From f44bc19ce15def3ac1e2a336cb9d4aec4a680a8f Mon Sep 17 00:00:00 2001
From: Max Kellermann <max.kellermann@gmail.com>
Date: Thu, 14 Jul 2022 17:57:34 +0200
Subject: [PATCH] test/fs/TestPath: new unit test

---
 test/fs/TestPath.cxx | 81 ++++++++++++++++++++++++++++++++++++++++++++
 test/fs/meson.build  |  1 +
 2 files changed, 82 insertions(+)
 create mode 100644 test/fs/TestPath.cxx

diff --git a/test/fs/TestPath.cxx b/test/fs/TestPath.cxx
new file mode 100644
index 000000000..a0c991da2
--- /dev/null
+++ b/test/fs/TestPath.cxx
@@ -0,0 +1,81 @@
+/*
+ * Copyright 2003-2022 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "fs/Path.hxx"
+#include "fs/AllocatedPath.hxx"
+
+#include <gtest/gtest.h>
+
+TEST(Path, Basic)
+{
+	EXPECT_TRUE(Path{nullptr}.IsNull());
+	EXPECT_FALSE(Path::FromFS(PATH_LITERAL("")).IsNull());
+	EXPECT_EQ(Path::FromFS(PATH_LITERAL("")).length(), 0U);
+	EXPECT_EQ(Path::FromFS(PATH_LITERAL("foo")).length(), 3U);
+	EXPECT_EQ(Path::FromFS(PATH_LITERAL("foo")).ToUTF8(), "foo");
+}
+
+TEST(Path, GetBase)
+{
+	EXPECT_STREQ(Path::FromFS(PATH_LITERAL("")).GetBase().c_str(), "");
+	EXPECT_STREQ(Path::FromFS(PATH_LITERAL("foo")).GetBase().c_str(), "foo");
+	EXPECT_STREQ(Path::FromFS(PATH_LITERAL("./foo")).GetBase().c_str(), "foo");
+	EXPECT_STREQ(Path::FromFS(PATH_LITERAL("../foo")).GetBase().c_str(), "foo");
+	EXPECT_STREQ(Path::FromFS(PATH_LITERAL("foo/bar")).GetBase().c_str(), "bar");
+	EXPECT_STREQ(Path::FromFS(PATH_LITERAL("/foo/bar")).GetBase().c_str(), "bar");
+}
+
+TEST(Path, GetDirectoryName)
+{
+	EXPECT_STREQ(Path::FromFS(PATH_LITERAL("")).GetDirectoryName().c_str(), ".");
+	EXPECT_STREQ(Path::FromFS(PATH_LITERAL("foo")).GetDirectoryName().c_str(), ".");
+	EXPECT_STREQ(Path::FromFS(PATH_LITERAL("./foo")).GetDirectoryName().c_str(), ".");
+	EXPECT_STREQ(Path::FromFS(PATH_LITERAL("../foo")).GetDirectoryName().c_str(), "..");
+	EXPECT_STREQ(Path::FromFS(PATH_LITERAL("foo/bar")).GetDirectoryName().c_str(), "foo");
+	EXPECT_STREQ(Path::FromFS(PATH_LITERAL("/foo/bar")).GetDirectoryName().c_str(), "/foo");
+	EXPECT_STREQ(Path::FromFS(PATH_LITERAL("/foo/")).GetDirectoryName().c_str(), "/foo");
+	EXPECT_STREQ(Path::FromFS(PATH_LITERAL("/foo/bar/baz")).GetDirectoryName().c_str(), "/foo/bar");
+}
+
+TEST(Path, Relative)
+{
+	EXPECT_EQ(Path::FromFS(PATH_LITERAL("foo")).Relative(Path::FromFS(PATH_LITERAL(""))), nullptr);
+	EXPECT_EQ(Path::FromFS(PATH_LITERAL("/bar")).Relative(Path::FromFS(PATH_LITERAL("/foo/bar"))), nullptr);
+	EXPECT_STREQ(Path::FromFS(PATH_LITERAL("/foo")).Relative(Path::FromFS(PATH_LITERAL("/foo/bar"))), "bar");
+	EXPECT_STREQ(Path::FromFS(PATH_LITERAL("/foo/")).Relative(Path::FromFS(PATH_LITERAL("/foo/bar"))), "bar");
+	EXPECT_STREQ(Path::FromFS(PATH_LITERAL("/foo")).Relative(Path::FromFS(PATH_LITERAL("/foo///bar"))), "bar");
+	EXPECT_STREQ(Path::FromFS(PATH_LITERAL("/foo")).Relative(Path::FromFS(PATH_LITERAL("/foo///"))), "");
+}
+
+TEST(Path, Extension)
+{
+	EXPECT_EQ(Path::FromFS(PATH_LITERAL("foo")).GetExtension(), nullptr);
+	EXPECT_EQ(Path::FromFS(PATH_LITERAL("/foo/bar")).GetExtension(), nullptr);
+	EXPECT_EQ(Path::FromFS(PATH_LITERAL("/foo/./bar")).GetExtension(), nullptr);
+	EXPECT_EQ(Path::FromFS(PATH_LITERAL("/foo/.bar")).GetExtension(), nullptr);
+	EXPECT_EQ(Path::FromFS(PATH_LITERAL("/foo/.")).GetExtension(), nullptr);
+	EXPECT_EQ(Path::FromFS(PATH_LITERAL("/foo/..")).GetExtension(), nullptr);
+	EXPECT_EQ(Path::FromFS(PATH_LITERAL("/foo.abc/bar")).GetExtension(), nullptr);
+	EXPECT_EQ(Path::FromFS(PATH_LITERAL("/foo.abc/")).GetExtension(), nullptr);
+	EXPECT_STREQ(Path::FromFS(PATH_LITERAL("/foo.abc/bar.def")).GetExtension(), "def");
+	EXPECT_STREQ(Path::FromFS(PATH_LITERAL("/foo.abc/bar.")).GetExtension(), "");
+	EXPECT_STREQ(Path::FromFS(PATH_LITERAL("/foo.abc/bar.def.ghi")).GetExtension(), "ghi");
+	EXPECT_STREQ(Path::FromFS(PATH_LITERAL("/foo/.bar.abc")).GetExtension(), "abc");
+	EXPECT_STREQ(Path::FromFS(PATH_LITERAL("/foo/.bar.abc.def")).GetExtension(), "def");
+}
diff --git a/test/fs/meson.build b/test/fs/meson.build
index 335d788e2..ec31a9b76 100644
--- a/test/fs/meson.build
+++ b/test/fs/meson.build
@@ -4,6 +4,7 @@ test(
     'TestFs',
     'TestGlob.cxx',
     'TestLookupFile.cxx',
+    'TestPath.cxx',
     include_directories: inc,
     dependencies: [
       fs_dep,