feat(expect): handle property calls to opposite expectations

src/Expectation.php

@@ -9,7 +9,7 @@ use PHPUnit\Framework\Assert;
 /**
  * @internal
  *
- * @property Expectation $not Creates the opposite expectation.
+ * @property Expectation not Creates the opposite expectation.
  */
 final class Expectation
 {

src/OppositeExpectation.php

@@ -42,4 +42,19 @@ final class OppositeExpectation
 
         throw new ExpectationFailedException(sprintf('@todo'));
     }
+
+    /**
+     * Handle dynamic properties gets into the original expectation.
+     */
+    public function __get(string $name): Expectation
+    {
+        try {
+            /* @phpstan-ignore-next-line */
+            $this->original->{$name};
+        } catch (ExpectationFailedException $e) {
+            return $this->original;
+        }
+
+        throw new ExpectationFailedException(sprintf('@todo'));
+    }
 }

tests/.snapshots/success.txt

@@ -2,6 +2,9 @@
    PASS  Tests\CustomTestCase\ExecutedTest
   ✓ that gets executed
 
+   PASS  Tests\Expect\not
+  ✓ not property calls
+
    PASS  Tests\Expect\toBe
   ✓ expect true → toBeTrue  → and false → toBeFalse 
   ✓ strict comparisons
@@ -309,5 +312,5 @@
    WARN  Tests\Visual\Success
   - visual snapshot of test suite on success
 
-  Tests:  6 skipped, 182 passed
-  Time:   5.72s
+  Tests:  6 skipped, 183 passed
+  Time:   5.77s

tests/Expect/not.php

@@ -0,0 +1,10 @@
+<?php
+
+test('not property calls', function () {
+    expect(true)
+        ->toBeTrue()
+        ->not()->toBeFalse()
+        ->not->toBeFalse
+        ->and(false)
+        ->toBeFalse();
+});