mockit.coverage.reporting.pathCoverage.PathCoverageOutput 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.pathCoverage;

import java.io.*;
import java.util.*;

import org.jetbrains.annotations.*;

import mockit.coverage.*;
import mockit.coverage.paths.*;

public final class PathCoverageOutput
{
   @NotNull private final PrintWriter output;
   @NotNull private final PathCoverageFormatter pathFormatter;
   @NotNull private final Iterator nextMethod;

   // Helper fields:
   @Nullable private MethodCoverageData currentMethod;

   public PathCoverageOutput(@NotNull PrintWriter output, @NotNull Collection methods)
   {
      this.output = output;
      pathFormatter = new PathCoverageFormatter(output);
      nextMethod = methods.iterator();
      moveToNextMethod();
   }

   private void moveToNextMethod()
   {
      currentMethod = nextMethod.hasNext() ? nextMethod.next() : null;
   }

   public void writePathCoverageInfoIfLineStartsANewMethodOrConstructor(int lineNumber)
   {
      if (currentMethod != null && lineNumber == currentMethod.getFirstLineInBody()) {
         writePathCoverageInformationForMethod(currentMethod);
         moveToNextMethod();
      }
   }

   private void writePathCoverageInformationForMethod(@NotNull MethodCoverageData methodData)
   {
      List paths = methodData.getPaths();

      if (paths.size() > 1) {
         writeHeaderForAllPaths(methodData);
         pathFormatter.writeInformationForEachPath(paths);
         writeFooterForAllPaths();
      }
   }

   private void writeHeaderForAllPaths(@NotNull MethodCoverageData methodData)
   {
      int coveredPaths = methodData.getCoveredPaths();
      int totalPaths = methodData.getTotalPaths();

      output.println("    ");
      output.write("      ");
      output.print(methodData.getExecutionCount());
      output.println("");
      output.println("      ");
      output.write("        Path coverage: ");
      output.print(coveredPaths);
      output.print('/');
      output.print(totalPaths);
      output.println("");
   }

   private void writeFooterForAllPaths()
   {
      output.println("      ");
      output.println("    ");
   }
}