src/corelibs: Extended test case.

Signed-off-by: IFX-Anusha <[email protected]>

Author: IFX-Anusha

src/corelibs/analogio/test_analogio_pwm.cpp

@@ -244,11 +244,12 @@ TEST_IFX(analogio_pwm, test_analog_write_pwm_0_percentage_dutycycle)
  * @brief Verify SetAnalog frequency
  */
 TEST_IFX(analogio_pwm, test_analog_set_fz)
-{
-    analogWriteResolution(16); // Set resolution to 16 bits
+{   
+    analogWriteResolution(16); 
     analogWrite(PWM_PIN_OUTPUT, 32767); // Set duty of 50 percent
 
     const float frequency[] = {1, 50, 5000, 50000};
+
     for(size_t i=0; i< sizeof(frequency)/sizeof(frequency[i]); i++)
     {
         // Set different frequencies and verify the output
@@ -257,6 +258,16 @@ TEST_IFX(analogio_pwm, test_analog_set_fz)
         feedback_measurement_handler();
         TEST_ASSERT_FLOAT_WITHIN(TOLERANCE_FREQUENCY, frequency[i], measured_frequency_hz);
     }
+
+    //test that frequency set is used by analogwrite function
+    setAnalogWriteFrequency(PWM_PIN_OUTPUT, 100); 
+    delay(1000); 
+    analogWrite(PWM_PIN_OUTPUT, 32767); 
+    delay(1000); 
+    feedback_measurement_handler();
+    TEST_ASSERT_FLOAT_WITHIN(TOLERANCE_FREQUENCY, 100, measured_frequency_hz);
+
+    setAnalogWriteFrequency(PWM_PIN_OUTPUT, 1000); //set back to default fz
 }
 
 /**