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packages/source_maps/test/end2end_test.dart

Index: packages/source_maps/test/end2end_test.dart
diff --git a/packages/source_maps/test/end2end_test.dart b/packages/source_maps/test/end2end_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..7dbc6bd9bbc7b9e6382cfaeb79a7f10b5123fc71
--- /dev/null
+++ b/packages/source_maps/test/end2end_test.dart
@@ -0,0 +1,162 @@
+// 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.end2end_test;
+
+import 'package:unittest/unittest.dart';
+import 'package:source_maps/source_maps.dart';
+import 'package:source_span/source_span.dart';
+import 'common.dart';
+
+main() {
+  test('end-to-end setup', () {
+    expect(inputVar1.text, 'longVar1');
+    expect(inputFunction.text, 'longName');
+    expect(inputVar2.text, 'longVar2');
+    expect(inputVar1NoSymbol.text, 'longVar1');
+    expect(inputFunctionNoSymbol.text, 'longName');
+    expect(inputVar2NoSymbol.text, 'longVar2');
+    expect(inputExpr.text, 'longVar1 + longVar2');
+
+    expect(outputVar1.text, 'x');
+    expect(outputFunction.text, 'f');
+    expect(outputVar2.text, 'y');
+    expect(outputVar1NoSymbol.text, 'x');
+    expect(outputFunctionNoSymbol.text, 'f');
+    expect(outputVar2NoSymbol.text, 'y');
+    expect(outputExpr.text, 'x + y');
+  });
+
+  test('build + parse', () {
+    var map = (new SourceMapBuilder()
+        ..addSpan(inputVar1, outputVar1)
+        ..addSpan(inputFunction, outputFunction)
+        ..addSpan(inputVar2, outputVar2)
+        ..addSpan(inputExpr, outputExpr))
+        .build(output.url.toString());
+    var mapping = parseJson(map);
+    check(outputVar1, mapping, inputVar1, false);
+    check(outputVar2, mapping, inputVar2, false);
+    check(outputFunction, mapping, inputFunction, false);
+    check(outputExpr, mapping, inputExpr, false);
+  });
+
+  test('build + parse - no symbols', () {
+    var map = (new SourceMapBuilder()
+        ..addSpan(inputVar1NoSymbol, outputVar1NoSymbol)
+        ..addSpan(inputFunctionNoSymbol, outputFunctionNoSymbol)
+        ..addSpan(inputVar2NoSymbol, outputVar2NoSymbol)
+        ..addSpan(inputExpr, outputExpr))
+        .build(output.url.toString());
+    var mapping = parseJson(map);
+    check(outputVar1NoSymbol, mapping, inputVar1NoSymbol, false);
+    check(outputVar2NoSymbol, mapping, inputVar2NoSymbol, false);
+    check(outputFunctionNoSymbol, mapping, inputFunctionNoSymbol, false);
+    check(outputExpr, mapping, inputExpr, false);
+  });
+
+  test('build + parse, repeated entries', () {
+    var map = (new SourceMapBuilder()
+        ..addSpan(inputVar1, outputVar1)
+        ..addSpan(inputVar1, outputVar1)
+        ..addSpan(inputFunction, outputFunction)
+        ..addSpan(inputFunction, outputFunction)
+        ..addSpan(inputVar2, outputVar2)
+        ..addSpan(inputVar2, outputVar2)
+        ..addSpan(inputExpr, outputExpr)
+        ..addSpan(inputExpr, outputExpr))
+        .build(output.url.toString());
+    var mapping = parseJson(map);
+    check(outputVar1, mapping, inputVar1, false);
+    check(outputVar2, mapping, inputVar2, false);
+    check(outputFunction, mapping, inputFunction, false);
+    check(outputExpr, mapping, inputExpr, false);
+  });
+
+  test('build + parse - no symbols, repeated entries', () {
+    var map = (new SourceMapBuilder()
