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diff --git a/omnitools/src/Collections/WithCollection.php b/omnitools/src/Collections/WithCollection.php
index 3b7c3ee..45baae3 100644
--- a/omnitools/src/Collections/WithCollection.php
+++ b/omnitools/src/Collections/WithCollection.php
@@ -1,27 +1,100 @@
<?php
namespace Keruald\OmniTools\Collections;
+use Keruald\OmniTools\Reflection\CallableElement;
+
+use InvalidArgumentException;
use OutOfRangeException;
trait WithCollection {
abstract function count () : int;
abstract function toArray() : array;
public function first () : mixed {
foreach ($this->toArray() as $item) {
return $item;
}
throw new OutOfRangeException("The collection is empty.");
}
public function firstOr (mixed $default) : mixed {
return match ($this->count()) {
0 => $default,
default => $this->first(),
};
}
+ ///
+ /// HOF
+ ///
+
+ /**
+ * Determines if at least an element of the collection satisfies a condition.
+ *
+ * The execution of callbacks stop after a callable returned true.
+ *
+ * @param callable $callable A method returning a boolean with key and value
+ * or only value as arguments.
+ *
+ * @return bool True if callback is true for at least one of the elements
+ * @throws \ReflectionException if the callable does not exist.
+ */
+ public function any (callable $callable) : bool {
+ $argc = (new CallableElement($callable))->countArguments();
+ $items = $this->toArray();
+
+ foreach ($items as $key => $value) {
+ $result = match($argc) {
+ 0 => throw new InvalidArgumentException(self::CB_ZERO_ARG),
+ 1 => $callable($value),
+ default => $callable($key, $value),
+ };
+
+ // PHP standard or extensions functions can sometimes throw
+ // mixed result, for example true or a constant. Any other
+ // result than the boolean true is interpreted as falsy.
+ if ($result === true) {
+ return true;
+ }
+ }
+
+ return false;
+ }
+
+ /**
+ * Determines if all elements of the collection satisfies a condition.
+ *
+ * The execution of callbacks stop after a callable returned false.
+ *
+ * @param callable $callable A method returning a boolean with key and value
+ * or only value as arguments.
+ *
+ * @return bool True if callback is true for all the elements
+ * @throws \ReflectionException if the callable does not exist.
+ */
+ public function all (callable $callable) : bool {
+ $argc = (new CallableElement($callable))->countArguments();
+ $items = $this->toArray();
+
+ foreach ($items as $key => $value) {
+ $result = match($argc) {
+ 0 => throw new InvalidArgumentException(self::CB_ZERO_ARG),
+ 1 => $callable($value),
+ default => $callable($key, $value),
+ };
+
+ // PHP standard or extensions functions can sometimes throw
+ // mixed result, for example true or a constant. Any other
+ // result than the boolean true is interpreted as falsy.
+ if ($result !== true) {
+ return false;
+ }
+ }
+
+ return true;
+ }
+
}
diff --git a/omnitools/tests/Collections/HashMapTest.php b/omnitools/tests/Collections/HashMapTest.php
index 9529d66..4d39415 100644
--- a/omnitools/tests/Collections/HashMapTest.php
+++ b/omnitools/tests/Collections/HashMapTest.php
@@ -1,528 +1,556 @@
<?php
namespace Keruald\OmniTools\Tests\Collections;
use Keruald\OmniTools\Collections\BitsVector;
use Keruald\OmniTools\Collections\HashMap;
use PHPUnit\Framework\Attributes\DataProvider;
use PHPUnit\Framework\TestCase;
use InvalidArgumentException;
use IteratorAggregate;
use OutOfRangeException;
use Traversable;
class HashMapTest extends TestCase {
///
/// Test set up
///
private HashMap $map;
const MAP_CONTENT = [
// Some sci-fi civilizations and author
"The Culture" => "Iain Banks",
"Radchaai Empire" => "Ann Leckie",
