Innmind /
Immutable
| Total Complexity | 49 |
| Total Lines | 710 |
| 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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| 17 | class DeferTest extends TestCase |
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| 18 | { |
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| 19 | public function testInterface() |
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| 20 | { |
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| 21 | $this->assertInstanceOf( |
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| 22 | Implementation::class, |
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| 23 | new Defer((static fn() => yield)()), |
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| 24 | ); |
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| 25 | } |
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| 26 | |||
| 27 | public function testGeneratorNotLoadedAtInstanciation() |
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| 28 | { |
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| 29 | $loaded = false; |
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| 30 | $sequence = new Defer((static function() use (&$loaded) { |
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|
Unused Code
introduced
by
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| 31 | yield 1; |
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| 32 | $loaded = true; |
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| 33 | })()); |
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| 34 | |||
| 35 | $this->assertFalse($loaded); |
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| 36 | } |
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| 37 | |||
| 38 | public function testSize() |
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| 39 | { |
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| 40 | $sequence = new Defer((static function() { |
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| 41 | yield 1; |
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| 42 | yield 1; |
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| 43 | })()); |
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| 44 | |||
| 45 | $this->assertSame(2, $sequence->size()); |
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| 46 | $this->assertSame(2, $sequence->count()); |
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| 47 | } |
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| 48 | |||
| 49 | public function testIterator() |
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| 50 | { |
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| 51 | $sequence = new Defer((static function() { |
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| 52 | yield 1; |
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| 53 | yield 2; |
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| 54 | yield 3; |
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| 55 | })()); |
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| 56 | |||
| 57 | $this->assertSame( |
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| 58 | [1, 2, 3], |
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| 59 | \iterator_to_array($sequence->iterator()), |
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| 60 | ); |
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| 61 | } |
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| 62 | |||
| 63 | public function testGet() |
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| 64 | { |
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| 65 | $sequence = new Defer((static function() { |
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| 66 | yield 1; |
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| 67 | yield 42; |
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| 68 | yield 3; |
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| 69 | })()); |
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| 70 | |||
| 71 | $this->assertSame(42, $this->get($sequence, 1)); |
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| 72 | } |
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| 73 | |||
| 74 | public function testReturnNothinWhenIndexNotFound() |
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| 75 | { |
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| 76 | $sequence = new Defer((static function() { |
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| 77 | if (false) { |
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| 78 | yield 1; |
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| 79 | } |
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| 80 | })()); |
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| 81 | |||
| 82 | $this->assertNull($this->get($sequence, 0)); |
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| 83 | } |
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| 84 | |||
| 85 | public function testDiff() |
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| 86 | { |
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| 87 | $aLoaded = false; |
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| 88 | $bLoaded = false; |
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| 89 | $a = new Defer((static function() use (&$aLoaded) { |
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| 90 | yield 1; |
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| 91 | yield 2; |
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| 92 | $aLoaded = true; |
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| 93 | })()); |
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| 94 | $b = new Defer((static function() use (&$bLoaded) { |
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| 95 | yield 2; |
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| 96 | yield 3; |
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| 97 | $bLoaded = true; |
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| 98 | })()); |
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| 99 | $c = $a->diff($b); |
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| 100 | |||
| 101 | $this->assertFalse($aLoaded); |
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| 102 | $this->assertFalse($bLoaded); |
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| 103 | $this->assertSame([1, 2], \iterator_to_array($a->iterator())); |
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| 104 | $this->assertSame([2, 3], \iterator_to_array($b->iterator())); |
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| 105 | $this->assertInstanceOf(Defer::class, $c); |
