add getTheme unit test

www/__tests__/appTheme.test.ts

@@ -0,0 +1,22 @@
+import { getTheme } from '../js/appTheme';
+
+describe('getTheme', () => {
+  it('should return the right theme with place', () => {
+    const theme = getTheme('place');
+    expect(theme.colors.elevation.level1).toEqual('#cbe6ff');
+  });
+
+  it('should return the right theme with untracked', () => {
+    const theme = getTheme('untracked');
+    expect(theme.colors.primary).toEqual('#8c4a57');
+    expect(theme.colors.primaryContainer).toEqual('#e3bdc2');
+    expect(theme.colors.elevation.level1).toEqual('#f8ebec');
+  });
+
+  it('should return the right theme with draft', () => {
+    const theme = getTheme('draft');
+    expect(theme.colors.primary).toEqual('#616971');
+    expect(theme.colors.primaryContainer).toEqual('#b6bcc2');
+    expect(theme.colors.background).toEqual('#eef1f4');
+  });
+});