Support source_span spans in barback.

sdk/lib/_internal/pub/test/preprocess_test.dart

 // Copyright (c) 2014, 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.test.preprocess_test;
 
 import 'package:unittest/unittest.dart';
 
 import '../lib/src/preprocess.dart';
 import '../lib/src/version.dart';
@@ skipping 19 matching lines @@
 
   test("allows empty insert directive", () {
     expect(_preprocess('''
 //> foo
 //>
 //> bar
 '''), equals('foo\n\nbar\n'));
   });
 
   group("if", () {
-    test("removes sections with non-matching versions", () {
-      expect(_preprocess('''
+    group("with a version range", () {
+      test("removes sections with non-matching versions", () {
+        expect(_preprocess('''
 before
 //# if barback <1.0.0
 inside
 //# end
 after
 '''), equals('''
 before
 after
 '''));
-    });
+      });
 
-    test("doesn't insert section with non-matching versions", () {
-      expect(_preprocess('''
+      test("doesn't insert section with non-matching versions", () {
+        expect(_preprocess('''
 before
 //# if barback <1.0.0
 //> inside
 //# end
 after
 '''), equals('''
 before
 after
 '''));
-    });
+      });
 
-    test("doesn't remove sections with matching versions", () {
-      expect(_preprocess('''
+      test("doesn't remove sections with matching versions", () {
+        expect(_preprocess('''
 before
 //# if barback >1.0.0
 inside
 //# end
 after
 '''), equals('''
 before
 inside
 after
 '''));
-    });
+      });
 
-    test("inserts sections with matching versions", () {
-      expect(_preprocess('''
+      test("inserts sections with matching versions", () {
+        expect(_preprocess('''
 before
 //# if barback >1.0.0
 //> inside
 //# end
 after
 '''), equals('''
 before
 inside
 after
 '''));
-    });
+      });
 
-    test("allows version ranges", () {
-      expect(_preprocess('''
+      test("allows multi-element version ranges", () {
+        expect(_preprocess('''
 before
 //# if barback >=1.0.0 <2.0.0
 inside 1
 //# end
 //# if barback >=0.9.0 <1.0.0
 inside 2
 //# end
 after
 '''), equals('''
 before
 inside 1
 after
 '''));
+      });
+    });
+
+    group("with a package name", () {
+      test("removes sections for a nonexistent package", () {
+        expect(_preprocess('''
+before
+//# if fblthp
+inside
+//# end
+after
+'''), equals('''
+before
+after
+'''));
+      });
+
+      test("doesn't insert sections for a nonexistent package", () {
+        expect(_preprocess('''
+before
+//# if fblthp
+//> inside
+//# end
+after
+'''), equals('''
+before
+after
+'''));
+      });
+
+      test("doesn't remove sections with an existent package", () {
+        expect(_preprocess('''
+before
+//# if barback
+inside
+//# end
+after
+'''), equals('''
+before
+inside
+after
+'''));
+      });
+
+      test("inserts sections with an existent package", () {
+        expect(_preprocess('''
+before
+//# if barback
+//> inside
+//# end
+after
+'''), equals('''
+before
+inside
+after
+'''));
+      });
     });
   });
 
   group("else", () {
     test("removes non-matching sections", () {
       expect(_preprocess('''
 before
 //# if barback >1.0.0
 inside 1
 //# else
@@ skipping 63 matching lines @@
 
     test("disallows insert directive without space", () {
       expect(() => _preprocess('//>foo'), throwsFormatException);
     });
 
     group("if", () {
       test("disallows if with no arguments", () {
         expect(() => _preprocess('//# if\n//# end'), throwsFormatException);
       });
 
-      test("disallows if with no version range", () {
-        expect(() => _preprocess('//# if barback\n//# end'),
-            throwsFormatException);
-      });
-
       test("disallows if with no package", () {
         expect(() => _preprocess('//# if <=1.0.0\n//# end'),
             throwsFormatException);
       });
 
-      test("disallows unknown package name", () {
-        expect(() => _preprocess('//# if polymer <=1.0.0\n//# end'),
-            throwsFormatException);
-      });
-
       test("disallows invalid version constraint", () {
         expect(() => _preprocess('//# if barback >=1.0\n//# end'),
             throwsFormatException);
       });
 
       test("disallows dangling end", () {
         expect(() => _preprocess('//# end'),
             throwsFormatException);
       });
 
@@ skipping 28 matching lines @@
 //# if barback >=1.0.0
 //# else barback <0.5.0
 //# end
 '''), throwsFormatException);
       });
     });
   });
 }
 
 String _preprocess(String input) =>
-    preprocess(input, new Version.parse("1.2.3"), 'source/url');
+    preprocess(input, {'barback': new Version.parse("1.2.3")}, 'source/url');