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| 106 | $this->assertSame([1], \iterator_to_array($c->iterator())); |
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| 107 | $this->assertTrue($aLoaded); |
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| 108 | $this->assertTrue($bLoaded); |
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| 109 | } |
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| 110 | |||
| 111 | public function testDistinct() |
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| 112 | { |
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| 113 | $loaded = false; |
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| 114 | $a = new Defer((static function() use (&$loaded) { |
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| 115 | yield 1; |
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| 116 | yield 2; |
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| 117 | yield 1; |
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| 118 | $loaded = true; |
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| 119 | })()); |
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| 120 | $b = $a->distinct(); |
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| 121 | |||
| 122 | $this->assertFalse($loaded); |
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| 123 | $this->assertSame([1, 2, 1], \iterator_to_array($a->iterator())); |
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| 124 | $this->assertInstanceOf(Defer::class, $b); |
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| 125 | $this->assertSame([1, 2], \iterator_to_array($b->iterator())); |
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| 126 | $this->assertTrue($loaded); |
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| 127 | } |
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| 128 | |||
| 129 | public function testDrop() |
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| 130 | { |
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| 131 | $loaded = false; |
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| 132 | $a = new Defer((static function() use (&$loaded) { |
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| 133 | yield 1; |
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| 134 | yield 2; |
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| 135 | yield 3; |
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| 136 | yield 4; |
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| 137 | $loaded = true; |
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| 138 | })()); |
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| 139 | $b = $a->drop(2); |
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| 140 | |||
| 141 | $this->assertFalse($loaded); |
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| 142 | $this->assertSame([1, 2, 3, 4], \iterator_to_array($a->iterator())); |
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| 143 | $this->assertInstanceOf(Defer::class, $b); |
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| 144 | $this->assertSame([3, 4], \iterator_to_array($b->iterator())); |
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| 145 | $this->assertTrue($loaded); |
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| 146 | } |
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| 147 | |||
| 148 | public function testDropEnd() |
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| 149 | { |
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| 150 | $a = new Defer((static function() { |
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| 151 | yield 1; |
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| 152 | yield 2; |
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| 153 | yield 3; |
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| 154 | yield 4; |
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| 155 | })()); |
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| 156 | $b = $a->dropEnd(2); |
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| 157 | |||
| 158 | $this->assertSame([1, 2, 3, 4], \iterator_to_array($a->iterator())); |
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| 159 | $this->assertInstanceOf(Implementation::class, $b); |
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| 160 | $this->assertSame([1, 2], \iterator_to_array($b->iterator())); |
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| 161 | } |
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| 162 | |||
| 163 | public function testEquals() |
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| 164 | { |
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| 165 | $a = new Defer((static function() { |
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| 166 | yield 1; |
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| 167 | yield 2; |
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| 168 | })()); |
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| 169 | $b = new Defer((static function() { |
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| 170 | yield 1; |
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| 171 | yield 2; |
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| 172 | yield 3; |
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| 173 | })()); |
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| 174 | $this->assertTrue($a->equals($a)); |
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| 175 | $this->assertFalse($a->equals($b)); |
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| 176 | } |
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| 177 | |||
| 178 | public function testFilter() |
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| 179 | { |
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| 180 | $loaded = false; |
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| 181 | $a = new Defer((static function() use (&$loaded) { |
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| 182 | yield 1; |
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| 183 | yield 2; |
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| 184 | yield 3; |
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| 185 | yield 4; |
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| 186 | $loaded = true; |
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| 187 | })()); |
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| 188 | $b = $a->filter(static fn($i) => $i % 2 === 0); |
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| 189 | |||
| 190 | $this->assertFalse($loaded); |
