feat: Added more functions.

This commit is contained in:
Spencer Brower
2023-05-25 16:41:23 -04:00
parent fabd856ddf
commit a07d4188af
13 changed files with 401 additions and 80 deletions

View File

@@ -1,7 +1,7 @@
import { describe, expect, it } from 'vitest';
import fc from 'fast-check';
import {
/*afterFirstWord, beforeFirstWord, */ endsWith, ltrim, startsWith,
/*afterFirstWord, beforeFirstWord, */ afterFirst, afterLast, endsWith, ltrim, rtrim, trim, startsWith,
} from './index';
describe('strings', () => {
@@ -35,6 +35,24 @@ describe('strings', () => {
}));
})
});
describe('afterFirst', () => {
it('removes everything before the first needle when possible', () => {
expect(afterFirst(' ', 'foo bar bat')).toBe('bar bat');
})
it('removes nothing when needle is not present', () => {
expect(afterFirst('&', 'foo bar bat')).toBe('foo bar bat');
})
})
describe('afterLast', () => {
it('removes everything after the last needle when possible', () => {
expect(afterLast(' ', 'foo bar bat')).toBe('bat');
})
it('removes nothing when needle is not present', () => {
expect(afterLast('&', 'foo bar bat')).toBe('foo bar bat');
})
})
// describe('afterFirstWord', () => {
// it('removes the first word', () => {
// fc.assert(fc.property(fc.string(), (str) => {
@@ -49,37 +67,4 @@ describe('strings', () => {
// }));
// });
// });
describe('ltrim', () => {
it('returns input when cutset is empty', () => {
expect(ltrim('', 'foo')).toBe('foo');
});
it('returns empty when input is empty', () => {
expect(ltrim('foo', '')).toBe('');
});
it('can be curried', () => {
expect(ltrim('foo', '')).toBe(ltrim('foo')(''));
expect(ltrim(' ', 'foo')).toBe(ltrim(' ')('foo'));
});
it('trims cutset', () => {
fc.assert(fc.property(fc.string(), fc.string(), (cutset, str) => {
const got = ltrim(cutset, str);
if (cutset === '') {
expect(got).toBe(str);
} else if (str === '') {
expect(got).toBe('');
} else {
if (got === '') {
for (const char of str) {
expect(cutset).contains(char);
}
}
for (const char of cutset) {
expect(startsWith(char, got)).toBe(false);
}
}
}));
});
});
});