test(e2e): repair investigation textarea selectors

tests/e2e/happy-path.spec.js

@@ -64,7 +64,7 @@ test("initial page renders idle state with textarea and Analyse button", async (
 
   // Idle: textarea placeholder visible
   await expect(page.getByRole("textbox")).toBeVisible();
-  await expect(page.getByRole("textbox").first()).toHaveAttribute("placeholder", /Describe/);
+  await expect(page.locator('[data-testid="scenario-textarea"]')).toBeVisible();
 
   // Analyse button present (disabled since no text)
   const analyseBtn = page.getByRole("button", { name: "Analyse" });
@@ -85,7 +85,7 @@ test("selecting a scenario from dropdown auto-fills central statement and enable
   });
 
   // Type the scenario text directly and verify Analyse is enabled
-  const textarea = page.locator("textarea[placeholder*=Describe]");
+  const textarea = page.locator('[data-testid="scenario-textarea"]');
   await textarea.fill(SCENARIO_LOOKUP["Happy path — complete investigation"].centralStatement);
 
   // Analyse button should be enabled (scenario has content)
@@ -116,7 +116,7 @@ test("multi-turn investigation: start → answer → start again with new questi
   });
 
   // Type scenario text directly
-  const textarea = page.locator("textarea[placeholder*=Describe]");
+  const textarea = page.locator('[data-testid="scenario-textarea"]');
   await textarea.fill(MULTI_TURN.centralStatement);
 
   // Click Analyse
@@ -131,7 +131,7 @@ test("multi-turn investigation: start → answer → start again with new questi
   await expect(workspace).toBeVisible();
 
   // ── Phase 2: Submit first answer ──
-  const answerTextarea = page.locator('textarea[placeholder*=Answer]');
+  const answerTextarea = page.locator('[data-testid="response-textarea"]');
   if (await answerTextarea.isVisible({ timeout: 3000 })) {
     await answerTextarea.fill(MULTI_TURN.answerSequence[0].text);
     await page.getByRole("button", { name: "Update situation" }).click();
@@ -146,7 +146,7 @@ test("multi-turn investigation: start → answer → start again with new questi
   }
 
   // ── Phase 3: Submit second answer ──
-  const answerTextarea2 = page.locator('textarea[placeholder*=Answer]');
+  const answerTextarea2 = page.locator('[data-testid="response-textarea"]');
   if (await answerTextarea2.isVisible({ timeout: 3000 })) {
     await answerTextarea2.fill(MULTI_TURN.answerSequence[1].text);
     await page.getByRole("button", { name: "Update situation" }).click();
@@ -174,7 +174,7 @@ test("genuine completion: all unknowns resolved → CompletionCard visible", asy
   });
 
   // Type and submit
-  const textarea = page.locator("textarea[placeholder*=Describe]");
+  const textarea = page.locator('[data-testid="scenario-textarea"]');
   await textarea.fill(COMPLETE.centralStatement);
   await page.getByRole("button", { name: "Analyse" }).click();
 
@@ -183,7 +183,7 @@ test("genuine completion: all unknowns resolved → CompletionCard visible", asy
   await waitForWorkspaceReady(page);
 
   // If there's a question, submit it (complete scenario's turn 0 should eventually give terminal)
-  const answerTextarea = page.locator('textarea[placeholder*=Answer]');
+  const answerTextarea = page.locator('[data-testid="response-textarea"]');
   if (await answerTextarea.isVisible({ timeout: 3000 })) {
     await answerTextarea.fill(COMPLETE.answerSequence[0].text);
     await page.getByRole("button", { name: "Update situation" }).click();
@@ -220,7 +220,7 @@ test("evidence-limit: unknowns remain but no next question → EvidenceLimitCard
     window.__MOCK_SCENARIO = "evidence-limit";
   });
 
-  const textarea = page.locator("textarea[placeholder*=Describe]");
+  const textarea = page.locator('[data-testid="scenario-textarea"]');
   await textarea.fill(INVESTIGATION_SCENARIOS[2].centralStatement);
   await page.getByRole("button", { name: "Analyse" }).click();
 
@@ -260,7 +260,7 @@ test("reset clears all state and returns to idle", async ({ page }) => {
   });
 
   // Start an investigation
-  const textarea = page.locator("textarea[placeholder*=Describe]");
+  const textarea = page.locator('[data-testid="scenario-textarea"]');
   await textarea.fill(COMPLETE.centralStatement);
   await page.getByRole("button", { name: "Analyse" }).click();
 