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| 191 | $this->assertSame([1, 2, 3, 4], \iterator_to_array($a->iterator())); |
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| 192 | $this->assertInstanceOf(Defer::class, $b); |
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| 193 | $this->assertSame([2, 4], \iterator_to_array($b->iterator())); |
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| 194 | $this->assertTrue($loaded); |
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| 195 | } |
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| 196 | |||
| 197 | public function testForeach() |
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| 198 | { |
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| 199 | $sequence = new Defer((static function() { |
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| 200 | yield 1; |
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| 201 | yield 2; |
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| 202 | yield 3; |
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| 203 | yield 4; |
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| 204 | })()); |
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| 205 | $calls = 0; |
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| 206 | $sum = 0; |
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| 207 | |||
| 208 | $this->assertInstanceOf( |
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| 209 | SideEffect::class, |
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| 210 | $sequence->foreach(static function($i) use (&$calls, &$sum) { |
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| 211 | ++$calls; |
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| 212 | $sum += $i; |
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| 213 | }), |
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| 214 | ); |
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| 215 | $this->assertSame(4, $calls); |
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| 216 | $this->assertSame(10, $sum); |
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| 217 | } |
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| 218 | |||
| 219 | public function testGroupEmptySequence() |
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| 220 | { |
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| 221 | $sequence = new Defer((static function() { |
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| 222 | if (false) { |
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| 223 | yield 1; |
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| 224 | } |
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| 225 | })()); |
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| 226 | |||
| 227 | $this->assertTrue( |
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| 228 | $sequence |
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| 229 | ->groupBy(static fn($i) => $i) |
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| 230 | ->equals(Map::of()), |
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| 231 | ); |
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| 232 | } |
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| 233 | |||
| 234 | public function testGroupBy() |
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| 235 | { |
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| 236 | $sequence = new Defer((static function() { |
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| 237 | yield 1; |
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| 238 | yield 2; |
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| 239 | yield 3; |
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| 240 | yield 4; |
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| 241 | })()); |
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| 242 | $groups = $sequence->groupBy(static fn($i) => $i % 2); |
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| 243 | |||
| 244 | $this->assertSame([1, 2, 3, 4], \iterator_to_array($sequence->iterator())); |
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| 245 | $this->assertInstanceOf(Map::class, $groups); |
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| 246 | $this->assertCount(2, $groups); |
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| 247 | $this->assertSame([2, 4], $this->get($groups, 0)->toList()); |
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| 248 | $this->assertSame([1, 3], $this->get($groups, 1)->toList()); |
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| 249 | } |
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| 250 | |||
| 251 | public function testReturnNothingWhenTryingToAccessFirstElementOnEmptySequence() |
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| 252 | { |
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| 253 | $sequence = new Defer((static function() { |
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| 254 | if (false) { |
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| 255 | yield 1; |
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| 256 | } |
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| 257 | })()); |
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| 258 | |||
| 259 | $this->assertNull( |
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| 260 | $sequence->first()->match( |
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| 261 | static fn($value) => $value, |
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| 262 | static fn() => null, |
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| 263 | ), |
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| 264 | ); |
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| 265 | } |
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| 266 | |||
| 267 | public function testReturnWhenTryingToAccessLastElementOnEmptySequence() |
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| 268 | { |
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| 269 | $sequence = new Defer((static function() { |
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| 270 | if (false) { |
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| 271 | yield 1; |
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| 272 | } |
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| 273 | })()); |
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| 274 | |||
| 275 | $this->assertNull( |
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| 276 | $sequence->last()->match( |
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| 277 | static fn($value) => $value, |
