Handle (invalid) null hass objects.

2023-10-05 19:54:52 -07:00
parent c817601f60
commit ee8f9e3fd1
6 changed files with 107 additions and 17 deletions
@@ -0,0 +1,45 @@
+import { HomeAssistant } from 'custom-card-helpers';
+import { describe, expect, it } from 'vitest';
+import { hasHAConnectionStateChanged } from '../../../src/utils/ha/index.js';
+import { createHASS } from '../../test-utils.js';
+
+const createConnected = (connected: boolean): HomeAssistant => {
+  const hass = createHASS();
+  hass.connected = connected;
+  return hass;
+};
+
+describe('hasHAConnectionStateChanged', () => {
+  it('initially connected', () => {
+    expect(hasHAConnectionStateChanged(null, createConnected(true))).toBeTruthy();
+  });
+  it('initially disconnected', () => {
+    expect(hasHAConnectionStateChanged(null, createConnected(false))).toBeTruthy();
+  });
+  it('disconnected', () => {
+    expect(
+      hasHAConnectionStateChanged(createConnected(true), createConnected(false)),
+    ).toBeTruthy();
+  });
+  it('disconnected via absence', () => {
+    expect(hasHAConnectionStateChanged(createConnected(true), null)).toBeTruthy();
+  });
+  it('connected', () => {
+    expect(
+      hasHAConnectionStateChanged(createConnected(false), createConnected(true)),
+    ).toBeTruthy();
+  });
+  it('still disconnected', () => {
+    expect(
+      hasHAConnectionStateChanged(createConnected(false), createConnected(false)),
+    ).toBeFalsy();
+  });
+  it('still connected', () => {
+    expect(
+      hasHAConnectionStateChanged(createConnected(true), createConnected(true)),
+    ).toBeFalsy();
+  });
+  it('still absent', () => {
+    expect(hasHAConnectionStateChanged(null, null)).toBeFalsy();
+  });
+});