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Use joiner to split unicode

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This commit is contained in:
Sidharth Vinod
2023-06-13 11:42:39 +05:30
parent dd4e14690d
commit b36a0177db
2 changed files with 46 additions and 12 deletions
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29
packages/mermaid/src/rendering-util/splitText.spec.ts
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@@ -13,26 +13,43 @@ describe('splitText', () => {
});
describe('split lines', () => {
const createCheckFn = (width: number): CheckFitFunction => {
return (text: string) => {
return splitTextToChars(text).length <= width;
};
};
it.each([
// empty string
{ str: '', width: 1, split: [''] },
// Width >= Individual words
{ str: 'hello world', width: 5, split: ['hello', 'world'] },
{ str: 'hello world', width: 7, split: ['hello', 'world'] },
// width > full line
{ str: 'hello world', width: 20, split: ['hello world'] },
// width < individual word
{ str: 'hello world', width: 3, split: ['hel', 'lo', 'wor', 'ld'] },
{ str: 'hello 12 world', width: 4, split: ['hell', 'o 12', 'worl', 'd'] },
{ str: 'hello 1 2 world', width: 4, split: ['hell', 'o 1', '2', 'worl', 'd'] },
{ str: 'hello 1 2 world', width: 6, split: ['hello', ' 1 2', 'world'] },
{ str: '🏳️‍⚧️🏳️‍🌈👩🏾‍❤️‍👨🏻', width: 1, split: ['🏳️‍⚧️', '🏳️‍🌈', '👩🏾‍❤️‍👨🏻'] },
{ str: '🏳️‍⚧️🏳️‍🌈👩🏾‍❤️‍👨🏻', width: 2, split: ['🏳️‍⚧️🏳️‍🌈', '👩🏾‍❤️‍👨🏻'] },
{ str: '🏳️‍⚧️🏳️‍🌈👩🏾‍❤️‍👨🏻', width: 3, split: ['🏳️‍⚧️🏳️‍🌈👩🏾‍❤️‍👨🏻'] },
{ str: '中文中', width: 1, split: ['中', '文', '中'] },
{ str: '中文中', width: 2, split: ['中文', '中'] },
{ str: '中文中', width: 3, split: ['中文中'] },
{ str: 'Flag 🏳️‍⚧️ this 🏳️‍🌈', width: 6, split: ['Flag 🏳️‍⚧️', 'this 🏳️‍🌈'] },
])(
'should split $str into lines of $width characters',
({ str, split, width }: { str: string; width: number; split: string[] }) => {
const checkFn: CheckFitFunction = (text: string) => {
return splitTextToChars(text).length <= width;
};
const checkFn = createCheckFn(width);
expect(splitLineToFitWidth(str, checkFn)).toEqual(split);
}
);
it('should handle strings with newlines', () => {
const checkFn: CheckFitFunction = createCheckFn(6);
const str = `Flag
🏳️‍⚧️ this 🏳️‍🌈`;
expect(() => splitLineToFitWidth(str, checkFn)).toThrowErrorMatchingInlineSnapshot(
'"splitLineToFitWidth does not support newlines in the line"'
);
});
});