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in repository https://gitbox.apache.org/repos/asf/texera.git

commit 3d38b2bdcddeb494b71bf9e3e7b01395ef2780ec
Author: Meng Wang <[email protected]>
AuthorDate: Thu Jul 23 20:46:58 2026 -0700

    test(frontend): cover JointGraphWrapper highlighting, flags, zoom and 
coeditor paths (#6830)
    
    ### What changes were proposed in this PR?
    
    Extends the existing `JointGraphWrapper` spec to cover the remaining
    unit-testable (non-rendering) methods
    
    
(`frontend/src/app/workspace/service/workflow-graph/model/joint-graph-wrapper.ts`).
    The wrapper is built over a headless `new joint.dia.Graph()` with no
    `dia.Paper`, matching the spec's existing setup. No production code was
    changed.
    
    19 tests, grouped by the families the issue lists:
    
    **Highlighting** — `highlightLinks` / `unhighlightLinks`,
    `highlightCommentBoxes` / `unhighlightCommentBoxes`, `highlightPorts` /
    `unhighlightPorts`, each asserted through the matching
    `getCurrentHighlighted*IDs` getter *and* its highlight/unhighlight
    stream;
    single-select (the default) dropping the previous highlight vs
    `setMultiSelectMode(true)`
    keeping it; `getCurrentHighlights` / `getCurrentHighlightedIDs`
    aggregation
    (ports are deliberately excluded from the latter); `unhighlightElements`
    clearing all four families; and the group highlight streams, which
    operator
    highlighting does not touch.
    
    **Flags** — `setReloadingWorkflow` / `getReloadingWorkflow` and
    `setListenPositionChange` / `getListenPositionChange` round-trips.
    
    **Zoom** — `setZoomProperty` updating the ratio and emitting on the zoom
    stream,
    `isZoomRatioMin` / `isZoomRatioMax` at the configured bounds, and
    `restoreDefaultZoomAndOffset` resetting to `INIT_ZOOM_VALUE` while
    signalling a
    paper-offset restore.
    
    **Cell layer / breakpoints / position** — `getCellLayer` (z index, and
    the throw
    for an unknown cell), `getLinkIDsWithBreakpoint`, and
    `getElementPositionChangeEvent` reporting a moved element's old/new
    position.
    
    **Coeditor presence** — `addCoeditorOperatorHighlight` /
    `deleteCoeditorOperatorHighlight`, `setCurrentEditing` /
    `removeCurrentEditing`,
    and `setPropertyChanged` / `removePropertyChanged`. These reach the
    canvas
    through `getMainJointPaper()?.`, so with no paper attached they must
    degrade to a
    safe no-op; `setCurrentEditing` additionally returns a 300 ms interval,
    so the
    test drives it under `vi.useFakeTimers()` and asserts
    `removeCurrentEditing`
    clears it (real timers restored in a `finally`).
    
    Two behaviours are asserted as the code actually behaves rather than as
    the issue
    describes them, and are commented in the spec:
    
    - `setZoomProperty` does **not** clamp — `isZoomRatioMin/Max` only
    *report* where
    the ratio sits relative to `ZOOM_MINIMUM` / `ZOOM_MAXIMUM`; clamping is
    the
      caller's job.
    - the port streams emit **unconditionally**, so single-select's "clear
    the
    previous ports first" step surfaces as an extra empty batch on the
    unhighlight
      stream.
    
    Out of scope per the issue (they need a real `dia.Paper` / geometry):
    `attachMainJointPaper` / `getMainJointPaper`, `autoLayoutJoint`,
    `getElementPosition` / `setElementPosition` / `setAbsolutePosition`,
    `restorePaperOffset`.
    
    ### Any related issues, documentation, discussions?
    
    Closes #6825
    
    ### How was this PR tested?
    
    Extended unit tests, run locally in `frontend/` (all green; the failure
    path was
    verified by breaking an assertion to confirm the suite goes red):
    
    ```
    ng test --watch=false --include 
src/app/workspace/service/workflow-graph/model/joint-graph-wrapper.spec.ts
    # Test Files 1 passed (1) | Tests 47 passed (47)
    prettier --write <spec>   # clean
    eslint  <spec>            # clean
    ```
    
    ### Was this PR authored or co-authored using generative AI tooling?
    
    Generated-by: Claude Code (Opus 4.8 [1M context])
    
