tests: line: new test case

Verify that a consumer string over 31 characters long is correctly
cropped.

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

diff --git a/tests/tests-line.c b/tests/tests-line.c
index 3b36a20663beea1b92f3c724a6b955bd35dff90f..617e02b692a02078186286fad9606f1fdb48867d 100644 (file)
--- a/tests/tests-line.c
+++ b/tests/tests-line.c
@@ -89,6 +89,34 @@ TEST_DEFINE(line_consumer,
            "gpiod_line_consumer() - good",
            0, { 8 });
 
+static void line_consumer_long_string(void)
+{
+       TEST_CLEANUP(test_close_chip) struct gpiod_chip *chip = NULL;
+       struct gpiod_line *line;
+       int status;
+
+       chip = gpiod_chip_open(test_chip_path(0));
+       TEST_ASSERT_NOT_NULL(chip);
+
+       line = gpiod_chip_get_line(chip, 0);
+       TEST_ASSERT_NOT_NULL(line);
+
+       TEST_ASSERT_NULL(gpiod_line_consumer(line));
+
+       status = gpiod_line_request_input(line,
+                                         "consumer string over 32 characters long",
+                                         false);
+       TEST_ASSERT_RET_OK(status);
+
+       TEST_ASSERT(!gpiod_line_needs_update(line));
+       TEST_ASSERT_STR_EQ(gpiod_line_consumer(line),
+                          "consumer string over 32 charact");
+       TEST_ASSERT_EQ(strlen(gpiod_line_consumer(line)), 31);
+}
+TEST_DEFINE(line_consumer_long_string,
+           "gpiod_line_consumer() - long consumer string",
+           0, { 8 });
+
 static void line_request_bulk_output(void)
 {
        TEST_CLEANUP(test_close_chip) struct gpiod_chip *chipA = NULL;