simplify before-inline split-block test

src/transforms/at-current-range.js

@@ -312,10 +312,27 @@ export function splitBlock(transform, depth = 1) {
   state = transform.state
   document = state.document
 
-  const { startKey } = selection
-  const startNode = document.getDescendant(startKey)
-  const nextNode = document.getNextText(startNode.key)
-  const after = selection.collapseToStartOf(nextNode)
+  const { startKey, startOffset } = selection
+  const startText = document.getNode(startKey)
+  const startBlock = document.getClosestBlock(startKey)
+  const startInline = startBlock.getFurthestInline(startKey)
+  const nextText = document.getNextText(startText.key)
+  let after
+
+  // If the selection is at the start of the highest inline child inside the
+  // block, the starting text node won't need to be split.
+  if (
+    (startOffset == 0) &&
+    (startText == startInline || startInline.getOffset(startText.key) == 0)
+  ) {
+    after = selection.collapseToStartOf(startText)
+  }
+
+  // Otherwise, we'll need to move the selection forward one to account for the
+  // text node that was split.
+  else {
+    after = selection.collapseToStartOf(nextText)
+  }
 
   return transform.moveTo(after)
 }

test/transforms/fixtures/at-current-range/split-block/before-inline/index.js

@@ -4,12 +4,12 @@ import assert from 'assert'
 export default function (state) {
   const { document, selection } = state
   const texts = document.getTexts()
-  const first = texts.first()
+  const second = texts.get(1)
   const range = selection.merge({
-    anchorKey: first.key,
-    anchorOffset: 4,
-    focusKey: first.key,
-    focusOffset: 4
+    anchorKey: second.key,
+    anchorOffset: 0,
+    focusKey: second.key,
+    focusOffset: 0
   })
 
   const next = state
@@ -17,12 +17,6 @@ export default function (state) {
     .moveTo(range)
     .splitBlock()
     .apply()
-    .transform()
-    .deleteBackward()
-    .apply()
-    .transform()
-    .splitBlock()
-    .apply()
 
   const updated = next.document.getTexts().get(1)
 

test/transforms/fixtures/at-current-range/split-block/before-inline/input.yaml

@@ -12,8 +12,5 @@ nodes:
         nodes:
           - kind: text
             text: hyperlink
-  - kind: block
-    type: paragraph
-    nodes:
       - kind: text
-        text: word
+        text: word

test/transforms/fixtures/at-current-range/split-block/before-inline/output.yaml

@@ -15,8 +15,5 @@ nodes:
         nodes:
           - kind: text
             text: hyperlink
-  - kind: block
-    type: paragraph
-    nodes:
       - kind: text
         text: word