BooleanExpressionComplexityCheck.java

////////////////////////////////////////////////////////////////////////////////
// checkstyle: Checks Java source code for adherence to a set of rules.
// Copyright (C) 2001-2017 the original author or authors.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
////////////////////////////////////////////////////////////////////////////////

package com.puppycrawl.tools.checkstyle.checks.metrics;

import java.util.ArrayDeque;
import java.util.Deque;

import com.puppycrawl.tools.checkstyle.api.AbstractCheck;
import com.puppycrawl.tools.checkstyle.api.DetailAST;
import com.puppycrawl.tools.checkstyle.api.TokenTypes;
import com.puppycrawl.tools.checkstyle.utils.CheckUtils;

/**
 * Restricts nested boolean operators (&amp;&amp;, ||, &amp;, | and ^) to
 * a specified depth (default = 3).
 * Note: &amp;, | and ^ are not checked if they are part of constructor or
 * method call because they can be applied to non boolean variables and
 * Checkstyle does not know types of methods from different classes.
 *
 * @author <a href="mailto:simon@redhillconsulting.com.au">Simon Harris</a>
 * @author o_sukhodolsky
 */
public final class BooleanExpressionComplexityCheck extends AbstractCheck {

    /**
     * A key is pointing to the warning message text in "messages.properties"
     * file.
     */
    public static final String MSG_KEY = "booleanExpressionComplexity";

    /** Default allowed complexity. */
    private static final int DEFAULT_MAX = 3;

    /** Stack of contexts. */
    private final Deque<Context> contextStack = new ArrayDeque<>();
    /** Maximum allowed complexity. */
    private int max;
    /** Current context. */
    private Context context = new Context(false);

    /** Creates new instance of the check. */
    public BooleanExpressionComplexityCheck() {
        max = DEFAULT_MAX;
    }

    @Override
    public int[] getDefaultTokens() {
        return new int[] {
            TokenTypes.CTOR_DEF,
            TokenTypes.METHOD_DEF,
            TokenTypes.EXPR,
            TokenTypes.LAND,
            TokenTypes.BAND,
            TokenTypes.LOR,
            TokenTypes.BOR,
            TokenTypes.BXOR,
        };
    }

    @Override
    public int[] getRequiredTokens() {
        return new int[] {
            TokenTypes.CTOR_DEF,
            TokenTypes.METHOD_DEF,
            TokenTypes.EXPR,
        };
    }

    @Override
    public int[] getAcceptableTokens() {
        return new int[] {
            TokenTypes.CTOR_DEF,
            TokenTypes.METHOD_DEF,
            TokenTypes.EXPR,
            TokenTypes.LAND,
            TokenTypes.BAND,
            TokenTypes.LOR,
            TokenTypes.BOR,
            TokenTypes.BXOR,
        };
    }

    /**
     * Setter for maximum allowed complexity.
     * @param max new maximum allowed complexity.
     */
    public void setMax(int max) {
        this.max = max;
    }

    @Override
    public void visitToken(DetailAST ast) {
        switch (ast.getType()) {
            case TokenTypes.CTOR_DEF:
            case TokenTypes.METHOD_DEF:
                visitMethodDef(ast);
                break;
            case TokenTypes.EXPR:
                visitExpr();
                break;
            case TokenTypes.BOR:
                if (!isPipeOperator(ast) && !isPassedInParameter(ast)) {
                    context.visitBooleanOperator();
                }
                break;
            case TokenTypes.BAND:
            case TokenTypes.BXOR:
                if (!isPassedInParameter(ast)) {
                    context.visitBooleanOperator();
                }
                break;
            case TokenTypes.LAND:
            case TokenTypes.LOR:
                context.visitBooleanOperator();
                break;
            default:
                throw new IllegalArgumentException("Unknown type: " + ast);
        }
    }

