test('SET_FILTER adds a new filter', () => {
const key = 'test';
const value = 'test-value';
const expected = {
test: ['test-value']
};
expect(reducer({}, { type: 'SET_FILTER', key, value })).toEqual(expected);
});
test('SET_FILTER ignores duplicates', () => {
const key = 'test';
const value = 'test-value-1';
const initial = {
test: ['test-value-1']
};
const expected = {
test: ['test-value-1']
};
expect(reducer(initial, { type: 'SET_FILTER', key, value })).toEqual(expected);
});
test('SET_FILTER sets to an empty array if passed a falsy value', () => {
const key = 'test';
const value = null;
const initial = {
test: ['test-value-1']
};
const expected = {
test: []
};
expect(reducer(initial, { type: 'SET_FILTER', key, value })).toEqual(expected);
});
test('SET_FILTER replaces an existing filter for a key', () => {
const key = 'test';
const value = 'test-value-2';
const initial = {
test: ['test-value-1']
};
const expected = {
test: ['test-value-2']
};
expect(reducer(initial, { type: 'SET_FILTER', key, value })).toEqual(expected);
});
test('SET_FILTERS overwrites existing filters', () => {
const initial = {
test: ['test-value-1']
};
const input = {
test: ['test-value-2']
};
const expected = {
test: ['test-value-2']
};
expect(reducer(initial, { type: 'SET_FILTERS', filters: input })).toEqual(expected);
});
test('SET_FILTER removes filters on other keys', () => {
const initial = {
test: ['test-value-1']
};
const input = {
'*': ['test']
};
const expected = {
'*': ['test']
};
expect(reducer(initial, { type: 'SET_FILTERS', filters: input })).toEqual(expected);
});
filters: (state, action) => history.filters(filters(state, action), action),
test('returns an empty object on init', () => {
const expected = {};
expect(reducer(undefined, {})).toEqual(expected);
});
test('SET_FILTERS sets the state', () => {
const expected = {
'*': ['test']
};
expect(reducer(undefined, { type: 'SET_FILTERS', filters: expected })).toEqual(expected);
});