samples: sensor_shell: Wait for prompt before sending command

Cherry picking 7c0e4ae from main branch
to ensure test correctly runs in CI.

Wait for prompt before sending command to ensure shell is ready.

Signed-off-by: Tim Pambor <[email protected]>

Author: tpambor

samples/sensor/sensor_shell/pytest/test_sensor_shell.py

@@ -11,6 +11,7 @@
 def test_sensor_shell_info(shell: Shell):
     logger.info('send "sensor info" command')
 
+    shell.wait_for_prompt()
     lines = shell.exec_command('sensor info')
     assert any(['device name: sensor@0' in line for line in lines]), 'expected response not found'
     assert any(['device name: sensor@1' in line for line in lines]), 'expected response not found'
@@ -25,6 +26,7 @@ def test_sensor_shell_get(shell: Shell):
     # for-loop in `parse_named_int()` will go through everything
     for channel in range(59):
         logger.info(f'channel {channel}')
+        shell.wait_for_prompt()
         lines = shell.exec_command(f'sensor get sensor@0 {channel}')
         assert any([f'channel type={channel}' in line for line in lines]), 'expected response not found'
 
@@ -34,9 +36,11 @@ def test_sensor_shell_get(shell: Shell):
 def test_sensor_shell_attr_get(shell: Shell):
     logger.info('send "sensor attr_get" command')
 
+    shell.wait_for_prompt()
     lines = shell.exec_command('sensor attr_get sensor@0 co2 sampling_frequency')
     assert any(['sensor@0(channel=co2, attr=sampling_frequency)' in line for line in lines]), 'expected response not found'
 
+    shell.wait_for_prompt()
     lines = shell.exec_command('sensor attr_get sensor@1 54 3')
     assert any(['sensor@1(channel=gauge_state_of_health, attr=slope_th)' in line for line in lines]), 'expected response not found'
 
@@ -46,10 +50,12 @@ def test_sensor_shell_attr_get(shell: Shell):
 def test_sensor_shell_attr_set(shell: Shell):
     logger.info('send "sensor attr_set" command')
 
+    shell.wait_for_prompt()
     lines = shell.exec_command('sensor attr_set sensor@0 co2 sampling_frequency 1')
     expected_line = 'sensor@0 channel=co2, attr=sampling_frequency set to value=1'
     assert any([expected_line in line for line in lines]), 'expected response not found'
 
+    shell.wait_for_prompt()
     lines = shell.exec_command('sensor attr_set sensor@1 54 3 1')
     expected_line = 'sensor@1 channel=gauge_state_of_health, attr=slope_th set to value=1'
     assert any([expected_line in line for line in lines]), 'expected response not found'
@@ -60,10 +66,12 @@ def test_sensor_shell_attr_set(shell: Shell):
 def test_sensor_shell_trig(shell: Shell):
     logger.info('send "sensor trig" command')
 
+    shell.wait_for_prompt()
     lines = shell.exec_command('sensor trig sensor@0 on data_ready')
     expected_line = 'Enabled trigger idx=1 data_ready on device sensor@0'
     assert any([expected_line in line for line in lines]), 'expected response not found'
 
+    shell.wait_for_prompt()
     lines = shell.exec_command('sensor trig sensor@0 off data_ready')
     expected_line = 'Disabled trigger idx=1 data_ready on device sensor@0'
     assert any([expected_line in line for line in lines]), 'expected response not found'