    /**
     * Checks if logical operator is part of constructor or method call.
     * @param logicalOperator logical operator
     * @return true if logical operator is part of constructor or method call
     */
    private static boolean isPassedInParameter(DetailAST logicalOperator) {
        return logicalOperator.getParent().getType() == TokenTypes.EXPR
            && logicalOperator.getParent().getParent().getType() == TokenTypes.ELIST;
    }

    /**
     * Checks if {@link TokenTypes#BOR binary OR} is applied to exceptions
     * in
     * <a href="http://docs.oracle.com/javase/specs/jls/se8/html/jls-14.html#jls-14.20">
     * multi-catch</a> (pipe-syntax).
     * @param binaryOr {@link TokenTypes#BOR binary or}
     * @return true if binary or is applied to exceptions in multi-catch.
     */
    private static boolean isPipeOperator(DetailAST binaryOr) {
        return binaryOr.getParent().getType() == TokenTypes.TYPE;
    }

    @Override
    public void leaveToken(DetailAST ast) {
        switch (ast.getType()) {
            case TokenTypes.CTOR_DEF:
            case TokenTypes.METHOD_DEF:
                leaveMethodDef();
                break;
            case TokenTypes.EXPR:
                leaveExpr(ast);
                break;
            default:
                // Do nothing
        }
    }

    /**
     * Creates new context for a given method.
     * @param ast a method we start to check.
     */
    private void visitMethodDef(DetailAST ast) {
        contextStack.push(context);
        final boolean check = !CheckUtils.isEqualsMethod(ast);
        context = new Context(check);
    }

    /** Removes old context. */
    private void leaveMethodDef() {
        context = contextStack.pop();
    }

    /** Creates and pushes new context. */
    private void visitExpr() {
        contextStack.push(context);
        context = new Context(context.isChecking());
    }

    /**
     * Restores previous context.
     * @param ast expression we leave.
     */
    private void leaveExpr(DetailAST ast) {
        context.checkCount(ast);
        context = contextStack.pop();
    }

    /**
     * Represents context (method/expression) in which we check complexity.
     *
     * @author <a href="mailto:simon@redhillconsulting.com.au">Simon Harris</a>
     * @author o_sukhodolsky
     */
    private class Context {
        /**
         * Should we perform check in current context or not.
         * Usually false if we are inside equals() method.
         */
        private final boolean checking;
        /** Count of boolean operators. */
        private int count;

        /**
         * Creates new instance.
         * @param checking should we check in current context or not.
         */
        Context(boolean checking) {
            this.checking = checking;
            count = 0;
        }

        /**
         * Getter for checking property.
         * @return should we check in current context or not.
         */
        public boolean isChecking() {
            return checking;
        }

        /** Increases operator counter. */
        public void visitBooleanOperator() {
            ++count;
        }

        /**
         * Checks if we violates maximum allowed complexity.
         * @param ast a node we check now.
         */
        public void checkCount(DetailAST ast) {
            if (checking && count > max) {
                final DetailAST parentAST = ast.getParent();

                log(parentAST.getLineNo(), parentAST.getColumnNo(),
                    MSG_KEY, count, max);
            }
        }
    }
}

























Active mutators

INCREMENTS_MUTATOR
VOID_METHOD_CALL_MUTATOR
RETURN_VALS_MUTATOR
MATH_MUTATOR
NEGATE_CONDITIONALS_MUTATOR
INVERT_NEGS_MUTATOR
CONDITIONALS_BOUNDARY_MUTATOR

Tests examined

com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest.testNullPointerException(com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest) (11 ms)
com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest.testNoBitwise(com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest) (21 ms)
com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest.test(com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest) (585 ms)

