Test: Add ArgParser tests

test/testutilargparser.cpp

@@ -0,0 +1,99 @@
+#include "macro.h"
+#include "testcase.h"
+#include "testsuite.h"
+#include "util/argparser.h"
+
+bool runParser(std::vector<const char*> arguments, std::function<void(Util::ArgParser&)> initializer = {})
+{
+	stdout = Test::TestSuite::the().outputNull();
+
+	Util::ArgParser parser;
+	if (initializer) {
+		initializer(parser);
+	}
+
+	arguments.insert(arguments.begin(), "app");
+	auto result = parser.parse(arguments.size(), arguments.data());
+
+	stdout = Test::TestSuite::the().outputStd();
+	return result;
+}
+
+TEST_CASE(NoArguments)
+{
+	auto result = runParser({});
+	EXPECT_EQ(result, true);
+}
+
+TEST_CASE(BoolOptions)
+{
+	// Short option
+	bool boolOpt1 = false;
+	auto result = runParser({ "-b" }, [&](auto& parser) {
+		parser.addOption(boolOpt1, 'b', nullptr, nullptr, nullptr);
+	});
+	EXPECT_EQ(result, true);
+	EXPECT_EQ(boolOpt1, true);
+
+	// Short option, not given
+	boolOpt1 = false;
+	result = runParser({}, [&](auto& parser) {
+		parser.addOption(boolOpt1, 'b', nullptr, nullptr, nullptr);
+	});
+	EXPECT_EQ(result, true);
+	EXPECT_EQ(boolOpt1, false);
+
+	// Long option
+	boolOpt1 = false;
+	result = runParser({ "--bool" }, [&](auto& parser) {
+		parser.addOption(boolOpt1, '\0', "bool", nullptr, nullptr);
+	});
+	EXPECT_EQ(result, true);
+	EXPECT_EQ(boolOpt1, true);
+
+	// Long option, not given
+	boolOpt1 = false;
+	result = runParser({}, [&](auto& parser) {
+		parser.addOption(boolOpt1, '\0', "bool", nullptr, nullptr);
+	});
+	EXPECT_EQ(result, true);
+	EXPECT_EQ(boolOpt1, false);
+
+	// Allow both short and long option, provide short
+	boolOpt1 = false;
+	result = runParser({ "-b" }, [&](auto& parser) {
+		parser.addOption(boolOpt1, 'b', "bool", nullptr, nullptr);
+	});
+	EXPECT_EQ(result, true);
+	EXPECT_EQ(boolOpt1, true);
+
+	// Allow both short and long option, provide long
+	boolOpt1 = false;
+	result = runParser({ "--bool" }, [&](auto& parser) {
+		parser.addOption(boolOpt1, 'b', "bool", nullptr, nullptr);
+	});
+	EXPECT_EQ(result, true);
+	EXPECT_EQ(boolOpt1, true);
+
+	// Allow both short and long option, provide both
+	boolOpt1 = false;
+	result = runParser({ "-b", "--bool" }, [&](auto& parser) {
+		parser.addOption(boolOpt1, 'b', "bool", nullptr, nullptr);
+	});
+	EXPECT_EQ(result, true);
+	EXPECT_EQ(boolOpt1, true);
+}
+
+TEST_CASE(MultipleOptions)
+{
+	// Both short options, second is required, with a non-option argument in-between
+	bool boolOpt1 = false;
+	std::string stringOpt1 = "";
+	auto result = runParser({ "-b", "something", "-s", "a-string-value" }, [&](auto& parser) {
+		parser.addOption(boolOpt1, 'b', nullptr, nullptr, nullptr);
+		parser.addOption(stringOpt1, 's', nullptr, nullptr, nullptr, nullptr, Util::ArgParser::Required::Yes);
+	});
+	EXPECT_EQ(result, true);
+	EXPECT_EQ(boolOpt1, true);
+	EXPECT_EQ(stringOpt1, "a-string-value");
+}