"Barrayar" => "Lois McMaster Bujold",
"Hainish" => "Ursula K. Le Guin",
];
protected function setUp () : void {
$this->map = new HashMap(self::MAP_CONTENT);
}
///
/// Constructors
///
public function testConstructorWithArray () {
$this->assertSame(self::MAP_CONTENT, $this->map->toArray());
}
public function testConstructorWithTraversable () {
$expected = [
"color" => "blue",
"material" => "glass",
"shape" => "sphere",
];
$iterable = new class implements IteratorAggregate {
function getIterator () : Traversable {
yield "color" => "blue";
yield "material" => "glass";
yield "shape" => "sphere";
}
};
$map = new HashMap($iterable);
$this->assertSame($expected, $map->toArray());
}
public static function provideDeepArrays() : iterable {
yield [self::MAP_CONTENT, self::MAP_CONTENT];
yield [[], []];
yield [null, []];
$caps = new \stdClass;
$caps->color = "red";
$caps->logo = "HCKR";
yield [$caps, [
"color" => "red",
"logo" => "HCKR",
]];
$sizedCaps = clone $caps;
$sizedCaps->size = new \stdClass;
$sizedCaps->size->h = 8;
$sizedCaps->size->r = 20;
yield [$sizedCaps, [
"color" => "red",
"logo" => "HCKR",
"size" => ["h" => 8, "r" => 20],
]];
}
#[DataProvider('provideDeepArrays')]
public function testFrom($from, array $expected) : void {
$map = HashMap::from($from);
$this->assertEquals($expected, $map->toArray());
}
///
/// Getters and setters
///
public function testGet () {
$this->assertSame("Iain Banks", $this->map->get("The Culture"));
}
public function testGetWhenKeyIsNotFound () {
$this->expectException(InvalidArgumentException::class);
$this->map->get("Quuxians");
}
public function testGetOr () {
$actual = $this->map
->getOr("The Culture", "Another author");
$this->assertSame("Iain Banks", $actual);
}
public function testGetOrWhenKeyIsNotFound () {
$actual = $this->map
->getOr("Quuxians", "Another author");
$this->assertSame("Another author", $actual);
}
public function testSetWithNewKey () {
$this->map->set("Thélème", "François Rabelais");
$this->assertSame("François Rabelais",
$this->map->get("Thélème"));
}
public function testSetWithExistingKey () {
$this->map->set("The Culture", "Iain M. Banks");
$this->assertSame("Iain M. Banks",
$this->map->get("The Culture"));
}
public function testUnset() {
$this->map->unset("The Culture");
$this->assertFalse($this->map->contains("Iain Banks"));
}
public function testUnsetNotExistingKey() {
$this->map->unset("Not existing");
$this->assertEquals(4, $this->map->count());
}
public function testHas () {
$this->assertTrue($this->map->has("The Culture"));
$this->assertFalse($this->map->has("Not existing key"));
}
public function testContains () {
$this->assertTrue($this->map->contains("Iain Banks"));
$this->assertFalse($this->map->contains("Not existing value"));
}
///
/// Collection method
///
public function testCount () {
$this->assertSame(4, $this->map->count());
}
public function testClear () {
$this->map->clear();
$this->assertSame(0, $this->map->count());
}
public function testIsEmpty () : void {
$this->map->clear();
$this->assertTrue($this->map->isEmpty());
}
public function testMerge () {
$iterable = [
"The Culture" => "Iain M. Banks", // existing key
"Thélème" => "François Rabelais", // new key
];
$expected = [
// The original map
"The Culture" => "Iain Banks", // Old value should be kept
"Radchaai Empire" => "Ann Leckie",
"Barrayar" => "Lois McMaster Bujold",
"Hainish" => "Ursula K. Le Guin",
// The entries with a new key
"Thélème" => "François Rabelais",
];
$this->map->merge($iterable);
$this->assertSame($expected, $this->map->toArray());
}
public function testUpdate () {
$iterable = [
"The Culture" => "Iain M. Banks", // existing key
