1 files changed, 104 insertions, 0 deletions
diff --git a/test/command_ut.c b/test/command_ut.c
new file mode 100644
index 00000000000..2b8d28d7ae3
--- /dev/null
+++ b/test/command_ut.c
@@ -0,0 +1,104 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2012, The Chromium Authors
+ */
+
+#define DEBUG
+
+#include <command.h>
+#include <env.h>
+#include <log.h>
+#include <string.h>
+#include <linux/errno.h>
+
+static const char test_cmd[] = "setenv list 1\n setenv list ${list}2; "
+		"setenv list ${list}3\0"
+		"setenv list ${list}4";
+
+static int do_ut_cmd(struct cmd_tbl *cmdtp, int flag, int argc,
+		     char *const argv[])
+{
+	char long_str[CONFIG_SYS_CBSIZE + 42];
+
+	printf("%s: Testing commands\n", __func__);
+	run_command("env default -f -a", 0);
+
+	/* commands separated by \n */
+	run_command_list("setenv list 1\n setenv list ${list}1", -1, 0);
+	assert(!strcmp("11", env_get("list")));
+
+	/* command followed by \n and nothing else */
+	run_command_list("setenv list 1${list}\n", -1, 0);
+	assert(!strcmp("111", env_get("list")));
+
+	/* a command string with \0 in it. Stuff after \0 should be ignored */
+	run_command("setenv list", 0);
+	run_command_list(test_cmd, sizeof(test_cmd), 0);
+	assert(!strcmp("123", env_get("list")));
+
+	/*
+	 * a command list where we limit execution to only the first command
+	 * using the length parameter.
+	 */
+	run_command_list("setenv list 1\n setenv list ${list}2; "
+		"setenv list ${list}3", strlen("setenv list 1"), 0);
+	assert(!strcmp("1", env_get("list")));
+
+	assert(run_command("false", 0) == 1);
+	assert(run_command("echo", 0) == 0);
+	assert(run_command_list("false", -1, 0) == 1);
+	assert(run_command_list("echo", -1, 0) == 0);
+
+#ifdef CONFIG_HUSH_PARSER
+	run_command("setenv foo 'setenv black 1\nsetenv adder 2'", 0);
+	run_command("run foo", 0);
+	assert(env_get("black") != NULL);
+	assert(!strcmp("1", env_get("black")));
+	assert(env_get("adder") != NULL);
+	assert(!strcmp("2", env_get("adder")));
+#endif
+
+	assert(run_command("", 0) == 0);
+	assert(run_command(" ", 0) == 0);
+
+	assert(run_command("'", 0) == 1);
+
+	/* Variadic function test-cases */
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wformat-zero-length"
+	assert(run_commandf("") == 0);
+#pragma GCC diagnostic pop
+	assert(run_commandf(" ") == 0);
+	assert(run_commandf("'") == 1);
+
+	assert(run_commandf("env %s %s", "delete -f", "list") == 0);
+	/* Expected: "Error: "list" not defined" */
+	assert(run_commandf("printenv list") == 1);
+
+	memset(long_str, 'x', sizeof(long_str));
+	assert(run_commandf("Truncation case: %s", long_str) == -ENOSPC);
+
+	if (IS_ENABLED(CONFIG_HUSH_PARSER)) {
+		assert(run_commandf("env %s %s %s %s", "delete -f", "adder",
+				    "black", "foo") == 0);
+		assert(run_commandf("setenv foo 'setenv %s 1\nsetenv %s 2'",
+				    "black", "adder") == 0);
+		run_command("run foo", 0);
+		assert(env_get("black"));
+		assert(!strcmp("1", env_get("black")));
+		assert(env_get("adder"));
+		assert(!strcmp("2", env_get("adder")));
+	}
+
+	/* Clean up before exit */
+	run_command("env default -f -a", 0);
+
+	printf("%s: Everything went swimmingly\n", __func__);
+	return 0;
+}
+
+U_BOOT_CMD(
+	ut_cmd,	5,	1,	do_ut_cmd,
+	"Very basic test of command parsers",
+	""
+);