mockit.coverage.reporting.dataCoverage.DataCoverageOutput Maven / Gradle / Ivy

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JMockit is a Java toolkit for automated developer testing. It contains mocking/faking APIs and a code coverage tool, supporting both JUnit and TestNG. The mocking APIs allow all kinds of Java code, without testability restrictions, to be tested in isolation from selected dependencies.

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/*
 * Copyright (c) 2006 JMockit developers
 * This file is subject to the terms of the MIT license (see LICENSE.txt).
 */
package mockit.coverage.reporting.dataCoverage;

import javax.annotation.*;

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

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

   public DataCoverageOutput(@Nonnull 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(@Nonnull 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(@Nonnull FieldData fieldData) {
      openingTag.append("Reads: ").append(fieldData.getReadCount());
      openingTag.append(" Writes: ").append(fieldData.getWriteCount());
   }
}