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POfxri (Ruby) hangs at "compilation" of certain classes but doesnt after a few small changes
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copied!<p>I have been debugging following class in Ruby over and over again trying to figure out what breaks it. I am out of ideas atm. </p> <p>Funny enough this is a programming assignment for the course software testing at the university. We are to write a ruby program and determine some properties of a triangle. Note: not asking you guys to solve my problem form me, I think I am experiencing a possible bug in Ruby but more likely a mistake in my program. I am having a - so far - anomaly which i am unable to pinpoint to the use of some function/assignment/whatever.</p> <p>To proof I am not using you to solve my programming task... This is the actual assignment: <a href="http://homepages.cwi.nl/~jve/courses/testing2009/week1/Lab1.pdf" rel="nofollow noreferrer">http://homepages.cwi.nl/~jve/courses/testing2009/week1/Lab1.pdf</a></p> <p>Im having trouble with the triangle class I've been writing. Its the first time for me that Im writing a ruby program although Im familiar with VB6, C++ and C#. Usually I keep searching on google for the problem i am experiencing but I dont think i will find it there</p> <p>Underneath I will post the working and the failing programs. Funny enough by taking out a function the program then works again even if the function is standalone. I have taken out random parts of the program and randomly put some back in. And as it appears the program seems to break at random. I am unable to find the culprit. </p> <p>This might look long but its the same class over and over again. Just trying to show what I've tried so far. With "This doesnt work" I mean the fxri freezes. </p> <p>PS. I've tried the same on my laptop too. And to be sure I DLd the latest version of Ruby</p> <pre><code>#This works class Example def initialize(a,b,c) @pA = a @pB = b @pC = c end def shouldntThisWork() myArray = [@pA,@pB,@pC] end def test() arr1 = [@pA, @pB, @pC] arr1.each { | elem | print elem, "\n"} return end end #This works class Triangle #checks first if inputs are of type float and bigger than zero def initialize(sideA, sideB, sideC) raise "Side A must be a float." if not sideA.kind_of? Float raise "Side B must be a float." if not sideB.kind_of? Float raise "Side C must be a float." if not sideC.kind_of? Float raise "Size error for side A (must be greater than 0)" if sideA <= 0 raise "Size error for side B (must be greater than 0)" if sideB <= 0 raise "Size error for side C (must be greater than 0)" if sideC <= 0 @pA = sideA @pB = sideB @pC = sideC end def test() arr1 = [@pA, @pB, @pC] arr1.each { | elem | print elem, "\n"} return end end #This works class Triangle #checks first if inputs are of type float and bigger than zero def initialize(sideA, sideB, sideC) raise "Side A must be a float." if not sideA.kind_of? Float raise "Side B must be a float." if not sideB.kind_of? Float raise "Side C must be a float." if not sideC.kind_of? Float raise "Size error for side A (must be greater than 0)" if sideA <= 0 raise "Size error for side B (must be greater than 0)" if sideB <= 0 raise "Size error for side C (must be greater than 0)" if sideC <= 0 @pA = sideA @pB = sideB @pC = sideC end def isEquilateral() return (@pA == @pB and @pB == @pC) end def isIsosceles() numEqual = 0 if @pA == @pB numEqual += 1 end if @pA == @pC numEqual += 1 end if @pC == @pB numEqual += 1 end return (numEqual == 2) end def test() arr1 = [@pA, @pB, @pC] arr1.each { | elem | print elem, "\n"} return end end # This Works class Triangle #checks first if inputs are of type float and bigger than zero def initialize(sideA, sideB, sideC) raise "Side A must be a float." if not sideA.kind_of? Float raise "Side B must be a float." if not sideB.kind_of? Float raise "Side C must be a float." if not sideC.kind_of? Float raise "Size error for side A (must be greater than 0)" if sideA <= 0 raise "Size error for side B (must be greater than 0)" if sideB <= 0 raise "Size error for side C (must be greater than 0)" if sideC <= 0 @pA = sideA @pB = sideB @pC = sideC end def isEquilateral() return (@pA == @pB and @pB == @pC) end def isIsosceles() numEqual = 0 if @pA == @pB numEqual += 1 end if @pA == @pC numEqual += 1 end if @pC == @pB numEqual += 1 end return (numEqual == 2) end def test() arr1 = [@pA, @pB, @pC] arr1.each { | elem | print elem, "\n"} return end end #This works class Triangle #checks first if inputs are of type float and bigger than zero def