tests: check reading specific lines with gpioget

Add a test case where we only read a couple GPIO line values at
specified offsets.

Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com>

diff --git a/tests/tests-gpioget.c b/tests/tests-gpioget.c
index 302e341499e3c41fe489d1e96ca4253c1d94561c..c64ff30de31213fa74d91484eeeb66a74e18ca81 100644 (file)
--- a/tests/tests-gpioget.c
+++ b/tests/tests-gpioget.c
@@ -51,6 +51,46 @@ TEST_DEFINE(gpioget_read_all_lines,
            "tools: gpioget - read all lines",
            0, { 8, 8, 8 });
 
+static void gpioget_read_some_lines(void)
+{
+       unsigned int offsets[3];
+       int rv, values[3];
+
+       test_tool_run("gpioget", "gpiochip1",
+                     "0", "1", "4", "6", (char *)NULL);
+       test_tool_wait();
+
+       TEST_ASSERT(test_tool_exited());
+       TEST_ASSERT_RET_OK(test_tool_exit_status());
+       TEST_ASSERT_NOT_NULL(test_tool_stdout());
+       TEST_ASSERT_NULL(test_tool_stderr());
+       TEST_ASSERT_STR_EQ(test_tool_stdout(), "0 0 0 0\n");
+
+       offsets[0] = 1;
+       offsets[1] = 4;
+       offsets[2] = 6;
+
+       values[0] = values[1] = values[3] = 1;
+
+       rv = gpiod_simple_set_value_multiple(TEST_CONSUMER, test_chip_name(1),
+                                            offsets, values, 3, false,
+                                            NULL, NULL);
+       TEST_ASSERT_RET_OK(rv);
+
+       test_tool_run("gpioget", "gpiochip1",
+                             "0", "1", "4", "6", (char *)NULL);
+       test_tool_wait();
+
+       TEST_ASSERT(test_tool_exited());
+       TEST_ASSERT_RET_OK(test_tool_exit_status());
+       TEST_ASSERT_NOT_NULL(test_tool_stdout());
+       TEST_ASSERT_NULL(test_tool_stderr());
+       TEST_ASSERT_STR_EQ(test_tool_stdout(), "0 1 1 1\n");
+}
+TEST_DEFINE(gpioget_read_some_lines,
+           "tools: gpioget - read some lines",
+           0, { 8, 8, 8 });
+
 static void gpioget_no_arguments(void)
 {
        test_tool_run("gpioget", (char *)NULL);