Test: Add Shell and System test cases

test/testutilargparser.cpp

@@ -1,3 +1,4 @@
+#include <functional> // function
 #include <string>
 #include <vector>
 

test/testutilshell.cpp

@@ -0,0 +1,39 @@
+#include <string>
+
+#include "macro.h"
+#include "testcase.h"
+#include "testsuite.h"
+#include "util/shell.h"
+
+bool runShell(const char* command, std::string* output = nullptr)
+{
+	stdout = Test::TestSuite::the().outputNull();
+
+	Util::Shell $;
+	auto exec = $(command);
+	if (output) {
+		*output = exec.output();
+	}
+
+	stdout = Test::TestSuite::the().outputStd();
+	return !exec.status() ? true : false;
+}
+
+// -----------------------------------------
+
+TEST_CASE(ShellCommand)
+{
+	// Pipe test, grep section of the echo command, return true
+	std::string output = "";
+	auto result = runShell("echo 'Hello World!' | grep --only-matching 'Hello'", &output);
+	EXPECT_EQ(result, true);
+	EXPECT_EQ(output, "Hello\n");
+
+	// Return false
+	result = runShell("exit 1");
+	EXPECT_EQ(result, false);
+
+	// Return false
+	result = runShell("failure() { return 1; }; failure");
+	EXPECT_EQ(result, false);
+}

test/testutilsystem.cpp

@@ -0,0 +1,98 @@
+#include <functional> // function
+#include <string>
+#include <vector>
+
+#include "macro.h"
+#include "testcase.h"
+#include "testsuite.h"
+#include "util/system.h"
+
+bool runSystem(std::function<Util::System(Util::System&)> commands, std::string* output = nullptr, std::string* error = nullptr)
+{
+	Util::System system;
+	auto exec = commands(system);
+	if (output) {
+		*output = exec.output();
+	}
+	if (error) {
+		*error = exec.error();
+	}
+
+	return !exec.status() ? true : false;
+}
+
+// -----------------------------------------
+
+TEST_CASE(SystemCommand)
+{
+	// Regular echo command, return true
+	std::string output = "";
+	std::string error = "";
+	auto result = runSystem([&](auto& $) {
+		return $("echo Hello World!")();
+	}, &output, &error);
+	EXPECT_EQ(result, true);
+	EXPECT_EQ(output, "Hello World!\n");
+	EXPECT_EQ(error, "");
+
+	// Apend output of two echo commands, return true
+	output = "";
+	error = "";
+	result = runSystem([&](auto& $) {
+		return $("echo -n Hello ") + $("echo -n World!");
+	}, &output, &error);
+	EXPECT_EQ(result, true);
+	EXPECT_EQ(output, "Hello World!");
+	EXPECT_EQ(error, "");
+
+	// Pipe test, grep section of the echo command, return true
+	output = "";
+	error = "";
+	result = runSystem([&](auto& $) {
+		return $("echo Hello World!") | $("grep --only-matching Hello");
+	}, &output, &error);
+	EXPECT_EQ(result, true);
+	EXPECT_EQ(output, "Hello\n");
+	EXPECT_EQ(error, "");
+
+	// Run all commands until first false, return true
+	output = "";
+	error = "";
+	result = runSystem([&](auto& $) {
+		return $("echo Hello") && $("echo World!");
+	}, &output, &error);
+	EXPECT_EQ(result, true);
+	EXPECT_EQ(output, "Hello\nWorld!\n");
+	EXPECT_EQ(error, "");
+
+	// Run all commands until first true, return true
+	output = "";
+	error = "";
+	result = runSystem([&](auto& $) {
+		return $("echo Hello") || $("echo World!");
+	}, &output, &error);
+	EXPECT_EQ(result, true);
+	EXPECT_EQ(output, "Hello\n");
+	EXPECT_EQ(error, "");
+
+	// And plus pipe test, grep the middle word, return true
+	output = "";
+	error = "";
+	result = runSystem([&](auto& $) {
+		return ($("echo -n one ") && $("echo -n two ") && $("echo -n three")) | $("grep --only-matching two");
+	}, &output, &error);
+	EXPECT_EQ(result, true);
+	EXPECT_EQ(output, "two\n");
+	EXPECT_EQ(error, "");
+
+	// FIXME waitpid does not seem to get the right exit status here
+	// Return false
+	output = "";
+	error = "";
+	result = runSystem([&](auto& $) {
+		return $("exit 1")();
+	}, &output, &error);
+	EXPECT_EQ(result, false);
+	EXPECT_EQ(output, "");
+	EXPECT_EQ(error, "");
+}