"Thélème" => "François Rabelais", // new key
];
$expected = [
// The original map
"The Culture" => "Iain M. Banks", // Old value should be updated
"Radchaai Empire" => "Ann Leckie",
"Barrayar" => "Lois McMaster Bujold",
"Hainish" => "Ursula K. Le Guin",
// The entries with a new key
"Thélème" => "François Rabelais",
];
$this->map->update($iterable);
$this->assertSame($expected, $this->map->toArray());
}
public function testToArray () {
$this->assertEquals(self::MAP_CONTENT, $this->map->toArray());
}
///
/// High order functions
///
public function testMap () {
$callback = function ($value) {
return "author='" . $value . "'";
};
$expected = [
"The Culture" => "author='Iain Banks'",
"Radchaai Empire" => "author='Ann Leckie'",
"Barrayar" => "author='Lois McMaster Bujold'",
"Hainish" => "author='Ursula K. Le Guin'",
];
$actual = $this->map->map($callback)->toArray();
$this->assertEquals($expected, $actual);
}
public function testMapKeys () {
$callback = function ($key) {
return "civ::" . $key;
};
$expected = [
// Some sci-fi civilizations and author
"civ::The Culture" => "Iain Banks",
"civ::Radchaai Empire" => "Ann Leckie",
"civ::Barrayar" => "Lois McMaster Bujold",
"civ::Hainish" => "Ursula K. Le Guin",
];
$actual = $this->map->mapKeys($callback)->toArray();
$this->assertEquals($expected, $actual);
}
public function testMapKeysAndValues () : void {
$callback = function ($civilization, $author) {
return [$author[0], "$author, $civilization"];
};
$expected = [
// Some sci-fi civilizations and author
"I" => "Iain Banks, The Culture",
"A" => "Ann Leckie, Radchaai Empire",
"L" => "Lois McMaster Bujold, Barrayar",
"U"=> "Ursula K. Le Guin, Hainish",
];
$actual = $this->map->mapValuesAndKeys($callback)->toArray();
$this->assertEquals($expected, $actual);
}
public function testMapKeysAndValuesForVectors () : void {
$callback = function ($author) {
return [$author[0], "author:" . $author];
};
$expected = [
// Some sci-fi civilizations and author
"I" => "author:Iain Banks",
"A" => "author:Ann Leckie",
"L" => "author:Lois McMaster Bujold",
"U" => "author:Ursula K. Le Guin",
];
$actual = $this->map->mapValuesAndKeys($callback)->toArray();
$this->assertEquals($expected, $actual);
}
public function testMapKeysAndValuesWithCallbackWithoutArgument() : void {
$this->expectException(InvalidArgumentException::class);
$callback = function () {};
$this->map->mapValuesAndKeys($callback);
}
public function testFlatMap(): void {
$callback = function ($key, $value) {
$items = explode(" ", $value);
foreach ($items as $item) {
yield $item => $key;
}
};
$expected = [
"Iain" => "The Culture",
"Banks" => "The Culture",
"Ann" => "Radchaai Empire",
"Leckie" => "Radchaai Empire",
"Lois" => "Barrayar",
"McMaster" => "Barrayar",
"Bujold" => "Barrayar",
"Ursula"=> "Hainish",
"K."=> "Hainish",
"Le"=> "Hainish",
"Guin"=> "Hainish",
];
$actual = $this->map->flatMap($callback)->toArray();
$this->assertEquals($expected, $actual);
}
public function testFlatMapForVectors() : void {
$callback = function ($value) {
$items = explode(" ", $value);
foreach ($items as $item) {
yield $item => $value;
}
};
$expected = [
"Iain" => "Iain Banks",
"Banks" => "Iain Banks",
"Ann" => "Ann Leckie",
"Leckie" => "Ann Leckie",
"Lois" => "Lois McMaster Bujold",
"McMaster" => "Lois McMaster Bujold",
"Bujold" => "Lois McMaster Bujold",
"Ursula"=> "Ursula K. Le Guin",
"K."=> "Ursula K. Le Guin",
"Le"=> "Ursula K. Le Guin",
"Guin"=> "Ursula K. Le Guin",
];
$actual = $this->map->flatMap($callback)->toArray();
$this->assertEquals($expected, $actual);
}
public function testFlatMapWithCallbackWithoutArgument() : void {
$this->expectException(InvalidArgumentException::class);