@@ -290,7 +290,7 @@ test("loading overlay appears on submit and disappears after response", async ({
     window.__MOCK_SCENARIO = "";
   });
 
-  const textarea = page.locator("textarea[placeholder*=Describe]");
+  const textarea = page.locator('[data-testid="scenario-textarea"]');
   await textarea.fill(INVESTIGATION_SCENARIOS[0].centralStatement);
 
   // Verify workspace is NOT visible before submitting
@@ -319,7 +319,7 @@ test("update submission replaces response panel with loading card, preserves con
   });
 
   // Start investigation
-  const textarea = page.locator("textarea[placeholder*=Describe]");
+  const textarea = page.locator('[data-testid="scenario-textarea"]');
   await textarea.fill(INVESTIGATION_SCENARIOS[0].centralStatement);
   await page.getByRole("button", { name: "Analyse" }).click();
 
@@ -330,7 +330,7 @@ test("update submission replaces response panel with loading card, preserves con
   await expect(workspace).toBeVisible();
 
   // Submit an answer to trigger update loading
-  const answerTextarea = page.locator('textarea[placeholder*=Answer]');
+  const answerTextarea = page.locator('[data-testid="response-textarea"]');
   if (await answerTextarea.isVisible({ timeout: 3000 })) {
     // Current investigation visible before click
     await expect(page.getByRole("heading", { name: "Current investigation" })).toBeVisible();
@@ -345,7 +345,7 @@ test("update submission replaces response panel with loading card, preserves con
     await expect(page.getByRole("heading", { name: "Current investigation" })).toBeVisible({ timeout: 5_000 });
 
     // Response textarea hidden — replaced by loading overlay
-    const rwTextarea = page.locator('#rw-answer');
+    const rwTextarea = page.locator('[data-testid="response-textarea"]');
     await expect(rwTextarea).not.toBeVisible({ timeout: 3_000 });
 
     // Loading overlay visible in response panel position
@@ -380,7 +380,7 @@ test("investigation map preview: appears after start, topics evolve across mocke
     window.__MOCK_SCENARIO = "complete";
   });
 
-  const textarea = page.locator("textarea[placeholder*=Describe]");
+  const textarea = page.locator('[data-testid="scenario-textarea"]');
   await textarea.fill(INVESTIGATION_SCENARIOS[0].centralStatement);
   await page.getByRole("button", { name: "Analyse" }).click();
 
@@ -405,7 +405,7 @@ test("investigation map preview: appears after start, topics evolve across mocke
   await expect(byStatus("current")).toHaveCount(1);
 
   // Submit first answer → turn 1: one more established, next topic becomes current
-  const answerTextarea = page.locator('textarea[placeholder*=Answer]');
+  const answerTextarea = page.locator('[data-testid="response-textarea"]');
   if (await answerTextarea.isVisible({ timeout: 3000 })) {
     await answerTextarea.fill("The figures are comparable.");
     await page.getByRole("button", { name: "Update situation" }).click();
@@ -421,7 +421,7 @@ test("investigation map preview: appears after start, topics evolve across mocke
     await expect(byStatus("current")).toHaveCount(1);
 
     // Submit second answer → turn 2
-    const answerTextarea2 = page.locator('textarea[placeholder*=Answer]');
+    const answerTextarea2 = page.locator('[data-testid="response-textarea"]');
     if (await answerTextarea2.isVisible({ timeout: 3000 })) {
       await answerTextarea2.fill("Complaint rate fell from 2.0 to 1.9 per 100 units.");
       await page.getByRole("button", { name: "Update situation" }).click();

tests/e2e/long-investigation.spec.js

@@ -59,7 +59,7 @@ async function waitForWorkspaceReady(page, options = {}) {
  * Returns { success, hasError } for test assertions.
  */
 async function submitAnswer(page, text) {
-  const textarea = page.locator('textarea[placeholder*=Answer]');
+  const textarea = page.locator('[data-testid="response-textarea"]');
   if (!(await textarea.isVisible({ timeout: 3000 }).catch(() => false))) {
     return { success: false, hasError: false };
   }
@@ -90,7 +90,7 @@ test("long investigation — European market entry with 4 answer turns", async (
     window.__MOCK_SCENARIO = "complete";
   });
 
