feat: add support for toHaveMethod and toHaveMethods

src/Mixins/Expectation.php

@@ -302,6 +302,36 @@ final class Expectation
         return $this;
     }
 
+    /**
+     * Asserts that the value has the method $name.
+     *
+     * @return self<TValue>
+     */
+    public function toHaveMethod(string $name, string $message = ''): self
+    {
+        $this->toBeObject();
+
+        // @phpstan-ignore-next-line
+        Assert::assertTrue(method_exists($this->value, $name), $message);
+
+        return $this;
+    }
+
+    /**
+     * Asserts that the value has the provided methods $names.
+     *
+     * @param  iterable<array-key, string>  $names
+     * @return self<TValue>
+     */
+    public function toHaveMethods(iterable $names, string $message = ''): self
+    {
+        foreach ($names as $name) {
+            $this->toHaveMethod($name, message: $message);
+        }
+
+        return $this;
+    }
+
     /**
      * Asserts that two variables have the same value.
      *

tests/.snapshots/Failure.php.inc

@@ -1,6 +1,6 @@
 ##teamcity[testSuiteStarted name='Tests/tests/Failure' locationHint='file://tests/.tests/Failure.php' flowId='1234']
 ##teamcity[testStarted name='it can fail with comparison' locationHint='pest_qn://tests/.tests/Failure.php::it can fail with comparison' flowId='1234']
-##teamcity[testFailed name='it can fail with comparison' message='Failed asserting that true matches expected false.' details='at src/Mixins/Expectation.php:312|nat src/Support/ExpectationPipeline.php:75|nat src/Support/ExpectationPipeline.php:79|nat src/Expectation.php:300|nat tests/.tests/Failure.php:6|nat src/Factories/TestCaseMethodFactory.php:106|nat src/Concerns/Testable.php:262|nat src/Support/ExceptionTrace.php:28|nat src/Concerns/Testable.php:262|nat src/Concerns/Testable.php:217|nat src/Kernel.php:79' type='comparisonFailure' actual='true' expected='false' flowId='1234']
+##teamcity[testFailed name='it can fail with comparison' message='Failed asserting that true matches expected false.' details='at src/Mixins/Expectation.php:342|nat src/Support/ExpectationPipeline.php:75|nat src/Support/ExpectationPipeline.php:79|nat src/Expectation.php:300|nat tests/.tests/Failure.php:6|nat src/Factories/TestCaseMethodFactory.php:106|nat src/Concerns/Testable.php:262|nat src/Support/ExceptionTrace.php:28|nat src/Concerns/Testable.php:262|nat src/Concerns/Testable.php:217|nat src/Kernel.php:79' type='comparisonFailure' actual='true' expected='false' flowId='1234']
 ##teamcity[testFinished name='it can fail with comparison' duration='100000' flowId='1234']
 ##teamcity[testStarted name='it can be ignored because of no assertions' locationHint='pest_qn://tests/.tests/Failure.php::it can be ignored because of no assertions' flowId='1234']
 ##teamcity[testIgnored name='it can be ignored because of no assertions' message='This test did not perform any assertions' details='' flowId='1234']

tests/.snapshots/success.txt

@@ -556,6 +556,18 @@
   ✓ it fails
   ✓ it fails with message
 
+   PASS  Tests\Features\Expect\toHaveMethod
+  ✓ pass
+  ✓ failures
+  ✓ failures with message
+  ✓ not failures
+
+   PASS  Tests\Features\Expect\toHaveMethods
+  ✓ pass
+  ✓ failures
+  ✓ failures with custom message
+  ✓ not failures
+
    PASS  Tests\Features\Expect\toHaveProperties
   ✓ pass
   ✓ failures
@@ -902,4 +914,4 @@
    PASS  Tests\Visual\Version
   ✓ visual snapshot of help command output
 
-  Tests:    4 incomplete, 4 todos, 18 skipped, 625 passed (1512 assertions)
+  Tests:    4 incomplete, 4 todos, 18 skipped, 633 passed (1552 assertions)

tests/Features/Expect/toHaveMethod.php

@@ -0,0 +1,28 @@
+<?php
+
+use PHPUnit\Framework\ExpectationFailedException;
+
+$object = new class
+{
+    public function foo(): void
+    {
+    }
+};
+
+test('pass', function () use ($object) {
+    expect($object)->toHaveMethod('foo')
+        ->and($object)->toHaveMethod('foo')
+        ->and($object)->not->toHaveMethod('fooNull');
+});
+
+test('failures', function () use ($object) {
+    expect($object)->toHaveMethod('bar');
+})->throws(ExpectationFailedException::class);
+
+test('failures with message', function () use ($object) {
+    expect($object)->toHaveMethod(name: 'bar', message: 'oh no!');
+})->throws(ExpectationFailedException::class, 'oh no!');
+
+test('not failures', function () use ($object) {
+    expect($object)->not->toHaveMethod('foo');
+})->throws(ExpectationFailedException::class);

tests/Features/Expect/toHaveMethods.php

@@ -0,0 +1,30 @@
+<?php
+
+use PHPUnit\Framework\ExpectationFailedException;
+
+$object = new class
+{
+    public function foo(): void
+    {
+    }
+
+    public function bar(): void
+    {
+    }
+};
+
+test('pass', function () use ($object) {
+    expect($object)->toHaveMethods(['foo', 'bar']);
+});
+
+test('failures', function () use ($object) {
+    expect($object)->toHaveMethods(['foo', 'bar', 'baz']);
+})->throws(ExpectationFailedException::class);
+
+test('failures with custom message', function () use ($object) {
+    expect($object)->toHaveMethods(['foo', 'bar', 'baz'], 'oh no!');
+})->throws(ExpectationFailedException::class, 'oh no!');
+
+test('not failures', function () use ($object) {
+    expect($object)->not->toHaveMethods(['foo', 'bar']);
+})->throws(ExpectationFailedException::class);