testing: migrate flakes/flakes.sh (part 6)

flake attr matching

Change-Id: If5a1f01f9939740636482d2755eb836e2166ce97

tests/functional/flakes/flakes.sh

@@ -77,10 +77,6 @@ nix registry add --registry $registry nixpkgs flake1
 nix registry list | grep        '^global'
 nix registry list | grepInverse '^user' # nothing in user registry
 
-# Test fuzzy and exact flake attribute syntax.
-expectStderr 1 nix eval flake1#ERROR | grepQuiet "error:.*does not provide attribute.*or 'ERROR'$"
-expectStderr 1 nix eval flake1#.ERROR | grepQuiet "error:.*does not provide attribute 'ERROR'$"
-
 json=$(nix flake metadata flake1 --json | jq .)
 hash1=$(echo "$json" | jq -r .revision)
 
@@ -336,10 +332,6 @@ git -C $flake3Dir add flake.nix flake.lock
 git -C $flake3Dir commit -m 'Remove packages.xyzzy'
 git -C $flake3Dir checkout master
 
-# Test whether fuzzy-matching works for registry entries.
-(! nix build -o $TEST_ROOT/result flake4/removeXyzzy#xyzzy)
-nix build -o $TEST_ROOT/result flake4/removeXyzzy#sth
-
 # Testing the nix CLI
 nix registry add flake1 flake3
 [[ $(nix registry list | wc -l) == 6 ]]

tests/functional2/flakes/test_cli.py

@@ -125,6 +125,47 @@ def registry(nix: Nix, flake1: Path, flake2: Path, flake3: Path) -> Path:
     return registry
 
 
+@pytest.mark.usefixtures("registry")
+class TestAttrMatch:
+    def test_fuzzy_plain(self, nix: Nix):
+        logs = nix.nix(["eval", "flake1#ERROR"]).run().expect(1).stderr_s
+        assert re.search(r"error:.*does not provide attribute.*or 'ERROR'$", logs)
+
+    def test_exact_plain(self, nix: Nix):
+        logs = nix.nix(["eval", "flake1#.ERROR"]).run().expect(1).stderr_s
+        assert re.search(r"error:.*does not provide attribute 'ERROR'$", logs)
+
+    def test_fuzzy_branch(self, nix: Nix):
+        path = nix.nix(["eval", "flake1/main#foo"]).run().ok().stdout_s
+        assert "-simple.drv" in path
+
+    class TestRegistryBranch:
+        @pytest.fixture(autouse=True)
+        def create_other_branch(self, flake1: Path, git: Git):
+            git(flake1, "checkout", "-b", "other")
+            (flake1 / "flake.nix").write_text(
+                (flake1 / "flake.nix").read_text().replace("foo", "bar")
+            )
+            git(flake1, "commit", "-a", "-mrename foo -> bar")
+            git(flake1, "checkout", "main")
+
+        def test_fuzzy_main_branch(self, nix: Nix):
+            assert (
+                "flake 'flake:flake1/main' does not provide attribute"
+                in nix.nix(["eval", "flake1/main#bar"]).run().expect(1).stderr_s
+            )
+            path = nix.nix(["eval", "flake1/main#foo"]).run().ok().stdout_s
+            assert "-simple.drv" in path
+
+        def test_fuzzy_other_branch(self, nix: Nix):
+            assert (
+                "flake 'flake:flake1/other' does not provide attribute"
+                in nix.nix(["eval", "flake1/other#foo"]).run().expect(1).stderr_s
+            )
+            path = nix.nix(["eval", "flake1/other#bar"]).run().ok().stdout_s
+            assert "-simple.drv" in path
+
+
 @pytest.mark.usefixtures("registry")
 class TestBuild:
     def test_bare_repo(self, nix: Nix, flake1: Path, git: Git):