Convert tests to Pest

README.md

@@ -2,8 +2,6 @@
 
 This project contains PHP utility classes whose functionality is inspired by their F# counterparts.
 
-The v2 series requires at least PHP 8.4. A similar API exists for PHP 8.2 - 8.3 in version 1 of this project; see its README for specifics.
-
 ## What It Provides
 
 This early-stage library currently provides two classes, both of which are designed to wrap values and indicate the state of the action that produced them. `Option<T>` represents a variable that may or may not have a value. `Result<TOK, TError>` represents the result of an action; the "ok" and "error" states both provide a value.
@@ -13,12 +11,12 @@ This early-stage library currently provides two classes, both of which are desig
 | **Creating**                                      | `::Some(T)` for Some                                  | `::OK(TOK)` for OK                                                          |
 |                                                   | `::None()` for None                                   | `::Error(TError)` for Error                                                 |
 |                                                   | `::of($value)` _None if `null`_                       |                                                                             |
-| **Querying**                                      | `->isSome: bool`                                      | `->isOK: bool`                                                              |
-|                                                   | `->isNone: bool`                                      | `->isError: bool`                                                           |
+| **Querying**                                      | `->isSome(): bool`                                    | `->isOK(): bool`                                                            |
+|                                                   | `->isNone(): bool`                                    | `->isError(): bool`                                                         |
 |                                                   | `->contains(T, $strict = true): bool`                 | `->contains(TOK, $strict = true): bool`                                     |
 |                                                   | `->exists(callable(T): bool): bool`                   | `->exists(callable(TOK): bool): bool`                                       |
-| **Reading**<br>                                   | `->value: T`                                          | `->ok: TOK`                                                                 |
-| _all throw if called on missing value_            |                                                       | `->error: TError`                                                           |
+| **Reading**<br>                                   | `->get(): T`                                          | `->getOK(): TOK`                                                            |
+| _all throw if called on missing value_            |                                                       | `->getError(): TError`                                                      |
 | **Transforming**<br>                              | `->map(callable(T): TMapped): Option<TMapped>`        | `->map(callable(TOK): TMapped): Result<TMapped, TError>`                    |
 | _all still `Option` or `Result`_                  |                                                       | `->mapError(callable(TError): TMapped): Result<TOK, TMapped>`               |
 | **Iterating**                                     | `->iter(callable(T): void): void`                     | `->iter(callable(TOK): void): void`                                         |

composer.json

@@ -17,7 +17,7 @@
     "rss": "https://git.bitbadger.solutions/bit-badger/inspired-by-fsharp.rss"
   },
   "require": {
-    "php": ">=8.4"
+    "php": "8.2 - 8.3"
   },
   "require-dev": {
     "phpoption/phpoption": "^1",

composer.lock

@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "993898f46125d481cf00405cbe9c4069",
+    "content-hash": "87ff0fadc5082e5dfa570a11147687dd",
     "packages": [],
     "packages-dev": [
         {
@@ -3826,7 +3826,7 @@
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": {
-        "php": ">=8.4"
+        "php": "8.2 - 8.3"
     },
     "platform-dev": [],
     "plugin-api-version": "2.6.0"

src/Option.php

@@ -25,38 +25,50 @@ use InvalidArgumentException;
  *
  * @template T The type of value represented by this option
  */
-class Option
+readonly class Option
 {
     /** @var T|null $value The value for this option  */
-    private mixed $val;
+    private mixed $value;
 
     /**
      * @param T|null $value The possibly null value for this option
      */
     private function __construct(mixed $value = null)
     {
-        $this->val = $value;
+        $this->value = $value;
     }
 
     /**
-     * @var T The value of this option (read-only)
-     * @throws InvalidArgumentException If called on a `None` option
+     * Get the value of this option
+     *
+     * @return T The value of the option
      */
-    public mixed $value {
-        get => match ($this->val) {
-            null    => throw new InvalidArgumentException('Cannot get the value of a None option'),
-            default => $this->val,
+    public function get(): mixed
+    {
+        return match (true) {
+            $this->isSome() => $this->value,
+            default         => throw new InvalidArgumentException('Cannot get the value of a None option'),
         };
     }
 
-    /** @var bool True if the option is `None`, false if it is `Some` */
-    public bool $isNone {
-        get => is_null($this->val);
+    /**
+     * Does this option have a `None` value?
+     *
+     * @return bool True if the option is `None`, false if it is `Some`
+     */
+    public function isNone(): bool
+    {
+        return is_null($this->value);
     }
 