-  const textarea = page.locator("textarea[placeholder*=Describe]");
+  const textarea = page.locator('[data-testid="scenario-textarea"]');
   await textarea.fill(LONG_INVESTIGATION.centralStatement);
   await page.getByRole("button", { name: "Analyse" }).click();
 
@@ -133,7 +133,7 @@ test("contradiction fixture — opposing recommendations in investigation card",
     window.__MOCK_SCENARIO = ""; // use default
   });
 
-  const textarea = page.locator("textarea[placeholder*=Describe]");
+  const textarea = page.locator('[data-testid="scenario-textarea"]');
   await textarea.fill(CONTRADICTION.centralStatement);
   await page.getByRole("button", { name: "Analyse" }).click();
 
@@ -173,7 +173,7 @@ test("diagnosis scenario — churn investigation renders correctly", async ({ pa
     window.__MOCK_SCENARIO = "";
   });
 
-  const textarea = page.locator("textarea[placeholder*=Describe]");
+  const textarea = page.locator('[data-testid="scenario-textarea"]');
   await textarea.fill(DIAGNOSIS.centralStatement);
   await page.getByRole("button", { name: "Analyse" }).click();
 
@@ -204,7 +204,7 @@ test("comparison scenario — product rating nodes render with edges", async ({
     window.__MOCK_SCENARIO = "";
   });
 
-  const textarea = page.locator("textarea[placeholder*=Describe]");
+  const textarea = page.locator('[data-testid="scenario-textarea"]');
   await textarea.fill(COMPARISON.centralStatement);
   await page.getByRole("button", { name: "Analyse" }).click();
 
@@ -218,7 +218,7 @@ test("comparison scenario — product rating nodes render with edges", async ({
 
   if (result.success) {
     // Second turn's answer textarea should appear
-    const answerTextarea = page.locator('textarea[placeholder*=Answer]');
+    const answerTextarea = page.locator('[data-testid="response-textarea"]');
     expect(await answerTextarea.isVisible()).toBe(true);
 
     // Submit second answer
@@ -240,7 +240,7 @@ test("prioritisation scenario — team relocation yields ranked options", async
     window.__MOCK_SCENARIO = "";
   });
 
-  const textarea = page.locator("textarea[placeholder*=Describe]");
+  const textarea = page.locator('[data-testid="scenario-textarea"]');
   await textarea.fill(PRIORITISATION.centralStatement);
   await page.getByRole("button", { name: "Analyse" }).click();
 
@@ -270,7 +270,7 @@ test("rapid successive updates maintain correct loading-state cycling", async ({
     window.__MOCK_SCENARIO = "";
   });
 
-  const textarea = page.locator("textarea[placeholder*=Describe]");
+  const textarea = page.locator('[data-testid="scenario-textarea"]');
   await textarea.fill(LONG_INVESTIGATION.centralStatement); // use long scenario central statement
   await page.getByRole("button", { name: "Analyse" }).click();
 
@@ -302,19 +302,19 @@ test("answer textarea placeholder updates between turns", async ({ page }) => {
     window.__MOCK_SCENARIO = "";
   });
 
-  const textarea = page.locator("textarea[placeholder*=Describe]");
+  const textarea = page.locator('[data-testid="scenario-textarea"]');
   await textarea.fill(INVESTIGATION_SCENARIOS[0].centralStatement);
   await page.getByRole("button", { name: "Analyse" }).click();
 
   // Initial workspace should have an answer textarea with a question-related placeholder
-  const answerTextarea = page.locator('textarea[placeholder*=Answer]');
+  const answerTextarea = page.locator('[data-testid="response-textarea"]');
   await expect(answerTextarea).toBeVisible({ timeout: 10_000 });
 
   // Submit first answer
   await submitAnswer(page, INVESTIGATION_SCENARIOS[0].answerSequence[0]?.text || "");
 
   // After update, new question textarea should be present with potentially different placeholder
-  const updatedTextarea = page.locator('textarea[placeholder*=Answer]');
+  const updatedTextarea = page.locator('[data-testid="response-textarea"]');
   await expect(updatedTextarea).toBeVisible();
 
   // The workspace card should still display the current investigation context
@@ -334,7 +334,7 @@ test("terminal state renders without answer textarea", async ({ page }) => {
     window.__MOCK_SCENARIO = "complete";
   });
 
