test(e2e): grid editing, DML preview and filters

test/e2e/03_data_grid_and_mutations/e2e_dml_preview_and_commit_test.dart

@@ -0,0 +1,94 @@
+import 'package:flutter/services.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:querya_desktop/core/database/table_mutation_engine.dart';
+
+import '../../support/fake_table_data_delegate.dart';
+import '../../support/generic_table_view_harness.dart';
+import '../helpers/e2e_grid_interactions.dart';
+
+const _timeout = Timeout(Duration(seconds: 60));
+
+/// `pumpAndSettle` never returns while a save runs: the spinner animates.
+Future<void> _frames(WidgetTester tester) async {
+  await tester.pump();
+  await tester.pump(const Duration(milliseconds: 500));
+}
+
+void main() {
+  // dialect → (quoted table, quoted column)
+  const quoting = {
+    SqlDialect.postgres: ('"public"."users"', '"name"'),
+    SqlDialect.mysql: ('`public`.`users`', '`name`'),
+    SqlDialect.sqlite: ('"users"', '"name"'),
+  };
+
+  for (final entry in quoting.entries) {
+    final dialect = entry.key;
+    final (table, column) = entry.value;
+
+    testWidgets('${dialect.name}: UPDATE, INSERT and DELETE are previewed '
+        'and committed in one plan', timeout: _timeout, (tester) async {
+      final delegate = FakeTableDataDelegate();
+      final state = await pumpGenericTableView(
+        tester,
+        delegate,
+        dialect: dialect,
+      );
+      await E2eGrid.shortcut(tester, LogicalKeyboardKey.keyE, ctrl: true);
+      await _frames(tester);
+
+      await E2eGrid.doubleTapCell(tester, 'Alice');
+      await E2eGrid.typeAndCommit(tester, 'Alicia');
+      await _frames(tester);
+      await E2eGrid.tapCell(tester, 'Carol');
+      await tester.tap(find.text('Delete Row'));
+      await _frames(tester);
+      await tester.tap(find.text('Add Row'));
+      await _frames(tester);
+      E2eGrid.expectStaged(
+        state.stagingBuffer!,
+        modifiedCells: 1,
+        inserted: 1,
+        deleted: 1,
+      );
+
+      await E2eGrid.shortcut(tester, LogicalKeyboardKey.keyS, ctrl: true);
+      await _frames(tester);
+      expect(find.text('Confirm Data Changes'), findsOneWidget);
+      expect(find.text('TRANSACTION SCRIPT'), findsOneWidget);
+      expect(delegate.appliedPlans, isEmpty, reason: 'nothing before confirm');
+
+      await tester.tap(find.text('Apply Changes'));
+      await _frames(tester);
+      await tester.pump(const Duration(seconds: 6)); // toast timer
+
+      expect(delegate.appliedPlans, hasLength(1));
+      final sql = delegate.appliedPlans.single.statements.map((s) => s.sql);
+      expect(sql.where((s) => s.startsWith('UPDATE $table SET $column = ')),
+          hasLength(1));
+      expect(sql.where((s) => s.startsWith('INSERT INTO $table')), hasLength(1));
+      expect(sql.where((s) => s.startsWith('DELETE FROM $table')), hasLength(1));
+      expect(state.isDirty, isFalse);
+    });
+  }
+
+  testWidgets('Cancel in the preview keeps every pending edit',
+      timeout: _timeout, (tester) async {
+    final delegate = FakeTableDataDelegate();
+    final state = await pumpGenericTableView(tester, delegate);
+    await E2eGrid.shortcut(tester, LogicalKeyboardKey.keyE, ctrl: true);
+    await _frames(tester);
+    await E2eGrid.doubleTapCell(tester, 'Alice');
+    await E2eGrid.typeAndCommit(tester, 'Alicia');
+    await _frames(tester);
+
+    await E2eGrid.shortcut(tester, LogicalKeyboardKey.keyS, ctrl: true);
+    await _frames(tester);
+    await tester.tap(find.text('Cancel'));
+    await _frames(tester);
+    await tester.pump(const Duration(seconds: 6));
+
+    expect(delegate.appliedPlans, isEmpty);
+    E2eGrid.expectStaged(state.stagingBuffer!, modifiedCells: 1);
+  });
+}

