add spawn

2 files changed, 66 insertions, 0 deletions

diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 13974aa..abeab88 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -10,6 +10,7 @@ add_executable(nihil.test
 	guard.cc
 	next_word.cc
 	skipws.cc
+	spawn.cc
 	tabulate.cc)
 
 target_link_libraries(nihil.test PRIVATE
diff --git a/tests/spawn.cc b/tests/spawn.cc
new file mode 100644
index 0000000..455223e
--- /dev/null
+++ b/tests/spawn.cc
@@ -0,0 +1,65 @@
+/*
+ * This source code is released into the public domain.
+ */
+
+#include <catch2/catch_test_macros.hpp>
+
+import nihil;
+
+TEST_CASE("spawn: system", "[spawn]") {
+	using namespace nihil;
+	auto output = std::string();
+	auto result = spawn(shell("x=1; echo $x"),
+			    capture(stdout_fileno, output)).wait();
+
+	REQUIRE(result.okay());
+	REQUIRE(output == "1\n");
+}
+
+TEST_CASE("spawn: execv", "[spawn]") {
+	using namespace nihil;
+	auto output = std::string();
+	auto args = argv::from_args({"sh", "-c", "x=1; echo $x"});
+	auto result = spawn(execv("/bin/sh", std::move(args)),
+			    capture(stdout_fileno, output)).wait();
+
+	REQUIRE(result.okay());
+	REQUIRE(output == "1\n");
+}
+
+TEST_CASE("spawn: execvp", "[spawn]") {
+	using namespace nihil;
+	auto output = std::string();
+	auto args = argv::from_args({"sh", "-c", "x=1; echo $x"});
+	auto result = spawn(execvp("sh", std::move(args)),
+			    capture(stdout_fileno, output)).wait();
+
+	REQUIRE(result.okay());
+	REQUIRE(output == "1\n");
+}
+
+TEST_CASE("spawn: execl", "[spawn]") {
+	using namespace nihil;
+	auto output = std::string();
+	auto result = spawn(execl("/bin/sh", "sh", "-c", "x=1; echo $x"),
+			    capture(stdout_fileno, output)).wait();
+
+	REQUIRE(result.okay());
+	REQUIRE(output == "1\n");
+}
+
+TEST_CASE("spawn: execlp", "[spawn]") {
+	using namespace nihil;
+	auto output = std::string();
+	auto result = spawn(execlp("sh", "sh", "-c", "x=1; echo $x"),
+			    capture(stdout_fileno, output)).wait();
+
+	REQUIRE(result.okay());
+	REQUIRE(output == "1\n");
+}
+
+TEST_CASE("spawn: execlp failure", "[spawn]") {
+	using namespace nihil;
+	REQUIRE_THROWS_AS(execlp("lfjail_nonesuch_executable", "x"),
+			  executable_not_found);
+}