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34 lines
1.2 KiB
34 lines
1.2 KiB
<section xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="sec-running-nixos-tests">
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<title>Running Tests</title>
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<para>
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You can run tests using <literal>nix-build</literal>. For example,
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to run the test
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<link xlink:href="https://github.com/NixOS/nixpkgs/blob/master/nixos/tests/login.nix"><literal>login.nix</literal></link>,
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you just do:
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</para>
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<programlisting>
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$ nix-build '<nixpkgs/nixos/tests/login.nix>'
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</programlisting>
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<para>
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or, if you don’t want to rely on <literal>NIX_PATH</literal>:
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</para>
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<programlisting>
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$ cd /my/nixpkgs/nixos/tests
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$ nix-build login.nix
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…
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running the VM test script
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machine: QEMU running (pid 8841)
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…
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6 out of 6 tests succeeded
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</programlisting>
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<para>
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After building/downloading all required dependencies, this will
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perform a build that starts a QEMU/KVM virtual machine containing a
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NixOS system. The virtual machine mounts the Nix store of the host;
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this makes VM creation very fast, as no disk image needs to be
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created. Afterwards, you can view a log of the test:
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</para>
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<programlisting>
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$ nix-store --read-log result
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</programlisting>
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</section>
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