-    /** @var bool True if the option is `Some`, false if it is `None` */
-    public bool $isSome{
-        get => !$this->isNone;
+    /**
+     * Does this option have a `Some` value?
+     *
+     * @return bool True if the option is `Some`, false if it is `None`
+     */
+    public function isSome(): bool
+    {
+        return !$this->isNone();
     }
 
     /**
@@ -67,7 +79,7 @@ class Option
      */
     public function getOrDefault(mixed $default): mixed
     {
-        return $this->val ?? $default;
+        return $this->value ?? $default;
     }
 
     /**
@@ -79,19 +91,18 @@ class Option
      */
     public function getOrCall(callable $f): mixed
     {
-        return $this->val ?? $f();
+        return $this->value ?? $f();
     }
 
     /**
-     * Get the value, or throw the exception using the given function
-     *
+     * Get the value, or throw the
      * @param callable(): Exception $exFunc A function to construct the exception to throw
      * @return T The value of the option if `Some`
      * @throws Exception If the option is `None`
      */
     public function getOrThrow(callable $exFunc): mixed
     {
-        return $this->val ?? throw $exFunc();
+        return $this->value ?? throw $exFunc();
     }
 
     /**
@@ -106,7 +117,7 @@ class Option
      */
     public function bind(callable $f): Option
     {
-        return $this->isNone ? $this : $f($this->val);
+        return $this->isNone() ? $this : $f($this->get());
     }
 
     /**
@@ -119,8 +130,8 @@ class Option
     public function contains(mixed $value, bool $strict = true): bool
     {
         return match (true) {
-            $this->isNone => false,
-            default       => $strict ? $this->val === $value : $this->val == $value,
+            $this->isNone() => false,
+            default         => $strict ? $this->value === $value : $this->value == $value,
         };
     }
 
@@ -132,7 +143,7 @@ class Option
      */
     public function exists(callable $f): bool
     {
-        return $this->isSome ? $f($this->val) : false;
+        return $this->isSome() ? $f($this->value) : false;
     }
 
     /**
@@ -144,7 +155,7 @@ class Option
      */
     public function map(callable $f): self
     {
-        return $this->isSome ? self::Some($f($this->val)) : $this;
+        return $this->isSome() ? self::Some($f($this->get())) : $this;
     }
 
     /**
@@ -154,8 +165,8 @@ class Option
      */
     public function iter(callable $f): void
     {
-        if ($this->isSome) {
-            $f($this->val);
+        if ($this->isSome()) {
+            $f($this->value);
         }
     }
 
@@ -167,7 +178,7 @@ class Option
      */
     public function filter(callable $f): self
     {
-        return $this->isNone || $this->exists($f) ? $this : self::None();
+        return $this->isNone() || $this->exists($f) ? $this : self::None();
     }
 
     /**
@@ -177,7 +188,7 @@ class Option
      */
     public function unwrap(): mixed
     {
-        return $this->val;
+        return $this->value;
     }
 
     /**
@@ -199,7 +210,7 @@ class Option
      */
     public function toArray(): array
     {
-        return $this->isSome ? [$this->val] : [];
+        return $this->isSome() ? [$this->value] : [];
     }
 
     /**
@@ -210,8 +221,8 @@ class Option
     public function toPhpOption(): mixed
     {
         return match (true) {
-            $this->isNone && class_exists('PhpOption\None') => call_user_func('PhpOption\None::create'),
-            class_exists('PhpOption\Some') => call_user_func('PhpOption\Some::create', $this->val),
+            $this->isNone() && class_exists('PhpOption\None') => call_user_func('PhpOption\None::create'),
+            class_exists('PhpOption\Some') => call_user_func('PhpOption\Some::create', $this->value),
             default => throw new Error('PhpOption types could not be found'),
         };
     }
@@ -250,7 +261,7 @@ class Option
     {
         return match (true) {
             is_object($value) && is_a($value, 'PhpOption\Option') =>
-                $value->isDefined() ? self::Some($value->get()) : self::None(),
+            $value->isDefined() ? self::Some($value->get()) : self::None(),
             default                     => new self($value),
         };
     }

src/Result.php

@@ -25,7 +25,7 @@ use InvalidArgumentException;
  * @template TOK The type of the OK result
  * @template TError The type of the error result
  */
-class Result
+readonly class Result
 {
     /** @var Option<TOK> The OK value for this result */
     private Option $okValue;
@@ -45,24 +45,46 @@ class Result
         $this->errorValue = Option::of($errorValue);
     }
 
