Fix behavior causing frames lacking a source map to always be omitted. Add `includeUnmappedFrames` …

test/source_map_stack_trace_test.dart

 // Copyright (c) 2015, 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.
 
 import 'package:package_resolver/package_resolver.dart';
+import 'package:path/path.dart' as path;

[nweiz, 2016/12/08 23:34:31]

as p

[Jacob, 2016/12/09 02:18:28]

Done.

 import 'package:source_maps/source_maps.dart';
 import 'package:source_span/source_span.dart';
 import 'package:stack_trace/stack_trace.dart';
 import 'package:source_map_stack_trace/source_map_stack_trace.dart';
 import 'package:test/test.dart';
 
 /// A simple [Mapping] for tests that don't need anything special.
-final _simpleMapping = parseJson(
-    (new SourceMapBuilder()
-        ..addSpan(
-            new SourceMapSpan.identifier(
-                new SourceLocation(1,
-                    line: 1, column: 3, sourceUrl: "foo.dart"),
-                "qux"),
-            new SourceSpan(
-                new SourceLocation(8, line: 5, column: 0),
-                new SourceLocation(18, line: 15, column: 0),
-                "\n" * 10)))
-        .build("foo.dart.js.map"));
+final _simpleMapping = parseJson((new SourceMapBuilder()
+      ..addSpan(
+          new SourceMapSpan.identifier(
+              new SourceLocation(1, line: 1, column: 3, sourceUrl: "foo.dart"),
+              "qux"),
+          new SourceSpan(new SourceLocation(8, line: 5, column: 0),
+              new SourceLocation(18, line: 15, column: 0), "\n" * 10)))
+    .build("foo.dart.js.map"));
 
 void main() {
   test("maps a JS line and column to a Dart line and span", () {
     var trace = new Trace.parse("foo.dart.js 10:11  foo");
     var frame = _mapTrace(_simpleMapping, trace).frames.first;
     expect(frame.uri, equals(Uri.parse("foo.dart")));
 
     // These are +1 because stack_trace is 1-based whereas source_span is
     // 0-basd.
     expect(frame.line, equals(2));
@@ skipping 20 matching lines @@
 foo.dart.js 10:11  baz
 """);
 
     var frames = _mapTrace(_simpleMapping, trace).frames;
 
     expect(frames.length, equals(2));
     expect(frames.first.member, equals("foo"));
     expect(frames.last.member, equals("baz"));
   });
 
+  test("shows JS frames without corresponding spans", () {

[nweiz, 2016/12/08 23:34:31]

Put these in a "with includeUnmappedFrames" group.

[Jacob, 2016/12/09 02:18:28]

obsolete as all but one test doesn't matter given offline suggestions.

+    var trace = new Trace.parse("""
+foo.dart.js 10:11  foo
+foo.dart.js 1:1   bar
+foo.dart.js 10:11  baz
+""");
+
+    var frames =
+        _mapTrace(_simpleMapping, trace, includeUnmappedFrames: true).frames;
+
+    expect(frames.length, equals(3));
+    expect(frames.first.member, equals("foo"));
+    expect(frames[1].member, equals("bar"));
+    expect(frames.last.member, equals("baz"));
+
+    expect(path.basename(frames.first.uri.toString()), equals("foo.dart"));
+    expect(path.basename(frames[1].uri.toString()), equals("foo.dart.js"));
+  });
+
+  test("ignore frames that do not match files in source map bundle", () {
+    var trace = new Trace.parse("""
+foo.dart.js 10  foo
+wrong_file.dart.js 10  foo
+""");
+    var builder = new SourceMapBuilder()
+      ..addSpan(
+          new SourceMapSpan.identifier(
+              new SourceLocation(1,
+                  line: 1, column: 3, sourceUrl: "packages/foo/foo.dart"),
+              "qux"),
+          new SourceSpan(new SourceLocation(8, line: 5, column: 0),
+              new SourceLocation(12, line: 9, column: 1), "\n" * 4));
+    var sourceMapJson = builder.build("foo.dart.js.map");
+    sourceMapJson['file'] = "foo.dart.js";
+    var bundle = [sourceMapJson];
+    var mapping = parseJsonExtended(bundle);
+    var frames = _mapTrace(mapping, trace,
+            packageRoot: "packages/", includeUnmappedFrames: true)

[nweiz, 2016/12/08 23:34:31]

packageRoot is deprecated; use packageResolver instead.

[Jacob, 2016/12/09 02:18:28]

Done.

+        .frames;
+    expect(frames.length, equals(2));
+    var frame = frames.first;
+    expect(frame.uri, equals(Uri.parse("package:foo/foo.dart")));
+    expect(frame.line, equals(2));
+    expect(frame.column, equals(4));
+    frame = frames.last;
+    expect(path.basename(frame.uri.toString()), equals("wrong_file.dart.js"));
+    expect(frame.line, equals(10));

[nweiz, 2016/12/08 23:34:31]

Add some empty lines here, this is difficult to read.

