mockit.coverage.reporting.ListOfCallPoints 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.reporting;

import java.util.*;
import java.util.regex.*;

import org.jetbrains.annotations.*;

import mockit.coverage.*;

public final class ListOfCallPoints
{
   @NotNull private static final String EOL = System.getProperty("line.separator");
   private static final Pattern LESS_THAN_CHAR = Pattern.compile("<");

   @NotNull private final StringBuilder content;

   public ListOfCallPoints() { content = new StringBuilder(100); }

   public void insertListOfCallPoints(@Nullable List callPoints)
   {
      if (content.length() == 0) {
         content.append(EOL).append("      ");
      }

      content.append("  ");

      if (callPoints == null) {
         content.append("").append(EOL).append("      ");
         return;
      }

      content.append(EOL);

      CallPoint currentCP = callPoints.get(0);
      appendTestMethod(currentCP.getStackTraceElement());
      appendRepetitionCountIfNeeded(currentCP);

      for (int i = 1, n = callPoints.size(); i < n; i++) {
         CallPoint nextCP = callPoints.get(i);
         StackTraceElement ste = nextCP.getStackTraceElement();

         if (nextCP.isSameTestMethod(currentCP)) {
            content.append(", ").append(ste.getLineNumber());
         }
         else {
            content.append("").append(EOL);
            appendTestMethod(ste);
         }

         appendRepetitionCountIfNeeded(nextCP);
         currentCP = nextCP;
      }

      content.append("").append(EOL).append("        ").append(EOL).append("      ");
   }

   private void appendTestMethod(@NotNull StackTraceElement current)
   {
      content.append("          ");
      content.append(current.getClassName()).append('#');
      content.append(LESS_THAN_CHAR.matcher(current.getMethodName()).replaceFirst("<")).append(": ");
      content.append(current.getLineNumber());
   }

   private void appendRepetitionCountIfNeeded(@NotNull CallPoint callPoint)
   {
      int repetitionCount = callPoint.getRepetitionCount();

      if (repetitionCount > 0) {
         content.append('x').append(1 + repetitionCount);
      }
   }

   @NotNull
   public String getContents()
   {
      String result = content.toString();
      content.setLength(0);
      return result;
   }
}