mockit.internal.expectations.mocking.MockingConfiguration Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of jmockit Show documentation

JMockit is a Java toolkit for developer (unit/integration) testing. It contains mocking APIs and other tools, 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.

There is a newer version: 1.7

Show newest version

/*
 * Copyright (c) 2006-2013 Rogério Liesenfeld
 * This file is subject to the terms of the MIT license (see LICENSE.txt).
 */
package mockit.internal.expectations.mocking;

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

import org.jetbrains.annotations.*;

import mockit.external.asm4.*;

final class MockingConfiguration
{
   @NotNull private final List filtersToApply;

   MockingConfiguration(@NotNull String[] filters)
   {
      filtersToApply = parseMockFilters(filters);
   }

   @NotNull private List parseMockFilters(@NotNull String[] mockFilters)
   {
      List filters = new ArrayList(mockFilters.length);

      for (String mockFilter : mockFilters) {
         filters.add(new RegexMockFilter(mockFilter));
      }

      return filters;
   }

   boolean matchesFilters(@NotNull String name, @NotNull String desc)
   {
      for (RegexMockFilter filter : filtersToApply) {
         if (filter.matches(name, desc)) {
            return true;
         }
      }

      return false;
   }

   private static final class RegexMockFilter
   {
      private static final Pattern CONSTRUCTOR_NAME_REGEX = Pattern.compile("");
      private static final String[] ANY_PARAMS = {};

      @NotNull private final Pattern nameRegex;
      @Nullable private final String[] paramTypeNames;

      private RegexMockFilter(@NotNull String filter)
      {
         int lp = filter.indexOf('(');
         int rp = filter.indexOf(')');

         if (lp < 0 && rp >= 0 || lp >= 0 && lp >= rp) {
            throw new IllegalArgumentException("Invalid filter: " + filter);
         }

         if (lp == 0) {
            nameRegex = CONSTRUCTOR_NAME_REGEX;
         }
         else {
            nameRegex = Pattern.compile(lp < 0 ? filter : filter.substring(0, lp));
         }

         paramTypeNames = parseParameterTypes(filter, lp, rp);
      }

      @Nullable private String[] parseParameterTypes(@NotNull String filter, int lp, int rp)
      {
         if (lp < 0) {
            return ANY_PARAMS;
         }
         else if (lp == rp - 1) {
            return null;
         }

         String[] typeNames = filter.substring(lp + 1, rp).split(",");

         for (int i = 0; i < typeNames.length; i++) {
            typeNames[i] = typeNames[i].trim();
         }

         return typeNames;
      }

      boolean matches(@NotNull String name, @NotNull String desc)
      {
         if (!nameRegex.matcher(name).matches()) {
            return false;
         }

         if (paramTypeNames == ANY_PARAMS) {
            return true;
         }
         else if (paramTypeNames == null) {
            return desc.charAt(1) == ')';
         }

         Type[] argTypes = Type.getArgumentTypes(desc);

         if (argTypes.length != paramTypeNames.length) {
            return false;
         }

         for (int i = 0; i < paramTypeNames.length; i++) {
            Type argType = argTypes[i];
            String paramTypeName = argType.getClassName();
            assert paramTypeName != null;

            if (!paramTypeName.endsWith(paramTypeNames[i])) {
               return false;
            }
         }

         return true;
      }
   }
}