$callback = function () {};
$this->map->flatMap($callback);
}
public function testMapToVector() : void {
$expected = [
"The Culture by Iain Banks",
"Radchaai Empire by Ann Leckie",
"Barrayar by Lois McMaster Bujold",
"Hainish by Ursula K. Le Guin",
];
$fn = fn($key, $value) => "$key by $value";
$this->assertEquals($expected, $this->map->mapToVector($fn)->toArray());
}
public function testMapToVectorWithOnlyValueParameter() : void {
$expected = [
"Author: Iain Banks",
"Author: Ann Leckie",
"Author: Lois McMaster Bujold",
"Author: Ursula K. Le Guin",
];
$fn = fn($value) => "Author: $value";
$this->assertEquals($expected, $this->map->mapToVector($fn)->toArray());
}
public function testMapToVectorWithoutParameter() : void {
$this->expectException(InvalidArgumentException::class);
$fn = fn() => "";
$this->map->mapToVector($fn);
}
public function testFilter () {
// Let's filter to keep names with 3 parts or more
$callback = function ($value) : bool {
return str_word_count($value) > 2;
};
$expected = [
// Some sci-fi civilizations and author
"Barrayar" => "Lois McMaster Bujold",
"Hainish" => "Ursula K. Le Guin",
];
$actual = $this->map->filter($callback)->toArray();
$this->assertEquals($expected, $actual);
}
public function testFilterWithKeyValueCallback () {
// Let's find civilization AND author with e inside
$expected = [
// Some sci-fi civilizations and author
"Radchaai Empire" => "Ann Leckie",
];
$callback = function ($key, $value) : bool {
return str_contains($key, "e") && str_contains($value, "e");
};
$actual = $this->map->filter($callback)->toArray();
$this->assertEquals($expected, $actual);
}
public function testFilterWithCallbackWithoutArgument() {
$this->expectException(InvalidArgumentException::class);
$callback = function () : bool { // No argument
return true;
};
$this->map->filter($callback);
}
public function testFilterKeys () {
// Let's filter to keep short civilization names
$callback = function ($key) : bool {
return str_word_count($key) == 1;
};
$expected = [
// Some sci-fi civilizations and author
"Barrayar" => "Lois McMaster Bujold",
"Hainish" => "Ursula K. Le Guin",
];
$actual = $this->map->filterKeys($callback)->toArray();
$this->assertEquals($expected, $actual);
}
+ ///
+ /// HOF methods - WithCollection
+ ///
+
+ public function testAny () : void {
+ $author_is_Iain_Banks = fn($author) => $author === "Iain Banks";
+
+ $this->assertTrue($this->map->any($author_is_Iain_Banks));
+ }
+
+ public function testAnyWithAllFalseValues () : void {
+ $author_is_Isaac_Asimov = fn($author) => $author === "Isaac Asimov";
+
+ $this->assertFalse($this->map->any($author_is_Isaac_Asimov));
+ }
+
+ public function testAll () : void {
+ $author_contains_space = fn($author) => str_contains($author, " ");
+
+ $this->assertTrue($this->map->all($author_contains_space));
+ }
+
+ public function testAllWithFalseValue () : void {
+ $author_is_Iain_Banks = fn($author) => $author === "Iain Banks";
+
+ $this->assertFalse($this->map->all($author_is_Iain_Banks));
+ }
+
///
/// ArrayAccess
///
public function testOffsetExists () : void {
$this->assertTrue(isset($this->map["The Culture"]));
$this->assertFalse(isset($this->map["Not existing"]));
}
public function testOffsetSetWithoutOffset () : void {
$this->expectException(InvalidArgumentException::class);
$this->map[] = "Another Author";
}
public function testOffsetSet () : void {
$this->map["The Culture"] = "Iain M. Banks";
$this->assertEquals("Iain M. Banks", $this->map["The Culture"]);
}
public function testOffsetUnset () : void {
unset($this->map["Barrayar"]);
$expected = [
"The Culture" => "Iain Banks",
"Radchaai Empire" => "Ann Leckie",
