Add regression test for phpspec#27

fixtures/MockCallMatchFailure.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Prophecy\PhpUnit\Tests\Fixtures;
+
+use PHPUnit\Framework\TestCase;
+use Prophecy\PhpUnit\ProphecyTrait;
+
+class MockCallMatchFailure extends TestCase
+{
+    use ProphecyTrait;
+
+    public function testMethod()
+    {
+        $prophecy = $this->prophesize('DateTime');
+
+        $prophecy->format('Y-m-d')->shouldBeCalledOnce();
+
+        $double = $prophecy->reveal();
+
+        $double->format('wrong-parameter');
+
+        throw new \RuntimeException('ERROR - mock should have already make this test fail earlier');
+    }
+}

tests/ProphecyTraitTest.php

@@ -5,6 +5,7 @@
 use PHPUnit\Framework\TestCase;
 use PHPUnit\Runner\BaseTestRunner;
 use Prophecy\PhpUnit\Tests\Fixtures\Error;
+use Prophecy\PhpUnit\Tests\Fixtures\MockCallMatchFailure;
 use Prophecy\PhpUnit\Tests\Fixtures\MockFailure;
 use Prophecy\PhpUnit\Tests\Fixtures\SpyFailure;
 use Prophecy\PhpUnit\Tests\Fixtures\Success;
@@ -61,6 +62,19 @@ public function testMockPredictionFailure(): void
         $this->assertSame(BaseTestRunner::STATUS_FAILURE, $test->getStatus());
     }
 
+    public function testMockCallDoesntMatchExpectation(): void
+    {
+        $test = new MockCallMatchFailure('testMethod');
+
+        $result = $test->run();
+
+        $this->assertSame(0, $result->errorCount());
+        $this->assertSame(1, $result->failureCount());
+        $this->assertCount(1, $result);
+        $this->assertSame(1, $test->getNumAssertions());
+        $this->assertSame(BaseTestRunner::STATUS_FAILURE, $test->getStatus());
+    }
+
     public function testDoublingError(): void
     {
         $test = new Error('testMethod');