[gradle] add configurations test

plugins/gradle/java/intellij.gradle.java.tests.iml

@@ -21,5 +21,6 @@
     <orderEntry type="module" module-name="intellij.maven.server" scope="TEST" />
     <orderEntry type="library" scope="TEST" name="mockito" level="project" />
     <orderEntry type="module" module-name="intellij.java.execution.impl" scope="TEST" />
+    <orderEntry type="module" module-name="intellij.groovy" scope="TEST" />
   </component>
 </module>

plugins/gradle/java/testSources/dsl/GradleConfigurationsTest.groovy

@@ -0,0 +1,104 @@
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
+package org.jetbrains.plugins.gradle.dsl
+
+import groovy.transform.CompileStatic
+import org.jetbrains.plugins.gradle.highlighting.GradleHighlightingBaseTest
+import org.jetbrains.plugins.groovy.lang.psi.api.statements.blocks.GrClosableBlock
+import org.jetbrains.plugins.groovy.lang.psi.api.statements.expressions.GrMethodCall
+import org.jetbrains.plugins.groovy.lang.psi.api.statements.expressions.GrReferenceExpression
+import org.jetbrains.plugins.groovy.util.ResolveTest
+import org.junit.Test
+
+import static org.jetbrains.plugins.gradle.service.resolve.GradleCommonClassNames.GRADLE_API_CONFIGURATION
+import static org.jetbrains.plugins.gradle.service.resolve.GradleCommonClassNames.GRADLE_API_CONFIGURATION_CONTAINER
+import static org.jetbrains.plugins.groovy.lang.resolve.delegatesTo.GrDelegatesToUtilKt.getDelegatesToInfo
+
+@CompileStatic
+class GradleConfigurationsTest extends GradleHighlightingBaseTest implements ResolveTest {
+
+  @Test
+  void 'configurations closure delegate'() {
+    doTest('configurations { <caret> }') {
+      def closure = elementUnderCaret(GrClosableBlock)
+      def delegatesToInfo = getDelegatesToInfo(closure)
+      assert delegatesToInfo.typeToDelegate.equalsToText(GRADLE_API_CONFIGURATION_CONTAINER)
+      assert delegatesToInfo.strategy == 1
+    }
+  }
+
+  @Test
+  void 'configuration via unqualified property reference'() {
+    doTest('configurations { <caret>foo }') {
+      def ref = elementUnderCaret(GrReferenceExpression)
+      assert ref.resolve() != null
+      assert ref.type.equalsToText(GRADLE_API_CONFIGURATION)
+    }
+  }
+
+  @Test
+  void 'configuration via unqualified method call'() {
+    doTest('configurations { <caret>foo {} }') {
+      def call = elementUnderCaret(GrMethodCall)
+      assert call.resolveMethod() != null
+      assert call.type.equalsToText(GRADLE_API_CONFIGURATION)
+    }
+  }
+
+  @Test
+  void 'configuration closure delegate in unqualified method call'() {
+    doTest('configurations { foo { <caret> } }') {
+      def closure = elementUnderCaret(GrClosableBlock)
+      def delegatesToInfo = getDelegatesToInfo(closure)
+      assert delegatesToInfo.typeToDelegate.equalsToText(GRADLE_API_CONFIGURATION)
+      assert delegatesToInfo.strategy == 1
+    }
+  }
+
+  @Test
+  void 'configuration member via unqualified method call closure delegate'() {
+    doTest('configurations { foo { <caret>extendsFrom() } }') {
+      def call = elementUnderCaret(GrMethodCall)
+      def method = call.resolveMethod()
+      assert method != null
+      assert method.containingClass.qualifiedName == GRADLE_API_CONFIGURATION
+    }
+  }
+
+  @Test
+  void 'configuration via qualified property reference'() {
+    doTest('configurations { foo }; configurations.<caret>foo') {
+      def ref = elementUnderCaret(GrReferenceExpression)
+      assert ref.resolve() != null
+      assert ref.type.equalsToText(GRADLE_API_CONFIGURATION)
+    }
+  }
+
+  @Test
+  void 'configuration via qualified method call'() {
+    doTest('configurations { foo }; configurations.<caret>foo {}') {
+      def call = elementUnderCaret(GrMethodCall)
+      assert call.resolveMethod() != null
+      assert call.type.equalsToText(GRADLE_API_CONFIGURATION)
+    }
+  }
+
+  @Test
+  void 'configuration closure delegate in qualified method call'() {
+    doTest('configurations { foo }; configurations.foo { <caret> }') {
+      def closure = elementUnderCaret(GrClosableBlock)
+      def delegatesToInfo = getDelegatesToInfo(closure)
+      assert delegatesToInfo.typeToDelegate.equalsToText(GRADLE_API_CONFIGURATION)
+      assert delegatesToInfo.strategy == 1
+    }
+  }
+
+  @Test
+  void 'configuration member via qualified method call closure delegate'() {
+    doTest('configurations { foo }; configurations.foo { <caret>extendsFrom() }') {
+      def call = elementUnderCaret(GrMethodCall)
+      def method = call.resolveMethod()
+      assert method != null
+      assert method.containingClass.qualifiedName == GRADLE_API_CONFIGURATION
+    }
+  }
+}

plugins/gradle/java/testSources/highlighting/GradleHighlightingBaseTest.groovy

@@ -55,6 +55,13 @@ abstract class GradleHighlightingBaseTest extends GradleImportingTestCase {
     }
   }
 
+  void doTest(@NotNull String text, Closure test) {
+    VirtualFile vFile = createProjectSubFile 'build.gradle', text
+    fixture.configureFromExistingVirtualFile(vFile)
+    importProject()
+    ReadAction.run(test)
+  }
+
   @Override
   void tearDownFixtures() {
     fixture.tearDown()