i really tried to find an answer but i couldn't.
I try to use the regex reference_matchNr to increment a user defined variable.
But i get always the following error msg:
${__intSum(${summe},${count1},summe)};
jmeter.assertions.BeanShellAssertion: java.lang.NumberFormatException: For input string: "${count1}"
or
${__intSum(${summe},"${count1}",summe)};
jmeter.assertions.BeanShellAssertion: java.lang.NumberFormatException: For input string: ""${count1}""
or
${__intSum(${summe},count1,summe)};
jmeter.assertions.BeanShellAssertion: java.lang.NumberFormatException: For input string: "count1"
I used the following code to get the matchNr value:
int count1 = Integer.parseInt(vars.get("status_matchNr"));
The strange thing is i'm able to write the value in the jmeter log(log.info) or in a file.
Thanks in advance.
My expectation is that you're using __intSum() function inside the Beanshell Assertion to add 2 values.
This is not gonna work as the function gets interpreted before the assertion hence your count1 variable is not defined by the moment of function execution.
So workarounds are:
Use "Parameters" input for function evaluation prior interpreting the assertion. You ain't gonna need to convert your "status_matchNr" variable to integer, intSum function will do it for you. So if you put the following line to "Parameters"
${__intSum(${summe},${status_matchNr},summe)};
It assumes that "summe" variable is defined and can be cast to an integer
Go the "code only" way - perform sum of 2 integers purely in Beanshell code like:
int count1 = Integer.parseInt(vars.get("status_matchNr"));
int summe = Integer.parseInt(vars.get("summe"));
summe += count1;
vars.put("summe", String.valueOf(summe));
//your assertion logic here
May I also recommend considering switching from Beanshell to JSR223 Assertion and groovy language as Beanshell has performance problems and may become a bottleneck if your load is high. See Beanshell vs JSR223 vs Java JMeter Scripting: The Performance-Off You've Been Waiting For! guide for details, groovy scripting engine installation instructions and different scripting approaches benchmark.
Related
I use DDMathParser to solver formula expressions using Swift. The following code works fine, however, implicit multiplication doesn't. Reading the docs it should work... So, what do I miss here?
my code:
...
substitutions.updateValue(3, forKey: "x")
let myString = "3$x"
do{
let expression = try Expression(string: myString, operatorSet: operatorSet, options: myTRO, locale: myLocale)
let result = try evaluator.evaluate(expression, substitutions: substitutions)
print("expression is: \(expression), the result is : \(result)")
} catch {
print("Error")
}
...
The code throws the "Error". Using the string "3*$x" the expression is calculated as expected.
DDMathParser author here.
So, the .invalidFormat error is thrown when the framework has a sequence of tokens and is looking for an operator in order to figure out what goes around it. If it can't find an operator but still has tokens to resolve but no operator, then it throws the .invalidFormat error.
This implies that you have a 3.0 number token and a $x variable token, but no × multiplication token.
I see also that you're passing in a custom set of TokenResolverOptions (the myTRO variable). I'd guess that you're passing in an option set that does not include the .allowImplicitMultiplication value. If I try to parse 3$x without the .allowImplicitMultiplication resolver option, then I get the .invalidFormat error thrown.
Ok, got it myself. As Dave DeLong mentioned .allowImplicitMultiplication is included by default in the options but will get ignored when creating custom options. Since I want to use localized expressions (decimal separator within expression string is local) I need to use the advanced definition of Expression:
let expression = try Expression(string: ..., operatorSet: ..., options: ..., locale: ...)
In order to use the localized string option I defined let myLocale = NSLocale.current but accidentally also created a new operatorSet new options and passed it to the expression definition. The right way is not to create custom operatorSet and options but to use the defaults within the Expression definition:
let expression = try Expression(string: expressionString, operatorSet: OperatorSet.default, options: TokenResolverOptions.default, locale: myLocale)
Dave DeLong did a really great job in creating the DDMatParser framework. For newbies it is very hard to get started with. The wiki section at DDMathParser is pretty basic and doesn't give some details or examples for all the other great functionality DDMatParser is providing.
In response, an authentication value consists of \ to escape / in parameter so while capturing parameter it is getting "\" in middle as well but in subsequent request need to send with out "\" is there any way to do this in LoadRunner
Example :-
web_reg_save_param_ex(
"ParamName=pValue",
"LB=Value:",
"RB=\"",
SEARCH_FILTERS,
"Scope=Body",
LAST);
Captured Value is AdfjshxnjkAKLDKLJlk\/ghg
Required value is AdfjshxnjkAKLDKLJlk/ghg
How to remove \ this from the value.
Is there any load runner inbuilt functions for this.
I had a similar problem that I solved by storing the correlated parameter as a string variable and then using a replace function to parse and replace the characters I didn't need.
Only problem is I was using JavaScript as my scripting language in VuGen so my code specifics wouldn't help you much. You might see about doing the same thing with C, or if switching to JS is plausible for you, mine looked similar to this:
var str = lr.evalString("{correlated_parameter}")
var corrected_string = str.replace(/\\/g, '');
My code used a different regular expression, but I think I have the syntax right for what you're trying to do, but I haven't tried this exact string of course.
Here's a link to another SO thread with more details on using the replace function.
