Fix a couple ScheduleError error messages.

pkg/scheduled_test/lib/src/schedule_error.dart

Index: pkg/scheduled_test/lib/src/schedule_error.dart
diff --git a/pkg/scheduled_test/lib/src/schedule_error.dart b/pkg/scheduled_test/lib/src/schedule_error.dart
index 0f97161a58a4407f42ea1a8d80f323a117a0498e..458e2c4e685f10182e895e9fcd404d124651a0aa 100644
--- a/pkg/scheduled_test/lib/src/schedule_error.dart
+++ b/pkg/scheduled_test/lib/src/schedule_error.dart
@@ -19,6 +19,10 @@ class ScheduleError extends AsyncError {
   /// there was no such task.
   final Task task;
 
+  /// Whether the schedule was finished executing at the time the error was
+  /// detected.
+  bool _scheduleWasDone;
+
   /// Creates a new [ScheduleError] wrapping [error]. The metadata in
   /// [AsyncError]s and [ScheduleError]s will be preserved.
   factory ScheduleError.from(Schedule schedule, error, {stackTrace,
@@ -40,7 +44,9 @@ class ScheduleError extends AsyncError {
   }
 
   ScheduleError(this.schedule, error, stackTrace, AsyncError cause, this.task)
-    : super.withCause(error, stackTrace, cause);
+    : super.withCause(error, stackTrace, cause) {

[Bob Nystrom, 2013/02/11 22:30:19]

Indent another two.

+    _scheduleWasDone = schedule.done;

[Bob Nystrom, 2013/02/11 22:30:19]

I'd prefer this to be final and in the initialization list. You'll have to make
schedule not use "this." and manually initialize it too, but I like making
things final whenever possible.

+  }
 
   String toString() {
     var result = new StringBuffer();
@@ -61,10 +67,10 @@ class ScheduleError extends AsyncError {
     if (task != null) {
       result.add('Error detected during task in queue "${task.queue}":\n');
       result.add(task.generateTree());
-    } else if (schedule.done) {
+    } else if (_scheduleWasDone) {
       result.add('Error detected after all tasks in the queue had finished.');
     } else {
-      result.add('Error detected before the schedule started running');
+      result.add('Error detected before the schedule started running.');
     }
 
     return result.toString();