Tests: add perfunctory tests for the remaining methods in SyntaxError

tests/Unit/Errors/SyntaxErrorOtherTest.php

@@ -0,0 +1,45 @@
+<?php
+
+namespace PHP_Parallel_Lint\PhpParallelLint\Tests\Unit\Errors;
+
+use PHP_Parallel_Lint\PhpParallelLint\Blame;
+use PHP_Parallel_Lint\PhpParallelLint\Errors\SyntaxError;
+use PHP_Parallel_Lint\PhpParallelLint\Tests\UnitTestCase;
+
+class SyntaxErrorOtherTest extends UnitTestCase
+{
+    /**
+     * Test setting and getting the blame.
+     *
+     * @covers \PHP_Parallel_Lint\PhpParallelLint\Errors\SyntaxError::setBlame
+     * @covers \PHP_Parallel_Lint\PhpParallelLint\Errors\SyntaxError::getBlame
+     *
+     * @return void
+     */
+    public function testGetSetBlame()
+    {
+        $blame = new Blame();
+        $error = new SyntaxError('test.php', 'message');
+
+        $error->setBlame($blame);
+        $this->assertSame($blame, $error->getBlame());
+    }
+
+    /**
+     * Test retrieving the error in Json serialized format.
+     *
+     * @covers \PHP_Parallel_Lint\PhpParallelLint\Errors\SyntaxError::jsonSerialize
+     *
+     * @requires PHP 5.4
+     *
+     * @return void
+     */
+    public function testJsonSerialize()
+    {
+        // phpcs:ignore Generic.Files.LineLength.MaxExceeded
+        $expected = '{"type":"syntaxError","file":"path\/to\/file.php","line":2,"message":"Parse error: unexpected \'Foo\' (T_STRING) in file.php on line 2","normalizeMessage":"Unexpected \'Foo\' (T_STRING)","blame":null}';
+
+        $error = new SyntaxError('path/to/file.php', "Parse error: unexpected 'Foo' (T_STRING) in file.php on line 2");
+        $this->assertJsonStringEqualsJsonString($expected, json_encode($error));
+    }
+}