tests: drivers: adc: adc_emul: write test for raw func set

write test for raw value func set function

Signed-off-by: Nathan Olff <[email protected]>

Author: nono313

tests/drivers/adc/adc_emul/src/main.c

@@ -364,6 +364,41 @@ ZTEST_USER(adc_emul, test_adc_emul_custom_function)
 	check_empty_samples(samples);
 }
 
+/** @brief Test setting one channel with custom function raw value. */
+ZTEST_USER(adc_emul, test_adc_emul_custom_function_raw_value)
+{
+	struct handle_seq_params channel1_param;
+	const uint16_t raw_value = 1000;
+	const uint16_t input_mV = (raw_value * ADC_REF_INTERNAL_MV / BIT(ADC_RESOLUTION));
+	const int samples = 4;
+	int ret, i;
+
+	for (i = 0; i < BUFFER_SIZE; ++i) {
+		m_sample_buffer[i] = INVALID_ADC_VALUE;
+	}
+
+	/* Generic ADC setup */
+	const struct device *adc_dev = get_adc_device();
+
+	channel_setup(adc_dev, ADC_REF_INTERNAL, ADC_GAIN_1, ADC_1ST_CHANNEL_ID);
+
+	/* ADC emulator-specific setup */
+	channel1_param.value = raw_value;
+
+	ret = adc_emul_raw_value_func_set(adc_dev, ADC_1ST_CHANNEL_ID, handle_seq, &channel1_param);
+	zassert_ok(ret, "adc_emul_value_func_set() failed with code %d", ret);
+
+	/* Test sampling */
+	start_adc_read(adc_dev, BIT(ADC_1ST_CHANNEL_ID), samples);
+
+	/* Check samples */
+	check_samples(samples, input_mV,
+		      (SEQUENCE_STEP * ADC_REF_INTERNAL_MV / BIT(ADC_RESOLUTION)), 1 /* channels */,
+		      0 /* first channel data */, ADC_REF_INTERNAL_MV, ADC_GAIN_1);
+
+	check_empty_samples(samples);
+}
+
 /**
  * @brief Test setting two channels with custom function and different
  *        params.