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LibJS: Implement Intl %SegmentIteratorPrototype%.next ( )

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This commit is contained in:
Idan Horowitz 2022-01-30 21:34:41 +02:00
parent 366468f1de
commit 2cd3d4a287
6 changed files with 102 additions and 7 deletions
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46
Userland/Libraries/LibJS/Tests/builtins/Intl/Segmenter/Segmenter.prototype.segment.js
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@ -53,10 +53,54 @@ describe("correct behavior", () => {
});
test("returns segments object segment iterator", () => {
const string = "hello friends!";
const segmenter = new Intl.Segmenter();
const segments = segmenter.segment("hello friends!");
const segments = segmenter.segment(string);
expect(Object.getPrototypeOf(segments[Symbol.iterator]())[Symbol.toStringTag]).toBe(
"Segmenter String Iterator"
);
const graphemeSegmenter = new Intl.Segmenter("en", { granularity: "grapheme" });
const graphemeSegments = graphemeSegmenter.segment(string);
let index = 0;
for (const segment of graphemeSegments) {
expect(segment.segment).toBe(string[index]);
expect(segment.index).toBe(index);
expect(segment.input).toBe(string);
expect(segment.isWordLike).toBeUndefined();
index++;
}
expect(index).toBe(string.length);
const wordSegmenter = new Intl.Segmenter("en", { granularity: "word" });
const wordSegments = wordSegmenter.segment(string);
const expectedSegments = [
{ segment: "hello", index: 0, isWordLike: true },
{ segment: " ", index: 5, isWordLike: false },
{ segment: "friends", index: 6, isWordLike: true },
{ segment: "!", index: 13, isWordLike: false },
];
index = 0;
for (const segment of wordSegments) {
console.log(JSON.stringify(segment));
expect(segment.segment).toBe(expectedSegments[index].segment);
expect(segment.index).toBe(expectedSegments[index].index);
expect(segment.input).toBe(string);
// FIXME: expect(segment.isWordLike).toBe(expectedSegments[index].isWordLike);
index++;
}
expect(index).toBe(expectedSegments.length);
const sentenceSegmenter = new Intl.Segmenter("en", { granularity: "sentence" });
const sentenceSegments = sentenceSegmenter.segment(string);
index = 0;
for (const segment of sentenceSegments) {
expect(segment.segment).toBe(string);
expect(segment.index).toBe(0);
expect(segment.input).toBe(string);
expect(segment.isWordLike).toBeUndefined();
index++;
}
expect(index).toBe(1);
});
});