scratch-paint/test/unit/format-reducer.test.js

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/* eslint-env jest */
import Formats from '../../src/lib/format';
import reducer from '../../src/reducers/format';
import {changeFormat} from '../../src/reducers/format';
import {undo, redo} from '../../src/reducers/undo';
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test('initialState', () => {
let defaultState;
expect(reducer(defaultState /* state */, {type: 'anything'} /* action */) in Formats).toBeTruthy();
});
test('changeFormat', () => {
let defaultState;
expect(reducer(defaultState /* state */, changeFormat(Formats.BITMAP) /* action */)).toBe(Formats.BITMAP);
expect(reducer(Formats.BITMAP /* state */, changeFormat(Formats.BITMAP) /* action */))
.toBe(Formats.BITMAP);
expect(reducer(Formats.BITMAP /* state */, changeFormat(Formats.VECTOR) /* action */))
.toBe(Formats.VECTOR);
});
test('undoRedoChangeFormat', () => {
let defaultState;
let reduxState = reducer(defaultState /* state */, changeFormat(Formats.BITMAP) /* action */);
expect(reduxState).toBe(Formats.BITMAP);
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reduxState = reducer(reduxState /* state */, undo(Formats.BITMAP_SKIP_CONVERT) /* action */);
expect(reduxState).toBe(Formats.BITMAP_SKIP_CONVERT);
reduxState = reducer(reduxState /* state */, redo(Formats.VECTOR_SKIP_CONVERT) /* action */);
expect(reduxState).toBe(Formats.VECTOR_SKIP_CONVERT);
});
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test('invalidChangeMode', () => {
expect(reducer(Formats.BITMAP /* state */, changeFormat('non-existant mode') /* action */))
.toBe(Formats.BITMAP);
expect(reducer(Formats.BITMAP /* state */, changeFormat() /* action */)).toBe(Formats.BITMAP);
});