Fix project completion in the beginning

idea/src/org/jetbrains/jet/plugin/completion/JetPackagesContributor.java

@@ -29,6 +29,7 @@ import org.jetbrains.jet.lang.psi.JetFile;
 import org.jetbrains.jet.lang.psi.JetNamespaceHeader;
 import org.jetbrains.jet.lang.resolve.BindingContext;
 import org.jetbrains.jet.plugin.project.WholeProjectAnalyzerFacade;
+import org.jetbrains.jet.plugin.references.JetSimpleNameReference;
 
 /**
  * Performs completion in package directive. Should suggest only packages and avoid showing fake package produced by
@@ -59,20 +60,16 @@ public class JetPackagesContributor extends CompletionContributor {
 
                        final PsiReference ref = parameters.getPosition().getContainingFile().findReferenceAt(parameters.getOffset());
 
-                       if (ref != null) {
+                       if (ref instanceof JetSimpleNameReference) {
+                           JetSimpleNameReference simpleNameReference = (JetSimpleNameReference)ref;
 
-                           // For package there will be a wrong prefix matcher with the whole package directive as prefix
-                           PsiElement nameIdentifier = namespaceHeader.getNameIdentifier();
-                           if (nameIdentifier == null) {
+                           String name = simpleNameReference.getExpression().getText();
+                           if (name == null) {
                                return;
                            }
 
-                           if (!(nameIdentifier.getTextOffset() <= parameters.getOffset())) {
-                               return;
-                           }
-
-                           int prefixLength = parameters.getOffset() - nameIdentifier.getTextOffset();
-                           result = result.withPrefixMatcher(new PlainPrefixMatcher(nameIdentifier.getText().substring(0, prefixLength)));
+                           int prefixLength = parameters.getOffset() - simpleNameReference.getExpression().getTextOffset();
+                           result = result.withPrefixMatcher(new PlainPrefixMatcher(name.substring(0, prefixLength)));
 
                            BindingContext bindingContext = WholeProjectAnalyzerFacade.analyzeProjectWithCacheOnAFile(
                                    (JetFile)namespaceHeader.getContainingFile())

idea/testData/completion/basic/InPackageBegin.kt

@@ -0,0 +1,5 @@
+package kttesting<caret>.util
+
+// Test that there won't be package with completion fake suffix
+
+// NUMBER: 0

idea/tests/org/jetbrains/jet/completion/JetBasicCompletionTest.java

@@ -105,6 +105,10 @@ public class JetBasicCompletionTest extends JetCompletionTestBase {
         doTest();
     }
 
+    public void testInPackageBegin() {
+        doTest();
+    }
+
     public void testInTypeAnnotation() {
         doTest();
     }

idea/tests/org/jetbrains/jet/completion/JetCompletionTestBase.java

@@ -64,13 +64,22 @@ public abstract class JetCompletionTestBase extends LightCompletionTestCase {
                 ExpectedCompletionUtils.CompletionProposal[] unexpected = completionUtils.itemsShouldAbsent(fileText);
                 Integer itemsNumber = completionUtils.getExpectedNumber(fileText);
 
-                assertTrue("Should be some assertions about completion", expected.length != 0 || unexpected.length != 0 || itemsNumber != null);
+                assertTrue("Should be some assertions about completion",
+                           expected.length != 0 || unexpected.length != 0 || itemsNumber != null);
+
+                if (myItems == null) {
+                    myItems = new LookupElement[0];
+                }
 
                 ExpectedCompletionUtils.assertContainsRenderedItems(expected, myItems);
                 ExpectedCompletionUtils.assertNotContainsRenderedItems(unexpected, myItems);
 
                 if (itemsNumber != null) {
-                    assertEquals("Invalid number of completion items", itemsNumber.intValue(), myItems.length);
+                    assertEquals(
+                            String.format(
+                                    "Invalid number of completion items: %s",
+                                    ExpectedCompletionUtils.listToString(ExpectedCompletionUtils.getItemsInformation(myItems))),
+                            itemsNumber.intValue(), myItems.length);
                 }
             }
             finally {
@@ -78,9 +87,8 @@ public abstract class JetCompletionTestBase extends LightCompletionTestCase {
                     ConfigRuntimeUtil.unConfigureKotlinRuntime(getModule(), getProjectJDK());
                 }
             }
-
-
-        } catch (Exception e) {
+        }
+        catch (Exception e) {
             throw new AssertionError(e);
         }
     }
@@ -102,7 +110,7 @@ public abstract class JetCompletionTestBase extends LightCompletionTestCase {
     protected void complete(final int time) {
         new CodeCompletionHandlerBase(type, false, false, true).invokeCompletion(getProject(), getEditor(), time, false);
 
-        LookupImpl lookup = (LookupImpl) LookupManager.getActiveLookup(myEditor);
+        LookupImpl lookup = (LookupImpl)LookupManager.getActiveLookup(myEditor);
         myItems = lookup == null ? null : lookup.getItems().toArray(LookupElement.EMPTY_ARRAY);
         myPrefix = lookup == null ? null : lookup.itemPattern(lookup.getItems().get(0));
     }