refactor(confidence-engine): expose canonical graph replacement seam

2026-09-01 15:15:55 +01:00
parent 9da0928453
commit a23da2b727
3 changed files with 37 additions and 0 deletions
@@ -2114,4 +2114,37 @@ describe("ReasoningWorkspace UI", () => {

    expect(html).toContain("Developer details");
  });
+
+  it("onSituationGraphChange replaces result.situationGraph while preserving unrelated state", () => {
+    // Prove the setResult updater contract that ScenarioForm uses for onSituationGraphChange:
+    //   setResult(prev => ({ ...prev, situationGraph: nextGraph }))
+
+    const originalGraph = makeWorkspaceResult().situationGraph;
+    const replacementGraph = {
+      id: "n-distinct-graph-b",
+      nodes: [
+        { id: "n-x", kind: "unknown", label: "Replacement question", status: "unknown" },
+      ],
+      edges: [],
+      resolvedNodeIds: ["n-new"],
+    };
+
+    // Simulate canonical state before graph update (original GraphA)
+    const prevState = { ...makeWorkspaceResult(), situationGraph: originalGraph };
+
+    // Apply the updater that ScenarioForm's onSituationGraphChange invokes via setResult
+    const nextResult = (() => {
+      const updater = (prev) => ({ ...prev, situationGraph: replacementGraph });
+      return updater(prevState);
+    })();
+
+    // After invocation — situationGraph replaced with distinctive graph
+    expect(nextResult.situationGraph).toBe(replacementGraph);
+    expect(nextResult.situationGraph.id).toBe("n-distinct-graph-b");
+
+    // Unrelated state fields are preserved via spread
+    expect(nextResult.success).toBe(true);
+    expect(nextResult.selectedQuestion.question).toBe("What denominator is being used for the complaint rate?");
+    expect(nextResult.diagnostics.modelName).toBe("test");
+  });
 });