Completely fix code mirror text navigating for tests

e2e/playwright/code-pane-and-errors.spec.ts

@@ -52,6 +52,7 @@ test.describe('Code pane and errors', () => {
   test('Opening and closing the code pane will consistently show error diagnostics', async ({
     page,
     homePage,
+    editor,
   }) => {
     const u = await getUtils(page)
 
@@ -77,8 +78,9 @@ test.describe('Code pane and errors', () => {
     await expect(codePaneButtonHolder).not.toContainText('notification')
 
     // Delete a character to break the KCL
-    await u.openKclCodePanel()
-    await page.getByText('thickness, bracketLeg1Sketch)').click()
+    await editor.openPane()
+    await editor.scrollToText('thickness, bracketLeg1Sketch)')
+    await page.getByText('extrude(thickness, bracketLeg1Sketch)').click()
     await page.keyboard.press('Backspace')
 
     // Ensure that a badge appears on the button
@@ -102,7 +104,10 @@ test.describe('Code pane and errors', () => {
     await expect(page.locator('.cm-lint-marker-error')).not.toBeVisible()
 
     // Open the code pane
-    await u.openKclCodePanel()
+    await editor.openPane()
+
+    // Go to our problematic code again (missing closing paren!)
+    await editor.scrollToText('extrude(thickness, bracketLeg1Sketch')
 
     // Ensure that a badge appears on the button
     await expect(codePaneButtonHolder).toContainText('notification')

e2e/playwright/fixtures/editorFixture.ts

@@ -147,4 +147,16 @@ export class EditorFixture {
   openPane() {
     return openPane(this.page, this.paneButtonTestId)
   }
+  scrollToText(text: string) {
+    return this.page.evaluate((scrollToText: string) => {
+      // editorManager is available on the window object.
+      let index = editorManager._editorView.docView.view.state.doc.toString().indexOf(scrollToText)
+      editorManager._editorView.dispatch({
+        selection: { 
+          anchor: index
+        },
+        scrollIntoView: true,
+      })
+    }, text)
+  }
 }

e2e/playwright/test-utils.ts

@@ -151,6 +151,17 @@ export async function closePane(page: Page, testId: string) {
 
 async function openKclCodePanel(page: Page) {
   await openPane(page, 'code-pane-button')
+
+  // Code Mirror lazy loads text! Wowza! Let's force-load the text for tests.
+  await page.evaluate(() => {
+    // editorManager is available on the window object.
+    editorManager._editorView.dispatch({
+      selection: { 
+        anchor: editorManager._editorView.docView.length
+      },
+      scrollIntoView: true,
+    })
+  })
 }
 
 async function closeKclCodePanel(page: Page) {