Report generated by PIT 1.2.4

1		////////////////////////////////////////////////////////////////////////////////
2		// checkstyle: Checks Java source code for adherence to a set of rules.
3		// Copyright (C) 2001-2017 the original author or authors.
4		//
5		// This library is free software; you can redistribute it and/or
6		// modify it under the terms of the GNU Lesser General Public
7		// License as published by the Free Software Foundation; either
8		// version 2.1 of the License, or (at your option) any later version.
9		//
10		// This library is distributed in the hope that it will be useful,
11		// but WITHOUT ANY WARRANTY; without even the implied warranty of
12		// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13		// Lesser General Public License for more details.
14		//
15		// You should have received a copy of the GNU Lesser General Public
16		// License along with this library; if not, write to the Free Software
17		// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18		////////////////////////////////////////////////////////////////////////////////
19
20		package com.puppycrawl.tools.checkstyle.checks.metrics;
21
22		import java.util.ArrayDeque;
23		import java.util.Deque;
24
25		import com.puppycrawl.tools.checkstyle.api.AbstractCheck;
26		import com.puppycrawl.tools.checkstyle.api.DetailAST;
27		import com.puppycrawl.tools.checkstyle.api.TokenTypes;
28		import com.puppycrawl.tools.checkstyle.utils.CheckUtils;
29
30		/**
31		* Restricts nested boolean operators (&&, \|\|, &, \| and ^) to
32		* a specified depth (default = 3).
33		* Note: &, \| and ^ are not checked if they are part of constructor or
34		* method call because they can be applied to non boolean variables and
35		* Checkstyle does not know types of methods from different classes.
36		*
37		* @author <a href="mailto:simon@redhillconsulting.com.au">Simon Harris</a>
38		* @author o_sukhodolsky
39		*/
40		public final class BooleanExpressionComplexityCheck extends AbstractCheck {
41
42		/**
43		* A key is pointing to the warning message text in "messages.properties"
44		* file.
45		*/
46		public static final String MSG_KEY = "booleanExpressionComplexity";
47
48		/** Default allowed complexity. */
49		private static final int DEFAULT_MAX = 3;
50
51		/** Stack of contexts. */
52		private final Deque<Context> contextStack = new ArrayDeque<>();
53		/** Maximum allowed complexity. */
54		private int max;
55		/** Current context. */
56		private Context context = new Context(false);
57
58		/** Creates new instance of the check. */
59		public BooleanExpressionComplexityCheck() {
60		max = DEFAULT_MAX;
61		}
62
63		@Override
64		public int[] getDefaultTokens() {
65	1 1. getDefaultTokens : mutated return of Object value for com/puppycrawl/tools/checkstyle/checks/metrics/BooleanExpressionComplexityCheck::getDefaultTokens to ( if (x != null) null else throw new RuntimeException ) → KILLED	return new int[] {
66		TokenTypes.CTOR_DEF,
67		TokenTypes.METHOD_DEF,
68		TokenTypes.EXPR,
69		TokenTypes.LAND,
70		TokenTypes.BAND,
71		TokenTypes.LOR,
72		TokenTypes.BOR,
73		TokenTypes.BXOR,
74		};
75		}
76
77		@Override
78		public int[] getRequiredTokens() {
79	1 1. getRequiredTokens : mutated return of Object value for com/puppycrawl/tools/checkstyle/checks/metrics/BooleanExpressionComplexityCheck::getRequiredTokens to ( if (x != null) null else throw new RuntimeException ) → KILLED	return new int[] {
80		TokenTypes.CTOR_DEF,
81		TokenTypes.METHOD_DEF,
82		TokenTypes.EXPR,
83		};
84		}
85
86		@Override
87		public int[] getAcceptableTokens() {
88	1 1. getAcceptableTokens : mutated return of Object value for com/puppycrawl/tools/checkstyle/checks/metrics/BooleanExpressionComplexityCheck::getAcceptableTokens to ( if (x != null) null else throw new RuntimeException ) → KILLED	return new int[] {
89		TokenTypes.CTOR_DEF,
90		TokenTypes.METHOD_DEF,
91		TokenTypes.EXPR,
92		TokenTypes.LAND,
93		TokenTypes.BAND,
94		TokenTypes.LOR,
95		TokenTypes.BOR,
96		TokenTypes.BXOR,
97		};
98		}
99
100		/**
101		* Setter for maximum allowed complexity.
102		* @param max new maximum allowed complexity.
103		*/
104		public void setMax(int max) {
105		this.max = max;
106		}
107
108		@Override
109		public void visitToken(DetailAST ast) {
110		switch (ast.getType()) {
111		case TokenTypes.CTOR_DEF:
112		case TokenTypes.METHOD_DEF:
113	1 1. visitToken : removed call to com/puppycrawl/tools/checkstyle/checks/metrics/BooleanExpressionComplexityCheck::visitMethodDef → KILLED	visitMethodDef(ast);
