $b = $a->map(fn($i) => $i * 2);  | 
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| 398 | |||
| 399 | $this->assertFalse($loaded);  | 
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| 400 | $this->assertSame([1, 2, 3], \iterator_to_array($a->iterator()));  | 
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| 401 | $this->assertInstanceOf(Defer::class, $b);  | 
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| 402 | $this->assertSame([2, 4, 6], \iterator_to_array($b->iterator()));  | 
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| 403 | $this->assertTrue($loaded);  | 
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| 404 | }  | 
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| 405 | |||
| 406 | public function testThrowWhenTryingToModifyTheTypeWhenMapping()  | 
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| 407 |     { | 
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| 408 | $this->expectException(\TypeError::class);  | 
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| 409 |         $this->expectExceptionMessage('Argument 1 must be of type int, string given'); | 
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| 410 | |||
| 411 |         $sequence = new Defer('int', (function() { | 
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| 412 | yield 1;  | 
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| 413 | yield 2;  | 
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| 414 | yield 3;  | 
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| 415 | })());  | 
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| 416 | |||
| 417 | \iterator_to_array($sequence->map(fn($i) => (string) $i)->iterator());  | 
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| 418 | }  | 
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| 419 | |||
| 420 | public function testPad()  | 
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| 438 | }  | 
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| 439 | |||
| 440 | public function testPartition()  | 
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| 441 |     { | 
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| 442 |         $sequence = new Defer('int', (function() { | 
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| 443 | yield 1;  | 
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| 444 | yield 2;  | 
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| 445 | yield 3;  | 
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| 446 | yield 4;  | 
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| 447 | })());  | 
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| 448 | $partition = $sequence->partition(fn($i) => $i % 2 === 0);  | 
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| 449 | |||
| 450 | $this->assertSame([1, 2, 3, 4], \iterator_to_array($sequence->iterator()));  | 
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| 451 | $this->assertInstanceOf(Map::class, $partition);  | 
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| 452 |         $this->assertTrue($partition->isOfType('bool', Sequence::class)); | 
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| 453 | $this->assertCount(2, $partition);  | 
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| 454 |         $this->assertTrue($partition->get(true)->isOfType('int')); | 
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| 455 |         $this->assertTrue($partition->get(false)->isOfType('int')); | 
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| 456 | $this->assertSame([2, 4], unwrap($partition->get(true)));  | 
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| 457 | $this->assertSame([1, 3], unwrap($partition->get(false)));  | 
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| 458 | }  | 
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| 459 | |||
| 460 | public function testSlice()  | 
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| 461 |     { | 
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| 462 | $loaded = false;  | 
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| 463 |         $a = new Defer('int', (function() use (&$loaded) { | 
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| 464 | yield 2;  | 
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| 465 | yield 3;  | 
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| 466 | yield 4;  | 
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| 467 | yield 5;  | 
