test/test_util: add unit test for DivideString

Makefile.am

@@ -2001,6 +2001,7 @@ test_run_inotify_LDADD = \
 endif
 
 test_test_util_SOURCES = \
+	test/DivideStringTest.hxx \
 	test/UriUtilTest.hxx \
 	test/TestCircularBuffer.hxx \
 	test/test_util.cxx

test/DivideStringTest.hxx

+/*
+ * Unit tests for src/util/
+ */
+
+#include "check.h"
+#include "util/DivideString.hxx"
+
+#include <cppunit/TestFixture.h>
+#include <cppunit/extensions/HelperMacros.h>
+
+#include <string.h>
+
+class DivideStringTest : public CppUnit::TestFixture {
+	CPPUNIT_TEST_SUITE(DivideStringTest);
+	CPPUNIT_TEST(TestBasic);
+	CPPUNIT_TEST(TestEmpty);
+	CPPUNIT_TEST(TestFail);
+	CPPUNIT_TEST_SUITE_END();
+
+public:
+	void TestBasic() {
+		constexpr char input[] = "foo.bar";
+		const DivideString ds(input, '.');
+		CPPUNIT_ASSERT(ds.IsDefined());
+		CPPUNIT_ASSERT(!ds.IsEmpty());
+		CPPUNIT_ASSERT_EQUAL(0, strcmp(ds.GetFirst(), "foo"));
+		CPPUNIT_ASSERT_EQUAL(input + 4, ds.GetSecond());
+	}
+
+	void TestEmpty() {
+		constexpr char input[] = ".bar";
+		const DivideString ds(input, '.');
+		CPPUNIT_ASSERT(ds.IsDefined());
+		CPPUNIT_ASSERT(ds.IsEmpty());
+		CPPUNIT_ASSERT_EQUAL(0, strcmp(ds.GetFirst(), ""));
+		CPPUNIT_ASSERT_EQUAL(input + 1, ds.GetSecond());
+	}
+
+	void TestFail() {
+		constexpr char input[] = "foo!bar";
+		const DivideString ds(input, '.');
+		CPPUNIT_ASSERT(!ds.IsDefined());
+	}
+};

test/test_util.cxx

@@ -3,6 +3,7 @@
  */
 
 #include "config.h"
+#include "DivideStringTest.hxx"
 #include "UriUtilTest.hxx"
 #include "TestCircularBuffer.hxx"
 
@@ -13,6 +14,7 @@
 
 #include <stdlib.h>
 
+CPPUNIT_TEST_SUITE_REGISTRATION(DivideStringTest);
 CPPUNIT_TEST_SUITE_REGISTRATION(UriUtilTest);
 CPPUNIT_TEST_SUITE_REGISTRATION(TestCircularBuffer);