[Jacob, 2016/12/09 02:18:28]

Done.

+  });
+
   test("falls back to column 0 for unlisted column", () {
     var trace = new Trace.parse("foo.dart.js 10  foo");
     var builder = new SourceMapBuilder()
-        ..addSpan(
-            new SourceMapSpan.identifier(
-                new SourceLocation(1,
-                    line: 1, column: 3, sourceUrl: "foo.dart"),
-                "qux"),
-            new SourceSpan(
-                new SourceLocation(8, line: 5, column: 0),
-                new SourceLocation(12, line: 9, column: 1),
-                "\n" * 4));
+      ..addSpan(
+          new SourceMapSpan.identifier(
+              new SourceLocation(1, line: 1, column: 3, sourceUrl: "foo.dart"),
+              "qux"),
+          new SourceSpan(new SourceLocation(8, line: 5, column: 0),
+              new SourceLocation(12, line: 9, column: 1), "\n" * 4));
 
     var mapping = parseJson(builder.build("foo.dart.js.map"));
     var frame = _mapTrace(mapping, trace).frames.first;
     expect(frame.uri, equals(Uri.parse("foo.dart")));
     expect(frame.line, equals(2));
     expect(frame.column, equals(4));
   });
 
   test("uses package: URIs for frames within packageRoot", () {
     var trace = new Trace.parse("foo.dart.js 10  foo");
     var builder = new SourceMapBuilder()
-        ..addSpan(
-            new SourceMapSpan.identifier(
-                new SourceLocation(1,
-                    line: 1, column: 3, sourceUrl: "packages/foo/foo.dart"),
-                "qux"),
-            new SourceSpan(
-                new SourceLocation(8, line: 5, column: 0),
-                new SourceLocation(12, line: 9, column: 1),
-                "\n" * 4));
+      ..addSpan(
+          new SourceMapSpan.identifier(
+              new SourceLocation(1,
+                  line: 1, column: 3, sourceUrl: "packages/foo/foo.dart"),
+              "qux"),
+          new SourceSpan(new SourceLocation(8, line: 5, column: 0),
+              new SourceLocation(12, line: 9, column: 1), "\n" * 4));
 
     var mapping = parseJson(builder.build("foo.dart.js.map"));
-    var frame = _mapTrace(mapping, trace, packageRoot: "packages/")
-        .frames.first;
+    var frame =
+        _mapTrace(mapping, trace, packageRoot: "packages/").frames.first;
     expect(frame.uri, equals(Uri.parse("package:foo/foo.dart")));
     expect(frame.line, equals(2));
     expect(frame.column, equals(4));
   });
 
   test("uses package: URIs for frames within packageResolver.packageRoot", () {
     var trace = new Trace.parse("foo.dart.js 10  foo");
     var builder = new SourceMapBuilder()
-        ..addSpan(
-            new SourceMapSpan.identifier(
-                new SourceLocation(1,
-                    line: 1, column: 3, sourceUrl: "packages/foo/foo.dart"),
-                "qux"),
-            new SourceSpan(
-                new SourceLocation(8, line: 5, column: 0),
-                new SourceLocation(12, line: 9, column: 1),
-                "\n" * 4));
+      ..addSpan(
+          new SourceMapSpan.identifier(
+              new SourceLocation(1,
+                  line: 1, column: 3, sourceUrl: "packages/foo/foo.dart"),
+              "qux"),
+          new SourceSpan(new SourceLocation(8, line: 5, column: 0),
+              new SourceLocation(12, line: 9, column: 1), "\n" * 4));
 
     var mapping = parseJson(builder.build("foo.dart.js.map"));
     var mappedTrace = _mapTrace(mapping, trace,
         packageResolver: new SyncPackageResolver.root("packages/"));
     var frame = mappedTrace.frames.first;
     expect(frame.uri, equals(Uri.parse("package:foo/foo.dart")));
     expect(frame.line, equals(2));
     expect(frame.column, equals(4));
   });
 
   test("uses package: URIs for frames within a packageResolver.packageMap URL",
       () {
     var trace = new Trace.parse("foo.dart.js 10  foo");
     var builder = new SourceMapBuilder()
-        ..addSpan(
-            new SourceMapSpan.identifier(
-                new SourceLocation(1,
-                    line: 1, column: 3, sourceUrl: "packages/foo/foo.dart"),
-                "qux"),
-            new SourceSpan(
-                new SourceLocation(8, line: 5, column: 0),
-                new SourceLocation(12, line: 9, column: 1),
-                "\n" * 4));
+      ..addSpan(
+          new SourceMapSpan.identifier(
+              new SourceLocation(1,
+                  line: 1, column: 3, sourceUrl: "packages/foo/foo.dart"),
+              "qux"),
+          new SourceSpan(new SourceLocation(8, line: 5, column: 0),
+              new SourceLocation(12, line: 9, column: 1), "\n" * 4));
 
