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

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

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

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

   // Helper fields:
   @Nullable private MethodCoverageData currentMethod;

   public PathCoverageOutput(@Nonnull PrintWriter output, @Nonnull 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(@Nonnull MethodCoverageData methodData) {
      List paths = methodData.getPaths();

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

   private void writeHeaderForAllPaths(@Nonnull 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("    ");
   }
}