forked from lix-project/lix
68c81c7375
I think it is bad for these reasons when `tests/` contains a mix of functional and integration tests - Concepts is harder to understand, the documentation makes a good unit vs functional vs integration distinction, but when the integration tests are just two subdirs within `tests/` this is not clear. - Source filtering in the `flake.nix` is more complex. We need to filter out some of the dirs from `tests/`, rather than simply pick the dirs we want and take all of them. This is a good sign the structure of what we are trying to do is not matching the structure of the files. With this change we have a clean: ```shell-session $ git show 'HEAD:tests' tree HEAD:tests functional/ installer/ nixos/ ```
7 lines
271 B
Nix
7 lines
271 B
Nix
# Checks that the nul value for the accumulator is not forced unconditionally.
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# Some languages provide a foldl' that is strict in this argument, but Nix does not.
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builtins.foldl'
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(_: x: x)
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(throw "This is never forced")
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[ "but the results of applying op are" 42 ]
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