44 lines
1.5 KiB
TypeScript
44 lines
1.5 KiB
TypeScript
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import ist from "ist"
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import {EditorSelection, SelectionRange} from "@codemirror/next/state"
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describe("EditorSelection", () => {
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it("stores ranges with a primary range", () => {
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let sel = EditorSelection.create([new SelectionRange(0, 1), new SelectionRange(3, 2), new SelectionRange(4, 5)], 1)
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ist(sel.primary.from, 2)
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ist(sel.primary.to, 3)
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ist(sel.primary.anchor, 3)
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ist(sel.primary.head, 2)
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ist(sel.ranges.map(r => r.anchor + "/" + r.head).join(","), "0/1,3/2,4/5")
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})
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it("merges and sorts ranges when normalizing", () => {
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let sel = EditorSelection.create([
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new SelectionRange(10, 12),
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new SelectionRange(6, 7),
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new SelectionRange(4, 5),
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new SelectionRange(3, 4),
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new SelectionRange(0, 6),
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new SelectionRange(7, 8),
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new SelectionRange(9, 13),
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new SelectionRange(13, 14)
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])
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ist(sel.ranges.map(r => r.anchor + "/" + r.head).join(","), "0/6,6/7,7/8,9/13,13/14")
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})
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it("merges adjacent point ranges when normalizing", () => {
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let sel = EditorSelection.create([
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new SelectionRange(10, 12),
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new SelectionRange(12, 12),
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new SelectionRange(12, 12),
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new SelectionRange(10, 10),
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new SelectionRange(8, 10)
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])
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ist(sel.ranges.map(r => r.anchor + "/" + r.head).join(","), "8/10,10/12")
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})
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it("preserves the direction of the last range when merging ranges", () => {
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let sel = EditorSelection.create([new SelectionRange(0, 2), new SelectionRange(10, 1)])
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ist(sel.ranges.map(r => r.anchor + "/" + r.head).join(","), "10/0")
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})
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})
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