1 files changed, 188 insertions, 0 deletions
diff --git a/tests/unit/Module/HelpTest.php b/tests/unit/Module/HelpTest.php
new file mode 100644
index 000000000..0f1610db5
--- /dev/null
+++ b/tests/unit/Module/HelpTest.php
@@ -0,0 +1,188 @@
+<?php
+/**
+ * SPDX-FileCopyrightText: 2024 Harald Eilertsen
+ * SPDX-FileCopyrightText: 2024 Hubzilla Community
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+class HelpTest extends \Zotlabs\Tests\Unit\Module\TestCase {
+
+	use \phpmock\phpunit\PHPMock;
+
+	/**
+	 * Define the stubs to make sure they work later in the test.
+	 *
+	 * @see https://php-mock.github.io/php-mock-phpunit/api/class-phpmock.phpunit.PHPMock.html#_defineFunctionMock
+	 *
+	 * @beforeClass
+	 */
+	public static function define_stubs(): void {
+		self::defineFunctionMock('Zotlabs\Lib\Traits', 'file_exists');
+		self::defineFunctionMock('Zotlabs\Module', 'file_get_contents');
+	}
+
+	/**
+	 * Test getting a help page when the underlying file exists.
+	 *
+	 * @testWith
+	 *	["md"]
+	 *	["bb"]
+	 *	["html"]
+	 */
+	public function test_get_request_when_help_file_exists(string $ext): void {
+		// Stub file exists, to only retur true for the file with the current
+		// extension
+		$fe_stub = $this->getFunctionMock('Zotlabs\Lib\Traits', 'file_exists');
+		$fe_stub
+			->expects($this->any())
+			->willReturnCallback(
+				fn (string $path) => $path === "doc/en/about/help_topic.{$ext}"
+			);
+
+		// Use a value map to make the `file_get_contents` stub return the
+		// correct content for the file types.
+		$file_content_map = [
+			[ 'doc/en/about/help_topic.md', "### Help heading\n\$Projectname help content" ],
+			[ 'doc/en/about/help_topic.bb', "[h3]Help heading[/h3]\n\n\$Projectname help content" ],
+			[ 'doc/en/about/help_topic.html', "<h3>Help heading</h3><p>\$Projectname help content</p>" ],
+		];
+
+		// Stub `file_get_contents` to plant our own content.
+		$fgc_stub = $this->getFunctionMock('Zotlabs\Module', 'file_get_contents');
+		$fgc_stub
+			->expects($this->once())
+			->willReturn($this->returnValueMap($file_content_map));
+
+
+		$this->get("help/about/help_topic");
+
+		// Check that markdown content was correctly rendered
+		$this->assertPageContains('<h3>Help heading</h3>');
+
+		// Check that `$Projectname` has been translated properly
+		$this->assertPageContains('Hubzilla help content');
+
+		// Check that heading has been set
+		$this->assertPageContains('Hubzilla Documentation: About');
+
+		// Check that page title has been set
+		$this->assertTrue(isset(\App::$page['title']), 'Page title not set');
+		$this->assertStringContainsString('Help', \App::$page['title']);
+		$this->assertStringContainsStringIgnoringCase('Help Topic', \App::$page['title']);
+
+		// Check that nav selection has been set
+		$this->assertTrue(isset(\App::$nav_sel['raw_name']), 'Nav selection raw name not set');
+		$this->assertEquals('Help', \App::$nav_sel['raw_name']);
+
+		$this->assertTrue(isset(\App::$nav_sel['name']), 'Navselection name not set');
+		$this->assertEquals('Help', \App::$nav_sel['name']);
+	}
+
+	public function test_get_request_should_return_404_when_help_file_does_not_exist(): void {
+		// Stub file exists, to only retur true for the file with the current
+		// extension
+		$fe_stub = $this->getFunctionMock('Zotlabs\Lib\Traits', 'file_exists');
+		$fe_stub
+			->expects($this->any())
+			->willReturn(false);
+
+		// Make sure `file_get_contents` is never called by the code.
+		$fgc_stub = $this->getFunctionMock('Zotlabs\Module', 'file_get_contents');
+		$fgc_stub->expects($this->never());
+
+		$this->get("help/this_topic_does_not_exist");
+
+		$this->assertPageContains('not found');
+	}
+
+	public function test_get_request_without_args_redirects_to_about_page(): void {
+		$this->stub_goaway();
+		$this->expectException(\Zotlabs\Tests\Unit\Module\RedirectException::class);
+		$this->expectExceptionMessage('about/about');
+
+		$this->get('help');
+	}
+
+	public function test_find_help_file_returns_first_match(): void {
+		// Stub file exists, to always return true
+		$fe_stub = $this->getFunctionMock('Zotlabs\Lib\Traits', 'file_exists');
+		$fe_stub
+			->expects($this->once())
+			->willReturn(true);
+
+		// Stub `file_get_contents` to plant our own content.
+		$fgc_stub = $this->getFunctionMock('Zotlabs\Module', 'file_get_contents');
+		$fgc_stub
+			->expects($this->once())
+			->with('doc/en/first.md')
+			->willReturn('found');
+
+		$this->get('help/first');
+	}
+
+	public function test_includes(): void {
+		// Stub `file_get_contents` to plant our own content.
+		$fgc_stub = $this->getFunctionMock('Zotlabs\Module', 'file_get_contents');
+		$fgc_stub
+			->expects($this->any())
+			->willReturnCallback(
+				function (string $path): string {
+					if ($path === 'doc/en/sub.md') {
+						return "### This is the included file.";
+					} else {
+						return "### Main topic\n\n#include doc/en/sub.md;";
+					}
+				}
+			);
+
+		// Stub file exists, to always return true
+		$fe_stub = $this->getFunctionMock('Zotlabs\Lib\Traits', 'file_exists');
+		$fe_stub
+			->expects($this->any())
+			->willReturn(true);
+
+		$this->get('help/main');
+
+		$this->assertPageContains('<h3>This is the included file.</h3>');
+	}
+
+	public function test_include_file_of_different_type_than_main_file(): void {
+		// Stub `file_get_contents` to plant our own content.
+		$fgc_stub = $this->getFunctionMock('Zotlabs\Module', 'file_get_contents');
+		$fgc_stub
+			->expects($this->any())
+			->willReturnCallback(
+				function (string $path): string {
+					if ($path === 'doc/en/sub.md') {
+						return "### This is the included file.";
+					} else {
+						return "[h3]Main topic[/h3]\n\n#include doc/en/sub.md;";
+					}
+				}
+			);
+
+		// Stub file exists, only return true for main.bb and sub.md
+		$fe_stub = $this->getFunctionMock('Zotlabs\Lib\Traits', 'file_exists');
+		$fe_stub
+			->expects($this->any())
+			->willReturnCallback(
+				fn (string $path) => (
+					$path === 'doc/en/main.bb' || $path === 'doc/en/sub.md'
+				)
+			);
+
+		$this->get('help/main');
+
+		$this->assertPageContains('<h3>This is the included file.</h3>');
+	}
+
+	/**
+	 * Helper to simplify asserting contents in the rendered page.
+	 *
+	 * @param string $needle	The expected string to find.
+	 */
+	private function assertPageContains(string $needle): void {
+		$this->assertStringContainsString($needle, \App::$page['content']);
+	}
+}