ciaran.co.za
Rust-style Option and Result Classes for PHP
refactor(tests/OptionTest.php): remove tests for methods that won't be implemented
-66
tests/OptionTest.php
-66
tests/OptionTest.php
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$this->assertSame(42, Option::None()->mapOr(fn () => 42, fn ($v) => strlen($v)));
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}
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public function test_map_or_else(): void
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{
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$this->markTestIncomplete('TODO');
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$k = 21;
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$this->assertSame(3, Option::Some('foo')->mapOrElse(fn () => 2 * $k, fn ($v) => strlen($v)));
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$this->assertSame(42, Option::None()->mapOrElse(fn () => 2 * $k, fn ($v) => strlen($v)));
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}
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public function test_filter(): void
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{
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$result = Option::Some(4)->filter(fn ($x) => $x > 2);
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$result = $n->reduce($n, $f);
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$this->assertTrue($result->isNone());
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}
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public function test_replace(): void
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{
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$x = Option::Some(2);
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$old = $x->replace(5);
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$this->assertTrue($x->isSome());
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$this->assertSame(5, $x->unwrap());
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$this->assertTrue($old->isSome());
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$this->assertSame(2, $old->unwrap());
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$x = Option::None();
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$old = $x->replace(3);
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$this->assertTrue($x->isSome());
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$this->assertSame(3, $x->unwrap());
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$this->assertTrue($old->isNone());
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}
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public function test_take(): void
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{
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$x = Option::Some(2);
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$y = $x->take();
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$this->assertTrue($x->isNone());
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$this->assertTrue($y->isSome());
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$this->assertSame(2, $y->unwrap());
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$x = Option::None();
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$y = $x->take();
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$this->assertTrue($x->isNone());
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$this->assertTrue($y->isNone());
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}
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public function test_take_if(): void
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{
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$x = Option::Some(42);
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$prev = $x->takeIf(function (&$v) {
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if ($v === 42) {
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$v += 1;
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return false;
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}
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return false;
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});
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$this->assertTrue($x->isSome());
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$this->assertSame(43, $x->unwrap());
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$this->assertTrue($prev->isNone());
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$x = Option::Some(43);
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$prev = $x->takeIf(fn ($v) => $v === 43);
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$this->assertTrue($x->isNone());
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$this->assertTrue($prev->isSome());
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$this->assertSame(43, $prev->unwrap());
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$x = Option::None();
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$prev = $x->takeIf(fn ($v) => true);
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$this->assertTrue($x->isNone());
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$this->assertTrue($prev->isNone());
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}
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// Integration tests