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https://issues.apache.org/jira/browse/DAFFODIL-2878?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17820198#comment-17820198
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Mike Beckerle commented on DAFFODIL-2878:
-----------------------------------------

I saw your PR, but I don't know that anything other than knowing about this 
debug=true argument is needed. 

I did discover that there is a paths issue. In my IDE if I run the CLI test 
named test_Layer_Execution, it fails because it cannot find the schema file. It 
seems like it is running with current directory already in daffodil-cli, so the 
schema path which begins with daffodil-cli is not found. If I remove that first 
path component, then it works fine, and the debug argument gives me what I need.

However, if run from sbt, the first path segment of daffodil-cli appears to be 
necessary, and that is true for 'sbt test' and if you run sbt interactively, 
and do 'project daffodil-cli' first, then 'test'. 

But the path stuff is a small matter. 

> cli test expect timeouts need to display the captured text that doesn't meet 
> the expectation
> --------------------------------------------------------------------------------------------
>
>                 Key: DAFFODIL-2878
>                 URL: https://issues.apache.org/jira/browse/DAFFODIL-2878
>             Project: Daffodil
>          Issue Type: Improvement
>          Components: Infrastructure
>    Affects Versions: 3.6.0
>            Reporter: Mike Beckerle
>            Priority: Minor
>
> When a CLI test fails due to an expect timeout such as:
>  
> {code:java}
> [error] Test 
> org.apache.daffodil.cli.cliTest.TestCLIParsing.test_Layer_Execution_Error 
> failed: net.sf.expectit.ExpectIOException: Expect operation fails (timeout: 
> -1 ms) for matcher: contains('Unexpected exception in layer transformer 
> 'buggy''), took 3.414 sec
> [error]     at net.sf.expectit.ExpectImpl.expectIn(ExpectImpl.java:106)
> {code}
> It could be good if the actual output text was displayed so that one can see 
> why the expectation was not met.
> Without that, it's actually a bit tedious to reproduce the test in order to 
> see the actual output. You have to stage daffodil, mine the command line with 
> all args from the CLI test, and then issue the command line to daffodil. 
> It's not so easy to debug into the expect utility to find the text at issue. 
>  



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