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| 468 | $loaded = true;  | 
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| 469 | })());  | 
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| 470 | $b = $a->slice(1, 3);  | 
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| 471 | |||
| 472 | $this->assertFalse($loaded);  | 
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| 473 | $this->assertSame([2, 3, 4, 5], \iterator_to_array($a->iterator()));  | 
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| 474 | $this->assertInstanceOf(Defer::class, $b);  | 
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| 475 | $this->assertSame([3, 4], \iterator_to_array($b->iterator()));  | 
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| 476 | $this->assertTrue($loaded);  | 
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| 477 | }  | 
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| 478 | |||
| 479 | public function testSplitAt()  | 
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| 480 |     { | 
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| 481 |         $sequence = new Defer('int', (function() { | 
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| 482 | yield 2;  | 
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| 483 | yield 3;  | 
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| 484 | yield 4;  | 
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| 485 | yield 5;  | 
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| 486 | })());  | 
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| 487 | $parts = $sequence->splitAt(2);  | 
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| 488 | |||
| 489 | $this->assertSame([2, 3, 4, 5], \iterator_to_array($sequence->iterator()));  | 
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| 490 | $this->assertInstanceOf(Sequence::class, $parts);  | 
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| 491 | $this->assertTrue($parts->isOfType(Sequence::class));  | 
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| 492 | $this->assertCount(2, $parts);  | 
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| 493 |         $this->assertTrue($parts->first()->isOfType('int')); | 
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| 494 |         $this->assertTrue($parts->last()->isOfType('int')); | 
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| 495 | $this->assertSame([2, 3], unwrap($parts->first()));  | 
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| 496 | $this->assertSame([4, 5], unwrap($parts->last()));  | 
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| 497 | }  | 
            ||
| 498 | |||
| 499 | public function testTake()  | 
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| 500 |     { | 
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| 501 | $loaded = false;  | 
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| 502 |         $a = new Defer('int', (function() use (&$loaded) { | 
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| 503 | yield 2;  | 
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| 504 | yield 3;  | 
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| 505 | yield 4;  | 
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| 506 | $loaded = true;  | 
            ||
| 507 | })());  | 
            ||
| 508 | $b = $a->take(2);  | 
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| 509 | |||
| 510 | $this->assertFalse($loaded);  | 
            ||
| 511 | $this->assertSame([2, 3, 4], \iterator_to_array($a->iterator()));  | 
            ||
| 512 | $this->assertInstanceOf(Defer::class, $b);  | 
            ||
| 513 | $this->assertSame([2, 3], \iterator_to_array($b->iterator()));  | 
            ||
| 514 | $this->assertTrue($loaded);  | 
            ||
| 515 | }  | 
            ||
| 516 | |||
| 517 | public function testTakeEnd()  | 
            ||
| 518 |     { | 
            ||
| 519 |         $a = new Defer('int', (function() { | 
            ||
| 520 | yield 2;  | 
            ||
| 521 | yield 3;  | 
            ||
| 522 | yield 4;  | 
            ||
| 523 | })());  | 
            ||
| 524 | $b = $a->takeEnd(2);  | 
            ||
| 525 | |||
| 526 | $this->assertSame([2, 3, 4], \iterator_to_array($a->iterator()));  | 
            ||
| 527 | $this->assertInstanceOf(Implementation::class, $b);  | 
            ||
| 528 | $this->assertSame([3, 4], \iterator_to_array($b->iterator()));  | 
            ||
| 529 | }  | 
            ||