114		break;
115		case TokenTypes.EXPR:
116	1 1. visitToken : removed call to com/puppycrawl/tools/checkstyle/checks/metrics/BooleanExpressionComplexityCheck::visitExpr → KILLED	visitExpr();
117		break;
118		case TokenTypes.BOR:
119	2 1. visitToken : negated conditional → KILLED 2. visitToken : negated conditional → KILLED	if (!isPipeOperator(ast) && !isPassedInParameter(ast)) {
120	1 1. visitToken : removed call to com/puppycrawl/tools/checkstyle/checks/metrics/BooleanExpressionComplexityCheck$Context::visitBooleanOperator → KILLED	context.visitBooleanOperator();
121		}
122		break;
123		case TokenTypes.BAND:
124		case TokenTypes.BXOR:
125	1 1. visitToken : negated conditional → KILLED	if (!isPassedInParameter(ast)) {
126	1 1. visitToken : removed call to com/puppycrawl/tools/checkstyle/checks/metrics/BooleanExpressionComplexityCheck$Context::visitBooleanOperator → KILLED	context.visitBooleanOperator();
127		}
128		break;
129		case TokenTypes.LAND:
130		case TokenTypes.LOR:
131	1 1. visitToken : removed call to com/puppycrawl/tools/checkstyle/checks/metrics/BooleanExpressionComplexityCheck$Context::visitBooleanOperator → KILLED	context.visitBooleanOperator();
132		break;
133		default:
134		throw new IllegalArgumentException("Unknown type: " + ast);
135		}
136		}
137
138		/**
139		* Checks if logical operator is part of constructor or method call.
140		* @param logicalOperator logical operator
141		* @return true if logical operator is part of constructor or method call
142		*/
143		private static boolean isPassedInParameter(DetailAST logicalOperator) {
144	2 1. isPassedInParameter : negated conditional → KILLED 2. isPassedInParameter : replaced return of integer sized value with (x == 0 ? 1 : 0) → KILLED	return logicalOperator.getParent().getType() == TokenTypes.EXPR
145	1 1. isPassedInParameter : negated conditional → KILLED	&& logicalOperator.getParent().getParent().getType() == TokenTypes.ELIST;
146		}
147
148		/**
149		* Checks if {@link TokenTypes#BOR binary OR} is applied to exceptions
150		* in
151		* <a href="http://docs.oracle.com/javase/specs/jls/se8/html/jls-14.html#jls-14.20">
152		* multi-catch</a> (pipe-syntax).
153		* @param binaryOr {@link TokenTypes#BOR binary or}
154		* @return true if binary or is applied to exceptions in multi-catch.
155		*/
156		private static boolean isPipeOperator(DetailAST binaryOr) {
157	2 1. isPipeOperator : negated conditional → KILLED 2. isPipeOperator : replaced return of integer sized value with (x == 0 ? 1 : 0) → KILLED	return binaryOr.getParent().getType() == TokenTypes.TYPE;
158		}
159
160		@Override
161		public void leaveToken(DetailAST ast) {
162		switch (ast.getType()) {
163		case TokenTypes.CTOR_DEF:
164		case TokenTypes.METHOD_DEF:
165	1 1. leaveToken : removed call to com/puppycrawl/tools/checkstyle/checks/metrics/BooleanExpressionComplexityCheck::leaveMethodDef → SURVIVED	leaveMethodDef();
166		break;
167		case TokenTypes.EXPR:
168	1 1. leaveToken : removed call to com/puppycrawl/tools/checkstyle/checks/metrics/BooleanExpressionComplexityCheck::leaveExpr → KILLED	leaveExpr(ast);
169		break;
170		default:
171		// Do nothing
172		}
173		}
174
175		/**
176		* Creates new context for a given method.
177		* @param ast a method we start to check.
178		*/
179		private void visitMethodDef(DetailAST ast) {
180	1 1. visitMethodDef : removed call to java/util/Deque::push → KILLED	contextStack.push(context);
181	1 1. visitMethodDef : negated conditional → KILLED	final boolean check = !CheckUtils.isEqualsMethod(ast);
182		context = new Context(check);
183		}
184
185		/** Removes old context. */
186		private void leaveMethodDef() {
187		context = contextStack.pop();
188		}
189
190		/** Creates and pushes new context. */
191		private void visitExpr() {
192	1 1. visitExpr : removed call to java/util/Deque::push → KILLED	contextStack.push(context);
193		context = new Context(context.isChecking());
194		}
195
196		/**
197		* Restores previous context.
198		* @param ast expression we leave.
199		*/
200		private void leaveExpr(DetailAST ast) {
201	1 1. leaveExpr : removed call to com/puppycrawl/tools/checkstyle/checks/metrics/BooleanExpressionComplexityCheck$Context::checkCount → KILLED	context.checkCount(ast);
202		context = contextStack.pop();
203		}
204
205		/**
206		* Represents context (method/expression) in which we check complexity.
207		*