-    /** @var TOK The OK value (will throw if result is not OK) */
-    public mixed $ok {
-        get => $this->okValue->value;
+    /**
+     * Get the value for an `OK` result
+     *
+     * @return TOK The OK value for this result
+     * @throws InvalidArgumentException If the result is an `Error` result
+     */
+    public function getOK(): mixed
+    {
+        return $this->okValue->get();
     }
 
-    /** @var TError The error value (will throw if result is not Error) */
-    public mixed $error {
-        get => $this->errorValue->value;
+    /**
+     * Get the value for an `Error` result
+     *
+     * @return TError The error value for this result
+     * @throws InvalidArgumentException If the result is an `OK` result
+     */
+    public function getError(): mixed
+    {
+        return $this->errorValue->get();
     }
 
-    /** @var bool True if the result is `OK`, false if it is `Error` */
-    public bool $isOK {
-        get => $this->okValue->isSome;
+    /**
+     * Is this result `OK`?
+     *
+     * @return bool True if the result is `OK`, false if it is `Error`
+     */
+    public function isOK(): bool
+    {
+        return $this->okValue->isSome();
     }
 
-    /** @var bool True if the result is `Error`, false if it is `OK` */
-    public bool $isError {
-        get => $this->errorValue->isSome;
+    /**
+     * Is this result `Error`?
+     *
+     * @return bool True if the result is `Error`, false if it is `OK`
+     */
+    public function isError(): bool
+    {
+        return $this->errorValue->isSome();
     }
 
     /**
@@ -78,7 +100,7 @@ class Result
      */
     public function bind(callable $f): Result
     {
-        return $this->isError ? $this : $f($this->ok);
+        return $this->isError() ? $this : $f($this->getOK());
     }
 
     /**
@@ -91,8 +113,8 @@ class Result
     public function contains(mixed $value, bool $strict = true): bool
     {
         return match (true) {
-            $this->isError => false,
-            default        => $this->okValue->contains($value, $strict),
+            $this->isError() => false,
+            default          => $this->okValue->contains($value, $strict),
         };
     }
 
@@ -104,7 +126,7 @@ class Result
      */
     public function exists(callable $f): bool
     {
-        return $this->isOK ? $f($this->ok) : false;
+        return $this->isOK() ? $f($this->okValue->get()) : false;
     }
 
     /**
@@ -116,7 +138,7 @@ class Result
      */
     public function map(callable $f): self
     {
-        return $this->isOK ? self::OK($f($this->ok)) : $this;
+        return $this->isOK() ? self::OK($f($this->getOK())) : $this;
     }
 
     /**
@@ -128,7 +150,7 @@ class Result
      */
     public function mapError(callable $f): self
     {
-        return $this->isError ? self::Error($f($this->error)) : $this;
+        return $this->isError() ? self::Error($f($this->getError())) : $this;
     }
 
     /**
@@ -138,8 +160,8 @@ class Result
      */
     public function iter(callable $f): void
     {
-        if ($this->isOK) {
-            $f($this->ok);
+        if ($this->isOK()) {
+            $f($this->getOK());
         }
     }
 
@@ -160,7 +182,7 @@ class Result
      */
     public function toOption(): Option
     {
-        return $this->isOK ? Option::Some($this->ok) : Option::None();
+        return $this->isOK() ? Option::Some($this->getOK()) : Option::None();
     }
 
     /**

tests/Unit/OptionTest.php

@@ -9,30 +9,30 @@ declare(strict_types=1);
 use BitBadger\InspiredByFSharp\Option;
 use PhpOption\{None, Some};
 
-describe('->value', function () {
+describe('->get()', function () {
     test('retrieves the value for Some', function () {
-        expect(Option::Some(9)->value)->toBe(9);
+        expect(Option::Some(9)->get())->toBe(9);
     });
     test('throws an exception for None', function () {
-        expect(fn() => Option::None()->value)->toThrow(InvalidArgumentException::class);
+        expect(fn() => Option::None()->get())->toThrow(InvalidArgumentException::class);
     });
 });
 
-describe('->isNone', function () {
+describe('->isNone()', function () {
     test('returns true for None', function () {
-        expect(Option::None()->isNone)->toBeTrue();
+        expect(Option::None()->isNone())->toBeTrue();
     });
     test('returns false for Some', function () {
-        expect(Option::Some(8)->isNone)->toBeFalse();
+        expect(Option::Some(8)->isNone())->toBeFalse();
     });
 });
 
