oe-ui-test

Testing & Quality

Use when writing or fixing Angular/Ionic UI tests in the FEMS/OpenEMS UI (Karma/Jasmine), including formly view tests, chart tests, and component unit tests.

QUICK START

How to use this skill

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I want to install this Agent Skill for this project in Codex.

Source SKILL.md: https://github.com/OpenEMS/openems/blob/HEAD/.github/skills/oe-ui-test/SKILL.md

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First, summarize what it does, its dependencies, license status if identifiable, and any risks. Show the exact files you propose to add under .agents/skills/oe-ui-test/. Do not write files or run scripts until I approve.

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Copying this prompt does not install or run the skill. Review third-party files before use. Codex skill guide

FEMS UI Test Skill

Use this skill when writing or fixing Angular/Ionic tests under ui/src/app/.

Framework

Use Karma + Jasmine.
Run tests from ui/.
Use // @ts-strict-ignore only when unavoidable and consistent with nearby specs.

Core Utilities

Testing helpers live in ui/src/app/shared/components/shared/testing/:

utils.spec.ts: TestContext, TestingUtils
tester.ts: OeFormlyViewTester, OeChartTester
common.ts: OeTester.ChartOptions
channels.spec.ts: reusable channel fixtures

Use DummyConfig from src/app/shared/components/edge/edgeconfig.spec.ts for EdgeConfig and Edge test data. Do not manually construct EdgeConfig or Edge.

Setup Patterns

let testContext: TestContext;

beforeEach(async () => {
    testContext = await TestingUtils.sharedSetup();
});

For routed components with a componentId route parameter:

let testContext: TestContext & { route: ActivatedRoute };

beforeEach(async () => {
    testContext = await TestingUtils.setupWithActivatedRoute("meter0");
});

For extra providers/imports, use TestingUtils.mergeSetup(...) and follow nearby specs.

DummyConfig

import { DummyConfig } from "src/app/shared/components/edge/edgeconfig.spec";

const config = DummyConfig.from(
    DummyConfig.Component.SOCOMEC_CONSUMPTION_METER("meter0"),
);

const edge = DummyConfig.dummyEdge({ role: Role.OWNER });

Inspect DummyConfig.Component in edgeconfig.spec.ts for available component factories before adding new ones. For chart tests, convert dummy configs before use:

const realConfig = DummyConfig.convertDummyEdgeConfigToRealEdgeConfig(config);

Formly View Tests

Use OeFormlyViewTester for components exposing generateView():

expect(OeFormlyViewTester.apply(
    MyComponent.generateView(testContext.translate, component, edge),
    { "component0/ActivePower": 3000 },
)).toEqual({
    title: "My Component",
    lines: [
        CHANNEL_LINE("Power", "3.000 W"),
    ],
});

Common line helpers include CHANNEL_LINE, VALUE_FROM_CHANNELS_LINE, LINE_INFO, LINE_HORIZONTAL, PHASE_ADMIN, and PHASE_GUEST. Inspect edgeconfig.spec.ts for the full helper list.

Chart Tests

Use OeChartTester for history chart components exposing getChartData(). Always wrap both sides of chart comparisons in TestingUtils.removeFunctions().

expect(TestingUtils.removeFunctions(
    OeChartTester.apply(
        MyChartComponent.getChartData(
            DummyConfig.convertDummyEdgeConfigToRealEdgeConfig(config),
            testContext.route,
            testContext.translate,
        ),
        "line",
        History.DAY,
        testContext,
        config,
    ),
)).toEqual(TestingUtils.removeFunctions(expectedView));

Use DATA and LABELS from chart test constants where nearby specs do. Use OeTester.ChartOptions helpers for chart options; inspect common.ts for the full list.

Conventions

Set testContext.translate.use("de") or "en" when asserting translated strings.
Prefer separate it() blocks per scenario.
Keep channel fixtures such as History.DAY and History.MONTH in a nearby channels.spec.ts.
Do not declare components in TestBed unless the component under test requires it.

Validation

Run from ui/:

npm test
npm run lint