feat(nix/readTree): add tests of the traversal logic in README
This should closely match the documented behaviour. It might still be missing some edge cases of course. Change-Id: I5c75fa045d5f3be8cf5eab787a02644500c14522 Reviewed-on: https://cl.tvl.fyi/c/depot/+/2466 Reviewed-by: tazjin <mail@tazj.in> Tested-by: BuildkiteCI
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15 changed files with 95 additions and 1 deletions
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@ -10,7 +10,7 @@ let
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tree-ex = depot.nix.readTree {} ./test-example;
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tree-ex = depot.nix.readTree {} ./test-example;
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example = it "corresponds to the example" [
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example = it "corresponds to the README example" [
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(assertEq "third_party attrset"
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(assertEq "third_party attrset"
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(lib.isAttrs tree-ex.third_party
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(lib.isAttrs tree-ex.third_party
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&& (! lib.isDerivation tree-ex.third_party))
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&& (! lib.isDerivation tree-ex.third_party))
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@ -32,6 +32,54 @@ let
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"roquefort")
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"roquefort")
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];
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];
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tree-tl = depot.nix.readTree {} ./test-tree-traversal;
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traversal-logic = it "corresponds to the traversal logic in the README" [
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(assertEq "skip subtree default.nix is read"
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tree-tl.skip-subtree.but
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"the default.nix is still read")
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(assertEq "skip subtree a/default.nix is skipped"
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(tree-tl.skip-subtree ? a)
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false)
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(assertEq "skip subtree b/c.nix is skipped"
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(tree-tl.skip-subtree ? b)
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false)
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(assertEq "skip subtree a/default.nix would be read without .skip-subtree"
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(tree-tl.no-skip-subtree.a)
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"am I subtree yet?")
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(assertEq "skip subtree b/c.nix would be read without .skip-subtree"
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(tree-tl.no-skip-subtree.b.c)
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"cool")
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(assertEq "default.nix attrset is merged with siblings"
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tree-tl.default-nix.no
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"siblings should be read")
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(assertEq "default.nix means sibling isn’t read"
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(tree-tl.default-nix ? sibling)
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false)
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(assertEq "default.nix means subdirs are still read and merged into default.nix"
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(tree-tl.default-nix.subdir.a)
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"but I’m picked up")
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(assertEq "default.nix can be not an attrset"
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tree-tl.default-nix.no-merge
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"I’m not merged with any children")
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(assertEq "default.nix is not an attrset -> children are not merged"
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(tree-tl.default-nix.no-merge ? subdir)
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false)
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(assertEq "default.nix can contain a derivation"
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(lib.isDerivation tree-tl.default-nix.can-be-drv)
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true)
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(assertEq "Even if default.nix is a derivation, children are traversed and merged"
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tree-tl.default-nix.can-be-drv.subdir.a
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"Picked up through the drv")
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(assertEq "default.nix drv is not changed by readTree"
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tree-tl.default-nix.can-be-drv
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(import ./test-tree-traversal/default-nix/can-be-drv/default.nix {}))
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];
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in runTestsuite "readTree" [
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in runTestsuite "readTree" [
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example
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example
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traversal-logic
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]
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]
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@ -0,0 +1,7 @@
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{ ... }:
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derivation {
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name = "im-a-drv";
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system = builtins.currentSystem;
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builder = "/bin/sh";
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args = [ "-c" ''echo "" > $out'' ];
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}
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@ -0,0 +1,3 @@
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{ ... }:
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"Picked up through the drv"
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@ -0,0 +1,5 @@
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{ ... }:
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{
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no = "siblings should be read";
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}
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@ -0,0 +1,3 @@
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{ ... }:
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"I’m not merged with any children"
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@ -0,0 +1 @@
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"not accessible since parent default.nix is not an attrset"
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@ -0,0 +1 @@
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"I’m left alone"
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@ -0,0 +1,3 @@
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{ ... }:
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"but I’m picked up"
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@ -0,0 +1,3 @@
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{ ... }:
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"am I subtree yet?"
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@ -0,0 +1,3 @@
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{ ... }:
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"cool"
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@ -0,0 +1,5 @@
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{ ... }:
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{
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but = "the default.nix is still read";
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}
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@ -0,0 +1 @@
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this file makes subdirs be skipped, I hope
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@ -0,0 +1,3 @@
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{ ... }:
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"am I subtree yet?"
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@ -0,0 +1,3 @@
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{ ... }:
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"cool"
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@ -0,0 +1,5 @@
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{ ... }:
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{
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but = "the default.nix is still read";
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}
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