I am trying to convert the results of a query into an array
this.arLibrary = ValueList(qryLibrary.ID).ListToArray();
And I get the following error
Detail A script statement must end with ";".The CFML compiler was
processing:A script statement beginning with
this.arLibrary on line 43, column 9.A cfscript tag
beginning on line 21, column 2. KnownColumn -1 KnownLine -1
KnownText <unknown> Line 43 Message Invalid construct.
Snippet this.arLibrary =
ValueList(qryLibrary.ID).
StackTrace
This does work
temp = ValueList(qryLibrary.ID);
this.arMetricLibActive = temp.ListToArray();
It makes me wonder if ValueList() is a string
Yes, it's a string. The error is a parsing issue in the CFML engine. The same syntax works fine in Lucee. File a bug like Henry suggested.
Here's an example in the CommandBox REPL
CFSCRIPT-REPL: foo = queryNew('bar')
{
"COLUMNS":[
"BAR"
],
"DATA":[
]
}
CFSCRIPT-REPL: valueList( foo.bar ).listToArray()
[
]
James, it'd be useful if you read error messages when they are presented to you: they generally contain pertinent information. I don't mean this in a "stating the obvious" sort of way, but rather that it's actually a very important part of troubleshooting problems. You are faced with an error message from the compiler, which means the error occurred when the source code was being compiled. However you are asking a question about data types, which - in a loosely and dynamically typed language like CFML - is a runtime consideration. "Runtime" implies "when the code is being run" which is intrinsically after the code is compiled. If the code can't compile: it won't be run.
So the issue is not whether valueList() returns a string or anything like that.
The issue here is that there is a bug in ColdFusion's CFML parser, and it is not able to interpret this expression:
ValueList(qryLibrary.ID).ListToArray()
I don't know why there's a problem with this: there should be no problem with parsing the calling of a method on another function call's return value; and indeed it seems to be a peculiarity of using valueList() like this, as opposed to built-in functions in general.
File a bug.
As for what to do about it in your code in the meantime, I think Dan is right: generally one can use a query column as an array anyhow, provided one uses bracket notation to reference the column, eg: qryLibrary["ID"]. Brad draws attention to this not working on Lucee, but... this is neither here nor there, and just something that Lucee needs to deal with. There was a bug raised for this in Railo - https://issues.jboss.org/browse/RAILO-641 - but they declined to address it, with only semi-valid reasoning.
Epilog:
This works on ColdFusion 2016 and above
<cfscript>
qryLibrary = QueryNew("ID", "varchar");
qryLibrary.addrow({"id" : "cat"});
qryLibrary.addrow({"id" : "dog"});
qryLibrary.addrow({"id" : "fish"});
writedump(qryLibrary);
arLibrary = ValueList(qryLibrary.ID).ListToArray();
writedump(arLibrary);
</cfscript>
https://cffiddle.org/app/file?filepath=6588296c-5e4d-49a4-894b-4986513e9e30/0ecde857-6d28-4e43-88a7-7830c109ab11/84cd7e81-16f8-43d7-b4c9-5490b1b5d007.cfm
I am trying to get an array of functions, and an array of variables in any mathematical formula in vanilla JS :
A sample :
1+3*9/cos(4+2*x/6+pol)+
BDLIRE(longueur2)+2*8+sin(2)
+g()
For getting functions I use : /([a-zA-Z]+)(?=[(])/gm
https://regex101.com/r/fT3iM7/1
For getting vars I tried : /([a-zA-Z]+[a-zA-Z0-9]?)(?!\()/gm
https://regex101.com/r/mG2fQ2/1
But as you can see it ignores last char of a match followed by a ( char
So i'm a bit stuck with my regex to match variables.
Thanks for any help :)
You cannot use RegEx to parse arithmetic expressions, maybe you can, but you will have a flaky implementation and writing it WILL make you go bonkers.
You need to look into parsers. Check out PEG.js, it is an easy to use framework for writing parsers that compiles into JS, so it IS "vanilla" (Whatever you mean by that...):
http://pegjs.org/
I am analyzing a website that returns text (JSON array), which I'm using HTTP Request element for. What I'm trying to do is check the number of times a string appears in the response, for example a field called "itemname". So I have added a Regular Expression Extractor, put ItemNameVar as the Reference Name, ^itemname$ as the Regular Expression, $1$ for the Template, -1 for Match No, and "NOT FOUND" for Default Value. I've also added an If Controller, which says "${ItemNameVar_matchNr}" == "1", because I expect it to occur only one time. However, it never fails if I set it to a different number. What am I doing wrong here? Thank you.
It looks like to be an issue with your regular expression.
I would suggest using Beanshell Post Processor instead of Regular Expression Extractor as JSON structures aren't very handy to parse with regexes.
Reference Beanshell code will look as follows:
import org.apache.commons.lang3.StringUtils;
int matches = StringUtils.countMatches(new String(data), "itemname");
vars.put("ItemNameVar_matchNr", String.valueOf(matches));
Explanation:
First line - import necessary helper class
Second line - data is a short-hand for byte-array representation of Sampler response. Method countMatches counts number of occurrences of itemname criteria in string representation of response data. Result is saved as matches integer variable
Third line - value of matches is saved as JMeter Variable called ItemNameVar_matchNr
See How to use BeanShell: JMeter's favorite built-in component guide for more detailed explanation of Beanshell scripting in JMeter and small Beanshell cookbook containing JMeter API usage examples.
The approach you are following is absolutely correct.
Please check your Jmeter script. Make sure the next request you are trying to execute after
IF Controller is branch or within Controller
Jmeter IF Controller
Hope this will help.