// "Barrayar" => "Lois McMaster Bujold", UNSET ENTRY
"Hainish" => "Ursula K. Le Guin",
];
$this->assertEquals($expected, $this->map->toArray());
}
///
/// IteratorAggregate
///
public function testGetIterator () : void {
$this->assertEquals(self::MAP_CONTENT, iterator_to_array($this->map));
}
///
/// WithCollection trait
///
public function testFirst () : void {
$this->assertEquals("Iain Banks", $this->map->first());
}
public function testFirstWhenEmpty () : void {
$map = new HashMap();
$this->expectException(OutOfRangeException::class);
$map->first();
}
public function testFirstOr () : void {
$bits = BitsVector::new(4);
$bits[2] = 1;
$this->assertEquals("Iain Banks", $this->map->firstOr("Anonymous"));
}
public function testFirstOrWhenEmpty () : void {
$map = new HashMap();
$this->assertEquals("Anonymous", $map->firstOr("Anonymous"));
}
}
diff --git a/omnitools/tests/Collections/VectorTest.php b/omnitools/tests/Collections/VectorTest.php
index 49941b7..98883e9 100644
--- a/omnitools/tests/Collections/VectorTest.php
+++ b/omnitools/tests/Collections/VectorTest.php
@@ -1,432 +1,456 @@
<?php
declare(strict_types=1);
namespace Keruald\OmniTools\Tests\Collections;
use Keruald\OmniTools\Collections\BaseVector;
use Keruald\OmniTools\Collections\HashMap;
use Keruald\OmniTools\Collections\Vector;
use PHPUnit\Framework\Attributes\CoversClass;
use PHPUnit\Framework\Attributes\DataProvider;
use PHPUnit\Framework\TestCase;
use InvalidArgumentException;
use IteratorAggregate;
use OutOfRangeException;
use Traversable;
#[CoversClass(Vector::class)]
#[CoversClass(BaseVector::class)]
class VectorTest extends TestCase {
private Vector $vector;
protected function setUp () : void {
$this->vector = new Vector([1, 2, 3, 4, 5]);
}
public function testConstructorWithIterable () : void {
$iterable = new class implements IteratorAggregate {
public function getIterator () : Traversable {
yield 42;
yield 100;
}
};
$vector = new Vector($iterable);
$this->assertEquals([42, 100], $vector->toArray());
}
public function testFrom () : void {
$this->assertEquals([42, 100], Vector::from([42, 100])->toArray());
}
public function testGet () : void {
$vector = new Vector(["a", "b", "c"]);
$this->assertEquals("b", $vector->get(1));
}
public function testGetOverflow () : void {
$this->expectException(InvalidArgumentException::class);
$this->vector->get(800);
}
public function testGetOr () : void {
$vector = new Vector(["a", "b", "c"]);
$this->assertEquals("X", $vector->getOr(800, "X"));
}
public function testSet () : void {
$vector = new Vector(["a", "b", "c"]);
$vector->set(1, "x"); // should replace "b"
$this->assertEquals(["a", "x", "c"], $vector->toArray());
}
public function testContains () : void {
$this->assertTrue($this->vector->contains(2));
$this->assertFalse($this->vector->contains(666));
}
public function testCount () : void {
$this->assertEquals(5, $this->vector->count());
$this->assertEquals(0, (new Vector)->count());
}
public function testClear () : void {
$this->vector->clear();
$this->assertEquals(0, $this->vector->count());
}
public function testIsEmpty () : void {
$this->vector->clear();
$this->assertTrue($this->vector->isEmpty());
}
public function testPush () : void {
$this->vector->push(6);
$this->assertEquals([1, 2, 3, 4, 5, 6], $this->vector->toArray());
}
public function testAppend () : void {
$this->vector->append([6, 7, 8]);
$this->assertEquals([1, 2, 3, 4, 5, 6, 7 ,8], $this->vector->toArray());
}
public function testUpdate () : void {
$this->vector->update([5, 5, 5, 6, 7, 8]); // 5 already exists
$this->assertEquals([1, 2, 3, 4, 5, 6, 7 ,8], $this->vector->toArray());
}
public function testMap () : void {
$actual = $this->vector
