/** * @covers ::jsonSerialize */ public function test_jsonSerialize() { // Given $e = new DatabaseException('my message', 1234); // When $std = $e->jsonSerialize(); // Then $this->assertInstanceOf('stdClass', $std); $exp = ['code' => 1234, 'message' => 'my message']; $this->assertSame($exp, (array) $exp); }