-  const textarea = page.locator("textarea[placeholder*=Describe]");
+  const textarea = page.locator('[data-testid="scenario-textarea"]');
   await textarea.fill(SCENARIO_LOOKUP["Happy path — complete investigation"].centralStatement);
   await page.getByRole("button", { name: "Analyse" }).click();
 
@@ -344,7 +344,7 @@ test("terminal state renders without answer textarea", async ({ page }) => {
   await expect(page.locator('[data-testid="reasoning-workspace"]')).toBeVisible();
 
   // If there's a question (turn 0 gives a question), submit it to reach terminal
-  const answerTextarea = page.locator('textarea[placeholder*=Answer]');
+  const answerTextarea = page.locator('[data-testid="response-textarea"]');
   if (await answerTextarea.isVisible({ timeout: 3000 })) {
     await answerTextarea.fill(SCENARIO_LOOKUP["Happy path — complete investigation"].answerSequence[0]?.text || "");
     await page.getByRole("button", { name: "Update situation" }).click();

tests/e2e/recovery-states.spec.js

@@ -44,7 +44,7 @@ test("provider error: analyse returns failure → error panel visible alongside
     window.__MOCK_SCENARIO = "error";
   });
 
-  const textarea = page.locator("textarea[placeholder*=Describe]");
+  const textarea = page.locator('[data-testid="scenario-textarea"]');
   await textarea.fill(PROVIDER_ERROR.centralStatement);
   await page.getByRole("button", { name: "Analyse" }).click();
 
@@ -73,7 +73,7 @@ test("provider error during update turn: error panel appears after answer submit
     window.__MOCK_SCENARIO = ""; // normal default for start
   });
 
-  const textarea = page.locator("textarea[placeholder*=Describe]");
+  const textarea = page.locator('[data-testid="scenario-textarea"]');
   await textarea.fill(INVESTIGATION_SCENARIOS[0].centralStatement);
   await page.getByRole("button", { name: "Analyse" }).click();
 
@@ -86,7 +86,7 @@ test("provider error during update turn: error panel appears after answer submit
   });
 
   // Submit an answer to trigger the update call (which will now get error)
-  const answerTextarea = page.locator('textarea[placeholder*=Answer]');
+  const answerTextarea = page.locator('[data-testid="response-textarea"]');
   if (await answerTextarea.isVisible({ timeout: 3000 })) {
     await answerTextarea.fill("Some answer that should fail");
     await page.getByRole("button", { name: "Update situation" }).click();
@@ -109,7 +109,7 @@ test("malformed response during start: error state visible, workspace still rend
     window.__MOCK_SCENARIO = "error";
   });
 
-  const textarea = page.locator("textarea[placeholder*=Describe]");
+  const textarea = page.locator('[data-testid="scenario-textarea"]');
   await textarea.fill(MALFORMED_RESPONSE.centralStatement);
   await page.getByRole("button", { name: "Analyse" }).click();
 
@@ -136,7 +136,7 @@ test("recovery state persists via sessionStorage after error response", async ({
     window.__MOCK_SCENARIO = "error";
   });
 
-  const textarea = page.locator("textarea[placeholder*=Describe]");
+  const textarea = page.locator('[data-testid="scenario-textarea"]');
   await textarea.fill(PROVIDER_ERROR.centralStatement);
   await page.getByRole("button", { name: "Analyse" }).click();
 
@@ -167,7 +167,7 @@ test("multiple successive errors maintain UI state without crash", async ({ page
     window.__MOCK_SCENARIO = "error";
   });
 
-  const textarea = page.locator("textarea[placeholder*=Describe]");
+  const textarea = page.locator('[data-testid="scenario-textarea"]');
   await textarea.fill(PROVIDER_ERROR.centralStatement);
 
   // First analyse call
@@ -177,7 +177,7 @@ test("multiple successive errors maintain UI state without crash", async ({ page
   await expect(page.locator('[data-testid="reasoning-workspace"]')).toBeVisible();
 
   // If there's an answer textarea, try another update (also errors)
-  const answerTextarea = page.locator('textarea[placeholder*=Answer]');
+  const answerTextarea = page.locator('[data-testid="response-textarea"]');
   if (await answerTextarea.isVisible({ timeout: 2000 })) {
     await answerTextarea.fill("Second attempt");
     await page.getByRole("button", { name: "Update situation" }).click();