| 530 | |||
| 531 | public function testAppend()  | 
            ||
| 532 |     { | 
            ||
| 533 | $aLoaded = false;  | 
            ||
| 534 | $bLoaded = false;  | 
            ||
| 535 |         $a = new Defer('int', (function() use (&$aLoaded) { | 
            ||
| 536 | yield 1;  | 
            ||
| 537 | yield 2;  | 
            ||
| 538 | $aLoaded = true;  | 
            ||
| 539 | })());  | 
            ||
| 540 |         $b = new Defer('int', (function() use (&$bLoaded) { | 
            ||
| 541 | yield 3;  | 
            ||
| 542 | yield 4;  | 
            ||
| 543 | $bLoaded = true;  | 
            ||
| 544 | })());  | 
            ||
| 545 | $c = $a->append($b);  | 
            ||
| 546 | |||
| 547 | $this->assertFalse($aLoaded);  | 
            ||
| 548 | $this->assertFalse($bLoaded);  | 
            ||
| 549 | $this->assertSame([1, 2], \iterator_to_array($a->iterator()));  | 
            ||
| 550 | $this->assertSame([3, 4], \iterator_to_array($b->iterator()));  | 
            ||
| 551 | $this->assertInstanceOf(Defer::class, $c);  | 
            ||
| 552 | $this->assertSame([1, 2, 3, 4], \iterator_to_array($c->iterator()));  | 
            ||
| 553 | $this->assertTrue($aLoaded);  | 
            ||
| 554 | $this->assertTrue($bLoaded);  | 
            ||
| 555 | }  | 
            ||
| 556 | |||
| 557 | public function testIntersect()  | 
            ||
| 558 |     { | 
            ||
| 559 | $aLoaded = false;  | 
            ||
| 560 | $bLoaded = false;  | 
            ||
| 561 |         $a = new Defer('int', (function() use (&$aLoaded) { | 
            ||
| 562 | yield 1;  | 
            ||
| 563 | yield 2;  | 
            ||
| 564 | $aLoaded = true;  | 
            ||
| 565 | })());  | 
            ||
| 566 |         $b = new Defer('int', (function() use (&$bLoaded) { | 
            ||
| 567 | yield 2;  | 
            ||
| 568 | yield 3;  | 
            ||
| 569 | $bLoaded = true;  | 
            ||
| 570 | })());  | 
            ||
| 571 | $c = $a->intersect($b);  | 
            ||
| 572 | |||
| 573 | $this->assertFalse($aLoaded);  | 
            ||
| 574 | $this->assertFalse($bLoaded);  | 
            ||
| 575 | $this->assertSame([1, 2], \iterator_to_array($a->iterator()));  | 
            ||
| 576 | $this->assertSame([2, 3], \iterator_to_array($b->iterator()));  | 
            ||
| 577 | $this->assertInstanceOf(Defer::class, $c);  | 
            ||
| 578 | $this->assertSame([2], \iterator_to_array($c->iterator()));  | 
            ||
| 579 | $this->assertTrue($aLoaded);  | 
            ||
| 580 | $this->assertTrue($bLoaded);  | 
            ||
| 581 | }  | 
            ||
| 582 | |||
| 583 | public function testAdd()  | 
            ||
| 584 |     { | 
            ||
| 585 | $loaded = false;  | 
            ||
| 586 |         $a = new Defer('int', (function() use (&$loaded) { | 
            ||
| 587 | yield 1;  | 
            ||
| 588 | $loaded = true;  | 
            ||
| 589 | })());  | 
            ||
| 590 | $b = ($a)(2);  | 
            ||
| 591 | |||
| 592 | $this->assertFalse($loaded);  | 
            ||
| 593 | $this->assertSame([1], \iterator_to_array($a->iterator()));  | 
            ||
| 594 | $this->assertInstanceOf(Defer::class, $b);  | 
            ||
| 595 | $this->assertSame([1, 2], \iterator_to_array($b->iterator()));  | 
            ||
| 596 | $this->assertTrue($loaded);  | 
            ||
| 597 | }  | 
            ||
| 598 | |||
| 599 | public function testSort()  | 
            ||
| 600 |     { | 
            ||
| 601 |         $a = new Defer('int', (function() { | 
            ||
| 602 | yield 1;  | 
            ||
| 603 | yield 4;  | 
            ||
| 604 | yield 3;  | 
            ||
| 605 | yield 2;  | 
            ||
| 606 | })());  | 
            ||
| 607 | $b = $a->sort(fn($a, $b) => $a > $b);  | 
            ||
| 608 | |||
| 609 | $this->assertSame([1, 4, 3, 2], \iterator_to_array($a->iterator()));  | 
            ||
| 610 | $this->assertInstanceOf(Defer::class, $b);  | 
            ||
| 611 | $this->assertSame([1, 2, 3, 4], \iterator_to_array($b->iterator()));  | 
            ||
| 612 | }  | 
            ||
| 613 | |||
| 614 | public function testReduce()  | 
            ||
| 615 |     { | 
            ||
| 616 |         $sequence = new Defer('int', (function() { | 
            ||
| 617 | yield 1;  | 
            ||
| 618 | yield 2;  | 
            ||
| 619 | yield 3;  | 
            ||
| 620 | yield 4;  | 
            ||
| 621 | })());  | 
            ||
| 622 | |||