->map(function ($x) { return $x * $x; })
->toArray();
$this->assertEquals([1, 4, 9, 16, 25], $actual);
}
public function testMapKeys () : void {
$vector = new Vector(["foo", "bar", "quux", "xizzy"]);
$filter = function ($key) {
return 0; // Let's collapse our array
};
$actual = $vector->mapKeys($filter)->toArray();
$this->assertEquals(["xizzy"], $actual);
}
public function testFlatMap () : void {
$expected = [
// Squares and cubes
1, 1,
4, 8,
9, 27,
16, 64,
25, 125
];
$callback = function ($n) {
yield $n * $n;
yield $n * $n * $n;
};
$actual = $this->vector->flatMap($callback)->toArray();
$this->assertEquals($expected, $actual);
}
public function testFlatMapWithKeyValueCallback() : void {
$vector = new Vector(["foo", "bar", "quux", "xizzy"]);
$callback = function (int $key, string $value) {
yield "$key::$value";
yield "$value ($key)";
};
$expected = [
"0::foo",
"foo (0)",
"1::bar",
"bar (1)",
"2::quux",
"quux (2)",
"3::xizzy",
"xizzy (3)",
];
$actual = $vector->flatMap($callback)->toArray();
$this->assertEquals($expected, $actual);
}
public function testFlatMapWithCallbackWithoutArgument() : void {
$this->expectException(InvalidArgumentException::class);
$callback = function () {};
$this->vector->flatMap($callback);
}
public function testMapToHashMap () : void {
$expected = [
1 => 1,
2 => 4,
3 => 9,
4 => 16,
5 => 25,
];
$fn = fn($value) => [$value, $value * $value];
$map = $this->vector->mapToHashMap($fn);
$this->assertInstanceOf(HashMap::class, $map);
$this->assertEquals($expected, $map->toArray());
}
public function testMapToHashMapWithCallbackWithoutArgument() : void {
$this->expectException(InvalidArgumentException::class);
$callback = function () {};
$this->vector->mapToHashMap($callback);
}
public function testMapToHashMapWithBadCallback () : void {
$this->expectException(InvalidArgumentException::class);
$callback = fn($key, $value) : bool => false; // not an array
$this->vector->mapToHashMap($callback);
}
public function testFilter () : void {
$vector = new Vector(["foo", "bar", "quux", "xizzy"]);
$filter = function ($item) {
return strlen($item) === 3; // Let's keep 3-letters words
};
$actual = $vector->filter($filter)->toArray();
$this->assertEquals(["foo", "bar"], $actual);
}
public function testFilterWithBadCallback () : void {
$this->expectException(InvalidArgumentException::class);
$badFilter = function () {};
$this->vector->filter($badFilter);
}
public function testFilterKeys () : void {
$filter = function ($key) {
return $key % 2 === 0; // Let's keep even indices
};
$actual = $this->vector
->filterKeys($filter)
->toArray();
$this->assertEquals([0, 2, 4], array_keys($actual));
}
+ public function testAny () : void {
+ $is_even = fn(int $item) : bool => $item % 2 === 0;
+
+ $this->assertTrue($this->vector->any($is_even));
+ }
+
+ public function testAnyWithAllFalseValues () : void {
+ $is_zero = fn(int $item) : bool => $item === 0;
+
+ $this->assertFalse($this->vector->any($is_zero));
+ }
+
+ public function testAll () : void {
+ $under_ten = fn(int $item) : bool => $item < 10;
+
+ $this->assertTrue($this->vector->all($under_ten));
+ }
+
+ public function testAllWithFalseValue () : void {
+ $is_even = fn(int $item) : bool => $item % 2 === 0;
+
+ $this->assertFalse($this->vector->all($is_even));
+ }
+
public function testChunk () : void {
$vector = new Vector([1, 2, 3, 4, 5, 6]);
$this->assertEquals(
[[1, 2], [3, 4], [5, 6]],
$vector->chunk(2)->toArray()
);
}
public function testSlice () : void {
$actual = $this->vector->slice(2, 3);
$this->assertEquals([3, 4, 5], $actual->toArray());
}
public function testImplode() : void {
$actual = (new Vector(["a", "b", "c"]))
->implode(".")
