add bunch of tests for relative positions

yjs · Jan 9, 2021 · 6f074a8 · 6f074a8
1 parent 4af04d6
commit 6f074a8
Showing 1 changed file with 86 additions and 11 deletions.
diff --git a/tests/relativePositions.tests.js b/tests/relativePositions.tests.js
@@ -3,27 +3,102 @@ import * as Y from '../src/internals'
 import * as t from 'lib0/testing.js'
 
 /**
- * @param {t.TestCase} tc
+ * @param {Y.YText} ytext
  */
-export const testRelativePosition = tc => {
-  const ydoc = new Y.Doc()
-  const ytext = ydoc.getText()
-  ytext.insert(0, '1')
-  ytext.insert(0, 'abc')
-  ytext.insert(0, 'z')
-  ytext.insert(0, 'y')
-  ytext.insert(0, 'x')
-
+const checkRelativePositions = ytext => {
   // test if all positions are encoded and restored correctly
   for (let i = 0; i < ytext.length; i++) {
     // for all types of associations..
     for (let assoc = -1; assoc < 2; assoc++) {
       const rpos = Y.createRelativePositionFromTypeIndex(ytext, i, assoc)
       const encodedRpos = Y.encodeRelativePosition(rpos)
       const decodedRpos = Y.decodeRelativePosition(encodedRpos)
-      const absPos = /** @type {Y.AbsolutePosition} */ (Y.createAbsolutePositionFromRelativePosition(decodedRpos, ydoc))
+      const absPos = /** @type {Y.AbsolutePosition} */ (Y.createAbsolutePositionFromRelativePosition(decodedRpos, /** @type {Y.Doc} */ (ytext.doc)))
       t.assert(absPos.index === i)
       t.assert(absPos.assoc === assoc)
     }
   }
 }
+
+/**
+ * @param {t.TestCase} tc
+ */
+export const testRelativePositionCase1 = tc => {
+  const ydoc = new Y.Doc()
+  const ytext = ydoc.getText()
+  ytext.insert(0, '1')
+  ytext.insert(0, 'abc')
+  ytext.insert(0, 'z')
+  ytext.insert(0, 'y')
+  ytext.insert(0, 'x')
+  checkRelativePositions(ytext)
+}
+
+/**
+ * @param {t.TestCase} tc
+ */
+export const testRelativePositionCase2 = tc => {
+  const ydoc = new Y.Doc()
+  const ytext = ydoc.getText()
+  ytext.insert(0, 'abc')
+  checkRelativePositions(ytext)
+}
+
+/**
+ * @param {t.TestCase} tc
+ */
+export const testRelativePositionCase3 = tc => {
+  const ydoc = new Y.Doc()
+  const ytext = ydoc.getText()
+  ytext.insert(0, 'abc')
+  ytext.insert(0, '1')
+  ytext.insert(0, 'xyz')
+  checkRelativePositions(ytext)
+}
+
+/**
+ * @param {t.TestCase} tc
+ */
+export const testRelativePositionCase4 = tc => {
+  const ydoc = new Y.Doc()
+  const ytext = ydoc.getText()
+  ytext.insert(0, '1')
+  checkRelativePositions(ytext)
+}
+
+/**
+ * @param {t.TestCase} tc
+ */
+export const testRelativePositionCase5 = tc => {
+  const ydoc = new Y.Doc()
+  const ytext = ydoc.getText()
+  ytext.insert(0, '2')
+  ytext.insert(0, '1')
+  checkRelativePositions(ytext)
+}
+
+/**
+ * @param {t.TestCase} tc
+ */
+export const testRelativePositionCase6 = tc => {
+  const ydoc = new Y.Doc()
+  const ytext = ydoc.getText()
+  checkRelativePositions(ytext)
+}
+
+/**
+ * @param {t.TestCase} tc
+ */
+export const testRelativePositionAssociationDifference = tc => {
+  const ydoc = new Y.Doc()
+  const ytext = ydoc.getText()
+  ytext.insert(0, '2')
+  ytext.insert(0, '1')
+  const rposRight = Y.createRelativePositionFromTypeIndex(ytext, 1, 0)
+  const rposLeft = Y.createRelativePositionFromTypeIndex(ytext, 1, -1)
+  ytext.insert(1, 'x')
+  const posRight = Y.createAbsolutePositionFromRelativePosition(rposRight, ydoc)
+  const posLeft = Y.createAbsolutePositionFromRelativePosition(rposLeft, ydoc)
+  t.assert(posRight != null && posRight.index === 2)
+  t.assert(posLeft != null && posLeft.index === 1)
+}