-describe('->isSome', function () {
+describe('->isSome()', function () {
     test('returns false for None', function () {
-        expect(Option::None()->isSome)->toBeFalse();
+        expect(Option::None()->isSome())->toBeFalse();
     });
     test('returns true for Some', function () {
-        expect(Option::Some('boo')->isSome)->toBeTrue();
+        expect(Option::Some('boo')->isSome())->toBeTrue();
     });
 });
 
@@ -68,14 +68,14 @@ describe('->bind()', function () {
     test('returns None when binding against None', function () {
         $original = Option::None();
         $bound = $original->bind(fn($it) => Option::Some('value'));
-        expect($bound)->isNone->toBeTrue()->and($bound)->toBe($original);
+        expect($bound)->isNone()->toBeTrue()->and($bound)->toBe($original);
     });
     test('returns Some when binding against Some with Some', function () {
         expect(Option::Some('hello')->bind(fn($it) => Option::Some('goodbye')))
-            ->isSome->toBeTrue()->value->toBe('goodbye');
+            ->isSome()->toBeTrue()->get()->toBe('goodbye');
     });
     test('returns None when binding against Some with None', function () {
-        expect(Option::Some('greetings')->bind(fn($it) => Option::None()))->isNone->toBeTrue();
+        expect(Option::Some('greetings')->bind(fn($it) => Option::None()))->isNone()->toBeTrue();
     });
 });
 
@@ -119,13 +119,13 @@ describe('->map()', function () {
             return 'hello';
         });
         expect($mapped)
-            ->isNone->toBeTrue()
+            ->isNone()->toBeTrue()
             ->and($tattle->called)->toBeFalse()
             ->and($mapped)->toBe($none);
     });
     test('maps value for Some', function () {
         expect(Option::Some('abc ')->map(fn($it) => str_repeat($it, 2)))
-            ->isSome->toBeTrue()->value->toBe('abc abc ');
+            ->isSome()->toBeTrue()->get()->toBe('abc abc ');
     });
     test('throws an exception if mapping returns null', function () {
         expect(fn() => Option::Some('oof')->map(fn($it) => null))->toThrow(InvalidArgumentException::class);
@@ -155,7 +155,7 @@ describe('->filter()', function () {
             return true;
         });
         expect($filtered)
-            ->isNone->toBeTrue()
+            ->isNone()->toBeTrue()
             ->and($tattle->called)->toBeFalse()
             ->and($filtered)->toBe($none);
     });
@@ -163,12 +163,12 @@ describe('->filter()', function () {
         $some     = Option::Some(12);
         $filtered = $some->filter(fn($it) => $it % 2 === 0);
         expect($filtered)
-            ->isSome->toBeTrue()
-            ->value->toBe(12)
+            ->isSome()->toBeTrue()
+            ->get()->toBe(12)
             ->and($filtered)->toBe($some);
     });
     test('returns None when filter is not matched', function () {
-        expect(Option::Some(23)->filter(fn($it) => $it % 2 === 0)->isNone)->toBeTrue();
+        expect(Option::Some(23)->filter(fn($it) => $it % 2 === 0)->isNone())->toBeTrue();
     });
 });
 
@@ -186,14 +186,14 @@ describe('->tap()', function () {
         $value    = '';
         $original = Option::None();
         $tapped   = $original->tap(
-            function (Option $it) use (&$value) { $value = $it->isSome ? $it->value : 'none'; });
+            function (Option $it) use (&$value) { $value = $it->isSome() ? $it->get() : 'none'; });
         expect($value)->toBe('none')->and($original)->toBe($tapped);
     });
     test('is called for Some', function () {
         $value    = '';
         $original = Option::Some('testing');
         $tapped   = $original->tap(
-            function (Option $it) use (&$value) { $value = $it->isSome ? $it->value : 'none'; });
+            function (Option $it) use (&$value) { $value = $it->isSome() ? $it->get() : 'none'; });
         expect($value)->toBe('testing')->and($original)->toBe($tapped);
     });
 });
@@ -225,7 +225,7 @@ describe('->toPhpOption()', function () {
 
