First implementation load_switch_test

Author: Hufamily

FprimeZephyrReference/test/int/load_switch_test.py

@@ -0,0 +1,82 @@
+"""
+load_switch_test.py:
+
+Integration tests for the Load-Switch component.
+"""
+
+import time
+
+import pytest
+from common import proves_send_and_assert_command
+from fprime_gds.common.data_types.ch_data import ChData
+from fprime_gds.common.testing_fw.api import IntegrationTestAPI
+
+loadswitch = "ReferenceDeployment.loadswitch"
+
+@pytest.fixture(autouse=True)
+def ensure_loadswitch_off(fprime_test_api: IntegrationTestAPI, start_gds):
+    """Ensure LoadSwitch starts in OFF state"""
+    turn_off(fprime_test_api)
+    yield
+    turn_off(fprime_test_api)
+
+def turn_on(fprime_test_api: IntegrationTestAPI):
+    """Helper function to turn on the loadswitch"""
+    proves_send_and_assert_command(
+        fprime_test_api,
+        f"{loadswitch}.TURN_ON",
+    )
+
+def turn_off(fprime_test_api: IntegrationTestAPI):
+    """Helper function to turn off the loadswitch"""
+    proves_send_and_assert_command(
+        fprime_test_api,
+        f"{loadswitch}.TURN_OFF"
+    )
+
+def get_is_on(fprime_test_api: IntegrationTestAPI) -> int:
+    """Helper function to request packet and get fresh IsOn telemetry"""
+    proves_send_and_assert_command(
+        fprime_test_api,
+        "CdhCore.tlmSend.SEND_PKT",
+        ["9"],
+    )
+    result: ChData = fprime_test_api.assert_telemetry(
+        f"{loadswitch}.IsOn", start="NOW", timeout=3
+    )
+    return result.get_val()
+
+def test_01_loadswitch_telemetry_basic(fprime_test_api: IntegrationTestAPI, start_gds):
+    """Test that we can read IsOn telemetry"""
+    value = get_is_on(fprime_test_api)
+    assert value in (0, 1), f"IsOn should be 0 or 1, got {value}"
+
+def test_02_turn_on_sets_high(fprime_test_api: IntegrationTestAPI, start_gds):
+    """
+    Test TURN_ON command sets GPIO high, emits ON event, and updates telemetry
+    """
+
+    # Send turn_on command
+    turn_on(fprime_test_api)
+
+    # Confirm Load-Switch turned ON
+    fprime_test_api.assert_event(f"{loadswitch}.StatusChanged", args=[1], timeout=2)
+
+    # Confirm telemetry IsOn is 1
+    value = get_is_on(fprime_test_api)
+    assert value == 1, f"Expected IsOn = 1 after TURN_ON, got {value}"
+
+def test_03_turn_off_sets_low(fprime_test_api: IntegrationTestAPI, start_gds):
+    """
+    Test TURN_OFF command sets GPIO low, emits OFF event, and updates telemetry
+    """
+
+    # Send turn_on command
+    turn_off(fprime_test_api)
+
+    # Confirm Load-Switch turned OFF
+    fprime_test_api.assert_event(f"{loadswitch}.StatusChanged", args=[0], timeout=2)
+
+    # Confirm telemetry IsOn is 0
+    value = get_is_on(fprime_test_api)
+    assert value == 0, f"Expected IsOn = 0 after TURN_OFF, got {value}"