Added CIT test for the fail processor. (#95261)

* Added CIT test for the fail processor.

* Fixed linter issues.

* Used new functions and helpers.

* Added common test to ensure that a processor type was selected before saving. Fixed some titles and nits from the PR feedback.

* Removed unused var.

* Merged in master and updated tests to remove repeat code.

x-pack/plugins/ingest_pipelines/public/application/components/pipeline_editor/__jest__/processors/common_processor_fields.test.tsx

@@ -37,6 +37,21 @@ describe('Processor: Common Fields For All Processors', () => {
     testBed.component.update();
   });
 
+  test('prevents form submission if required type field is not provided', async () => {
+    const {
+      actions: { addProcessor, saveNewProcessor },
+      form,
+    } = testBed;
+
+    // Open flyout to add new processor
+    addProcessor();
+    // Click submit button without entering any fields
+    await saveNewProcessor();
+
+    // Expect form error as a processor type is required
+    expect(form.getErrorsMessages()).toEqual(['A type is required.']);
+  });
+
   test('saves with common fields set', async () => {
     const {
       actions: { addProcessor, saveNewProcessor, addProcessorType },

x-pack/plugins/ingest_pipelines/public/application/components/pipeline_editor/__jest__/processors/fail.test.tsx

@@ -0,0 +1,77 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+import { act } from 'react-dom/test-utils';
+import { setup, SetupResult, getProcessorValue } from './processor.helpers';
+
+const FAIL_TYPE = 'fail';
+describe('Processor: Fail', () => {
+  let onUpdate: jest.Mock;
+  let testBed: SetupResult;
+
+  beforeAll(() => {
+    jest.useFakeTimers();
+  });
+
+  afterAll(() => {
+    jest.useRealTimers();
+  });
+
+  beforeEach(async () => {
+    onUpdate = jest.fn();
+
+    await act(async () => {
+      testBed = await setup({
+        value: {
+          processors: [],
+        },
+        onFlyoutOpen: jest.fn(),
+        onUpdate,
+      });
+    });
+    testBed.component.update();
+
+    const {
+      actions: { addProcessor, addProcessorType },
+    } = testBed;
+    // Open the processor flyout
+    addProcessor();
+
+    // Add type (the other fields are not visible until a type is selected)
+    await addProcessorType(FAIL_TYPE);
+  });
+
+  test('prevents form submission if required message field is not provided', async () => {
+    const {
+      actions: { saveNewProcessor },
+      form,
+    } = testBed;
+
+    // Click submit button with only the type defined
+    await saveNewProcessor();
+
+    // Expect form error as "field" is required parameter
+    expect(form.getErrorsMessages()).toEqual(['A message is required.']);
+  });
+
+  test('saves with required parameter value', async () => {
+    const {
+      actions: { saveNewProcessor },
+      form,
+    } = testBed;
+
+    // Add "message" value (required)
+    form.setInputValue('messageField.input', 'Test Error Message');
+    // Save the field
+    await saveNewProcessor();
+
+    const processors = getProcessorValue(onUpdate, FAIL_TYPE);
+    expect(processors[0].fail).toEqual({
+      message: 'Test Error Message',
+    });
+  });
+});

x-pack/plugins/ingest_pipelines/public/application/components/pipeline_editor/__jest__/processors/processor.helpers.tsx

@@ -140,6 +140,7 @@ type TestSubject =
   | 'appendValueField.input'
   | 'processorTypeSelector.input'
   | 'fieldNameField.input'
+  | 'messageField.input'
   | 'mockCodeEditor'
   | 'tagField.input'
   | 'ignoreMissingSwitch.input'

x-pack/plugins/ingest_pipelines/public/application/components/pipeline_editor/components/processor_form/processors/fail.tsx

@@ -37,5 +37,12 @@ const fieldsConfig: FieldsConfig = {
 };
 
 export const Fail: FunctionComponent = () => {
-  return <UseField component={Field} config={fieldsConfig.message} path="fields.message" />;
+  return (
+    <UseField
+      data-test-subj="messageField"
+      component={Field}
+      config={fieldsConfig.message}
+      path="fields.message"
+    />
+  );
 };