Split out nix-collect-garbage -d test to new file

Good for test parallelism, and separation of concerns (core GC vs
profiles deleting).

tests/gc.sh

@@ -50,40 +50,3 @@ if test -e $outPath/foobar; then false; fi
 # Check that the store is empty.
 rmdir $NIX_STORE_DIR/.links
 rmdir $NIX_STORE_DIR
-
-## Test `nix-collect-garbage -d`
-testCollectGarbageD () {
-    clearProfiles
-    # Run two `nix-env` commands, should create two generations of
-    # the profile
-    nix-env -f ./user-envs.nix -i foo-1.0 "$@"
-    nix-env -f ./user-envs.nix -i foo-2.0pre1 "$@"
-    [[ $(nix-env --list-generations "$@" | wc -l) -eq 2 ]]
-
-    # Clear the profile history. There should be only one generation
-    # left
-    nix-collect-garbage -d
-    [[ $(nix-env --list-generations "$@" | wc -l) -eq 1 ]]
-}
-
-# `nix-env` doesn't work with CA derivations, so let's ignore that bit if we're
-# using them
-if [[ -z "${NIX_TESTS_CA_BY_DEFAULT:-}" ]]; then
-    testCollectGarbageD
-
-    # Run the same test, but forcing the profiles an arbitrary location.
-    rm ~/.nix-profile
-    ln -s $TEST_ROOT/blah ~/.nix-profile
-    testCollectGarbageD
-
-    # Run the same test, but forcing the profiles at their legacy location under
-    # /nix/var/nix.
-    #
-    # Note that we *don't* use the default profile; `nix-collect-garbage` will
-    # need to check the legacy conditional unconditionally not just follow
-    # `~/.nix-profile` to pass this test.
-    #
-    # Regression test for #8294
-    rm ~/.nix-profile
-    testCollectGarbageD --profile "$NIX_STATE_DIR/profiles/per-user/me"
-fi

tests/local.mk

@@ -16,6 +16,7 @@ nix_tests = \
   flakes/flake-in-submodule.sh \
   ca/gc.sh \
   gc.sh \
+  nix-collect-garbage-d.sh \
   remote-store.sh \
   legacy-ssh-store.sh \
   lang.sh \

tests/nix-collect-garbage-d.sh

@@ -0,0 +1,40 @@
+source common.sh
+
+clearStore
+
+## Test `nix-collect-garbage -d`
+
+# TODO make `nix-env` doesn't work with CA derivations, and make
+# `ca/nix-collect-garbage-d.sh` wrapper.
+
+testCollectGarbageD () {
+    clearProfiles
+    # Run two `nix-env` commands, should create two generations of
+    # the profile
+    nix-env -f ./user-envs.nix -i foo-1.0 "$@"
+    nix-env -f ./user-envs.nix -i foo-2.0pre1 "$@"
+    [[ $(nix-env --list-generations "$@" | wc -l) -eq 2 ]]
+
+    # Clear the profile history. There should be only one generation
+    # left
+    nix-collect-garbage -d
+    [[ $(nix-env --list-generations "$@" | wc -l) -eq 1 ]]
+}
+
+testCollectGarbageD
+
+# Run the same test, but forcing the profiles an arbitrary location.
+rm ~/.nix-profile
+ln -s $TEST_ROOT/blah ~/.nix-profile
+testCollectGarbageD
+
+# Run the same test, but forcing the profiles at their legacy location under
+# /nix/var/nix.
+#
+# Note that we *don't* use the default profile; `nix-collect-garbage` will
+# need to check the legacy conditional unconditionally not just follow
+# `~/.nix-profile` to pass this test.
+#
+# Regression test for #8294
+rm ~/.nix-profile
+testCollectGarbageD --profile "$NIX_STATE_DIR/profiles/per-user/me"