@@ -72,6 +72,7 @@
     * Change: Prevent PHP warnings due to missing core-related generated files
     * New: Add tests to verify filtered values output nothing when empty
     * New: Add test to check that the appropriate number of framework strings are translatable
+    * New: Add tests for `help_tabs_content()`
     * Change: In bootstrap, add backcompat for PHPUnit pre-v6.0
     * Fix: Update tests to handle deprecation of core's `print_inline_script()`
     * Change: Explicitly define return types for overridden methods
 
@@ -5,6 +5,6 @@ The following list comprises ideas, suggestions, and known issues, all of which
 ***This is not a roadmap or a task list.*** Just because something is listed does not necessarily mean it will ever actually get implemented. Some might be bad ideas. Some might be impractical. Some might either not benefit enough users to justify the effort or might negatively impact too many existing users. Or I may not have the time to devote to the task.
 
 * See if the styles can affect customizer. If so, disable by default (but maybe add a setting to enable for customizer.)
-* Unit tests: Add test coverage for: `help_tabs_content()`, `load_config()`, `show_admin_notices()`
+* Unit tests: Add test coverage for: `load_config()`, `show_admin_notices()`
 
 Feel free to make your own suggestions or champion for something already on the list (via the [plugin's support forum on WordPress.org](https://wordpress.org/support/plugin/add-admin-css/) or on [GitHub](https://github.com/coffee2code/add-admin-css/) as an issue or PR).
@@ -280,6 +280,70 @@ public function test_options_page_description() {
 		$this->expectOutputRegex( '~^' . preg_quote( $expected ) . '$~', $this->obj->options_page_description() );
 	}
 
+	/*
+	 * help_tabs_content()
+	 */
+
+	 public function test_help_tabs_content_adds_advanced_tips_help_tab() {
+		// Create a dummy screen with an add_help_tab() method.
+		$screen = new class {
+			public $help_tabs = [];
+			public function add_help_tab( $args ) {
+				$this->help_tabs[] = $args;
+			}
+		};
+
+		$this->obj->id_base      = 'my_id_base';
+		$this->obj->options_page = 'my_options_slug';
+
+		$this->obj->help_tabs_content( $screen );
+
+		$this->assertNotEmpty( $screen->help_tabs, 'No help tabs were added.' );
+
+		$tab = $screen->help_tabs[0];
+
+		$this->assertArrayHasKey( 'id', $tab );
+		$this->assertSame(
+			'c2c-advanced-tips-my_id_base',
+			$tab['id'],
+			'Help‐tab ID did not match expected pattern.'
+		);
+
+		$this->assertArrayHasKey( 'title', $tab );
+		$this->assertSame(
+			'Advanced Tips',
+			$tab['title'],
+			'Help‐tab title should be "Advanced Tips".'
+		);
+	}
+
+	public function test_help_tabs_content_uses_contextual_help_for_content() {
+		// Create a dummy screen with an add_help_tab() method.
+		$screen = new class {
+			public $help_tabs = [];
+			public function add_help_tab( $args ) {
+				$this->help_tabs[] = $args;
+			}
+		};
+
+		$this->obj->id_base      = 'foo';
+		$this->obj->options_page = 'bar_options';
+
+		$expected_content = $this->obj->contextual_help( '', 'bar_options' );
+
+		$this->obj->help_tabs_content( $screen );
+
+		$this->assertNotEmpty( $screen->help_tabs, 'No help tabs were added.' );
+		$tab = $screen->help_tabs[0];
+
+		$this->assertArrayHasKey( 'content', $tab );
+		$this->assertSame(
+			$expected_content,
+			$tab['content'],
+			'Help‐tab content should be generated via contextual_help().'
+		);
+	}
+
 	/**
 	 * @dataProvider get_css_file_links
 	 */