    ---------
    
    Co-authored-by: Xinyuan Lin <[email protected]>
---
 .../model/joint-graph-wrapper.spec.ts              | 321 +++++++++++++++++++++
 1 file changed, 321 insertions(+)

diff --git 
a/frontend/src/app/workspace/service/workflow-graph/model/joint-graph-wrapper.spec.ts
 
b/frontend/src/app/workspace/service/workflow-graph/model/joint-graph-wrapper.spec.ts
index c212722314..c4bbd8b4f3 100644
--- 
a/frontend/src/app/workspace/service/workflow-graph/model/joint-graph-wrapper.spec.ts
+++ 
b/frontend/src/app/workspace/service/workflow-graph/model/joint-graph-wrapper.spec.ts
@@ -25,6 +25,7 @@ import { JointGraphWrapper } from "./joint-graph-wrapper";
 import { TestBed } from "@angular/core/testing";
 import { marbles } from "rxjs-marbles";
 import {
+  mockCommentBox,
   mockPoint,
   mockResultPredicate,
   mockScanPredicate,
@@ -33,6 +34,7 @@ import {
   mockSentimentPredicate,
   mockSentimentResultLink,
 } from "./mock-workflow-data";
+import { Coeditor, Role } from "../../../../common/type/user";
 import * as joint from "jointjs";
 import { StubOperatorMetadataService } from 
"../../operator-metadata/stub-operator-metadata.service";
 import { WorkflowUtilService } from "../util/workflow-util.service";
@@ -818,4 +820,323 @@ describe("JointGraphWrapperService", () => {
       expect(emitted).toEqual([false, true, false]);
     });
   });
+
+  describe("highlighting links, comment boxes and ports", () => {
+    // highlightElement() throws unless the cell is actually in the graph, so 
seed
+    // the cells first. Ports are tracked purely in the wrapper and need no 
cell.
+    const addOperators = (): void => {
+      
jointGraph.addCell(jointUIService.getJointOperatorElement(mockScanPredicate, 
mockPoint));
+      
jointGraph.addCell(jointUIService.getJointOperatorElement(mockResultPredicate, 
mockPoint));
+    };
+    const addLink = (): void => {
+      jointGraph.addCell(JointUIService.getJointLinkCell(mockScanResultLink));
+    };
+    const addCommentBox = (): void => {
+      jointGraph.addCell(jointUIService.getCommentElement(mockCommentBox));
+    };
+    const port = (operatorID: string, portID: string) => ({ operatorID, portID 
});
+
+    it("highlightLinks and unhighlightLinks track the current link ids and 
emit", () => {
+      addOperators();
+      addLink();
+      const highlighted: string[][] = [];
+      const unhighlighted: string[][] = [];
+      const onHighlight = 
jointGraphWrapper.getLinkHighlightStream().subscribe(ids => 
highlighted.push([...ids]));
+      const onUnhighlight = 
jointGraphWrapper.getLinkUnhighlightStream().subscribe(ids => 
unhighlighted.push([...ids]));
+
+      jointGraphWrapper.highlightLinks(mockScanResultLink.linkID);
+      
expect(jointGraphWrapper.getCurrentHighlightedLinkIDs()).toEqual([mockScanResultLink.linkID]);
+      expect(highlighted).toEqual([[mockScanResultLink.linkID]]);
+
+      // re-highlighting an already-highlighted link is a no-op (no second 
emission)
+      jointGraphWrapper.highlightLinks(mockScanResultLink.linkID);
+      expect(highlighted).toHaveLength(1);
+
+      jointGraphWrapper.unhighlightLinks(mockScanResultLink.linkID);
+      expect(jointGraphWrapper.getCurrentHighlightedLinkIDs()).toEqual([]);
+      expect(unhighlighted).toEqual([[mockScanResultLink.linkID]]);
+
+      onHighlight.unsubscribe();
+      onUnhighlight.unsubscribe();
+    });
+
+    it("highlightCommentBoxes and unhighlightCommentBoxes track the ids and 
emit", () => {
+      addCommentBox();
+      const highlighted: string[][] = [];
+      const unhighlighted: string[][] = [];
+      const onHighlight = jointGraphWrapper
+        .getJointCommentBoxHighlightStream()
+        .subscribe(ids => highlighted.push([...ids]));
+      const onUnhighlight = jointGraphWrapper
+        .getJointCommentBoxUnhighlightStream()
+        .subscribe(ids => unhighlighted.push([...ids]));
+
+      jointGraphWrapper.highlightCommentBoxes(mockCommentBox.commentBoxID);
+      
expect(jointGraphWrapper.getCurrentHighlightedCommentBoxIDs()).toEqual([mockCommentBox.commentBoxID]);
