test/util/TestTemplateString: new unit test

test/util/TestTemplateString.cxx

+/*
+ * Copyright 2015-2020 Max Kellermann <max.kellermann@gmail.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - 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
+ * FOUNDATION 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.
+ */
+
+#include "util/TemplateString.hxx"
+
+#include <gtest/gtest.h>
+
+TEST(TemplateString, FromChar)
+{
+	using namespace TemplateString;
+	static constexpr auto result = FromChar('?');
+	static_assert(result.size == 1);
+	ASSERT_STREQ(result, "?");
+}
+
+TEST(TemplateString, FromLiteral)
+{
+	using namespace TemplateString;
+	static constexpr auto result = FromLiteral("foobar");
+	static_assert(result.size == 6);
+	ASSERT_STREQ(result, "foobar");
+}
+
+TEST(TemplateString, Concat)
+{
+	using namespace TemplateString;
+	static constexpr auto foo = Concat('f', 'o', 'o');
+	static_assert(foo.size == 3);
+	ASSERT_STREQ(foo, "foo");
+
+	static constexpr auto bar = Concat('b', 'a', 'r');
+	static constexpr auto foobar = Concat(foo, bar);
+	static_assert(foobar.size == 6);
+	ASSERT_STREQ(foobar, "foobar");
+}

test/util/meson.build

@@ -6,6 +6,7 @@ test(
     'TestDivideString.cxx',
     'TestMimeType.cxx',
     'TestSplitString.cxx',
+    'TestTemplateString.cxx',
     'TestUriExtract.cxx',
     'TestUriQueryParser.cxx',
     'TestUriRelative.cxx',