private void OnFunction(string unit, int streamOffset, IFunctionStream funcStream)
{
BlockAnalyzer analyzer = new BlockAnalyzer(this.parser, funcStream, this.OnLocalFunction, this.switchBehavior);
int ccm = 1 + analyzer.ConsumeBlockCalculateAdditionalComplexity();
var metric = new ccMetric(this.filename, unit, ccm);
metric.StartLineNumber = GetLineNumber(streamOffset);
metric.EndLineNumber = GetLineNumber(this.parser.StreamOffset);
this.callback.OnMetric(metric, this.context);
}
public void CatchCountedAsPath()
{
string code = "{ " +
" try { \r\n " +
" } " +
" catch (const ex&){} " +
"}";
LookAheadLangParser parser = LookAheadLangParser.CreateCppParser(TestUtil.GetTextStream(code));
BlockAnalyzer analyzer = new BlockAnalyzer(parser);
Assert.AreEqual(1, analyzer.ConsumeBlockCalculateAdditionalComplexity());
}
public void AnalyzerConsumesNestedBlocks()
{
string code = "" +
"{ \r\n" +
" { int x = 0; } \r\n" +
"} \r\n" +
"{}";
LookAheadLangParser parser = LookAheadLangParser.CreateCppParser(TestUtil.GetTextStream(code));
BlockAnalyzer analyzer = new BlockAnalyzer(parser);
analyzer.ConsumeBlockCalculateAdditionalComplexity();
Assert.AreEqual("{", parser.NextKeyword());
Assert.AreEqual("}", parser.NextKeyword());
}
public void SwitchCaseWithEmbeddedConditionals()
{
string code = "" +
"{ switch(x) \r\n" +
" { \r\n" +
" case 1: return 2; break;\r\n" +
" case 2: " +
" if (x > u) return 3; \r\n" +
" break;" +
" } } }\r\n";
LookAheadLangParser parser = LookAheadLangParser.CreateCppParser(TestUtil.GetTextStream(code));
BlockAnalyzer analyzer = new BlockAnalyzer(parser);
Assert.AreEqual(3, analyzer.ConsumeBlockCalculateAdditionalComplexity());
}
public void WhileWithoutScoping()
{
string code = "" +
"{ " +
" while(true)\r\n" +
" if (this.x.y)\r\n" +
" return u;\r\n" +
" return x;\r\n" +
"} ";
LookAheadLangParser parser = LookAheadLangParser.CreateCppParser(TestUtil.GetTextStream(code));
BlockAnalyzer analyzer = new BlockAnalyzer(parser);
Assert.AreEqual(2, analyzer.ConsumeBlockCalculateAdditionalComplexity());
}
public void VariablesWithInitializationLists()
{
string code = "" +
"{ " +
" this.x = new List<string>( new string[] { \"if\", \"while\" } ); \r\n" +
" if (this.x.y) " +
" return u; " +
"} more";
LookAheadLangParser parser = LookAheadLangParser.CreateCppParser(TestUtil.GetTextStream(code));
BlockAnalyzer analyzer = new BlockAnalyzer(parser);
Assert.AreEqual(1, analyzer.ConsumeBlockCalculateAdditionalComplexity());
Assert.AreEqual("more", parser.NextKeyword());
}
public void TestCaseInsideSwitchNotCounted_WhenSwitchBehaviorIgnoreCases()
{
string code = "{ " +
" switch(x)) { " +
" case 3: break; " +
" case 4: break; " +
" default: break; " +
" } " +
"}";
LookAheadLangParser parser = LookAheadLangParser.CreateCppParser(TestUtil.GetTextStream(code));
BlockAnalyzer analyzer = new BlockAnalyzer(parser, null, null, ParserSwitchBehavior.IgnoreCases);
Assert.AreEqual(0, analyzer.ConsumeBlockCalculateAdditionalComplexity());
}
public void TestBranchInCaseIncludedButNotCaseStatements_WhenSwitchBehaviorIgnoreCases()
{
// with ParserSwitchBehavior.IgnoreCases we ignore switch cases and just include branches inside of case statements
string code = "{ " +
" switch(x)) { " +
" case 3: if (a) { // do something } ; " +
" case 4: break; " +
" default: break; " +
" } " +
"}";
LookAheadLangParser parser = LookAheadLangParser.CreateCppParser(TestUtil.GetTextStream(code));
BlockAnalyzer analyzer = new BlockAnalyzer(parser, null, null, ParserSwitchBehavior.IgnoreCases);
Assert.AreEqual(1, analyzer.ConsumeBlockCalculateAdditionalComplexity());
}
private void OnFunction(string unit, int streamOffset, IFunctionStream funcStream)
{
BlockAnalyzer analyzer = new BlockAnalyzer(this.parser, funcStream, this.OnLocalFunction, this.switchBehavior);
int ccm = 1 + analyzer.ConsumeBlockCalculateAdditionalComplexity();
var metric = new ccMetric(this.filename, unit, ccm);
metric.StartLineNumber = GetLineNumber(streamOffset);
metric.EndLineNumber = GetLineNumber(this.parser.StreamOffset);
this.callback.OnMetric(metric, this.context);
}
public void EmptyStatement()
{
string code = "{ }";
LookAheadLangParser parser = LookAheadLangParser.CreateCppParser(TestUtil.GetTextStream(code));
BlockAnalyzer analyzer = new BlockAnalyzer(parser);
