LibTest + test-js: Add initial skelaton of LibTest and migrate code there.

The test-js reporter is arguably the nicest test runner / reporter that
exists in the serenity code base. To the goal of leveling up all the
other unit test environments, start a new LibTest library so that we
can share code and reporting utilities to make all the test systems
look and behave similarly.

2 files changed, 58 insertions, 0 deletions

diff --git a/Userland/Libraries/LibTest/CMakeLists.txt b/Userland/Libraries/LibTest/CMakeLists.txt
new file mode 100644
index 0000000000..954409d28c
--- /dev/null
+++ b/Userland/Libraries/LibTest/CMakeLists.txt
@@ -0,0 +1,2 @@
+
+serenity_install_sources(Libraries/LibTest)
diff --git a/Userland/Libraries/LibTest/Results.h b/Userland/Libraries/LibTest/Results.h
new file mode 100644
index 0000000000..6fb36c9602
--- /dev/null
+++ b/Userland/Libraries/LibTest/Results.h
@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2020, Matthew Olsson <matthewcolsson@gmail.com>
+ * Copyright (c) 2020, Linus Groh <mail@linusgroh.de>
+ * Copyright (c) 2021, Brian Gianforcaro <b.gianfo@gmail.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#pragma once
+
+#include <AK/String.h>
+#include <AK/Vector.h>
+
+namespace Test {
+
+enum class Result {
+    Pass,
+    Fail,
+    Skip,
+};
+
+struct Case {
+    String name;
+    Result result;
+    String details;
+};
+
+struct Suite {
+    String name;
+    // A failed test takes precedence over a skipped test, which both have
+    // precedence over a passed test
+    Result most_severe_test_result { Result::Pass };
+    Vector<Case> tests {};
+};
+
+}