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How can I unit test Arduino code?

...Sim-based tests There's a lot of discussion about what unit test means and I'm not really trying to make an argument about that here. This post is not telling you to avoid all practical testing on your ultimate target hardware. I am trying to make a point about optimizing your developmen...
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Where should signal handlers live in a django project?

...started implementing signal listeners in a django project. While I understand what they are and how to use them. I am having a hard time figuring out where I should put them. The documentation from the django site has this to say: ...
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Confusion between factor levels and factor labels

There seems to be a difference between levels and labels of a factor in R. Up to now, I always thought that levels were the 'real' name of factor levels, and labels were the names used for output (such as tables and plots). Obviously, this is not the case, as the following example shows: ...
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The input is not a valid Base-64 string as it contains a non-base 64 character

I have a REST service that reads a file and sends it to another console application after converting it to Byte array and then to Base64 string. This part works, but when the same stream is received at the application, it gets manipulated and is no longer a valid Base64 string. Some junk characters ...
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MongoDB and “joins” [duplicate]

...ll only be evaluated when needed. A join (in a SQL database) on the other hand will resolve relationships and return them as if they were a single table (you "join two tables into one"). You can read more about DBRef here: http://docs.mongodb.org/manual/applications/database-references/ There are ...
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navigator.geolocation.getCurrentPosition sometimes works sometimes doesn't

... I have been having exactly the same problem, and finding almost no information online about it. Nothing at all in the books. Finally I found this sober query on stackoverflow and (ha!) it was the final impetus I needed to set up an account here. And I have a partial an...
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Forgot “git rebase --continue” and did “git commit”. How to fix?

...rebasing code in git, I got some merge conflicts. I resolved the conflicts and did: 4 Answers ...
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How to get .pem file from .key and .crt files?

...ust named with .crt or .key. If the file's content begins with -----BEGIN and you can read it in a text editor: The file uses base64, which is readable in ASCII, not binary format. The certificate is already in PEM format. Just change the extension to .pem. If the file is in binary: For the serv...
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Maven: The packaging for this project did not assign a file to the build artifact

I'm using Maven 3.0.3 on Mac 10.6.6. I have a JAR project and when I run the command "mvn clean install:install", I'm getting the error, ...
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What optimizations can GHC be expected to perform reliably?

...ut I don't know what they all are, nor how likely they are to be performed and under what circumstances. 3 Answers ...