 describe('::Some()', function () {
     test('creates a Some option when given a value', function () {
-        expect(Option::Some('hello'))->not->toBeNull()->isSome->toBeTrue();
+        expect(Option::Some('hello'))->not->toBeNull()->isSome()->toBeTrue();
     });
     test('throws an exception when given null', function () {
         expect(fn() => Option::Some(null))->toThrow(InvalidArgumentException::class);
@@ -234,23 +234,23 @@ describe('::Some()', function () {
 
 describe('::None()', function () {
     test('creates a None option', function () {
-        expect(Option::None())->not->toBeNull()->isNone->toBeTrue();
+        expect(Option::None())->not->toBeNull()->isNone()->toBeTrue();
     });
 });
 
 describe('::of()', function () {
     test('creates a None option when given null', function () {
-        expect(Option::of(null))->not->toBeNull()->isNone->toBeTrue();
+        expect(Option::of(null))->not->toBeNull()->isNone()->toBeTrue();
     });
     test('creates a Some option when given a value', function () {
         expect(Option::of('test'))->not->toBeNull()
-            ->isSome->toBeTrue()
-            ->value->toBe('test');
+            ->isSome()->toBeTrue()
+            ->get()->toBe('test');
     });
     test('creates a None option when given PhpOption\None', function () {
-        expect(Option::of(None::create()))->isNone->toBeTrue();
+        expect(Option::of(None::create()))->isNone()->toBeTrue();
     });
     test('creates a Some option when given PhpOption\Some', function () {
-        expect(Option::of(Some::create('something')))->isSome->toBeTrue()->value->toBe('something');
+        expect(Option::of(Some::create('something')))->isSome()->toBeTrue()->get()->toBe('something');
     });
 });

tests/Unit/ResultTest.php

@@ -8,55 +8,55 @@ declare(strict_types=1);
 
 use BitBadger\InspiredByFSharp\{Option, Result};
 
-describe('->ok', function () {
+describe('->getOK()', function () {
     test('returns OK value for OK result', function () {
-        expect(Result::OK('yay')->ok)->toBe('yay');
+        expect(Result::OK('yay')->getOK())->toBe('yay');
     });
     test('throws an exception for Error result', function () {
-        expect(fn() => Result::Error('whoops')->ok)->toThrow(InvalidArgumentException::class);
+        expect(fn() => Result::Error('whoops')->getOK())->toThrow(InvalidArgumentException::class);
     });
 });
 
-describe('->error', function () {
+describe('->getError()', function () {
     test('throws an exception for OK result', function () {
-        expect(fn() => Result::OK('yeah')->error)->toThrow(InvalidArgumentException::class);
+        expect(fn() => Result::OK('yeah')->getError())->toThrow(InvalidArgumentException::class);
     });
     test('returns Error value for Error result', function () {
-        expect(Result::Error('boo')->error)->toBe('boo');
+        expect(Result::Error('boo')->getError())->toBe('boo');
     });
 });
 
-describe('->isOK', function () {
+describe('->isOK()', function () {
     test('returns true for OK result', function () {
-        expect(Result::OK('ok')->isOK)->toBeTrue();
+        expect(Result::OK('ok')->isOK())->toBeTrue();
     });
     test('returns false for Error result', function () {
-        expect(Result::Error('error')->isOK)->toBeFalse();
+        expect(Result::Error('error')->isOK())->toBeFalse();
     });
 });
 
-describe('->isError', function () {
+describe('->isError()', function () {
     test('returns false for OK result', function () {
-        expect(Result::OK('fine')->isError)->toBeFalse();
+        expect(Result::OK('fine')->isError())->toBeFalse();
     });
     test('returns true for Error result', function () {
-        expect(Result::Error('not ok')->isError)->toBeTrue();
+        expect(Result::Error('not ok')->isError())->toBeTrue();
     });
 });
 
