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Write unit tests for the string32 and toRomanNumerals utility functions

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Tim van der Meij 2019-02-10 18:58:52 +01:00
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commit b6eddc40b5
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46
test/unit/util_spec.js
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@ -17,7 +17,7 @@ import {
bytesToString, createPromiseCapability, createValidAbsoluteUrl,
getInheritableProperty, isArrayBuffer, isBool, isEmptyObj, isNum,
isSameOrigin, isSpace, isString, log2, ReadableStream, removeNullCharacters,
stringToBytes, stringToPDFString, URL
string32, stringToBytes, stringToPDFString, toRomanNumerals, URL
} from '../../src/shared/util';
import { Dict, Ref } from '../../src/core/primitives';
import { XRefMock } from './test_utils';
@ -254,6 +254,14 @@ describe('util', function() {
});
});
describe('string32', function() {
it('converts unsigned 32-bit integers to strings', function() {
expect(string32(0x74727565)).toEqual('true');
expect(string32(0x74797031)).toEqual('typ1');
expect(string32(0x4F54544F)).toEqual('OTTO');
});
});
describe('stringToBytes', function() {
it('handles non-string arguments', function() {
expect(function() {
@ -313,6 +321,42 @@ describe('util', function() {
});
});
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');
});
});
describe('URL', function() {
it('should return an Object', function() {
const url = new URL('https://example.com');