o Added validation error upon bad scope for plugin dependencies

git-svn-id: https://svn.apache.org/repos/asf/maven/components/trunk@808182 13f79535-47bb-0310-9956-ffa450edef68

maven-model-builder/src/main/java/org/apache/maven/model/validation/DefaultModelValidator.java

@@ -20,6 +20,7 @@ package org.apache.maven.model.validation;
  */
 
 import java.io.File;
+import java.util.Arrays;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
@@ -227,6 +228,9 @@ public class DefaultModelValidator
             boolean warnOnMissingPluginVersion =
                 request.getValidationLevel() < ModelBuildingRequest.VALIDATION_LEVEL_MAVEN_3_1;
 
+            boolean warnOnBadPluginDependencyScope =
+                request.getValidationLevel() < ModelBuildingRequest.VALIDATION_LEVEL_MAVEN_3_0;
+
             Build build = model.getBuild();
             if ( build != null )
             {
@@ -244,6 +248,13 @@ public class DefaultModelValidator
 
                     validateBoolean( "build.plugins.plugin.extensions", problems, warnOnBadBoolean, p.getExtensions(),
                                      p.getKey() );
+
+                    for ( Dependency d : p.getDependencies() )
+                    {
+                        validateEnum( "build.plugins.plugin[" + p.getKey() + "].dependencies.dependency.scope",
+                                      problems, warnOnBadPluginDependencyScope, d.getScope(), d.getManagementKey(),
+                                      "compile", "runtime", "system" );
+                    }
                 }
 
                 validateResources( problems, build.getResources(), "build.resources.resource", request );
@@ -542,6 +553,33 @@ public class DefaultModelValidator
         return false;
     }
 
+    private boolean validateEnum( String fieldName, ModelProblemCollector problems, boolean warning, String string,
+                                  String sourceHint, String... validValues )
+    {
+        if ( string == null || string.length() <= 0 )
+        {
+            return true;
+        }
+
+        List<String> values = Arrays.asList( validValues );
+
+        if ( values.contains( string ) )
+        {
+            return true;
+        }
+
+        if ( sourceHint != null )
+        {
+            addViolation( problems, warning, "'" + fieldName + "' must be one of " + values + " for " + sourceHint );
+        }
+        else
+        {
+            addViolation( problems, warning, "'" + fieldName + "' must be one of " + values );
+        }
+
+        return false;
+    }
+
     private void addViolation( ModelProblemCollector problems, boolean warning, String message )
     {
         if ( warning )

maven-model-builder/src/test/java/org/apache/maven/model/validation/DefaultModelValidatorTest.java

@@ -338,4 +338,18 @@ public class DefaultModelValidatorTest
         assertEquals( "'build.testResources.testResource.directory' is missing.", result.getErrors().get( 1 ) );
     }
 
+    public void testBadPluginDependencyScope()
+        throws Exception
+    {
+        SimpleProblemCollector result = validate( "bad-plugin-dependency-scope.xml" );
+
+        assertViolations( result, 3, 0 );
+
+        assertTrue( result.getErrors().get( 0 ).contains( "test:d" ) );
+
+        assertTrue( result.getErrors().get( 1 ).contains( "test:e" ) );
+
+        assertTrue( result.getErrors().get( 2 ).contains( "test:f" ) );
+    }
+
 }

maven-model-builder/src/test/resources/poms/validation/bad-plugin-dependency-scope.xml

@@ -0,0 +1,70 @@
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
+<project>
+  <modelVersion>4.0.0</modelVersion>
+  <artifactId>aid</artifactId>
+  <groupId>gid</groupId>
+  <version>0.1</version>
+  <build>
+    <plugins>
+      <plugin>
+        <artifactId>maven-it-plugin</artifactId>
+        <version>0.1</version>
+        <dependencies>
+          <dependency>
+            <groupId>test</groupId>
+            <artifactId>a</artifactId>
+            <version>0.2</version>
+          </dependency>
+          <dependency>
+            <groupId>test</groupId>
+            <artifactId>b</artifactId>
+            <version>0.2</version>
+            <scope>compile</scope>
+          </dependency>
+          <dependency>
+            <groupId>test</groupId>
+            <artifactId>c</artifactId>
+            <version>0.2</version>
+            <scope>runtime</scope>
+          </dependency>
+          <dependency>
+            <groupId>test</groupId>
+            <artifactId>d</artifactId>
+            <version>0.2</version>
+            <scope>test</scope>
+          </dependency>
+          <dependency>
+            <groupId>test</groupId>
+            <artifactId>e</artifactId>
+            <version>0.2</version>
+            <scope>provided</scope>
+          </dependency>
+          <dependency>
+            <groupId>test</groupId>
+            <artifactId>f</artifactId>
+            <version>0.2</version>
+            <scope>import</scope>
+          </dependency>
+        </dependencies>
+      </plugin>
+    </plugins>
+  </build>
+</project>