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| 278 | static fn() => null, |
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| 279 | ), |
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| 280 | ); |
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| 281 | } |
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| 282 | |||
| 283 | public function testFirst() |
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| 284 | { |
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| 285 | $sequence = new Defer((static function() { |
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| 286 | yield 2; |
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| 287 | yield 3; |
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| 288 | yield 4; |
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| 289 | })()); |
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| 290 | |||
| 291 | $this->assertSame( |
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| 292 | 2, |
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| 293 | $sequence->first()->match( |
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| 294 | static fn($value) => $value, |
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| 295 | static fn() => null, |
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| 296 | ), |
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| 297 | ); |
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| 298 | } |
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| 299 | |||
| 300 | public function testLast() |
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| 301 | { |
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| 302 | $sequence = new Defer((static function() { |
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| 303 | yield 1; |
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| 304 | yield 2; |
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| 305 | yield 3; |
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| 306 | })()); |
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| 307 | |||
| 308 | $this->assertSame( |
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| 309 | 3, |
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| 310 | $sequence->last()->match( |
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| 311 | static fn($value) => $value, |
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| 312 | static fn() => null, |
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| 313 | ), |
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| 314 | ); |
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| 315 | } |
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| 316 | |||
| 317 | public function testContains() |
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| 318 | { |
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| 319 | $sequence = new Defer((static function() { |
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| 320 | yield 1; |
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| 321 | yield 2; |
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| 322 | yield 3; |
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| 323 | })()); |
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| 324 | |||
| 325 | $this->assertTrue($sequence->contains(2)); |
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| 326 | $this->assertFalse($sequence->contains(4)); |
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| 327 | } |
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| 328 | |||
| 329 | public function testIndexOf() |
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| 330 | { |
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| 331 | $sequence = new Defer((static function() { |
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| 332 | yield 1; |
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| 333 | yield 2; |
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| 334 | yield 4; |
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| 335 | })()); |
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| 336 | |||
| 337 | $this->assertSame( |
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| 338 | 1, |
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| 339 | $sequence->indexOf(2)->match( |
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| 340 | static fn($value) => $value, |
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| 341 | static fn() => null, |
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| 342 | ), |
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| 343 | ); |
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| 344 | $this->assertSame( |
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| 345 | 2, |
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| 346 | $sequence->indexOf(4)->match( |
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| 347 | static fn($value) => $value, |
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| 348 | static fn() => null, |
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| 349 | ), |
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| 350 | ); |
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| 351 | } |
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| 352 | |||
| 353 | public function testReturnNothingWhenTryingToAccessIndexOfUnknownValue() |
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| 354 | { |
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| 355 | $sequence = new Defer((static function() { |
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| 356 | if (false) { |
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| 357 | yield 1; |
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| 358 | } |
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| 359 | })()); |
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| 360 | |||
| 361 | $this->assertNull( |
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| 362 | $sequence->indexOf(1)->match( |
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| 363 | static fn($value) => $value, |
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| 364 | static fn() => null, |
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| 365 | ), |
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| 366 | ); |
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| 367 | } |
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| 368 | |||
| 369 | public function testIndices() |
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| 370 | { |
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| 371 | $loaded = false; |