+      expect(highlighted).toEqual([[mockCommentBox.commentBoxID]]);
+
+      jointGraphWrapper.unhighlightCommentBoxes(mockCommentBox.commentBoxID);
+      
expect(jointGraphWrapper.getCurrentHighlightedCommentBoxIDs()).toEqual([]);
+      expect(unhighlighted).toEqual([[mockCommentBox.commentBoxID]]);
+
+      onHighlight.unsubscribe();
+      onUnhighlight.unsubscribe();
+    });
+
+    it("highlightPorts and unhighlightPorts track the current ports and emit", 
() => {
+      const highlighted: unknown[][] = [];
+      const unhighlighted: unknown[][] = [];
+      const onHighlight = 
jointGraphWrapper.getJointPortHighlightStream().subscribe(ids => 
highlighted.push([...ids]));
+      const onUnhighlight = jointGraphWrapper
+        .getJointPortUnhighlightStream()
+        .subscribe(ids => unhighlighted.push([...ids]));
+
+      const portA = port(mockScanPredicate.operatorID, "output-0");
+      jointGraphWrapper.highlightPorts(portA);
+      
expect(jointGraphWrapper.getCurrentHighlightedPortIDs()).toEqual([portA]);
+      expect(highlighted).toEqual([[portA]]);
+      // With multi-select off, highlightPorts clears the previous ports 
first. The
+      // port streams emit unconditionally (unlike the operator/link ones), so 
that
+      // pre-clear surfaces as an empty batch even though nothing was 
highlighted.
+      expect(unhighlighted).toEqual([[]]);
+
+      jointGraphWrapper.unhighlightPorts(portA);
+      expect(jointGraphWrapper.getCurrentHighlightedPortIDs()).toEqual([]);
+      expect(unhighlighted).toEqual([[], [portA]]);
+
+      onHighlight.unsubscribe();
+      onUnhighlight.unsubscribe();
+    });
+
+    it("single-select mode (the default) unhighlights the previous element", 
() => {
+      addOperators();
+      addLink();
+
+      jointGraphWrapper.highlightOperators(mockScanPredicate.operatorID);
+      
expect(jointGraphWrapper.getCurrentHighlightedOperatorIDs()).toEqual([mockScanPredicate.operatorID]);
+
+      // highlighting a link with multi-select off drops the operator highlight
+      jointGraphWrapper.highlightLinks(mockScanResultLink.linkID);
+      expect(jointGraphWrapper.getCurrentHighlightedOperatorIDs()).toEqual([]);
+      
expect(jointGraphWrapper.getCurrentHighlightedLinkIDs()).toEqual([mockScanResultLink.linkID]);
+    });
+
+    it("multi-select mode keeps previously highlighted elements", () => {
+      addOperators();
+      addLink();
+      jointGraphWrapper.setMultiSelectMode(true);
+
+      jointGraphWrapper.highlightOperators(mockScanPredicate.operatorID);
+      jointGraphWrapper.highlightLinks(mockScanResultLink.linkID);
+
+      
expect(jointGraphWrapper.getCurrentHighlightedOperatorIDs()).toEqual([mockScanPredicate.operatorID]);
+      
expect(jointGraphWrapper.getCurrentHighlightedLinkIDs()).toEqual([mockScanResultLink.linkID]);
+    });
+
+    it("getCurrentHighlights and getCurrentHighlightedIDs aggregate every 
family", () => {
+      addOperators();
+      addLink();
+      addCommentBox();
+      jointGraphWrapper.setMultiSelectMode(true);
+
+      const portA = port(mockScanPredicate.operatorID, "output-0");
+      jointGraphWrapper.highlightOperators(mockScanPredicate.operatorID);
+      jointGraphWrapper.highlightLinks(mockScanResultLink.linkID);
+      jointGraphWrapper.highlightCommentBoxes(mockCommentBox.commentBoxID);
+      jointGraphWrapper.highlightPorts(portA);
+
+      expect(jointGraphWrapper.getCurrentHighlights()).toEqual({
+        operators: [mockScanPredicate.operatorID],
+        links: [mockScanResultLink.linkID],
+        commentBoxes: [mockCommentBox.commentBoxID],
+        ports: [portA],
+      });
+      // getCurrentHighlightedIDs concatenates the id-based families only 
(ports excluded)
+      expect(jointGraphWrapper.getCurrentHighlightedIDs()).toEqual([
+        mockScanPredicate.operatorID,
+        mockScanResultLink.linkID,
+        mockCommentBox.commentBoxID,
+      ]);
+    });
+
+    it("unhighlightElements clears operators, links, comment boxes and ports 
