Introduce git_process class that invokes processes

1 files changed, 111 insertions, 0 deletions

diff --git a/tests/util/process/env.c b/tests/util/process/env.c
new file mode 100644
index 000000000..d580d35e3
--- /dev/null
+++ b/tests/util/process/env.c
@@ -0,0 +1,111 @@
+#include "clar_libgit2.h"
+#include "process.h"
+#include "vector.h"
+
+static git_str env_cmd = GIT_BUF_INIT;
+static git_str accumulator = GIT_BUF_INIT;
+static git_vector env_result = GIT_VECTOR_INIT;
+
+void test_process_env__initialize(void)
+{
+#ifdef GIT_WIN32
+	git_str_printf(&env_cmd, "%s/env.cmd", cl_fixture("process"));
+#else
+	git_str_puts(&env_cmd, "/usr/bin/env");
+#endif
+
+	cl_git_pass(git_vector_init(&env_result, 32, git__strcmp_cb));
+}
+
+void test_process_env__cleanup(void)
+{
+	git_vector_free(&env_result);
+	git_str_dispose(&accumulator);
+	git_str_dispose(&env_cmd);
+}
+
+static void run_env(const char **env_array, size_t env_len, bool exclude_env)
+{
+	const char *args_array[] = { env_cmd.ptr };
+
+	git_process *process;
+	git_process_options opts = GIT_PROCESS_OPTIONS_INIT;
+	git_process_result result = GIT_PROCESS_RESULT_INIT;
+
+	char buf[1024], *tok;
+	ssize_t ret;
+
+	opts.capture_out = 1;
+	opts.exclude_env = exclude_env;
+
+	cl_git_pass(git_process_new(&process, args_array, ARRAY_SIZE(args_array), env_array, env_len, &opts));
+	cl_git_pass(git_process_start(process));
+
+	while ((ret = git_process_read(process, buf, 1024)) > 0)
+		cl_git_pass(git_str_put(&accumulator, buf, (size_t)ret));
+
+	cl_assert_equal_i(0, ret);
+
+	cl_git_pass(git_process_wait(&result, process));
+
+	cl_assert_equal_i(GIT_PROCESS_STATUS_NORMAL, result.status);
+	cl_assert_equal_i(0, result.exitcode);
+	cl_assert_equal_i(0, result.signal);
+
+	for (tok = strtok(accumulator.ptr, "\n"); tok; tok = strtok(NULL, "\n")) {
+#ifdef GIT_WIN32
+		if (strlen(tok) && tok[strlen(tok) - 1] == '\r')
+			tok[strlen(tok) - 1] = '\0';
+#endif
+
+		cl_git_pass(git_vector_insert(&env_result, tok));
+	}
+
+	git_process_close(process);
+	git_process_free(process);
+}
+
+void test_process_env__can_add_env(void)
+{
+	const char *env_array[] = { "TEST_NEW_ENV=added", "TEST_OTHER_ENV=also_added" };
+	run_env(env_array, 2, false);
+
+	cl_git_pass(git_vector_search(NULL, &env_result, "TEST_NEW_ENV=added"));
+	cl_git_pass(git_vector_search(NULL, &env_result, "TEST_OTHER_ENV=also_added"));
+}
+
+void test_process_env__can_propagate_env(void)
+{
+	cl_setenv("TEST_NEW_ENV", "propagated");
+	run_env(NULL, 0, false);
+
+	cl_git_pass(git_vector_search(NULL, &env_result, "TEST_NEW_ENV=propagated"));
+}
+
+void test_process_env__can_remove_env(void)
+{
+	const char *env_array[] = { "TEST_NEW_ENV=" };
+	char *str;
+	size_t i;
+
+	cl_setenv("TEST_NEW_ENV", "propagated");
+	run_env(env_array, 1, false);
+
+	git_vector_foreach(&env_result, i, str)
+		cl_assert(git__prefixcmp(str, "TEST_NEW_ENV=") != 0);
+}
+
+void test_process_env__can_clear_env(void)
+{
+	const char *env_array[] = { "TEST_NEW_ENV=added", "TEST_OTHER_ENV=also_added" };
+
+	cl_setenv("SOME_EXISTING_ENV", "propagated");
+	run_env(env_array, 2, true);
+
+	/*
+	 * We can't simply test that the environment is precisely what we
+	 * provided.  Some systems (eg win32) will add environment variables
+	 * to all processes.
+	 */
+	cl_assert_equal_i(GIT_ENOTFOUND, git_vector_search(NULL, &env_result, "SOME_EXISTING_ENV=propagated"));
+}