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| 372 | $a = new Defer((static function() use (&$loaded) { |
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| 373 | yield '1'; |
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| 374 | yield '2'; |
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| 375 | $loaded = true; |
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| 376 | })()); |
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| 377 | $b = $a->indices(); |
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| 378 | |||
| 379 | $this->assertFalse($loaded); |
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| 380 | $this->assertSame(['1', '2'], \iterator_to_array($a->iterator())); |
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| 381 | $this->assertInstanceOf(Defer::class, $b); |
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| 382 | $this->assertSame([0, 1], \iterator_to_array($b->iterator())); |
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| 383 | $this->assertTrue($loaded); |
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| 384 | } |
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| 385 | |||
| 386 | public function testIndicesOnEmptySequence() |
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| 387 | { |
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| 388 | $a = new Defer((static function() { |
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| 389 | if (false) { |
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| 390 | yield 1; |
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| 391 | } |
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| 392 | })()); |
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| 393 | $b = $a->indices(); |
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| 394 | |||
| 395 | $this->assertSame([], \iterator_to_array($a->iterator())); |
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| 396 | $this->assertInstanceOf(Defer::class, $b); |
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| 397 | $this->assertSame([], \iterator_to_array($b->iterator())); |
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| 398 | } |
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| 399 | |||
| 400 | public function testMap() |
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| 401 | { |
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| 402 | $loaded = false; |
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| 403 | $a = new Defer((static function() use (&$loaded) { |
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| 404 | yield 1; |
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| 405 | yield 2; |
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| 406 | yield 3; |
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| 407 | $loaded = true; |
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| 408 | })()); |
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| 409 | $b = $a->map(static fn($i) => $i * 2); |
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| 410 | |||
| 411 | $this->assertFalse($loaded); |
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| 412 | $this->assertSame([1, 2, 3], \iterator_to_array($a->iterator())); |
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| 413 | $this->assertInstanceOf(Defer::class, $b); |
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| 414 | $this->assertSame([2, 4, 6], \iterator_to_array($b->iterator())); |
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| 415 | $this->assertTrue($loaded); |
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| 416 | } |
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| 417 | |||
| 418 | public function testPad() |
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| 419 | { |
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| 420 | $loaded = false; |
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| 421 | $a = new Defer((static function() use (&$loaded) { |
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| 422 | yield 1; |
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| 423 | yield 2; |
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| 424 | $loaded = true; |
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| 425 | })()); |
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| 426 | $b = $a->pad(4, 0); |
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| 427 | $c = $a->pad(1, 0); |
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| 428 | |||
| 429 | $this->assertFalse($loaded); |
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| 430 | $this->assertSame([1, 2], \iterator_to_array($a->iterator())); |
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| 431 | $this->assertInstanceOf(Defer::class, $b); |
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| 432 | $this->assertInstanceOf(Defer::class, $c); |
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| 433 | $this->assertSame([1, 2, 0, 0], \iterator_to_array($b->iterator())); |
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| 434 | $this->assertSame([1, 2], \iterator_to_array($c->iterator())); |
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| 435 | $this->assertTrue($loaded); |
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| 436 | } |
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| 437 | |||
| 438 | public function testPartition() |
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| 439 | { |
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| 440 | $sequence = new Defer((static function() { |
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| 441 | yield 1; |
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| 442 | yield 2; |
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| 443 | yield 3; |
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| 444 | yield 4; |
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| 445 | })()); |
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| 446 | $partition = $sequence->partition(static fn($i) => $i % 2 === 0); |
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| 447 | |||
| 448 | $this->assertSame([1, 2, 3, 4], \iterator_to_array($sequence->iterator())); |
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| 449 | $this->assertInstanceOf(Map::class, $partition); |
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| 450 | $this->assertCount(2, $partition); |
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| 451 | $this->assertSame([2, 4], $this->get($partition, true)->toList()); |
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| 452 | $this->assertSame([1, 3], $this->get($partition, false)->toList()); |