| 623 | $this->assertSame(10, $sequence->reduce(0, fn($sum, $i) => $sum + $i));  | 
            ||
| 624 | }  | 
            ||
| 625 | |||
| 626 | public function testClear()  | 
            ||
| 627 |     { | 
            ||
| 628 | $loaded = false;  | 
            ||
| 629 |         $a = new Defer('int', (function() use (&$loaded) { | 
            ||
| 630 | yield 1;  | 
            ||
| 631 | yield 2;  | 
            ||
| 632 | $loaded = true;  | 
            ||
| 633 | })());  | 
            ||
| 634 | $b = $a->clear();  | 
            ||
| 635 | |||
| 636 | $this->assertFalse($loaded);  | 
            ||
| 637 | $this->assertInstanceOf(Implementation::class, $b);  | 
            ||
| 638 | $this->assertSame([], \iterator_to_array($b->iterator()));  | 
            ||
| 639 | $this->assertFalse($loaded);  | 
            ||
| 640 | $this->assertSame([1, 2], \iterator_to_array($a->iterator()));  | 
            ||
| 641 | }  | 
            ||
| 642 | |||
| 643 | public function testReverse()  | 
            ||
| 660 | }  | 
            ||
| 661 | |||
| 662 | public function testEmpty()  | 
            ||
| 663 |     { | 
            ||
| 664 | $aLoaded = false;  | 
            ||
| 665 | $bLoaded = false;  | 
            ||
| 666 |         $a = new Defer('int', (function() use (&$aLoaded) { | 
            ||
| 667 | yield 1;  | 
            ||
| 668 | $aLoaded = true;  | 
            ||
| 669 | })());  | 
            ||
| 670 |         $b = new Defer('int', (function() use (&$bLoaded) { | 
            ||
| 671 |             if (false) { | 
            ||
| 672 | yield 1;  | 
            ||
| 673 | }  | 
            ||
| 674 | $bLoaded = true;  | 
            ||
| 675 | })());  | 
            ||
| 676 | |||
| 677 | $this->assertFalse($aLoaded);  | 
            ||
| 678 | $this->assertFalse($bLoaded);  | 
            ||
| 679 | $this->assertTrue($b->empty());  | 
            ||
| 680 | $this->assertFalse($a->empty());  | 
            ||
| 681 | $this->assertFalse($aLoaded); // still false as we don't need to load the full iterator to know if it's empty  | 
            ||
| 682 | $this->assertTrue($bLoaded);  | 
            ||
| 683 | }  | 
            ||
| 684 | |||
| 685 | public function testToSequenceOf()  | 
            ||
| 686 |     { | 
            ||
| 687 | $loaded = false;  | 
            ||
| 688 |         $sequence = new Defer('int', (function() use (&$loaded) { | 
            ||
| 689 | yield 1;  | 
            ||
| 690 | yield 2;  | 
            ||
| 691 | yield 3;  | 
            ||
| 692 | $loaded = true;  | 
            ||
| 693 | })());  | 
            ||
| 694 |         $sequence = $sequence->toSequenceOf('string|int', function($i) { | 
            ||
| 695 | yield (string) $i;  | 
            ||
| 696 | yield $i;  | 
            ||
| 697 | });  | 
            ||
| 698 | |||
| 699 | $this->assertFalse($loaded);  | 
            ||
| 700 | $this->assertInstanceOf(Sequence::class, $sequence);  | 
            ||
| 701 | $this->assertSame(  | 
            ||
| 702 | ['1', 1, '2', 2, '3', 3],  | 
            ||
| 703 | unwrap($sequence),  | 
            ||
| 704 | );  | 
            ||
| 705 | $this->assertTrue($loaded);  | 
            ||
| 706 | }  | 
            ||
| 707 | |||
| 708 | public function testToSetOf()  | 
            ||
| 709 |     { | 
            ||
| 710 |         $sequence = new Defer('int', (function() { | 
            ||
| 711 | yield 1;  | 
            ||
| 712 | yield 2;  | 
            ||
| 713 | yield 3;  | 
            ||
| 714 | })());  | 
            ||
| 715 |         $set = $sequence->toSetOf('string|int', function($i) { | 
            ||
| 716 | yield (string) $i;  | 
            ||
| 717 | yield $i;  | 
            ||
| 718 | });  | 
            ||
| 719 | |||
| 720 | $this->assertInstanceOf(Set::class, $set);  | 
            ||
| 721 | $this->assertSame(  | 
            ||
| 722 | ['1', 1, '2', 2, '3', 3],  | 
            ||
| 723 | unwrap($set),  | 
            ||
| 724 | );  | 
            ||
| 725 | }  | 
            ||
| 726 | |||
| 727 | public function testToMapOf()  | 
            ||
| 741 | }  | 
            ||
| 742 | }  | 
            ||
| 743 | 
The issue could also be caused by a filter entry in the build configuration. If the path has been excluded in your configuration, e.g.
excluded_paths: ["lib/*"], you can move it to the dependency path list as follows:For further information see https://scrutinizer-ci.com/docs/tools/php/php-scrutinizer/#list-dependency-paths