Assert.AreEqual(0, analyzer.ConsumeBlockCalculateAdditionalComplexity()); // I'm not adding a CC value based on { and }
}
public void StructInitializationAndAssignment()
{
string code = "" +
"{ \r\n" +
" RECT rect = { 0, 0, 0, 0 }; \r\n" +
" if (x) return; \r\n" +
"}";
LookAheadLangParser parser = LookAheadLangParser.CreateCppParser(TestUtil.GetTextStream(code));
BlockAnalyzer analyzer = new BlockAnalyzer(parser);
Assert.AreEqual(1, analyzer.ConsumeBlockCalculateAdditionalComplexity());
}
public void CodeInCatchCounted()
{
string code = "{ " +
" try { " +
" int* p = 0 " +
" *p = 2; " +
" } " +
" catch (const ex&) " +
" { " +
" if (x > y) x++ " +
" } " +
"}";
LookAheadLangParser parser = LookAheadLangParser.CreateCppParser(TestUtil.GetTextStream(code));
BlockAnalyzer analyzer = new BlockAnalyzer(parser);
Assert.AreEqual(2, analyzer.ConsumeBlockCalculateAdditionalComplexity());
}
public void ReturnWithCreate()
{
string code = "{ " +
" return new ParentOCModifiedEventArgs(items) { IsCommitResult = contextInCommitStage }; " +
"}";
LookAheadLangParser parser = LookAheadLangParser.CreateCppParser(TestUtil.GetTextStream(code));
BlockAnalyzer analyzer = new BlockAnalyzer(parser);
Assert.AreEqual(0, analyzer.ConsumeBlockCalculateAdditionalComplexity());
}
public void PragmasRemoved()
{
string code = "{ " +
" #pragma warning (disable: 333) \r\n " +
" int j; \r\n " +
" return j; \r\n " +
"}";
LookAheadLangParser parser = LookAheadLangParser.CreateCppParser(TestUtil.GetTextStream(code));
BlockAnalyzer analyzer = new BlockAnalyzer(parser);
Assert.AreEqual(0, analyzer.ConsumeBlockCalculateAdditionalComplexity());
}
public void IfStatements()
{
string code = "" +
"{ \r\n" +
"if (x > 2) \r\n" +
"{ y = x; } \r\n" +
"else if (x > 3)\r\n" +
" y = 4; \r\n" +
"}";
LookAheadLangParser parser = LookAheadLangParser.CreateCppParser(TestUtil.GetTextStream(code));
BlockAnalyzer analyzer = new BlockAnalyzer(parser);
Assert.AreEqual(2, analyzer.ConsumeBlockCalculateAdditionalComplexity()); // I'm not adding a CC value based on { and }
}
public void ExpressionCounterConsumesExpression()
{
string code = "((x))(y)";
LookAheadLangParser parser = LookAheadLangParser.CreateCppParser(TestUtil.GetTextStream(code));
BlockAnalyzer analyzer = new BlockAnalyzer(parser);
analyzer.CalcNumExpressionConditions();
Assert.AreEqual("(", parser.NextKeyword());
Assert.AreEqual("y", parser.NextKeyword());
Assert.AreEqual(")", parser.NextKeyword());
}
public void ExpressionCountAndOr()
{
string code = "((x > 2) && (y>2) || (b))";
LookAheadLangParser parser = LookAheadLangParser.CreateCppParser(TestUtil.GetTextStream(code));
BlockAnalyzer analyzer = new BlockAnalyzer(parser);
Assert.AreEqual(2, analyzer.CalcNumExpressionConditions());
}
public void ConditionalBranchConsumesBranchOnly()
{
string code = "" +
"if (x > 2) \r\n" +
"{ y = x; } \r\n" +
"else";
LookAheadLangParser parser = LookAheadLangParser.CreateCppParser(TestUtil.GetTextStream(code));
BlockAnalyzer analyzer = new BlockAnalyzer(parser);
analyzer.CalcCCOnConditionalBranch();
Assert.AreEqual("else", parser.PeekNextKeyword());
}
public void SwitchEmbeddedIntoWhile()
{
string code = "{ " +
" while (true) { " +
" switch(x)) { " +
" case 3: break; " +
" case 4: break; " +
" default: break; " +
" } " +
" }" +
"}";
LookAheadLangParser parser = LookAheadLangParser.CreateCppParser(TestUtil.GetTextStream(code));
BlockAnalyzer analyzer = new BlockAnalyzer(parser);
Assert.AreEqual(3, analyzer.ConsumeBlockCalculateAdditionalComplexity());
}
public void SwitchStatementConsumes()
{
string code = "" +
"{ switch(x) \r\n" +
" { \r\n" +
" case 1: return 2; \r\n" +
" case 2: return 3; \r\n" +
" } } text \r\n";
LookAheadLangParser parser = LookAheadLangParser.CreateCppParser(TestUtil.GetTextStream(code));
BlockAnalyzer analyzer = new BlockAnalyzer(parser);
analyzer.ConsumeBlockCalculateAdditionalComplexity();
Assert.AreEqual("text", parser.NextKeyword());
}
public void ConditionalExpressionEmbeddedCalls()
{
string code = "" +
"(x != this.parser.PeekNext()) \r\n" +
"this.parser.NextKeyword()";
LookAheadLangParser parser = LookAheadLangParser.CreateCppParser(TestUtil.GetTextStream(code));
BlockAnalyzer analyzer = new BlockAnalyzer(parser);
analyzer.CalcNumExpressionConditions();
Assert.AreEqual("this.parser.NextKeyword", parser.NextKeyword());
}