test/e2e/03_data_grid_and_mutations/e2e_grid_ast_filters_and_calc_test.dart

@@ -0,0 +1,77 @@
+import 'package:flutter/material.dart' as material;
+import 'package:flutter_test/flutter_test.dart';
+import 'package:querya_desktop/features/workspace/data_grid_filter_bar.dart';
+
+import '../../support/fake_table_data_delegate.dart';
+import '../../support/generic_table_view_harness.dart';
+import '../helpers/e2e_grid_interactions.dart';
+
+const _timeout = Timeout(Duration(seconds: 60));
+
+FakeTableDataDelegate _accounts() => FakeTableDataDelegate(
+      columns: const ['id', 'name', 'balance'],
+      rows: const [
+        ['1', 'alice', '150.00'],
+        ['2', 'bob', '50.00'],
+        ['3', 'charlie', '300.00'],
+        ['4', 'david', '0.00'],
+      ],
+    );
+
+Future<void> _filter(WidgetTester tester, String text) async {
+  await tester.enterText(
+    find.descendant(
+      of: find.byType(DataGridFilterBar),
+      matching: find.byType(material.TextField),
+    ),
+    text,
+  );
+  await tester.pump(const Duration(milliseconds: 400));
+  await tester.pumpAndSettle();
+}
+
+void main() {
+  testWidgets('balance > 100 keeps only the matching rows', timeout: _timeout,
+      (tester) async {
+    await pumpGenericTableView(tester, _accounts());
+    await tester.tap(find.byTooltip('Toggle Quick Filter'));
+    await tester.pumpAndSettle();
+
+    await _filter(tester, 'balance > 100');
+
+    expect(find.text('alice'), findsOneWidget);
+    expect(find.text('charlie'), findsOneWidget);
+    expect(find.text('bob'), findsNothing);
+    expect(find.text('david'), findsNothing);
+    expect(find.text('2 / 4'), findsOneWidget);
+
+    await _filter(tester, '');
+    expect(find.text('bob'), findsOneWidget);
+    expect(find.text('david'), findsOneWidget);
+  });
+
+  testWidgets('a plain word filters by any cell',
+      timeout: _timeout, (tester) async {
+    await pumpGenericTableView(tester, _accounts());
+    await tester.tap(find.byTooltip('Toggle Quick Filter'));
+    await tester.pumpAndSettle();
+
+    await _filter(tester, 'bob');
+    expect(find.text('alice'), findsNothing);
+    expect(find.text('charlie'), findsNothing);
+    expect(find.text('1 / 4'), findsOneWidget);
+  });
+
+  testWidgets('selecting a numeric cell shows its Quick Calc statistics',
+      timeout: _timeout, (tester) async {
+    await pumpGenericTableView(tester, _accounts());
+
+    await E2eGrid.tapCell(tester, '300.00');
+    await tester.pump(const Duration(milliseconds: 500));
+    await tester.pumpAndSettle();
+
+    expect(find.text('Count: '), findsOneWidget);
+    expect(find.text('Sum: '), findsOneWidget);
+    expect(find.text('Max: '), findsOneWidget);
+  });
+}

test/e2e/03_data_grid_and_mutations/e2e_grid_cell_editing_staging_test.dart

@@ -0,0 +1,84 @@
+import 'package:flutter/services.dart';
+import 'package:flutter_test/flutter_test.dart';
+
+import '../../support/fake_table_data_delegate.dart';
+import '../../support/generic_table_view_harness.dart';
+import '../helpers/e2e_grid_interactions.dart';
+
+const _timeout = Timeout(Duration(seconds: 60));
+
+void main() {
+  testWidgets('double click edits a cell, Revert All restores it',
+      timeout: _timeout, (tester) async {
+    final state = await pumpGenericTableView(tester, FakeTableDataDelegate());
+
+    await E2eGrid.shortcut(tester, LogicalKeyboardKey.keyE, ctrl: true);
+    await tester.pumpAndSettle();
+    expect(state.editMode, isTrue);
+    expect(find.text('No changes'), findsOneWidget);
+
+    await E2eGrid.doubleTapCell(tester, 'Bob');
+    await E2eGrid.typeAndCommit(tester, 'Bobby');
+    await tester.pumpAndSettle();
+
+    E2eGrid.expectStaged(state.stagingBuffer!, modifiedCells: 1);
+    expect(find.text('Bobby'), findsOneWidget);
+    expect(find.text('No changes'), findsNothing);
+
+    await tester.tap(find.text('Revert All'));
+    await tester.pumpAndSettle();
+
+    E2eGrid.expectStaged(state.stagingBuffer!);
+    expect(find.text('Bob'), findsOneWidget);
+    expect(find.text('Bobby'), findsNothing);
+    expect(find.text('No changes'), findsOneWidget);
+  });
+
+  testWidgets('Delete Row marks the selected row and Restore Row undoes it',
+      timeout: _timeout, (tester) async {
+    final state = await pumpGenericTableView(tester, FakeTableDataDelegate());
+    await E2eGrid.shortcut(tester, LogicalKeyboardKey.keyE, ctrl: true);
+    await tester.pumpAndSettle();
+
+    await E2eGrid.tapCell(tester, 'Carol');
+    await tester.tap(find.text('Delete Row'));
+    await tester.pumpAndSettle();
+    E2eGrid.expectStaged(state.stagingBuffer!, deleted: 1);
+    expect(find.text('Restore Row'), findsOneWidget);
+
+    await tester.tap(find.text('Restore Row'));
+    await tester.pumpAndSettle();
+    E2eGrid.expectStaged(state.stagingBuffer!);
+    expect(find.text('Delete Row'), findsOneWidget);
+  });
+
+  testWidgets('Add Row stages an insert and Revert All drops it',
+      timeout: _timeout, (tester) async {
+    final state = await pumpGenericTableView(tester, FakeTableDataDelegate());
+    await E2eGrid.shortcut(tester, LogicalKeyboardKey.keyE, ctrl: true);
+    await tester.pumpAndSettle();
+
+    await tester.tap(find.text('Add Row'));
+    await tester.pumpAndSettle();
+    E2eGrid.expectStaged(state.stagingBuffer!, inserted: 1);
+
+    await tester.tap(find.text('Revert All'));
+    await tester.pumpAndSettle();
+    E2eGrid.expectStaged(state.stagingBuffer!);
+  });
+
+  testWidgets('a read-only session never offers editing', timeout: _timeout,
+      (tester) async {
+    final state = await pumpGenericTableView(
+      tester,
+      FakeTableDataDelegate(),
+      isReadOnly: true,
+    );
+
+    await E2eGrid.shortcut(tester, LogicalKeyboardKey.keyE, ctrl: true);
+    await tester.pumpAndSettle();
+
+    expect(state.editMode, isFalse);
+    expect(find.text('Add Row'), findsNothing);
+  });
+}