import 'package:moor/moor.dart';
import 'package:test/test.dart';

import '../data/tables/todos.dart';
import '../data/utils/expect_generated.dart';

void main() {
  final expression = GeneratedTextColumn('col', null, false);
  final db = TodoDb(null);

  test('generates like expressions', () {
    final ctx = GenerationContext.fromDb(db);
    expression.like('pattern').writeInto(ctx);

    expect(ctx.sql, 'col LIKE ?');
    expect(ctx.boundVariables, ['pattern']);
  });

  test('generates collate expressions', () {
    final ctx = GenerationContext.fromDb(db);
    expression.collate(Collate.noCase).writeInto(ctx);

    expect(ctx.sql, 'col COLLATE NOCASE');
    expect(ctx.boundVariables, isEmpty);
  });

  test('can use string functions', () {
    expression.upper().expectGenerates('UPPER(col)');
    expression.lower().expectGenerates('LOWER(col)');
    expression.length.expectGenerates('LENGTH(col)');
  });
}