| // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| library test.printer_test; |
| |
| import 'dart:convert'; |
| import 'package:test/test.dart'; |
| import 'package:source_maps/source_maps.dart'; |
| import 'package:source_span/source_span.dart'; |
| import 'common.dart'; |
| |
| void main() { |
| test('printer', () { |
| var printer = Printer('output.dart'); |
| printer |
| ..add('var ') |
| ..mark(inputVar1) |
| ..add('x = 3;\n') |
| ..mark(inputFunction) |
| ..add('f(') |
| ..mark(inputVar2) |
| ..add('y) => ') |
| ..mark(inputExpr) |
| ..add('x + y;\n'); |
| expect(printer.text, OUTPUT); |
| expect(printer.map, jsonEncode(EXPECTED_MAP)); |
| }); |
| |
| test('printer projecting marks', () { |
| var out = INPUT.replaceAll('long', '_s'); |
| var printer = Printer('output2.dart'); |
| |
| var segments = INPUT.split('long'); |
| expect(segments.length, 6); |
| printer |
| ..mark(ispan(0, 0)) |
| ..add(segments[0], projectMarks: true) |
| ..mark(inputVar1) |
| ..add('_s') |
| ..add(segments[1], projectMarks: true) |
| ..mark(inputFunction) |
| ..add('_s') |
| ..add(segments[2], projectMarks: true) |
| ..mark(inputVar2) |
| ..add('_s') |
| ..add(segments[3], projectMarks: true) |
| ..mark(inputExpr) |
| ..add('_s') |
| ..add(segments[4], projectMarks: true) |
| ..add('_s') |
| ..add(segments[5], projectMarks: true); |
| |
| expect(printer.text, out); |
| // 8 new lines in the source map: |
| expect(printer.map.split(';').length, 8); |
| |
| SourceMapSpan asFixed(SourceMapSpan s) => |
| SourceMapSpan(s.start, s.end, s.text, isIdentifier: s.isIdentifier); |
| |
| // The result is the same if we use fixed positions |
| var printer2 = Printer('output2.dart'); |
| printer2 |
| ..mark(SourceLocation(0, sourceUrl: 'input.dart').pointSpan()) |
| ..add(segments[0], projectMarks: true) |
| ..mark(asFixed(inputVar1)) |
| ..add('_s') |
| ..add(segments[1], projectMarks: true) |
| ..mark(asFixed(inputFunction)) |
| ..add('_s') |
| ..add(segments[2], projectMarks: true) |
| ..mark(asFixed(inputVar2)) |
| ..add('_s') |
| ..add(segments[3], projectMarks: true) |
| ..mark(asFixed(inputExpr)) |
| ..add('_s') |
| ..add(segments[4], projectMarks: true) |
| ..add('_s') |
| ..add(segments[5], projectMarks: true); |
| |
| expect(printer2.text, out); |
| expect(printer2.map, printer.map); |
| }); |
| |
| group('nested printer', () { |
| test('simple use', () { |
| var printer = NestedPrinter(); |
| printer |
| ..add('var ') |
| ..add('x = 3;\n', span: inputVar1) |
| ..add('f(', span: inputFunction) |
| ..add('y) => ', span: inputVar2) |
| ..add('x + y;\n', span: inputExpr) |
| ..build('output.dart'); |
| expect(printer.text, OUTPUT); |
| expect(printer.map, jsonEncode(EXPECTED_MAP)); |
| }); |
| |
| test('nested use', () { |
| var printer = NestedPrinter(); |
| printer |
| ..add('var ') |
| ..add(NestedPrinter()..add('x = 3;\n', span: inputVar1)) |
| ..add('f(', span: inputFunction) |
| ..add(NestedPrinter()..add('y) => ', span: inputVar2)) |
| ..add('x + y;\n', span: inputExpr) |
| ..build('output.dart'); |
| expect(printer.text, OUTPUT); |
| expect(printer.map, jsonEncode(EXPECTED_MAP)); |
| }); |
| |
| test('add indentation', () { |
| var out = INPUT.replaceAll('long', '_s'); |
| var lines = INPUT.trim().split('\n'); |
| expect(lines.length, 7); |
| var printer = NestedPrinter(); |
| for (var i = 0; i < lines.length; i++) { |
| if (i == 5) printer.indent++; |
| printer.addLine(lines[i].replaceAll('long', '_s').trim()); |
| if (i == 5) printer.indent--; |
| } |
| printer.build('output.dart'); |
| expect(printer.text, out); |
| }); |
| }); |
| } |