'cabal test' crashes on Windows

[ttuegel]

Cabal crashes with the following error on Windows Vista and 7 (I have not tried XP):

Running 1 test suites...
Test suite tests: RUNNING...
Test suite tests: PASS
Test suite logged to: dist\test\foo-0.1-tests.log
cabal: permission denied

The "permission denied" error appears to be from an attempt to delete a temporary file while it is still open. This does not appear to cause problems on Unix, but Windows won't allow it. I believe it is due to the fact that the temporary log file is read lazily, so it doesn't get closed before the file is deleted.

[ttuegel]

Patch for Cabal-1.10 branch

[ttuegel]

Patch for Cabal HEAD

[duncan]

Applied.

Wed May 18 04:04:22 BST 2011  Thomas Tuegel <ttuegel@gmail.com>
  * Fixed crash on Windows due to file handle leak.
  Ticket #843. Cabal test crashed when trying to delete a temporary log file
  because 'readFile' reads unnecessarily lazily and was keeping a file handle
  open during attempted deletion. This patch forces the entire file to be read
  so the handle will be closed.

[elga]

*  simyo