--- /dev/null
+<?php
+
+/*
+ * This file is part of Psy Shell.
+ *
+ * (c) 2012-2018 Justin Hileman
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Psy\Test\VersionUpdater;
+
+use Psy\Shell;
+
+class GitHubCheckerTest extends \PHPUnit\Framework\TestCase
+{
+ /**
+ * @dataProvider malformedResults
+ * @expectedException \InvalidArgumentException
+ * @expectedExceptionMessage Unable to check for updates
+ *
+ * @param mixed $input
+ */
+ public function testExceptionInvocation($input)
+ {
+ $checker = $this->getMockBuilder('Psy\\VersionUpdater\\GitHubChecker')
+ ->setMethods(['fetchLatestRelease'])
+ ->getMock();
+ $checker->expects($this->once())->method('fetchLatestRelease')->willReturn($input);
+ $checker->isLatest();
+ }
+
+ /**
+ * @dataProvider jsonResults
+ *
+ * @param bool $assertion
+ * @param mixed $input
+ */
+ public function testDataSetResults($assertion, $input)
+ {
+ $checker = $this->getMockBuilder('Psy\\VersionUpdater\\GitHubChecker')
+ ->setMethods(['fetchLatestRelease'])
+ ->getMock();
+ $checker->expects($this->once())->method('fetchLatestRelease')->willReturn($input);
+ $this->assertSame($assertion, $checker->isLatest());
+ }
+
+ /**
+ * @return array
+ */
+ public function jsonResults()
+ {
+ return [
+ [false, json_decode('{"tag_name":"v9.0.0"}')],
+ [true, json_decode('{"tag_name":"v' . Shell::VERSION . '"}')],
+ [true, json_decode('{"tag_name":"v0.0.1"}')],
+ [true, json_decode('{"tag_name":"v0.4.1-alpha"}')],
+ [true, json_decode('{"tag_name":"v0.4.2-beta3"}')],
+ [true, json_decode('{"tag_name":"v0.0.1"}')],
+ [true, json_decode('{"tag_name":""}')],
+ ];
+ }
+
+ /**
+ * @return array
+ */
+ public function malformedResults()
+ {
+ return [
+ [null],
+ [false],
+ [true],
+ [json_decode('{"foo":"bar"}')],
+ [json_decode('{}')],
+ [json_decode('[]')],
+ [[]],
+ [json_decode('{"tag_name":false"}')],
+ [json_decode('{"tag_name":true"}')],
+ ];
+ }
+}