chore(schematics): valid migration for error pipe module (#10096)

projects/cdk/schematics/ng-update/v4/steps/constants/identifiers-to-replace.ts

@@ -354,7 +354,10 @@ export const IDENTIFIERS_TO_REPLACE: ReplacementIdentifierMulti[] = [
     },
     {
         from: {name: 'TuiFieldErrorPipeModule', moduleSpecifier: '@taiga-ui/kit'},
-        to: {name: 'TuiFieldErrorPipe', moduleSpecifier: '@taiga-ui/kit'},
+        to: [
+            {name: 'TuiFieldErrorPipe', moduleSpecifier: '@taiga-ui/kit'},
+            {name: 'TuiFieldErrorContentPipe', moduleSpecifier: '@taiga-ui/kit'},
+        ],
     },
     {
         from: {name: 'TuiThumbnailCardModule', moduleSpecifier: '@taiga-ui/experimental'},

projects/cdk/schematics/ng-update/v4/tests/schematic-migrate-error.spec.ts

@@ -0,0 +1,104 @@
+import {join} from 'node:path';
+
+import {HostTree} from '@angular-devkit/schematics';
+import {SchematicTestRunner, UnitTestTree} from '@angular-devkit/schematics/testing';
+import type {TuiSchema} from '@taiga-ui/cdk/schematics/ng-add/schema';
+import {
+    createProject,
+    createSourceFile,
+    resetActiveProject,
+    saveActiveProject,
+    setActiveProject,
+} from 'ng-morph';
+
+import {createAngularJson} from '../../../utils/create-angular-json';
+
+const collectionPath = join(__dirname, '../../../migration.json');
+
+const COMPONENT_BEFORE = `
+import { TuiInputModule, TuiFieldErrorPipeModule } from "@taiga-ui/kit";
+
+@Component({
+    standalone: true,
+    templateUrl: './test.template.html',
+    imports: [ TuiInputModule, TuiFieldErrorPipeModule]
+})
+export class Test {
+}`;
+
+const COMPONENT_AFTER = `import { TuiInputModule } from "@taiga-ui/legacy";
+
+import { TuiFieldErrorPipe, TuiFieldErrorContentPipe } from "@taiga-ui/kit";
+
+@Component({
+    standalone: true,
+    templateUrl: './test.template.html',
+    imports: [ TuiInputModule, TuiFieldErrorPipe, TuiFieldErrorContentPipe]
+})
+export class Test {
+}`;
+
+const TEMPLATE_BEFORE = `
+ <tui-input
+    id="hint-host"
+    tuiHintDirection="top"
+    class="host"
+    [formControl]="control"
+    [tuiHint]="[] | tuiFieldErrorContent"
+>
+    Tooltip host
+</tui-input>
+`;
+
+const TEMPLATE_AFTER = `
+ <tui-input
+    id="hint-host"
+    tuiHintDirection="top"
+    class="host"
+    [formControl]="control"
+    [tuiHint]="[] | tuiFieldErrorContent"
+>
+    Tooltip host
+</tui-input>
+`;
+
+describe('ng-update', () => {
+    let host: UnitTestTree;
+    let runner: SchematicTestRunner;
+
+    beforeEach(() => {
+        host = new UnitTestTree(new HostTree());
+        runner = new SchematicTestRunner('schematics', collectionPath);
+
+        setActiveProject(createProject(host));
+
+        createMainFiles();
+
+        saveActiveProject();
+    });
+
+    it('should migrate error pipe in template', async () => {
+        const tree = await runner.runSchematic(
+            'updateToV4',
+            {'skip-logs': process.env['TUI_CI'] === 'true'} as Partial<TuiSchema>,
+            host,
+        );
+
+        expect(tree.readContent('test/app/test.template.html')).toEqual(TEMPLATE_AFTER);
+        expect(tree.readContent('test/app/test.component.ts')).toEqual(COMPONENT_AFTER);
+    });
+
+    afterEach(() => {
+        resetActiveProject();
+    });
+});
+
+function createMainFiles(): void {
+    createSourceFile('test/app/test.component.ts', COMPONENT_BEFORE);
+    createSourceFile('test/app/test.template.html', TEMPLATE_BEFORE);
+    createAngularJson();
+    createSourceFile(
+        'package.json',
+        '{"dependencies": {"@angular/core": "~13.0.0", "@taiga-ui/addon-commerce": "~3.42.0"}}',
+    );
+}