 describe('->bind()', function () {
     test('returns OK when binding against OK with OK', function () {
         expect(Result::OK('one')->bind(fn($it) => Result::OK("$it two")))
-            ->isOK->toBeTrue()->ok->toBe('one two');
+            ->isOK()->toBeTrue()->getOK()->toBe('one two');
     });
     test('returns Error when binding against OK with Error', function () {
         expect(Result::OK('three')->bind(fn($it) => Result::Error('back to two')))
-            ->isError->toBeTrue()->error->toBe('back to two');
+            ->isError()->toBeTrue()->getError()->toBe('back to two');
     });
     test('returns Error when binding against Error', function () {
         $original = Result::Error('oops');
         $result   = $original->bind(fn($it) => Result::OK('never mind - it worked!'));
-        expect($result->isError)->toBeTrue()
+        expect($result->isError())->toBeTrue()
             ->and($result)->toBe($original);
     });
 });
@@ -94,7 +94,7 @@ describe('->exists()', function () {
 describe('->map()', function () {
     test('maps value for OK', function () {
         expect(Result::OK('yard')->map(fn($it) => strrev($it)))
-            ->isOK->toBeTrue()->ok->toBe('dray');
+            ->isOK()->toBeTrue()->getOK()->toBe('dray');
     });
     test('throws an exception for OK when mapping result is null', function () {
         expect(fn() => Result::OK('not null')->map(fn($it) => null))->toThrow(InvalidArgumentException::class);
@@ -108,7 +108,7 @@ describe('->map()', function () {
             return 'hello';
         });
         expect($mapped)
-            ->isError->toBeTrue()
+            ->isError()->toBeTrue()
             ->and($tattle->called)->toBeFalse()
             ->and($mapped)->toBe($error);
     });
@@ -124,13 +124,13 @@ describe('->mapError()', function () {
             return 'hello';
         });
         expect($mapped)
-            ->isOK->toBeTrue()
+            ->isOK()->toBeTrue()
             ->and($tattle->called)->toBeFalse()
             ->and($mapped)->toBe($ok);
     });
     test('maps value for Error', function () {
         expect(Result::Error('taco')->mapError(fn($it) => str_repeat('*', strlen($it))))
-            ->isError->toBeTrue()->error->toBe('****');
+            ->isError()->toBeTrue()->getError()->toBe('****');
     });
     test('throws an exception for Error when mapping result is null', function () {
         expect(fn() => Result::Error('pizza')->mapError(fn($it) => null))->toThrow(InvalidArgumentException::class);
@@ -161,10 +161,10 @@ describe('->toArray()', function () {
 
 describe('->toOption()', function () {
     test('returns a Some option for OK', function () {
-        expect(Result::OK(99)->toOption())->isSome->toBeTrue()->value->toBe(99);
+        expect(Result::OK(99)->toOption())->isSome()->toBeTrue()->get()->toBe(99);
     });
     test('returns a None option for Error', function () {
-        expect(Result::Error('file not found')->toOption())->isNone->toBeTrue();
+        expect(Result::Error('file not found')->toOption())->isNone()->toBeTrue();
     });
 });
 
@@ -173,7 +173,7 @@ describe('->tap()', function () {
         $value = '';
         $original = Result::OK('working');
         $tapped = $original->tap(function (Result $it) use (&$value) {
-            $value = $it->isOK ? 'OK: ' . $it->ok : 'Error: ' . $it->error;
+            $value = $it->isOK() ? 'OK: ' . $it->getOK() : 'Error: ' . $it->getError();
         });
         expect($value)->toBe('OK: working')->and($tapped)->toBe($original);
     });
@@ -181,7 +181,7 @@ describe('->tap()', function () {
         $value    = '';
         $original = Result::Error('failed');
         $tapped   = $original->tap(function (Result $it) use (&$value) {
-            $value = $it->isOK ? 'OK: ' . $it->ok : 'Error: ' . $it->error;
+            $value = $it->isOK() ? 'OK: ' . $it->getOK() : 'Error: ' . $it->getError();
         });
         expect($value)->toBe('Error: failed')->and($tapped)->toBe($original);
     });
@@ -189,7 +189,7 @@ describe('->tap()', function () {
 
 describe('::OK()', function () {
     test('creates an OK result for a non-null value', function () {
-        expect(Result::OK('something'))->isOK->toBeTrue()->ok->toBe('something');
+        expect(Result::OK('something'))->isOK()->toBeTrue()->getOK()->toBe('something');
     });
     test('throws an exception for OK with a null value', function () {
         expect(fn() => Result::OK(null))->toThrow(InvalidArgumentException::class);
@@ -198,7 +198,7 @@ describe('::OK()', function () {
 
 describe('::Error()', function () {
     test('creates an Error result for a non-null value', function () {
-        expect(Result::Error('sad trombone'))->isError->toBeTrue()->error->toBe('sad trombone');
+        expect(Result::Error('sad trombone'))->isError()->toBeTrue()->getError()->toBe('sad trombone');
     });
     test('throws an exception for Error with a null value', function () {
         expect(fn() => Result::Error(null))->toThrow(InvalidArgumentException::class);