together", () => {
+      addOperators();
+      addLink();
+      addCommentBox();
+      jointGraphWrapper.setMultiSelectMode(true);
+
+      const portA = port(mockScanPredicate.operatorID, "output-0");
+      jointGraphWrapper.highlightOperators(mockScanPredicate.operatorID);
+      jointGraphWrapper.highlightLinks(mockScanResultLink.linkID);
+      jointGraphWrapper.highlightCommentBoxes(mockCommentBox.commentBoxID);
+      jointGraphWrapper.highlightPorts(portA);
+
+      // copy the lists so the call does not iterate the arrays it is mutating
+      jointGraphWrapper.unhighlightElements({
+        operators: [...jointGraphWrapper.getCurrentHighlightedOperatorIDs()],
+        links: [...jointGraphWrapper.getCurrentHighlightedLinkIDs()],
+        commentBoxes: 
[...jointGraphWrapper.getCurrentHighlightedCommentBoxIDs()],
+        ports: [...jointGraphWrapper.getCurrentHighlightedPortIDs()],
+      });
+
+      expect(jointGraphWrapper.getCurrentHighlights()).toEqual({
+        operators: [],
+        links: [],
+        commentBoxes: [],
+        ports: [],
+      });
+    });
+
+    it("exposes the group highlight streams, which operator highlighting does 
not touch", () => {
+      addOperators();
+      const emitted: unknown[] = [];
+      const onHighlight = 
jointGraphWrapper.getJointGroupHighlightStream().subscribe(ids => 
emitted.push(ids));
+      const onUnhighlight = 
jointGraphWrapper.getJointGroupUnhighlightStream().subscribe(ids => 
emitted.push(ids));
+
+      jointGraphWrapper.highlightOperators(mockScanPredicate.operatorID);
+      jointGraphWrapper.unhighlightOperators(mockScanPredicate.operatorID);
+
+      expect(emitted).toEqual([]);
+      onHighlight.unsubscribe();
+      onUnhighlight.unsubscribe();
+    });
+  });
+
+  describe("workflow flags", () => {
+    it("setReloadingWorkflow round-trips through getReloadingWorkflow", () => {
+      expect(jointGraphWrapper.getReloadingWorkflow()).toBe(false);
+
+      jointGraphWrapper.setReloadingWorkflow(true);
+      expect(jointGraphWrapper.getReloadingWorkflow()).toBe(true);
+
+      jointGraphWrapper.setReloadingWorkflow(false);
+      expect(jointGraphWrapper.getReloadingWorkflow()).toBe(false);
+    });
+
+    it("setListenPositionChange round-trips through getListenPositionChange", 
() => {
+      expect(jointGraphWrapper.getListenPositionChange()).toBe(true);
+
+      jointGraphWrapper.setListenPositionChange(false);
+      expect(jointGraphWrapper.getListenPositionChange()).toBe(false);
+
+      jointGraphWrapper.setListenPositionChange(true);
+      expect(jointGraphWrapper.getListenPositionChange()).toBe(true);
+    });
+  });
+
+  describe("zoom ratio bounds", () => {
+    it("setZoomProperty updates the ratio and emits it on the zoom stream", () 
=> {
+      const emitted: number[] = [];
+      const subscription = 
jointGraphWrapper.getWorkflowEditorZoomStream().subscribe(ratio => 
emitted.push(ratio));
+
+      jointGraphWrapper.setZoomProperty(1.2);
+
+      expect(jointGraphWrapper.getZoomRatio()).toBe(1.2);
+      expect(emitted).toEqual([1.2]);
+      subscription.unsubscribe();
+    });
+
+    it("isZoomRatioMin and isZoomRatioMax report the configured bounds", () => 
{
+      // the wrapper itself does not clamp; it only reports where the ratio 
sits
+      jointGraphWrapper.setZoomProperty(JointGraphWrapper.ZOOM_MINIMUM);
+      expect(jointGraphWrapper.isZoomRatioMin()).toBe(true);
+      expect(jointGraphWrapper.isZoomRatioMax()).toBe(false);
+
+      jointGraphWrapper.setZoomProperty(JointGraphWrapper.ZOOM_MAXIMUM);
+      expect(jointGraphWrapper.isZoomRatioMax()).toBe(true);
+      expect(jointGraphWrapper.isZoomRatioMin()).toBe(false);
+
+      jointGraphWrapper.setZoomProperty(JointGraphWrapper.INIT_ZOOM_VALUE);
+      expect(jointGraphWrapper.isZoomRatioMin()).toBe(false);
+      expect(jointGraphWrapper.isZoomRatioMax()).toBe(false);
+    });
+
+    it("restoreDefaultZoomAndOffset resets the ratio and signals a 
paper-offset restore", () => {
