test(key-storage): adds test coverage for key-storage

Author: geometricpanda

Diff for: apps/www/src/app/library-components/services/color-mode/color-mode.service.ts

@@ -35,7 +35,7 @@ export class ColorModeService {
 
   private setAuto() {
     this._mode.next(ColourMode.AUTO);
-    this.storage.clear();
+    this.storage.removeItem();
     this.document.body.classList?.remove(ColourMode.LIGHT);
     this.document.body.classList?.remove(ColourMode.DARK);
   }

Diff for: apps/www/src/app/library-components/utilities/key-storage/create-key-storage.spec.ts

@@ -0,0 +1,42 @@
+import {TestBed} from "@angular/core/testing";
+import {createKeyStorage} from "./create-key-storage";
+import {KeyStorage} from "./key-storage";
+import {InMemoryStore, LocalStorageStore} from "./stores";
+
+describe('Create Key Storage', () => {
+
+  const key = 'key';
+  const defaultValue = 'default-value';
+
+  it('should return an Angular injection token', () => {
+    const token = createKeyStorage(key, defaultValue);
+    const store = TestBed.inject(token);
+    expect(store).toBeInstanceOf(KeyStorage);
+  });
+
+  it('should configure the key storage correctly', () => {
+    const token = createKeyStorage(key, defaultValue);
+    const store = TestBed.inject(token);
+    expect(store['_key']).toBe(key)
+    expect(store['_defaultValue']).toBe(defaultValue)
+  });
+
+  it('should configure the key storage to use the localStorageStore by default', () => {
+    const token = createKeyStorage(key, defaultValue);
+    const store = TestBed.inject(token);
+    expect(store['_store']).toBeInstanceOf(LocalStorageStore)
+  });
+
+  it('should configure the key storage to use the localStorage Store', () => {
+    const token = createKeyStorage(key, defaultValue, );
+    const store = TestBed.inject(token);
+    expect(store['_store']).toBeInstanceOf(LocalStorageStore)
+  });
+
+  it('should configure the key storage to use the InMemory Store', () => {
+    const token = createKeyStorage(key, defaultValue, new InMemoryStore());
+    const store = TestBed.inject(token);
+    expect(store['_store']).toBeInstanceOf(InMemoryStore)
+  });
+
+})

Diff for: apps/www/src/app/library-components/utilities/key-storage/key-storage.spec.ts

@@ -0,0 +1,52 @@
+import {KeyStorage} from "./key-storage";
+import {InMemoryStore} from "./stores";
+
+describe('Key Storage', () => {
+
+  const key = 'key';
+  const defaultValue = 'default';
+
+  let store: KeyStorage;
+
+  beforeEach(() => {
+    store = new KeyStorage(
+      key,
+      defaultValue,
+      new InMemoryStore(),
+    );
+  });
+
+  it('should return a stored record', () => {
+    const record = 'value';
+    store.setItem(record);
+
+    const returnedRecord = store.getItem();
+    expect(returnedRecord).toEqual(record);
+  });
+
+  it('should overwrite the value', () => {
+    const record1 = 'value';
+    const record2 = 'value-2';
+
+    store.setItem(record1);
+    store.setItem(record2);
+
+    const returnedRecord = store.getItem();
+    expect(returnedRecord).toEqual(record2);
+  });
+
+  it('should return the default value if the record doesnt exist', () => {
+    const returnedRecord = store.getItem();
+    expect(returnedRecord).toBe(defaultValue);
+  });
+
+  it('should return the default value for removed records', () => {
+    const record = 'value';
+    store.setItem(record);
+    store.removeItem();
+
+    const returnedRecord = store.getItem();
+    expect(returnedRecord).toEqual(defaultValue);
+  });
+
+})

Diff for: apps/www/src/app/library-components/utilities/key-storage/key-storage.ts

@@ -19,7 +19,7 @@ export class KeyStorage<T = unknown> {
     this._store.setItem(this._key, data);
   }
 
-  clear(): void {
+  removeItem(): void {
     this._store.removeItem(this._key);
   }