Conditions

Supported Platforms

Installation

Install-Package Conditions

Usage

publicICollectionGetData(Nullable<int>id,stringxml,IEnumerable<int>col){// Check all preconditions:Condition.Requires(id,"id").IsNotNull()// throws ArgumentNullException on failure.IsInRange(1,999)// ArgumentOutOfRangeException on failure.IsNotEqualTo(128);// throws ArgumentException on failureCondition.Requires(xml,"xml").StartsWith("<data>")// throws ArgumentException on failure.EndsWith("</data>")// throws ArgumentException on failure.Evaluate(xml.Contains("abc")||xml.Contains("cba"));// arg exCondition.Requires(col,"col").IsNotNull()// throws ArgumentNullException on failure.IsEmpty()// throws ArgumentException on failure.Evaluate(c=>c.Contains(id.Value)||c.Contains(0));// arg ex// Do some work// Example: Call a method that should not return nullobjectresult=BuildResults(xml,col);// Check all postconditions:Condition.Ensures(result,"result").IsOfType(typeof(ICollection));// throws PostconditionException on failurereturn(ICollection)result;}publicstaticint[]Multiply(int[]left,int[]right){Condition.Requires(left,"left").IsNotNull();// You can add an optional description to each checkCondition.Requires(right,"right").IsNotNull().HasLength(left.Length,"left and right should have the same length");// Do multiplication}

C# 6

namespaceFoo{usingstaticCondition;publicclassBar{publicvoidBuzz(objectarg){Required(arg).IsNotNull();}}}

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