+      const restores: number[] = [];
+      const subscription = 
jointGraphWrapper.getRestorePaperOffsetStream().subscribe(() => 
restores.push(1));
+      jointGraphWrapper.setZoomProperty(1.25);
+
+      jointGraphWrapper.restoreDefaultZoomAndOffset();
+
+      
expect(jointGraphWrapper.getZoomRatio()).toBe(JointGraphWrapper.INIT_ZOOM_VALUE);
+      expect(restores).toHaveLength(1);
+      subscription.unsubscribe();
+    });
+  });
+
+  describe("cell layer, breakpoints and position changes", () => {
+    it("getCellLayer returns the cell's z index and throws for an unknown 
cell", () => {
+      
jointGraph.addCell(jointUIService.getJointOperatorElement(mockScanPredicate, 
mockPoint));
+
+      
expect(jointGraphWrapper.getCellLayer(mockScanPredicate.operatorID)).toBeGreaterThanOrEqual(0);
+      expect(() => 
jointGraphWrapper.getCellLayer("no-such-cell")).toThrowError(
+        "cell with ID no-such-cell doesn't exist"
+      );
+    });
+
+    it("getLinkIDsWithBreakpoint starts empty", () => {
+      expect(jointGraphWrapper.getLinkIDsWithBreakpoint()).toEqual([]);
+    });
+
+    it("getElementPositionChangeEvent reports the old and new position of a 
moved element", () => {
+      
jointGraph.addCell(jointUIService.getJointOperatorElement(mockScanPredicate, 
mockPoint));
+
+      const moves: { elementID: string; newPosition: { x: number; y: number } 
}[] = [];
+      const subscription = jointGraphWrapper
+        .getElementPositionChangeEvent()
+        .subscribe(event => moves.push({ elementID: event.elementID, 
newPosition: event.newPosition }));
+
+      (jointGraph.getCell(mockScanPredicate.operatorID) as 
joint.dia.Element).position(100, 200);
+
+      expect(moves).toEqual([{ elementID: mockScanPredicate.operatorID, 
newPosition: { x: 100, y: 200 } }]);
+      subscription.unsubscribe();
+    });
+  });
+
+  describe("coeditor presence without an attached paper", () => {
+    // Every coeditor method reaches the canvas through 
`getMainJointPaper()?.`,
+    // so with no paper attached they must degrade to a safe no-op.
+    const coeditor: Coeditor = {
+      clientId: "client-1",
+      uid: 1,
+      name: "Alice",
+      email: "[email protected]",
+      role: Role.REGULAR,
+      comment: "",
+      joiningReason: "",
+      color: "#ff0000",
+    };
+
+    it("add/deleteCoeditorOperatorHighlight are no-ops when no paper is 
attached", () => {
+      expect(() =>
+        jointGraphWrapper.addCoeditorOperatorHighlight(coeditor, 
mockScanPredicate.operatorID)
+      ).not.toThrow();
+      expect(() =>
+        jointGraphWrapper.deleteCoeditorOperatorHighlight(coeditor, 
mockScanPredicate.operatorID)
+      ).not.toThrow();
+    });
+
+    it("setCurrentEditing returns an interval that removeCurrentEditing 
clears", () => {
+      // Deliberately NOT using fake timers: zone.js patches 
setInterval/clearInterval
+      // too, and driving vitest's fake clock through that patched pair behaves
+      // differently across Node versions. This body is fully synchronous, so 
the
+      // 300ms animation callback can never be reached before it is cleared.
+      const clearIntervalSpy = vi.spyOn(globalThis, "clearInterval");
+      const intervalId = jointGraphWrapper.setCurrentEditing(coeditor, 
mockScanPredicate.operatorID);
+      try {
+        expect(intervalId).toBeDefined();
+
+        jointGraphWrapper.removeCurrentEditing(coeditor, 
mockScanPredicate.operatorID, intervalId);
+        expect(clearIntervalSpy).toHaveBeenCalledWith(intervalId);
+      } finally {
+        clearInterval(intervalId);
+        clearIntervalSpy.mockRestore();
+      }
+    });
+
+    it("set/removePropertyChanged are no-ops when no paper is attached", () => 
{
+      expect(() => jointGraphWrapper.setPropertyChanged(coeditor, 
mockScanPredicate.operatorID)).not.toThrow();
+      expect(() => jointGraphWrapper.removePropertyChanged(coeditor, 
mockScanPredicate.operatorID)).not.toThrow();
+    });
+  });
 });

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