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| 453 | } |
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| 454 | |||
| 455 | public function testSlice() |
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| 456 | { |
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| 457 | $loaded = false; |
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| 458 | $a = new Defer((static function() use (&$loaded) { |
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| 459 | yield 2; |
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| 460 | yield 3; |
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| 461 | yield 4; |
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| 462 | yield 5; |
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| 463 | $loaded = true; |
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| 464 | })()); |
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| 465 | $b = $a->slice(1, 3); |
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| 466 | |||
| 467 | $this->assertFalse($loaded); |
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| 468 | $this->assertSame([2, 3, 4, 5], \iterator_to_array($a->iterator())); |
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| 469 | $this->assertInstanceOf(Defer::class, $b); |
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| 470 | $this->assertSame([3, 4], \iterator_to_array($b->iterator())); |
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| 471 | $this->assertTrue($loaded); |
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| 472 | } |
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| 473 | |||
| 474 | public function testTake() |
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| 475 | { |
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| 476 | $loaded = false; |
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| 477 | $a = new Defer((static function() use (&$loaded) { |
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| 478 | yield 2; |
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| 479 | yield 3; |
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| 480 | yield 4; |
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| 481 | $loaded = true; |
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| 482 | })()); |
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| 483 | $b = $a->take(2); |
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| 484 | |||
| 485 | $this->assertFalse($loaded); |
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| 486 | $this->assertSame([2, 3, 4], \iterator_to_array($a->iterator())); |
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| 487 | $this->assertInstanceOf(Defer::class, $b); |
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| 488 | $this->assertSame([2, 3], \iterator_to_array($b->iterator())); |
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| 489 | $this->assertTrue($loaded); |
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| 490 | } |
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| 491 | |||
| 492 | public function testSequenceNotCompletelyLoadedWhenTakingFewerThanItsSize() |
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| 507 | } |
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| 508 | |||
| 509 | public function testTakeEnd() |
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| 510 | { |
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| 511 | $a = new Defer((static function() { |
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| 512 | yield 2; |
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| 513 | yield 3; |
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| 514 | yield 4; |
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| 515 | })()); |
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| 516 | $b = $a->takeEnd(2); |
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| 517 | |||
| 518 | $this->assertSame([2, 3, 4], \iterator_to_array($a->iterator())); |
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| 519 | $this->assertInstanceOf(Implementation::class, $b); |
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| 520 | $this->assertSame([3, 4], \iterator_to_array($b->iterator())); |
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| 521 | } |
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| 522 | |||
| 523 | public function testAppend() |
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| 524 | { |
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| 525 | $aLoaded = false; |
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| 526 | $bLoaded = false; |
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| 527 | $a = new Defer((static function() use (&$aLoaded) { |
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| 528 | yield 1; |
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| 529 | yield 2; |
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| 530 | $aLoaded = true; |
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| 531 | })()); |
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| 532 | $b = new Defer((static function() use (&$bLoaded) { |
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| 533 | yield 3; |
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| 534 | yield 4; |
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| 535 | $bLoaded = true; |
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| 536 | })()); |
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| 537 | $c = $a->append($b); |
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| 538 | |||
| 539 | $this->assertFalse($aLoaded); |
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| 540 | $this->assertFalse($bLoaded); |
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| 541 | $this->assertSame([1, 2], \iterator_to_array($a->iterator())); |
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| 542 | $this->assertSame([3, 4], \iterator_to_array($b->iterator())); |
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| 543 | $this->assertInstanceOf(Defer::class, $c); |
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| 544 | $this->assertSame([1, 2, 3, 4], \iterator_to_array($c->iterator())); |
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| 545 | $this->assertTrue($aLoaded); |
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| 546 | $this->assertTrue($bLoaded); |
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| 547 | } |
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| 548 | |||
| 549 | public function testIntersect() |
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| 550 | { |