+        ..addSpan(inputVar1NoSymbol, outputVar1NoSymbol)
+        ..addSpan(inputVar1NoSymbol, outputVar1NoSymbol)
+        ..addSpan(inputFunctionNoSymbol, outputFunctionNoSymbol)
+        ..addSpan(inputFunctionNoSymbol, outputFunctionNoSymbol)
+        ..addSpan(inputVar2NoSymbol, outputVar2NoSymbol)
+        ..addSpan(inputVar2NoSymbol, outputVar2NoSymbol)
+        ..addSpan(inputExpr, outputExpr))
+        .build(output.url.toString());
+    var mapping = parseJson(map);
+    check(outputVar1NoSymbol, mapping, inputVar1NoSymbol, false);
+    check(outputVar2NoSymbol, mapping, inputVar2NoSymbol, false);
+    check(outputFunctionNoSymbol, mapping, inputFunctionNoSymbol, false);
+    check(outputExpr, mapping, inputExpr, false);
+  });
+
+  test('build + parse with file', () {
+    var json = (new SourceMapBuilder()
+        ..addSpan(inputVar1, outputVar1)
+        ..addSpan(inputFunction, outputFunction)
+        ..addSpan(inputVar2, outputVar2)
+        ..addSpan(inputExpr, outputExpr))
+        .toJson(output.url.toString());
+    var mapping = parse(json);
+    check(outputVar1, mapping, inputVar1, true);
+    check(outputVar2, mapping, inputVar2, true);
+    check(outputFunction, mapping, inputFunction, true);
+    check(outputExpr, mapping, inputExpr, true);
+  });
+
+  test('printer projecting marks + parse', () {
+    var out = INPUT.replaceAll('long', '_s');
+    var file = new SourceFile(out, url: 'output2.dart');
+    var printer = new Printer('output2.dart');
+    printer.mark(ispan(0, 0));
+
+    bool first = true;
+    var segments = INPUT.split('long');
+    expect(segments.length, 6);
+    printer.add(segments[0], projectMarks: true);
+    printer.mark(inputVar1);
+    printer.add('_s');
+    printer.add(segments[1], projectMarks: true);
+    printer.mark(inputFunction);
+    printer.add('_s');
+    printer.add(segments[2], projectMarks: true);
+    printer.mark(inputVar2);
+    printer.add('_s');
+    printer.add(segments[3], projectMarks: true);
+    printer.mark(inputExpr);
+    printer.add('_s');
+    printer.add(segments[4], projectMarks: true);
+    printer.add('_s');
+    printer.add(segments[5], projectMarks: true);
+
+    expect(printer.text, out);
+
+    var mapping = parse(printer.map);
+    checkHelper(SourceMapSpan inputSpan, int adjustment) {
+      var start = inputSpan.start.offset - adjustment;
+      var end = (inputSpan.end.offset - adjustment) - 2;
+      var span = new SourceMapFileSpan(file.span(start, end),
+          isIdentifier: inputSpan.isIdentifier);
+      check(span, mapping, inputSpan, true);
+    }
+
+    checkHelper(inputVar1, 0);
+    checkHelper(inputFunction, 2);
+    checkHelper(inputVar2, 4);
+    checkHelper(inputExpr, 6);
+
+    // We projected correctly lines that have no mappings
+    check(file.span(66, 66), mapping, ispan(45, 45), true);
+    check(file.span(63, 64), mapping, ispan(45, 45), true);
+    check(file.span(68, 68), mapping, ispan(70, 70), true);
+    check(file.span(71, 71), mapping, ispan(70, 70), true);
+
+    // Start of the last line
+    var oOffset = out.length - 2;
+    var iOffset = INPUT.length - 2;
+    check(file.span(oOffset, oOffset), mapping, ispan(iOffset, iOffset), true);
+    check(file.span(oOffset + 1, oOffset + 1), mapping,
+        ispan(iOffset, iOffset), true);
+  });
+}