LibWeb: Run tests in lagom if ENABLE_LAGOM_LIBWEB is set

Author: https://github.com/BenWiederhake
Commit: https://github.com/SerenityOS/serenity/commit/0687a75eaa
Pull-request: https://github.com/SerenityOS/serenity/pull/16934
Reviewed-by: https://github.com/ADKaster ✅
Reviewed-by: https://github.com/davidot

Meta/Lagom/CMakeLists.txt

@@ -662,6 +662,16 @@ if (BUILD_LAGOM)
                 WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/../../Tests/LibVideo)
         endforeach()
 
+        # Web
+        if (ENABLE_LAGOM_LIBWEB)
+            file(COPY "${SERENITY_PROJECT_ROOT}/Tests/LibWeb/tokenizer-test.html" DESTINATION "./")
+            file(GLOB LIBWEB_TEST_SOURCES CONFIGURE_DEPENDS "../../Tests/LibWeb/*.cpp")
+            foreach(source ${LIBWEB_TEST_SOURCES})
+                lagom_test(${source} LIBS LibWeb
+                    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/../../Tests/LibWeb)
+            endforeach()
+        endif()
+
         # JavaScriptTestRunner + LibTest tests
         # test-js
         add_executable(test-js

Tests/LibWeb/TestHTMLTokenizer.cpp

@@ -201,7 +201,14 @@ TEST_CASE(doctype)
 //       If that changes, or something is added to the test HTML, the hash needs to be adjusted.
 TEST_CASE(regression)
 {
-    auto file = MUST(Core::Stream::File::open("/usr/Tests/LibWeb/tokenizer-test.html"sv, Core::Stream::OpenMode::Read));
+    // This makes sure that the tests will run both on target and in Lagom.
+#ifdef AK_OS_SERENITY
+    StringView path = "/usr/Tests/LibWeb/tokenizer-test.html"sv;
+#else
+    StringView path = "tokenizer-test.html"sv;
+#endif
+
+    auto file = MUST(Core::Stream::File::open(path, Core::Stream::OpenMode::Read));
     auto file_size = MUST(file->size());
     auto content = MUST(ByteBuffer::create_uninitialized(file_size));
     MUST(file->read(content.bytes()));