superset/superset-frontend/packages/superset-ui-core/test/time-format/formatters/smartDateVerbose.test.ts

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
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 * KIND, either express or implied.  See the License for the
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import { TimeFormatter, smartDateVerboseFormatter } from '@superset-ui/core';

describe('smartDateVerboseFormatter', () => {
  const formatter = smartDateVerboseFormatter;

  it('is a function', () => {
    expect(formatter).toBeInstanceOf(TimeFormatter);
  });

  it('shows only year when 1st day of the year', () => {
    expect(formatter(new Date('2020-01-01'))).toBe('2020');
  });

  it('shows month and year when 1st of month', () => {
    expect(formatter(new Date('2020-03-01'))).toBe('Mar 2020');
  });

  it('shows weekday when any day of the month', () => {
    expect(formatter(new Date('2020-03-03'))).toBe('Tue Mar 3');
    expect(formatter(new Date('2020-03-15'))).toBe('Sun Mar 15');
  });
});