208		* @author <a href="mailto:simon@redhillconsulting.com.au">Simon Harris</a>
209		* @author o_sukhodolsky
210		*/
211		private class Context {
212		/**
213		* Should we perform check in current context or not.
214		* Usually false if we are inside equals() method.
215		*/
216		private final boolean checking;
217		/** Count of boolean operators. */
218		private int count;
219
220		/**
221		* Creates new instance.
222		* @param checking should we check in current context or not.
223		*/
224		Context(boolean checking) {
225		this.checking = checking;
226		count = 0;
227		}
228
229		/**
230		* Getter for checking property.
231		* @return should we check in current context or not.
232		*/
233		public boolean isChecking() {
234	1 1. isChecking : replaced return of integer sized value with (x == 0 ? 1 : 0) → KILLED	return checking;
235		}
236
237		/** Increases operator counter. */
238		public void visitBooleanOperator() {
239	1 1. visitBooleanOperator : Replaced integer addition with subtraction → KILLED	++count;
240		}
241
242		/**
243		* Checks if we violates maximum allowed complexity.
244		* @param ast a node we check now.
245		*/
246		public void checkCount(DetailAST ast) {
247	3 1. checkCount : changed conditional boundary → KILLED 2. checkCount : negated conditional → KILLED 3. checkCount : negated conditional → KILLED	if (checking && count > max) {
248		final DetailAST parentAST = ast.getParent();
249
250	1 1. checkCount : removed call to com/puppycrawl/tools/checkstyle/checks/metrics/BooleanExpressionComplexityCheck::log → KILLED	log(parentAST.getLineNo(), parentAST.getColumnNo(),
251		MSG_KEY, count, max);
252		}
253		}
254		}
255		}
		Mutations
65		1.1 Location : getDefaultTokens Killed by : com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest.testNullPointerException(com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest) mutated return of Object value for com/puppycrawl/tools/checkstyle/checks/metrics/BooleanExpressionComplexityCheck::getDefaultTokens to ( if (x != null) null else throw new RuntimeException ) → KILLED
79		1.1 Location : getRequiredTokens Killed by : com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest.testNullPointerException(com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest) mutated return of Object value for com/puppycrawl/tools/checkstyle/checks/metrics/BooleanExpressionComplexityCheck::getRequiredTokens to ( if (x != null) null else throw new RuntimeException ) → KILLED
88		1.1 Location : getAcceptableTokens Killed by : com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest.testNoBitwise(com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest) mutated return of Object value for com/puppycrawl/tools/checkstyle/checks/metrics/BooleanExpressionComplexityCheck::getAcceptableTokens to ( if (x != null) null else throw new RuntimeException ) → KILLED
113		1.1 Location : visitToken Killed by : com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest.testNoBitwise(com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest) removed call to com/puppycrawl/tools/checkstyle/checks/metrics/BooleanExpressionComplexityCheck::visitMethodDef → KILLED
116		1.1 Location : visitToken Killed by : com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest.testNullPointerException(com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest) removed call to com/puppycrawl/tools/checkstyle/checks/metrics/BooleanExpressionComplexityCheck::visitExpr → KILLED
119		1.1 Location : visitToken Killed by : com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest.test(com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest) negated conditional → KILLED 2.2 Location : visitToken Killed by : com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest.test(com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest) negated conditional → KILLED
120		1.1 Location : visitToken Killed by : com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest.test(com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest) removed call to com/puppycrawl/tools/checkstyle/checks/metrics/BooleanExpressionComplexityCheck$Context::visitBooleanOperator → KILLED
125		1.1 Location : visitToken Killed by : com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest.test(com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest) negated conditional → KILLED
