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import ist from "ist" import {schema, doc, p} from "prosemirror-test-builder" import {Transform} from "prosemirror-transform" import {Node} from "prosemirror-model" import {ChangeSet} from "prosemirror-changeset" function mk(doc: Node, change: (tr: Transform) => Transform): {doc0: Node, tr: Transform, data: any[], set0: ChangeSet, set: ChangeSet} { let tr = change(new Transform(doc)) let data = new Array(tr.steps.length).fill("a") let set0 = ChangeSet.create(doc) return {doc0: doc, tr, data, set0, set: set0.addSteps(tr.doc, tr.mapping.maps, data)} } function same(a: any, b: any) { ist(JSON.stringify(a), JSON.stringify(b)) } describe("ChangeSet.changedRange", () => { it("returns null for identical sets", () => { let {set, doc0, tr, data} = mk(doc(p("foo")), tr => tr .replaceWith(2, 3, schema.text("aaaa")) .replaceWith(1, 1, schema.text("xx")) .delete(5, 7)) ist(set.changedRange(set), null) ist(set.changedRange(ChangeSet.create(doc0).addSteps(tr.doc, tr.mapping.maps, data)), null) }) it("returns only the changed range in simple cases", () => { let {set0, set, tr} = mk(doc(p("abcd")), tr => tr.replaceWith(2, 4, schema.text("u"))) same(set0.changedRange(set, tr.mapping.maps), {from: 2, to: 3}) }) it("expands to cover updated spans", () => { let {doc0, set0, set, tr} = mk(doc(p("abcd")), tr => tr .replaceWith(2, 2, schema.text("c")) .delete(3, 5)) let set1 = ChangeSet.create(doc0).addSteps(tr.docs[1], [tr.mapping.maps[0]], ["a"]) same(set0.changedRange(set1, [tr.mapping.maps[0]]), {from: 2, to: 3}) same(set1.changedRange(set, [tr.mapping.maps[1]]), {from: 2, to: 3}) }) it("detects changes in deletions", () => { let {set} = mk(doc(p("abc")), tr => tr.delete(2, 3)) same(set.changedRange(set.map(() => "b")), {from: 2, to: 2}) }) })
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test-changed-range.ts
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test-changes.ts
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