16 lines
929 B
JavaScript
16 lines
929 B
JavaScript
import assert from "node:assert/strict";
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import test from "node:test";
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import { selectedTextWithin } from "../ui/src/ui/windowSelection.ts";
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const root={contains:node=>node?.owner==="inside"};
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const node=owner=>({owner});
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const selection=(text,startOwner="inside",endOwner="inside")=>({rangeCount:1,isCollapsed:false,toString:()=>text,getRangeAt:()=>({startContainer:node(startOwner),endContainer:node(endOwner)})});
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test("selected text is snapshotted exactly only when both endpoints belong to the window",()=>{
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assert.equal(selectedTextWithin(root,selection(" alpha\nbeta "))," alpha\nbeta ");
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assert.equal(selectedTextWithin(root,selection("alpha","inside","outside")),null);
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assert.equal(selectedTextWithin(root,{...selection("alpha"),isCollapsed:true}),null);
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assert.equal(selectedTextWithin(root,{...selection("alpha"),rangeCount:0}),null);
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assert.equal(selectedTextWithin(root,selection(" ")),null);
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});
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