import localStorage from 'consul-ui/utils/storage/local-storage';
import { module, test } from 'qunit';

module('Unit | Utility | storage/local-storage');

// Replace this with your real tests.
const mockStorage = function(obj, encode = val => val, decode = val => val) {
  return localStorage('test', obj, encode, decode);
};
test('getValue returns an empty string if the value is null', function(assert) {
  const expected = '""';
  const storage = mockStorage({
    getItem: function(path) {
      return null;
    },
  });
  const actual = storage.getValue('test');
  assert.equal(actual, expected);
});
test('getValue uses the scheme in the path', function(assert) {
  assert.expect(1);
  const expected = 'test:test';
  const storage = mockStorage({
    getItem: function(actual) {
      assert.equal(actual, expected);
      return '';
    },
  });
  storage.getValue('test');
});
test('setValue uses the scheme in the path', function(assert) {
  assert.expect(1);
  const expected = 'test:test';
  const storage = mockStorage({
    setItem: function(actual, value) {
      assert.equal(actual, expected);
      return '';
    },
  });
  storage.setValue('test');
});
test('setValue calls removeItem if the value is null', function(assert) {
  assert.expect(1);
  const expected = 'test:test';
  const storage = mockStorage({
    removeItem: function(actual) {
      assert.equal(actual, expected);
    },
  });
  storage.setValue('test', null);
});
test('all returns an object of kvs under the correct prefix/scheme', function(assert) {
  const storage = mockStorage({
    'tester:a': 'a',
    b: 'b',
    'test:a': 'a',
    'test:b': 'b',
    getItem: function(path) {
      return this[path];
    },
  });
  const expected = {
    a: 'a',
    b: 'b',
  };
  const actual = storage.all();
  assert.deepEqual(actual, expected);
});