126		1.1 Location : visitToken Killed by : com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest.test(com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest) removed call to com/puppycrawl/tools/checkstyle/checks/metrics/BooleanExpressionComplexityCheck$Context::visitBooleanOperator → KILLED
131		1.1 Location : visitToken Killed by : com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest.test(com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest) removed call to com/puppycrawl/tools/checkstyle/checks/metrics/BooleanExpressionComplexityCheck$Context::visitBooleanOperator → KILLED
144		1.1 Location : isPassedInParameter Killed by : com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest.test(com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest) negated conditional → KILLED 2.2 Location : isPassedInParameter Killed by : com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest.test(com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest) replaced return of integer sized value with (x == 0 ? 1 : 0) → KILLED
145		1.1 Location : isPassedInParameter Killed by : com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest.test(com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest) negated conditional → KILLED
157		1.1 Location : isPipeOperator Killed by : com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest.test(com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest) negated conditional → KILLED 2.2 Location : isPipeOperator Killed by : com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest.test(com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest) replaced return of integer sized value with (x == 0 ? 1 : 0) → KILLED
165		1.1 Location : leaveToken Killed by : none removed call to com/puppycrawl/tools/checkstyle/checks/metrics/BooleanExpressionComplexityCheck::leaveMethodDef → SURVIVED
168		1.1 Location : leaveToken Killed by : com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest.test(com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest) removed call to com/puppycrawl/tools/checkstyle/checks/metrics/BooleanExpressionComplexityCheck::leaveExpr → KILLED
180		1.1 Location : visitMethodDef Killed by : com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest.testNoBitwise(com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest) removed call to java/util/Deque::push → KILLED
181		1.1 Location : visitMethodDef Killed by : com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest.test(com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest) negated conditional → KILLED
192		1.1 Location : visitExpr Killed by : com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest.testNullPointerException(com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest) removed call to java/util/Deque::push → KILLED
201		1.1 Location : leaveExpr Killed by : com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest.test(com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest) removed call to com/puppycrawl/tools/checkstyle/checks/metrics/BooleanExpressionComplexityCheck$Context::checkCount → KILLED
234		1.1 Location : isChecking Killed by : com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest.test(com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest) replaced return of integer sized value with (x == 0 ? 1 : 0) → KILLED
239		1.1 Location : visitBooleanOperator Killed by : com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest.test(com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest) Replaced integer addition with subtraction → KILLED
247		1.1 Location : checkCount Killed by : com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest.test(com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest) changed conditional boundary → KILLED 2.2 Location : checkCount Killed by : com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest.test(com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest) negated conditional → KILLED 3.3 Location : checkCount Killed by : com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest.testNoBitwise(com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest) negated conditional → KILLED
250		1.1 Location : checkCount Killed by : com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest.test(com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheckTest) removed call to com/puppycrawl/tools/checkstyle/checks/metrics/BooleanExpressionComplexityCheck::log → KILLED

BooleanExpressionComplexityCheck.java

Mutations

Active mutators

Tests examined