Show detailed report on upgrade.

sdk/lib/_internal/pub/test/upgrade/report/leading_character_shows_change_test.dart

Index: sdk/lib/_internal/pub/test/upgrade/report/leading_character_shows_change_test.dart
diff --git a/sdk/lib/_internal/pub/test/upgrade/report/leading_character_shows_change_test.dart b/sdk/lib/_internal/pub/test/upgrade/report/leading_character_shows_change_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..815f640b8e56ccdd71859404db3eacecc37ca6cc
--- /dev/null
+++ b/sdk/lib/_internal/pub/test/upgrade/report/leading_character_shows_change_test.dart
@@ -0,0 +1,92 @@
+// 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 pub_tests;
+
+import '../../descriptor.dart' as d;
+import '../../test_pub.dart';
+
+main() {
+  initConfig();
+  integration("the character before each package describes the change", () {
+    servePackages([
+      packageMap("added", "1.0.0"),
+      packageMap("downgraded", "1.0.0"),
+      packageMap("downgraded", "2.0.0"),
+      packageMap("overridden", "1.0.0"),
+      packageMap("removed", "1.0.0"),
+      packageMap("source_changed", "1.0.0"),
+      packageMap("upgraded", "1.0.0"),
+      packageMap("upgraded", "2.0.0"),
+      packageMap("unchanged", "1.0.0")
+    ]);
+
+    d.dir("description_changed_1", [
+      d.libDir("description_changed"),
+      d.libPubspec("description_changed", "1.0.0")
+    ]).create();
+
+    d.dir("description_changed_2", [
+      d.libDir("description_changed"),
+      d.libPubspec("description_changed", "1.0.0")
+    ]).create();
+
+    d.dir("source_changed", [
+      d.libDir("source_changed"),
+      d.libPubspec("source_changed", "1.0.0")
+    ]).create();
+
+    // Create the first lockfile.
+    d.dir(appPath, [
+      d.pubspec({
+        "name": "myapp",
+        "dependencies": {
+          "description_changed": {"path": "../description_changed_1"},
+          "downgraded": "2.0.0",
+          "removed": "any",
+          "source_changed": "any",
+          "unchanged": "any",
+          "upgraded": "1.0.0"
+        },
+        "dependency_overrides": {
+          "overridden": "any"
+        }
+      })
+    ]).create();
+
+    pubGet();
+
+    // Change the pubspec.
+    d.dir(appPath, [
+      d.pubspec({
+        "name": "myapp",
+        "dependencies": {
+          "added": "any",
+          "description_changed": {"path": "../description_changed_2"},
+          "downgraded": "1.0.0",
+          "source_changed": {"path": "../source_changed"},
+          "unchanged": "any",
+          "upgraded": "2.0.0"
+        },
+        "dependency_overrides": {
+          "overridden": "any"
+        }
+      })
+    ]).create();
+
+    // Upgrade everything.
+    pubUpgrade(output: new RegExp(r"""
+Resolving dependencies\.+
+\+ added .*
+\* description_changed .*
+< downgraded .*
+! overridden .*
+\* source_changed .*
+  unchanged .*
+> upgraded .*
+These packages are no longer being depended on:
+- removed .*
+""", multiLine: true));
+  });
+}