Remove backends.

compiler/javatests/com/google/dart/compiler/end2end/inc/IncrementalCompilation2Test.java

 // Copyright (c) 2012, 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.
 package com.google.dart.compiler.end2end.inc;
 
 import static com.google.dart.compiler.DartCompiler.EXTENSION_DEPS;
 import static com.google.dart.compiler.DartCompiler.EXTENSION_TIMESTAMP;
 import static com.google.dart.compiler.common.ErrorExpectation.assertErrors;
 import static com.google.dart.compiler.common.ErrorExpectation.errEx;
 
 import com.google.common.collect.Lists;
 import com.google.dart.compiler.CompilerTestCase;
 import com.google.dart.compiler.DartCompilationError;
 import com.google.dart.compiler.DartCompiler;
 import com.google.dart.compiler.DartCompilerErrorCode;
 import com.google.dart.compiler.DartCompilerListener;
 import com.google.dart.compiler.DartSource;
 import com.google.dart.compiler.DefaultCompilerConfiguration;
 import com.google.dart.compiler.LibrarySource;
 import com.google.dart.compiler.MockArtifactProvider;
 import com.google.dart.compiler.Source;
 import com.google.dart.compiler.ast.DartUnit;
-import com.google.dart.compiler.backend.js.JavascriptBackend;
 import com.google.dart.compiler.resolver.ResolverErrorCode;
 import com.google.dart.compiler.resolver.TypeErrorCode;
 
 import junit.framework.AssertionFailedError;
 
 import java.io.IOException;
 import java.io.Reader;
 import java.io.StringReader;
 import java.io.Writer;
 import java.util.List;
@@ skipping 34 matching lines @@
       "// filler filler filler filler filler filler filler filler filler filler filler",
       "#library('application');",
       "#source('A.dart');",
       "#source('B.dart');",
       "#source('C.dart');",
       "");
   private final List<DartCompilationError> errors = Lists.newArrayList();
 
   @Override
   protected void setUp() throws Exception {
-    config = new DefaultCompilerConfiguration(new JavascriptBackend()) {
+    config = new DefaultCompilerConfiguration() {
       @Override
       public boolean incremental() {
         return true;
       }
     };
     provider = new IncMockArtifactProvider();
     appSource = new MemoryLibrarySource(APP, "<not-used>") {
       @Override
       public long getLastModified() {
         return appSourceLastModified;
@@ skipping 89 matching lines @@
     didWrite("B.dart", EXTENSION_TIMESTAMP);
     assertAppBuilt();
     // "hole" was filled with top-level field.
     assertErrors(errors);
   }
 
   /**
    * Test for "hole" feature. If we use unqualified invocation and add/remove top-level method, this
    * should cause compilation of invocation unit.
    */
-  public void test_isMethodHole_useUnqualifiedInvocation() {
+  public void test_isMethodHole_useUnqualifiedInvocation() throws Exception {
     appSource.setContent(
         "B.dart",
         makeCode(
             "// filler filler filler filler filler filler filler filler filler filler filler",
             "class A {",
             "  foo() {}",
             "}",
             ""));
     appSource.setContent(
         "C.dart",
@@ skipping 16 matching lines @@
               "foo() {}",
               ""));
       compile();
       // B should be compiled because it also declares foo(), so produces "shadow" conflict.
       // C should be compiled because it has unqualified invocation which was declared in A.
       didWrite("A.dart", EXTENSION_TIMESTAMP);
       didWrite("B.dart", EXTENSION_TIMESTAMP);
       didWrite("C.dart", EXTENSION_TIMESTAMP);
       assertAppBuilt();
     }
+    // Wait, because analysis is so fast that may be A will have same time as old artifact.
+    Thread.sleep(5);
     // Remove top-level foo(), so invocation of foo() in B should be bound to the super class.
     {
       appSource.setContent("A.dart", "");
       compile();
       // B should be compiled because it also declares foo(), so produces "shadow" conflict.
       // C should be compiled because it has unqualified invocation which was declared in A.
       didWrite("A.dart", EXTENSION_TIMESTAMP);
       didWrite("B.dart", EXTENSION_TIMESTAMP);
       didWrite("C.dart", EXTENSION_TIMESTAMP);
     }
@@ skipping 39 matching lines @@
       didWrite("B.dart", EXTENSION_TIMESTAMP);
       didNotWrite("C.dart", EXTENSION_TIMESTAMP);
       assertAppBuilt();
     }
   }
 
   /**
    * Test for "hole" feature. If we use unqualified access and add/remove top-level field, this
    * should cause compilation of invocation unit.
    */
-  public void test_fieldHole_useUnqualifiedAccess() {
+  public void test_fieldHole_useUnqualifiedAccess() throws Exception {
     appSource.setContent(
         "B.dart",
         makeCode(
             "// filler filler filler filler filler filler filler filler filler filler filler",
             "class A {",
             "  var foo;",
             "}",
             ""));
     appSource.setContent(
         "C.dart",
@@ skipping 16 matching lines @@
               "var foo;",
               ""));
       compile();
       // B should be compiled because it also declares "foo", so produces "shadow" conflict.
       // C should be compiled because it has unqualified invocation which was declared in A.
       didWrite("A.dart", EXTENSION_TIMESTAMP);
       didWrite("B.dart", EXTENSION_TIMESTAMP);
       didWrite("C.dart", EXTENSION_TIMESTAMP);
       assertAppBuilt();
     }
+    // Wait, because analysis is so fast that may be A will have same time as old artifact.
+    Thread.sleep(5);
     // Remove top-level "foo", so access to "foo" in B should be bound to the super class.
     {
       appSource.setContent("A.dart", "");
       compile();
       // B should be compiled because it also declares "foo", so produces "shadow" conflict.
       // C should be compiled because it has unqualified access which was declared in A.
       didWrite("A.dart", EXTENSION_TIMESTAMP);
       didWrite("B.dart", EXTENSION_TIMESTAMP);
       didWrite("C.dart", EXTENSION_TIMESTAMP);
     }
@@ skipping 260 matching lines @@
   private void didWrite(String sourceName, String extension) {
     String spec = sourceName + "/" + extension;
     assertTrue("Expected write: " + spec, provider.writes.contains(spec));
   }
 
   private void didNotWrite(String sourceName, String extension) {
     String spec = sourceName + "/" + extension;
     assertFalse("Didn't expect write: " + spec, provider.writes.contains(spec));
   }
 }