mockit.coverage.dataItems.PerFileDataCoverage Maven / Gradle / Ivy

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JMockit Coverage is a code coverage tool with several metrics (line, path, data) capable of generating HTML reports. It is designed with ease of use in mind, avoiding the need for complex configuration. Instead, smart (but overridable) defaults are employed, such as the selection of which classes to consider for coverage, and where to find sources files for report generation.

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/*
 * Copyright (c) 2006-2015 Rogério Liesenfeld
 * This file is subject to the terms of the MIT license (see LICENSE.txt).
 */
package mockit.coverage.dataItems;

import java.io.*;
import java.util.*;
import java.util.Map.*;
import javax.annotation.*;

import mockit.coverage.*;
import mockit.coverage.data.*;

public final class PerFileDataCoverage implements PerFileCoverage
{
   private static final long serialVersionUID = -4561686103982673490L;

   @Nonnull public final List allFields = new ArrayList(2);
   @Nonnull public final Map staticFieldsData = new LinkedHashMap();
   @Nonnull public final Map instanceFieldsData = new LinkedHashMap();

   private transient int coveredDataItems = -1;

   private void readObject(@Nonnull ObjectInputStream in) throws IOException, ClassNotFoundException
   {
      coveredDataItems = -1;
      in.defaultReadObject();
   }

   public void addField(@Nonnull String className, @Nonnull String fieldName, boolean isStatic)
   {
      String classAndField = className + '.' + fieldName;
      allFields.add(classAndField);

      if (isStatic) {
         staticFieldsData.put(classAndField, new StaticFieldData());
      }
      else {
         instanceFieldsData.put(classAndField, new InstanceFieldData());
      }
   }

   public boolean isFieldWithCoverageData(@Nonnull String classAndFieldNames)
   {
      return
         instanceFieldsData.containsKey(classAndFieldNames) ||
         staticFieldsData.containsKey(classAndFieldNames);
   }

   public void registerAssignmentToStaticField(@Nonnull String classAndFieldNames)
   {
      StaticFieldData staticData = getStaticFieldData(classAndFieldNames);

      if (staticData != null) {
         staticData.registerAssignment();
      }
   }

   @Nullable public StaticFieldData getStaticFieldData(@Nonnull String classAndFieldNames)
   {
      return staticFieldsData.get(classAndFieldNames);
   }

   public void registerReadOfStaticField(@Nonnull String classAndFieldNames)
   {
      StaticFieldData staticData = getStaticFieldData(classAndFieldNames);

      if (staticData != null) {
         staticData.registerRead();
      }
   }

   public void registerAssignmentToInstanceField(@Nonnull Object instance, @Nonnull String classAndFieldNames)
   {
      InstanceFieldData instanceData = getInstanceFieldData(classAndFieldNames);

      if (instanceData != null) {
         instanceData.registerAssignment(instance);
      }
   }

   @Nullable public InstanceFieldData getInstanceFieldData(@Nonnull String classAndFieldNames)
   {
      return instanceFieldsData.get(classAndFieldNames);
   }

   public void registerReadOfInstanceField(@Nonnull Object instance, @Nonnull String classAndFieldNames)
   {
      InstanceFieldData instanceData = getInstanceFieldData(classAndFieldNames);

      if (instanceData != null) {
         instanceData.registerRead(instance);
      }
   }

   public boolean hasFields() { return !allFields.isEmpty(); }

   public boolean isCovered(@Nonnull String classAndFieldNames)
   {
      InstanceFieldData instanceData = getInstanceFieldData(classAndFieldNames);

      if (instanceData != null && instanceData.isCovered()) {
         return true;
      }

      StaticFieldData staticData = getStaticFieldData(classAndFieldNames);

      return staticData != null && staticData.isCovered();
   }

   @Override
   public int getTotalItems()
   {
      return staticFieldsData.size() + instanceFieldsData.size();
   }

   @Override
   public int getCoveredItems()
   {
      if (coveredDataItems >= 0) {
         return coveredDataItems;
      }

      coveredDataItems = 0;

      for (StaticFieldData staticData : staticFieldsData.values()) {
         if (staticData.isCovered()) {
            coveredDataItems++;
         }
      }

      for (InstanceFieldData instanceData : instanceFieldsData.values()) {
         if (instanceData.isCovered()) {
            coveredDataItems++;
         }
      }

      return coveredDataItems;
   }

   @Override
   public int getCoveragePercentage()
   {
      int totalFields = getTotalItems();

      if (totalFields == 0) {
         return -1;
      }

      return CoveragePercentage.calculate(getCoveredItems(), totalFields);
   }

   public void mergeInformation(@Nonnull PerFileDataCoverage previousInfo)
   {
      addInfoFromPreviousTestRun(staticFieldsData, previousInfo.staticFieldsData);
      addFieldsFromPreviousTestRunIfAbsent(staticFieldsData, previousInfo.staticFieldsData);

      addInfoFromPreviousTestRun(instanceFieldsData, previousInfo.instanceFieldsData);
      addFieldsFromPreviousTestRunIfAbsent(instanceFieldsData, previousInfo.instanceFieldsData);
   }

   private static  void addInfoFromPreviousTestRun(
      @Nonnull Map currentInfo, @Nonnull Map previousInfo)
   {
      for (Entry nameAndInfo : currentInfo.entrySet()) {
         String fieldName = nameAndInfo.getKey();
         FieldData previousFieldInfo = previousInfo.get(fieldName);

         if (previousFieldInfo != null) {
            FieldData fieldInfo = nameAndInfo.getValue();
            fieldInfo.addCountsFromPreviousTestRun(previousFieldInfo);
         }
      }
   }

   private static  void addFieldsFromPreviousTestRunIfAbsent(
      @Nonnull Map currentInfo, @Nonnull Map previousInfo)
   {
      for (Entry nameAndInfo : previousInfo.entrySet()) {
         String fieldName = nameAndInfo.getKey();

         if (!currentInfo.containsKey(fieldName)) {
            currentInfo.put(fieldName, previousInfo.get(fieldName));
         }
      }
   }
}