mockit.coverage.reporting.dataCoverage.DataCoverageOutput 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) 2006-2013 Rogério Liesenfeld
 * This file is subject to the terms of the MIT license (see LICENSE.txt).
 */
package mockit.coverage.reporting.dataCoverage;

import org.jetbrains.annotations.*;

import mockit.coverage.dataItems.*;
import mockit.coverage.reporting.parsing.*;

public final class DataCoverageOutput
{
   @NotNull private final StringBuilder openingTag;
   @NotNull private final PerFileDataCoverage coverageInfo;
   private int nextField;
   @Nullable private String classAndFieldNames;
   @Nullable private String className;
   @Nullable private String fieldName;

   public DataCoverageOutput(@NotNull PerFileDataCoverage coverageInfo)
   {
      openingTag = new StringBuilder(50);
      this.coverageInfo = coverageInfo;
      moveToNextField();
   }

   private void moveToNextField()
   {
      if (nextField >= coverageInfo.allFields.size()) {
         classAndFieldNames = null;
         className = null;
         fieldName = null;
         return;
      }

      classAndFieldNames = coverageInfo.allFields.get(nextField);
      nextField++;

      int p = classAndFieldNames.indexOf('.');
      className = classAndFieldNames.substring(0, p);
      fieldName = classAndFieldNames.substring(p + 1);
   }

   public void writeCoverageInfoIfLineStartsANewFieldDeclaration(@NotNull FileParser fileParser)
   {
      if (classAndFieldNames != null) {
         assert className != null;

         if (className.equals(fileParser.getCurrentlyPendingClass())) {
            LineElement initialLineElement = fileParser.lineParser.getInitialElement();

            assert fieldName != null;
            LineElement elementWithFieldName = initialLineElement.findWord(fieldName);

            if (elementWithFieldName != null) {
               buildOpeningTagForFieldWrapper();
               elementWithFieldName.wrapText(openingTag.toString(), "");
               moveToNextField();
            }
         }
      }
   }

   private void buildOpeningTagForFieldWrapper()
   {
      openingTag.setLength(0);
      openingTag.append("");
   }

   private void appendAccessCounts(@NotNull FieldData fieldData)
   {
      openingTag.append("Reads: ").append(fieldData.getReadCount());
      openingTag.append(" Writes: ").append(fieldData.getWriteCount());
   }
}