test: unit test for echo command

Provide a unit test for the unit command

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>

diff --git a/test/cmd/Makefile b/test/cmd/Makefile
index 758bc14273b8e2d123f0a0d53e398e107f13b950..5451e9ea901681d3f9a157eb742278255e12cf21 100644 (file)
--- a/test/cmd/Makefile
+++ b/test/cmd/Makefile
@@ -2,6 +2,9 @@
 #
 # Copyright (c) 2013 Google, Inc
 
+ifdef CONFIG_HUSH_PARSER
+obj-$(CONFIG_CONSOLE_RECORD) += test_echo.o
+endif
 obj-y += mem.o
 obj-$(CONFIG_CMD_MEM_SEARCH) += mem_search.o
 obj-$(CONFIG_CMD_PWM) += pwm.o

diff --git a/test/cmd/test_echo.c b/test/cmd/test_echo.c
new file mode 100644 (file)
index 0000000..4183cf7
--- /dev/null
+++ b/test/cmd/test_echo.c
@@ -0,0 +1,57 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Tests for echo command
+ *
+ * Copyright 2020, Heinrich Schuchadt <xypron.glpk@gmx.de>
+ */
+
+#include <common.h>
+#include <command.h>
+#include <display_options.h>
+#include <test/lib.h>
+#include <test/test.h>
+#include <test/ut.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+struct test_data {
+       char *cmd;
+       char *expected;
+};
+
+static struct test_data echo_data[] = {
+       {"echo 1 2 3",
+        "1 2 3"},
+       /* Test new line handling */
+       {"echo -n 1 2 3; echo a b c",
+        "1 2 3a b c"},
+       /*
+        * Test handling of environment variables.
+        *
+        * j, q, x are among the least frequent letters in English.
+        * Hence no collision for the variable name jQx is expected.
+        */
+       {"setenv jQx X; echo \"a)\" ${jQx} 'b)' '${jQx}' c) ${jQx}; setenv jQx",
+        "a) X b) ${jQx} c) X"},
+       /* Test handling of shell variables. */
+       {"setenv jQx; for jQx in 1 2 3; do echo -n \"${jQx}, \"; done; echo;",
+        "1, 2, 3, "},
+};
+
+static int lib_test_hush_echo(struct unit_test_state *uts)
+{
+       int i;
+
+       for (i = 0; i < ARRAY_SIZE(echo_data); ++i) {
+               console_record_reset_enable();
+               ut_assertok(run_command(echo_data[i].cmd, 0));
+               gd->flags &= ~GD_FLG_RECORD;
+               console_record_readline(uts->actual_str,
+                                       sizeof(uts->actual_str));
+               ut_asserteq_str(echo_data[i].expected, uts->actual_str);
+               ut_assertok(ut_check_console_end(uts));
+       }
+       return 0;
+}
+
+LIB_TEST(lib_test_hush_echo, 0);