test(files): assert every peer edit lands (no false-green from a no-op peerInsertNear)

Author: waleedlatif1

apps/sim/app/workspace/[workspaceId]/files/components/file-viewer/rich-markdown-editor/collaboration/apply-streamed-markdown.concurrent.test.ts

@@ -168,7 +168,7 @@ describe('two-writer: peer edits while the agent streams', () => {
 
     applyAgentStreamFrame(A.editor, session, '# Title\n\noriginal body text extended')
     // Peer edits the SAME paragraph the agent is rewriting.
-    peerInsertNear(B.editor, 'original', 'PEER ')
+    expect(peerInsertNear(B.editor, 'original', 'PEER ')).toBe(true)
     applyAgentStreamFrame(A.editor, session, '# Title\n\nagent fully rewrote this paragraph')
     endAgentStream(session)
 

apps/sim/app/workspace/[workspaceId]/files/components/file-viewer/rich-markdown-editor/collaboration/collab-streaming-integration.test.ts

@@ -90,8 +90,8 @@ describe('collab streaming integration — moving pieces', () => {
 
     const session = beginAgentStream(A.editor)!
     applyAgentStreamFrame(A.editor, session, '# Title\n\nAlpha\n\nBeta\n\nGamma\n\nDelta')
-    peerInsertNear(B.editor, 'Alpha', 'B_EDIT ') // peer B edits the top
-    peerInsertNear(C.editor, 'Gamma', 'C_EDIT ') // peer C edits the bottom
+    expect(peerInsertNear(B.editor, 'Alpha', 'B_EDIT ')).toBe(true) // peer B edits the top
+    expect(peerInsertNear(C.editor, 'Gamma', 'C_EDIT ')).toBe(true) // peer C edits the bottom
     applyAgentStreamFrame(
       A.editor,
       session,
@@ -120,7 +120,7 @@ describe('collab streaming integration — moving pieces', () => {
     Y.applyUpdate(B.doc, Y.encodeStateAsUpdate(A.doc))
     wireMesh([A.doc, B.doc])
 
-    peerInsertNear(B.editor, 'base', 'PEER_UNDOABLE ') // peer's own edit (goes on peer's undo stack)
+    expect(peerInsertNear(B.editor, 'base', 'PEER_UNDOABLE ')).toBe(true) // peer's own edit (undo stack)
     const session = beginAgentStream(A.editor)!
     applyAgentStreamFrame(
       A.editor,