/* Copyright 2019 Mozilla Foundation * * Licensed 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 "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import { Dict, Ref } from '../../src/core/primitives'; import { getInheritableProperty, toRomanNumerals } from '../../src/core/core_utils'; import { XRefMock } from './test_utils'; describe('core_utils', function() { describe('getInheritableProperty', function() { it('handles non-dictionary arguments', function() { expect(getInheritableProperty({ dict: null, key: 'foo', })) .toEqual(undefined); expect(getInheritableProperty({ dict: undefined, key: 'foo', })) .toEqual(undefined); }); it('handles dictionaries that do not contain the property', function() { // Empty dictionary. const emptyDict = new Dict(); expect(getInheritableProperty({ dict: emptyDict, key: 'foo', })) .toEqual(undefined); // Filled dictionary with a different property. const filledDict = new Dict(); filledDict.set('bar', 'baz'); expect(getInheritableProperty({ dict: filledDict, key: 'foo', })) .toEqual(undefined); }); it('fetches the property if it is not inherited', function() { const ref = new Ref(10, 0); const xref = new XRefMock([{ ref, data: 'quux', }]); const dict = new Dict(xref); // Regular values should be fetched. dict.set('foo', 'bar'); expect(getInheritableProperty({ dict, key: 'foo', })).toEqual('bar'); // Array value should be fetched (with references resolved). dict.set('baz', ['qux', ref]); expect(getInheritableProperty({ dict, key: 'baz', getArray: true, })) .toEqual(['qux', 'quux']); }); it('fetches the property if it is inherited and present on one level', function() { const ref = new Ref(10, 0); const xref = new XRefMock([{ ref, data: 'quux', }]); const firstDict = new Dict(xref); const secondDict = new Dict(xref); firstDict.set('Parent', secondDict); // Regular values should be fetched. secondDict.set('foo', 'bar'); expect(getInheritableProperty({ dict: firstDict, key: 'foo', })) .toEqual('bar'); // Array value should be fetched (with references resolved). secondDict.set('baz', ['qux', ref]); expect(getInheritableProperty({ dict: firstDict, key: 'baz', getArray: true, })) .toEqual(['qux', 'quux']); }); it('fetches the property if it is inherited and present on multiple levels', function() { const ref = new Ref(10, 0); const xref = new XRefMock([{ ref, data: 'quux', }]); const firstDict = new Dict(xref); const secondDict = new Dict(xref); firstDict.set('Parent', secondDict); // Regular values should be fetched. firstDict.set('foo', 'bar1'); secondDict.set('foo', 'bar2'); expect(getInheritableProperty({ dict: firstDict, key: 'foo', })) .toEqual('bar1'); expect(getInheritableProperty({ dict: firstDict, key: 'foo', getArray: false, stopWhenFound: false, })) .toEqual(['bar1', 'bar2']); // Array value should be fetched (with references resolved). firstDict.set('baz', ['qux1', ref]); secondDict.set('baz', ['qux2', ref]); expect(getInheritableProperty({ dict: firstDict, key: 'baz', getArray: true, stopWhenFound: false, })) .toEqual([['qux1', 'quux'], ['qux2', 'quux']]); }); it('stops searching when the loop limit is reached', function() { const dict = new Dict(); let currentDict = dict; let parentDict = null; for (let i = 0; i < 150; i++) { // Exceeds the loop limit of 100. parentDict = new Dict(); currentDict.set('Parent', parentDict); currentDict = parentDict; } parentDict.set('foo', 'bar'); // Never found because of loop limit. expect(getInheritableProperty({ dict, key: 'foo', })).toEqual(undefined); dict.set('foo', 'baz'); expect(getInheritableProperty({ dict, key: 'foo', getArray: false, stopWhenFound: false, })) .toEqual(['baz']); }); }); describe('toRomanNumerals', function() { it('handles invalid arguments', function() { for (const input of ['foo', -1, 0]) { expect(function() { toRomanNumerals(input); }).toThrow(new Error('The number should be a positive integer.')); } }); it('converts numbers to uppercase Roman numerals', function() { expect(toRomanNumerals(1)).toEqual('I'); expect(toRomanNumerals(6)).toEqual('VI'); expect(toRomanNumerals(7)).toEqual('VII'); expect(toRomanNumerals(8)).toEqual('VIII'); expect(toRomanNumerals(10)).toEqual('X'); expect(toRomanNumerals(40)).toEqual('XL'); expect(toRomanNumerals(100)).toEqual('C'); expect(toRomanNumerals(500)).toEqual('D'); expect(toRomanNumerals(1000)).toEqual('M'); expect(toRomanNumerals(2019)).toEqual('MMXIX'); }); it('converts numbers to lowercase Roman numerals', function() { expect(toRomanNumerals(1, /* lowercase = */ true)).toEqual('i'); expect(toRomanNumerals(6, /* lowercase = */ true)).toEqual('vi'); expect(toRomanNumerals(7, /* lowercase = */ true)).toEqual('vii'); expect(toRomanNumerals(8, /* lowercase = */ true)).toEqual('viii'); expect(toRomanNumerals(10, /* lowercase = */ true)).toEqual('x'); expect(toRomanNumerals(40, /* lowercase = */ true)).toEqual('xl'); expect(toRomanNumerals(100, /* lowercase = */ true)).toEqual('c'); expect(toRomanNumerals(500, /* lowercase = */ true)).toEqual('d'); expect(toRomanNumerals(1000, /* lowercase = */ true)).toEqual('m'); expect(toRomanNumerals(2019, /* lowercase = */ true)).toEqual('mmxix'); }); }); });