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Whenever I edit a file called filename.something, my text editor creates a file called .#filename.something when I modify anything. That file exists until I save. These files never were a problem until now. However, Truffle does not get along with them. Whenever I run

truffle test

with any modified but unsaved files, I now get this error message:

Error: ENOENT: no such file or directory, stat '/path/to/project/test/.#Contract.test.js'

This even happens when I run the command and start editing as my contracts compile. So I always have to sit through that, not doing anything. How can I tell Truffle to just ignore file names that start with .#?

I use Truffle v5.0.37.

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If you're using Truffle 4.x, then you can patch their source code as follows:

Step 1 - open file:

/node_modules/truffle/build/cli.bundled.js

Step 2 - search for:

dir.files(config.test_directory, callback);

Step 3 - replace it with:

dir.files(config.test_directory, (x, y) => callback(x, y.filter(f => !f.includes(".#"))));
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  • Thank you. But I use Truffle 5 and that line doesn't exist. I should've mentioned the version in my question. I'm sorry. Instead, there is this line: files = dir.files(config.test_directory, { sync: true }) || []; And a few lines below, there's: return file.match(config.test_file_extension_regexp) != null; So I added this to my truffle-config.js inside module.exports: test_file_extension_regexp: /^(\.#.*)$/, However, the regex seems to be off as now no test files are found. Can you please help me to get it right? – UTF-8 Jan 13 '20 at 15:32
  • @UTF-8: Sounds like Truffle 5 allows you to configure this from the outside (i.e., via truffle-config.js or something like that). In any case, you'd still need to figure out the exact regular expression, and I'm afraid I'm not much of a fast shooter when it comes to that (i.e., I'd have to look it up just like you do). You can post a question on stack overflow I suppose, where you are pretty much guaranteed to get an imminent response. I believe that in your regexp, you are looking for 0 or more occurrences of .#, while you should be looking for 1 or more occurrences of that string. – goodvibration Jan 13 '20 at 15:49
  • I now figured out a regex that's not only ugly but should demand that the first character of the file name be a letter or a digit: test_file_extension_regexp: /^(.*)\/test\/([a-zA-Z0-9])(.*).test.js$/, However, the error is still thrown. It seems to me that Truffle is encountering a problem without using the file because it's not a regular file but a broken symbolic link. – UTF-8 Jan 13 '20 at 16:07

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