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| 551 | $aLoaded = false; |
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| 552 | $bLoaded = false; |
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| 553 | $a = new Defer((static function() use (&$aLoaded) { |
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| 554 | yield 1; |
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| 555 | yield 2; |
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| 556 | $aLoaded = true; |
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| 557 | })()); |
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| 558 | $b = new Defer((static function() use (&$bLoaded) { |
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| 559 | yield 2; |
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| 560 | yield 3; |
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| 561 | $bLoaded = true; |
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| 562 | })()); |
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| 563 | $c = $a->intersect($b); |
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| 564 | |||
| 565 | $this->assertFalse($aLoaded); |
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| 566 | $this->assertFalse($bLoaded); |
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| 567 | $this->assertSame([1, 2], \iterator_to_array($a->iterator())); |
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| 568 | $this->assertSame([2, 3], \iterator_to_array($b->iterator())); |
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| 569 | $this->assertInstanceOf(Defer::class, $c); |
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| 570 | $this->assertSame([2], \iterator_to_array($c->iterator())); |
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| 571 | $this->assertTrue($aLoaded); |
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| 572 | $this->assertTrue($bLoaded); |
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| 573 | } |
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| 574 | |||
| 575 | public function testAdd() |
||
| 576 | { |
||
| 577 | $loaded = false; |
||
| 578 | $a = new Defer((static function() use (&$loaded) { |
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| 579 | yield 1; |
||
| 580 | $loaded = true; |
||
| 581 | })()); |
||
| 582 | $b = ($a)(2); |
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| 583 | |||
| 584 | $this->assertFalse($loaded); |
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| 585 | $this->assertSame([1], \iterator_to_array($a->iterator())); |
||
| 586 | $this->assertInstanceOf(Defer::class, $b); |
||
| 587 | $this->assertSame([1, 2], \iterator_to_array($b->iterator())); |
||
| 588 | $this->assertTrue($loaded); |
||
| 589 | } |
||
| 590 | |||
| 591 | public function testSort() |
||
| 592 | { |
||
| 593 | $a = new Defer((static function() { |
||
| 594 | yield 1; |
||
| 595 | yield 4; |
||
| 596 | yield 3; |
||
| 597 | yield 2; |
||
| 598 | })()); |
||
| 599 | $b = $a->sort(static fn($a, $b) => $a > $b ? 1 : -1); |
||
| 600 | |||
| 601 | $this->assertSame([1, 4, 3, 2], \iterator_to_array($a->iterator())); |
||
| 602 | $this->assertInstanceOf(Defer::class, $b); |
||
| 603 | $this->assertSame([1, 2, 3, 4], \iterator_to_array($b->iterator())); |
||
| 604 | } |
||
| 605 | |||
| 606 | public function testReduce() |
||
| 607 | { |
||
| 608 | $sequence = new Defer((static function() { |
||
| 609 | yield 1; |
||
| 610 | yield 2; |
||
| 611 | yield 3; |
||
| 612 | yield 4; |
||
| 613 | })()); |
||
| 614 | |||
| 615 | $this->assertSame(10, $sequence->reduce(0, static fn($sum, $i) => $sum + $i)); |
||
| 616 | } |
||
| 617 | |||
| 618 | public function testClear() |
||
| 619 | { |
||
| 620 | $loaded = false; |
||
| 621 | $a = new Defer((static function() use (&$loaded) { |
||
| 622 | yield 1; |
||
| 623 | yield 2; |
||
| 624 | $loaded = true; |
||
| 625 | })()); |
||
| 626 | $b = $a->clear(); |
||
| 627 | |||
| 628 | $this->assertFalse($loaded); |
||
| 629 | $this->assertInstanceOf(Implementation::class, $b); |
||
| 630 | $this->assertSame([], \iterator_to_array($b->iterator())); |
||
| 631 | $this->assertFalse($loaded); |
||
| 632 | $this->assertSame([1, 2], \iterator_to_array($a->iterator())); |
||
| 633 | } |
||
| 634 | |||
| 635 | public function testReverse() |
||
| 652 | } |
||
| 653 | |||
| 654 | public function testEmpty() |
||
| 655 | { |
||
| 656 | $aLoaded = false; |
||
| 657 | $bLoaded = false; |
||
| 658 | $a = new Defer((static function() use (&$aLoaded) { |
||
| 659 | yield 1; |
||
| 660 | $aLoaded = true; |
||
| 661 | })()); |
||
| 662 | $b = new Defer((static function() use (&$bLoaded) { |
||
| 663 | if (false) { |
||
| 664 | yield 1; |
||
| 665 | } |
||
| 666 | $bLoaded = true; |
||
| 667 | })()); |
||
| 668 | |||
| 669 | $this->assertFalse($aLoaded); |
||
| 670 | $this->assertFalse($bLoaded); |
||
| 671 | $this->assertTrue($b->empty()); |
||
| 672 | $this->assertFalse($a->empty()); |
||
| 673 | $this->assertFalse($aLoaded); // still false as we don't need to load the full iterator to know if it's empty |
||
| 674 | $this->assertTrue($bLoaded); |
||
| 675 | } |
||
| 676 | |||
| 677 | public function testFind() |
||
| 678 | { |
||
| 679 | $count = 0; |
||
| 680 | $sequence = new Defer((static function() use (&$count) { |
||
| 681 | ++$count; |
||
| 682 | yield 1; |
||
| 683 | ++$count; |
||
| 684 | yield 2; |
||
| 685 | ++$count; |
||
| 686 | yield 3; |
||
| 687 | })()); |
||
| 688 | |||
| 689 | $this->assertSame( |
||
| 690 | 1, |
||
| 691 | $sequence->find(static fn($i) => $i === 1)->match( |
||
| 692 | static fn($i) => $i, |
||
| 693 | static fn() => null, |
||
| 694 | ), |
||
| 695 | ); |
||
| 696 | $this->assertSame(1, $count); |
||
| 697 | $this->assertSame( |
||
| 698 | 2, |
||
| 699 | $sequence->find(static fn($i) => $i === 2)->match( |
||
| 700 | static fn($i) => $i, |
||
| 701 | static fn() => null, |
||
| 702 | ), |
||
| 703 | ); |
||
| 704 | $this->assertSame(2, $count); |
||
| 705 | $this->assertSame( |
||
| 706 | 3, |
||
| 707 | $sequence->find(static fn($i) => $i === 3)->match( |
||
| 708 | static fn($i) => $i, |
||
| 709 | static fn() => null, |
||
| 710 | ), |
||
| 711 | ); |
||
| 712 | $this->assertSame(3, $count); |
||
| 713 | |||
| 714 | $this->assertNull( |
||
| 715 | $sequence->find(static fn($i) => $i === 0)->match( |
||
| 716 | static fn($i) => $i, |
||
| 717 | static fn() => null, |
||
| 718 | ), |
||
| 719 | ); |
||
| 720 | } |
||
| 721 | |||
| 722 | public function get($map, $index) |
||
| 727 | ); |
||
| 728 | } |
||
| 729 | } |
||
| 730 |
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