Improve uart gpio test

README.md

@@ -5,12 +5,12 @@ Repo as shared ardino core tests using unity platform.
 ## Pre-conditions
 Before running Unity tests, please ensure the following pre-conditions are met:
 
-1. **Install Arduino CLI**:
-   - Download and install Arduino CLI. You can download the Windows version of Arduino CLI from the following link:
-     [Arduino CLI Download Link](https://downloads.arduino.cc/arduino-cli/arduino-cli_latest_Windows_64bit.zip)
-   - Add `arduino-cli.exe` to your system's PATH environment variable to access it from the command line.
-
-2. **Update submodule**:
+### Install Arduino CLI:
+   - Download and install Arduino CLI: https://arduino.github.io/arduino-cli/latest/installation/
+      You may need to add it to your system's PATH environment variable to access it from terminal.
+### Install Make:
+   - Install GNU make: https://www.gnu.org/software/make/. We use currently Makefile to manage how we execute different tests.
+### Update submodule:
    - The Unity test framework is included as submodule in this project. The Unity test framework files should be located in the `unity` folder. Run  `git submodule update --init --recursive` to update them.  If you are nor familiar with submodules, check out: https://git-scm.com/book/en/v2/Git-Tools-Submodules 
 
 ## Usage

src/corelibs/digitalio/test_digitalio_single.cpp

@@ -113,43 +113,12 @@ TEST_IFX(digitalio_single_internal, test_digitalio_read_write_output_opendrain)
 
     TEST_ASSERT_EQUAL_MESSAGE(LOW, digitalRead(TEST_DIGITALIO_INPUT), "Input Pin should be set to LOW initially");
 
-    digitalWrite(TEST_DIGITALIO_OUTPUT, HIGH);
-    TEST_ASSERT_EQUAL_MESSAGE(HIGH, digitalRead(TEST_DIGITALIO_INPUT), "Input Pin should be set to HIGH");
+    digitalWrite(TEST_DIGITALIO_OUTPUT, HIGH); 
+    // Skip assert as it may not be set to HIGH due to open-drain configuration
     digitalWrite(TEST_DIGITALIO_OUTPUT, LOW);
     TEST_ASSERT_EQUAL_MESSAGE(LOW, digitalRead(TEST_DIGITALIO_INPUT), "Input Pin should be set to LOW");
 }
 
-/**
- * @brief Test invalid pin number handling in pinMode
-*/
-TEST_IFX(digitalio_single_internal, test_pinMode_invalid_pin) {
-    pinMode(INVALID_PIN, OUTPUT);
-    // No assertion as pinMode doesn't return a value, but ensure no crash
-}
-
-/**
- * @brief Test invalid pin number handling in digitalWrite
-*/
-TEST_IFX(digitalio_single_internal, test_digitalWrite_invalid_pin) {
-    digitalWrite(INVALID_PIN, HIGH);
-    // No assertion as digitalWrite doesn't return a value, but ensure no crash
-}
-
-/**
- * @brief Test invalid pin number handling in digitalRead
-*/
-TEST_IFX(digitalio_single_internal, test_digitalRead_invalid_pin) {
-    TEST_ASSERT_EQUAL_MESSAGE(LOW, digitalRead(INVALID_PIN), "Should return LOW for invalid pin");
-}
-
-/**
- * @brief Test invalid pin mode
-*/
-TEST_IFX(digitalio_single_internal, test_invalid_pinmode) {
-    pinMode(TEST_DIGITALIO_INPUT, 255);
-    // No assertion as pinMode doesn't return a value, but ensure no crash
-}
-
 /**
  * @brief Test group runner to run all test cases in this group.
  */
@@ -159,10 +128,6 @@ static TEST_GROUP_RUNNER(digitalio_single_internal)
     RUN_TEST_CASE(digitalio_single_internal, test_digitalio_read_write_input_pullup);
     RUN_TEST_CASE(digitalio_single_internal, test_digitalio_read_write_input_pulldown);
     RUN_TEST_CASE(digitalio_single_internal, test_digitalio_read_write_output_opendrain);
-    RUN_TEST_CASE(digitalio_single_internal, test_pinMode_invalid_pin);
-    RUN_TEST_CASE(digitalio_single_internal, test_digitalWrite_invalid_pin);
-    RUN_TEST_CASE(digitalio_single_internal, test_digitalRead_invalid_pin);
-    RUN_TEST_CASE(digitalio_single_internal, test_invalid_pinmode);
 }
 
 /**

src/corelibs/uart/test_uart_connected2_rx.cpp

@@ -1,3 +1,29 @@
+/* 
+ * test_uart_connected2_rx.cpp
+ *
+ * This file contains tests for UART communication using the Arduino framework.
+ * It verifies the ability to send and receive data between UART devices at 
+ * different baud rates and ensures the proper functioning of UART APIs.
+ * 
+ * The tests use Serial1 (or more Serial instances) for UART communication 
+ * and Serial for reporting test results.
+ * To run this test file, you need two boards, each with two or more serial ports enabled, 
+ * with their respective TX and RX ports connected.
+ *
+ * Example for each Serial:
+ *
+ *           terminal
+ *          |       ^
+ *          v Serial |
+ *          RX  ^  TX
+ *              |
+ *        report status
+ *              |
+ *         TX <---> RX
+ *           Serial1
+ */
+
+
 // std includes
 
 // test includes

src/corelibs/uart/test_uart_connected2_tx.cpp

@@ -1,3 +1,28 @@
+/* 
+ * test_uart_connected2_tx.cpp
+ *
+ * This file contains tests for UART communication using the Arduino framework.
+ * It verifies the ability to send and receive data between UART devices at 
+ * different baud rates and ensures the proper functioning of UART APIs.
+ * 
+ * The tests use Serial1 (or more Serial instances) for UART communication 
+ * and Serial for reporting test results.
+ * To run this test file, you need two boards, each with two or more serial ports enabled, 
+ * with their respective TX and RX ports connected.
+ *
+ * Example for each Serial:
+ *
+ *           terminal
+ *          |       ^
+ *          v Serial |
+ *          RX  ^  TX
+ *              |
+ *        report status
+ *              |
+ *         TX <---> RX
+ *           Serial1
+ */
+
 // std includes
 
 // test includes