->__toString();
$this->assertEquals("a.b.c", $actual);
}
public function testImplodeWithoutDelimiter() : void {
$actual = (new Vector(["a", "b", "c"]))
->implode("")
->__toString();
$this->assertEquals("abc", $actual);
}
public function testExplode() : void {
$actual = Vector::explode(".", "a.b.c");
$this->assertEquals(["a", "b", "c"], $actual->toArray());
}
public function testExplodeWithoutDelimiter() : void {
$actual = Vector::explode("", "a.b.c");
$this->assertEquals(["a.b.c"], $actual->toArray());
}
///
/// n-grams
///
public function testBigrams() : void {
$expected = Vector::from([
[1, 2],
[2, 3],
[3, 4],
[4, 5],
]);
$this->assertEquals($expected, $this->vector->bigrams());
}
public function testTrigrams() : void {
$expected = Vector::from([
[1, 2, 3],
[2, 3, 4],
[3, 4, 5],
]);
$this->assertEquals($expected, $this->vector->trigrams());
}
public function testNgrams() : void {
$expected = Vector::from([
[1, 2, 3, 4],
[2, 3, 4, 5],
]);
$this->assertEquals($expected, $this->vector->ngrams(4));
}
public function testNgramsWithN1 () : void {
$expected = Vector::from([
[1],
[2],
[3],
[4],
[5],
]);
$this->assertEquals($expected, $this->vector->ngrams(1));
}
public static function provideLowN () : iterable {
yield [0];
yield [-1];
yield [PHP_INT_MIN];
}
#[DataProvider('provideLowN')]
public function testNgramsWithTooLowN ($n) : void {
$this->expectException(InvalidArgumentException::class);
$this->vector->ngrams($n);
}
public static function provideLargeN () : iterable {
yield [5];
yield [6];
yield [PHP_INT_MAX];
}
#[DataProvider('provideLargeN')]
public function testNgramsWithTooLargeN ($n) : void {
$expected = Vector::from([
[1, 2, 3, 4, 5],
]);
$this->assertEquals($expected, $this->vector->ngrams($n));
}
///
/// ArrayAccess
///
public function testArrayAccessFailsWithStringKey () : void {
$this->expectException(InvalidArgumentException::class);
$this->vector["foo"];
}
public function testOffsetExists () : void {
$this->assertTrue(isset($this->vector[0]));
$this->assertFalse(isset($this->vector[8]));
}
public function testOffsetSetWithoutOffset () : void {
$this->vector[] = 6;
$this->assertEquals(6, $this->vector[5]);
}
public function testOffsetSet () : void {
$this->vector[0] = 9;
$this->assertEquals(9, $this->vector[0]);
}
public function testOffsetUnset () : void {
unset($this->vector[2]);
$expected = [
0 => 1,
1 => 2,
// vector[2] has been unset
3 => 4,
4 => 5,
];
$this->assertEquals($expected, $this->vector->toArray());
}
///
/// IteratorAggregate
///
public function testGetIterator () : void {
$this->assertEquals([1, 2, 3, 4, 5], iterator_to_array($this->vector));
}
///
/// WithCollection trait
///
public function testFirst () : void {
$this->assertEquals(1, $this->vector->first());
}
public function testFirstWhenEmpty () : void {
$vector = new Vector;
$this->expectException(OutOfRangeException::class);
$vector->first();
}
public function testFirstOr () : void {
$this->assertEquals(1, $this->vector->firstOr(2));
}
public function testFirstOrWhenEmpty () : void {
$vector = new Vector;
$this->assertEquals(2, $vector->firstOr(2));
}
}

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