tests: check re-locking of generated flakes and git+file: references

Deploying the same sources twice doesn't show whether generated flakes get
locked again, and the git scenarios' results are the same whether a Git
work tree is referred to as git+file: or path:.  A feature scenario
changes what a source contains between two deploys, and the git
scenarios check the reference.

2 files changed, 28 insertions, 0 deletions

diff --git a/tests/fixtures.sh b/tests/fixtures.sh
index 1b39b45..833df77 100755
--- a/tests/fixtures.sh
+++ b/tests/fixtures.sh
@@ -252,6 +252,12 @@ SH
 chmod +x /fixtures/pipe2
 echo piped > /fixtures/pipe2-data
 
+# alt2: like alt, with other outputs, to change a source to.
+mkdir /fixtures/alt2
+cat > /fixtures/alt2/flake.nix <<'NIX'
+{ outputs = _: { greeting = "alt2"; who = "alt2"; }; }
+NIX
+
 # noflake: a directory without flake.nix.
 mkdir /fixtures/noflake
 echo noflake > /fixtures/noflake/README
diff --git a/tests/scenarios.nix b/tests/scenarios.nix
index eb6bbec..e56cb13 100644
--- a/tests/scenarios.nix
+++ b/tests/scenarios.nix
@@ -358,6 +358,8 @@ assert !(krops.isLocalTarget (targets.remote "/"));
       }
       test -e "$T"/x/two || fail "two missing"
     '' + optionalString flags.inputs ''
+      grep -q '"git+file:' "$T"/.populate/flakes/x/flake.nix ||
+        fail "the Git work tree isn't referred to as git+file:"
       gc
       expect_eq msg "$(nix_eval "$T"/.populate/flakes/x#msg)" git:alt
     '';
@@ -559,6 +561,26 @@ assert !(krops.isLocalTarget (targets.remote "/"));
         '';
       };
     })
+    # A generated flake gets locked again when a source it draws from
+    # changes.
+    (s "relock" (let
+      x.file = { path = "/fixtures/filesrc"; inputs.dep.follows = "a"; };
+    in {
+      phases = [
+        {
+          sources = { inherit x; a.file = "/fixtures/alt"; };
+          check = ''
+            expect_eq msg "$(nix_eval_online "$T"/.populate/flakes/x#msg)" top:alt,sub
+          '';
+        }
+        {
+          sources = { inherit x; a.file = "/fixtures/alt2"; };
+          check = ''
+            expect_eq msg "$(nix_eval_online "$T"/.populate/flakes/x#msg)" top:alt2,sub
+          '';
+        }
+      ];
+    }))
     # A generated flake gets removed once its source draws no inputs anymore.
     (s "removal" {
       phases = [