     var mapping = parseJson(builder.build("foo.dart.js.map"));
     var mappedTrace = _mapTrace(mapping, trace,
-        packageResolver: new SyncPackageResolver.config({
-          "foo": Uri.parse("packages/foo")
-        }));
+        packageResolver:
+            new SyncPackageResolver.config({"foo": Uri.parse("packages/foo")}));
     var frame = mappedTrace.frames.first;
     expect(frame.uri, equals(Uri.parse("package:foo/foo.dart")));
     expect(frame.line, equals(2));
     expect(frame.column, equals(4));
   });
 
   test("uses dart: URIs for frames within sdkRoot", () {
     var trace = new Trace.parse("foo.dart.js 10  foo");
     var builder = new SourceMapBuilder()
-        ..addSpan(
-            new SourceMapSpan.identifier(
-                new SourceLocation(1,
-                    line: 1, column: 3, sourceUrl: "sdk/lib/async/foo.dart"),
-                "qux"),
-            new SourceSpan(
-                new SourceLocation(8, line: 5, column: 0),
-                new SourceLocation(12, line: 9, column: 1),
-                "\n" * 4));
+      ..addSpan(
+          new SourceMapSpan.identifier(
+              new SourceLocation(1,
+                  line: 1, column: 3, sourceUrl: "sdk/lib/async/foo.dart"),
+              "qux"),
+          new SourceSpan(new SourceLocation(8, line: 5, column: 0),
+              new SourceLocation(12, line: 9, column: 1), "\n" * 4));
 
     var mapping = parseJson(builder.build("foo.dart.js.map"));
     var frame = _mapTrace(mapping, trace, sdkRoot: "sdk/").frames.first;
     expect(frame.uri, equals(Uri.parse("dart:async/foo.dart")));
     expect(frame.line, equals(2));
     expect(frame.column, equals(4));
   });
 
   test("converts a stack chain", () {
     var trace = new Chain([
@@ skipping 30 matching lines @@
       expect(_prettify(r"foo$1$bar"), equals("foo"));
       expect(_prettify(r"foo$123$bar$bang$qux"), equals("foo"));
     });
 
     test("closures", () {
       expect(_prettify("foo_closure.call"), equals("foo.<fn>"));
     });
 
     test("nested closures", () {
       expect(_prettify("foo__closure.call"), equals("foo.<fn>.<fn>"));
-      expect(_prettify("foo____closure.call"),
-          equals("foo.<fn>.<fn>.<fn>.<fn>"));
+      expect(
+          _prettify("foo____closure.call"), equals("foo.<fn>.<fn>.<fn>.<fn>"));
     });
 
     test(".call", () {
       expect(_prettify("foo.call"), equals("foo"));
     });
 
     test("top-level functions", () {
       expect(_prettify("dart.foo"), equals("foo"));
     });
 
@@ skipping 12 matching lines @@
     test("lots of stuff", () {
       expect(_prettify(r"lib$Foo.static.lib$Foo_closure.call$0/<"),
           equals("Foo.<fn>"));
     });
   });
 }
 
 /// Like [mapStackTrace], but is guaranteed to return a [Trace] so it can be
 /// inspected.
 Trace _mapTrace(Mapping sourceMap, StackTrace stackTrace,
-    {bool minified: false, SyncPackageResolver packageResolver, sdkRoot,
-    packageRoot}) {
+    {bool minified: false,
+    SyncPackageResolver packageResolver,
+    sdkRoot,
+    packageRoot,
+    bool includeUnmappedFrames: false}) {
   return new Trace.from(mapStackTrace(sourceMap, stackTrace,
-      minified: minified, packageResolver: packageResolver, sdkRoot: sdkRoot,
-      packageRoot: packageRoot));
+      minified: minified,
+      packageResolver: packageResolver,
+      sdkRoot: sdkRoot,
+      packageRoot: packageRoot,
+      includeUnmappedFrames: includeUnmappedFrames));
 }
 
 /// Like [mapStackTrace], but is guaranteed to return a [Chain] so it can be
 /// inspected.
 Chain _mapChain(Mapping sourceMap, StackTrace stackTrace,
-    {bool minified: false, SyncPackageResolver packageResolver, sdkRoot,
-    packageRoot}) {
+    {bool minified: false,
+    SyncPackageResolver packageResolver,
+    sdkRoot,
+    packageRoot,
+    bool includeUnmappedFrames: false}) {
   return new Chain.forTrace(mapStackTrace(sourceMap, stackTrace,
-      minified: minified, packageResolver: packageResolver, sdkRoot: sdkRoot,
-      packageRoot: packageRoot));
+      minified: minified,
+      packageResolver: packageResolver,
+      sdkRoot: sdkRoot,
+      packageRoot: packageRoot,
+      includeUnmappedFrames: includeUnmappedFrames));
 }
 
 /// Runs the mapper's prettification logic on [member] and returns the result.
 String _prettify(String member) {
   var trace = new Trace([new Frame(Uri.parse("foo.dart.js"), 10, 11, member)]);
   return _mapTrace(_simpleMapping, trace).frames.first.member;
 }