initialize(sideA, sideB, sideC) raise "Side A must be a float." if not sideA.kind_of? Float raise "Side B must be a float." if not sideB.kind_of? Float raise "Side C must be a float." if not sideC.kind_of? Float raise "Size error for side A (must be greater than 0)" if sideA <= 0 raise "Size error for side B (must be greater than 0)" if sideB <= 0 raise "Size error for side C (must be greater than 0)" if sideC <= 0 @pA = sideA @pB = sideB @pC = sideC end def A() return @pA end def B() return @pB end def C() return @pC end def test() arr1 = [@pA, @pB, @pC] arr1.each { | elem | print elem, "\n"} return end def isEquilateral() return (@pA == @pB and @pB == @pC) end end # this doesnt work class Triangle #checks first if inputs are of type float and bigger than zero def initialize(sideA, sideB, sideC) raise "Side A must be a float." if not sideA.kind_of? Float raise "Side B must be a float." if not sideB.kind_of? Float raise "Side C must be a float." if not sideC.kind_of? Float raise "Size error for side A (must be greater than 0)" if sideA <= 0 raise "Size error for side B (must be greater than 0)" if sideB <= 0 raise "Size error for side C (must be greater than 0)" if sideC <= 0 @pA = sideA @pB = sideB @pC = sideC end def A() return @pA end def B() return @pB end def C() return @pC end def test() arr1 = [@pA, @pB, @pC] arr1.each { | elem | print elem, "\n"} return end def isEquilateral() return (@pA == @pB and @pB == @pC) end def isIsosceles() numEqual = 0 if @pA == @pB numEqual += 1 end if @pA == @pC numEqual += 1 end if @pC == @pB numEqual += 1 end return (numEqual == 2) end end # But then this does work class Triangle #checks first if inputs are of type float and bigger than zero def initialize(sideA, sideB, sideC) raise "Side A must be a float." if not sideA.kind_of? Float raise "Side B must be a float." if not sideB.kind_of? Float raise "Side C must be a float." if not sideC.kind_of? Float raise "Size error for side A (must be greater than 0)" if sideA <= 0 raise "Size error for side B (must be greater than 0)" if sideB <= 0 raise "Size error for side C (must be greater than 0)" if sideC <= 0 @pA = sideA @pB = sideB @pC = sideC end def A() return @pA end def B() return @pB end def C() return @pC end def isEquilateral() return (@pA == @pB and @pB == @pC) end def isIsosceles() numEqual = 0 if @pA == @pB numEqual += 1 end if @pA == @pC numEqual += 1 end if @pC == @pB numEqual += 1 end return (numEqual == 2) end end # This doesnt class Triangle #checks first if inputs are of type float and bigger than zero def initialize(sideA, sideB, sideC) raise "Side A must be a float." if not sideA.kind_of? Float raise "Side B must be a float." if not sideB.kind_of? Float raise "Side C must be a float." if not sideC.kind_of? Float raise "Size error for side A (must be greater than 0)" if sideA <= 0 raise "Size error for side B (must be greater than 0)" if sideB <= 0 raise "Size error for side C (must be greater than 0)" if sideC <= 0 @pA = sideA @pB = sideB @pC = sideC end def A() return @pA end def B() return @pB end def C() return @pC end def isEquilateral() return (@pA == @pB and @pB == @pC) end def isIsosceles() numEqual = 0 if @pA == @pB numEqual += 1 end if @pA == @pC numEqual += 1 end if @pC == @pB numEqual += 1 end return (numEqual == 2) end def test() arr1 = [@pA, @pB, @pC] arr1.each { | elem | print elem, "\n"} return end end # This works again class Triangle #checks first if inputs are of type float and bigger than zero def initialize(sideA, sideB, sideC) @pA = sideA @pB = sideB @pC = sideC end def A() return @pA end def B() return @pB end def C() return @pC end def isEquilateral() return (@pA == @pB and @pB == @pC) end def isIsosceles() numEqual = 0 if @pA == @pB numEqual += 1 end if @pA == @pC numEqual += 1 end if @pC == @pB numEqual += 1 end return (numEqual == 2) end def test() arr1 = [@pA, @pB, @pC] arr1.each { | elem | print elem, "\n"} return end end #test class Triangle #checks first if inputs are of type float and bigger than zero def initialize(sideA, sideB, sideC) @pA = sideA @pB = sideB @pC = sideC end def A() return @pA end def B() return @pB end def C() return @pC end def isEquilateral() return (@pA == @pB and @pB == @pC) end def isIsosceles() numEqual = 0 if @pA == @pB numEqual += 1 end if @pA == @pC numEqual += 1 end if @pC == @pB numEqual += 1 end return (numEqual == 2) end def test() arr1 = [@pA, @pB, @pC] arr1.each { | elem | print elem, "\n"} return end def dunno() return "Dunno" end def neee() return "Een ", @pA end end </code></pre>

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