[LTP] [PATCH] shell: add echo command check

[mataotao]

---
 runtest/commands                      |  1 +
 testcases/commands/echo/Makefile      | 11 +++++
 testcases/commands/echo/echo_tests.sh | 62 +++++++++++++++++++++++++++
 3 files changed, 74 insertions(+)
 create mode 100644 testcases/commands/echo/Makefile
 create mode 100644 testcases/commands/echo/echo_tests.sh

diff --git a/runtest/commands b/runtest/commands
index 5ec2c3b69..570b81262 100644
--- a/runtest/commands
+++ b/runtest/commands
@@ -12,6 +12,7 @@ gzip01_sh gzip_tests.sh
 cp01_sh cp_tests.sh
 ln01_sh ln_tests.sh
 mkdir01_sh mkdir_tests.sh
+echo_tests_sh echo_tests.sh
 mv01_sh mv_tests.sh
 du01_sh du01.sh
 df01_sh df01.sh
diff --git a/testcases/commands/echo/Makefile b/testcases/commands/echo/Makefile
new file mode 100644
index 000000000..20fbab421
--- /dev/null
+++ b/testcases/commands/echo/Makefile
@@ -0,0 +1,11 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+# Copyright (c) 2024 UnionTech Ltd.
+# Author: Taotao Ma <mataotao@uniontech.com>
+
+top_srcdir		?= ../../..
+
+include $(top_srcdir)/include/mk/testcases.mk
+
+INSTALL_TARGETS		:= echo_tests.sh
+
+include $(top_srcdir)/include/mk/generic_leaf_target.mk
diff --git a/testcases/commands/echo/echo_tests.sh b/testcases/commands/echo/echo_tests.sh
new file mode 100644
index 000000000..0223cbf5b
--- /dev/null
+++ b/testcases/commands/echo/echo_tests.sh
@@ -0,0 +1,62 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0-or-later
+# Copyright (c) Linux Test Project, 2024
+# Copyright (c) 2024 UnionTech Ltd.
+# Author: Taotao Ma <mataotao@uniontech.com>
+#
+# Test basic functionality of lsmod command.
+
+TST_CNT=4
+TST_TESTFUNC=do_test
+TST_NEEDS_TMPDIR=1
+TST_NEEDS_CMDS="echo"
+. tst_test.sh
+
+echo_test()
+{
+    local echo_opt=$1
+    local echo_content=$2
+
+    local echo_cmd="echo $echo_opt $echo_content"
+
+    $echo_cmd > temp 2>&1
+    if [ $? -ne 0 ]; then
+        grep -q -E "unknown option|invalid option" temp
+        if [ $? -eq 0 ]; then
+            tst_res TCONF "$echo_cmd not supported."
+        else
+            tst_res TFAIL "$echo_cmd failed."
+        fi
+        return
+    fi
+
+    line=$(wc -l temp | awk '{print $1}')
+
+    if [ -z "$echo_opt" ];then
+        if [ "$line" -ne 1 ];then
+            tst_res TFAIL "$echo_cmd failed."
+            return
+        fi
+    else
+        if [ "$echo_opt" = "-e" ];then
+            if [ "$line" -ne 2 ];then
+                tst_res TFAIL "$echo_cmd failed."
+                return
+            fi
+        fi
+    fi
+
+    tst_res TPASS "echo passed with $echo_opt option."
+}
+
+do_test()
+{
+    case $1 in
+        1) echo_test "" "hello\nworld";;
+        2) echo_test "-e" "hello\nworld";;
+        3) echo_test "--help";;
+        4) echo_test "--version";;
+    esac
+}
+
+tst_run
\ No newline at end of file
-- 
2.20.1