Add basic tests for 'nix profile'

Fixes #6193.

tests/local.mk

@@ -92,7 +92,8 @@ nix_tests = \
   bash-profile.sh \
   pass-as-file.sh \
   describe-stores.sh \
-  store-ping.sh
+  store-ping.sh \
+  nix-profile.sh
 
 ifeq ($(HAVE_LIBCPUID), 1)
 	nix_tests += compute-levels.sh

tests/nix-profile.sh

@@ -0,0 +1,68 @@
+source common.sh
+
+clearStore
+clearProfiles
+
+# Make a flake.
+flake1Dir=$TEST_ROOT/flake1
+mkdir -p $flake1Dir
+
+cat > $flake1Dir/flake.nix <<EOF
+{
+  description = "Bla bla";
+
+  outputs = { self }: with import ./config.nix; rec {
+    packages.$system.default = mkDerivation {
+      name = "simple-\${builtins.readFile ./version}";
+      builder = builtins.toFile "builder.sh"
+        ''
+          mkdir -p \$out/bin
+          cat > \$out/bin/hello <<EOF
+          #! ${shell}
+          echo Hello \${builtins.readFile ./who}
+          EOF
+          chmod +x \$out/bin/hello
+        '';
+    };
+  };
+}
+EOF
+
+printf World > $flake1Dir/who
+printf 1.0 > $flake1Dir/version
+
+cp ./config.nix $flake1Dir/
+
+# Test upgrading from nix-env.
+nix-env -f ./user-envs.nix -i foo-1.0
+nix profile list | grep '0 - - .*-foo-1.0'
+nix profile install $flake1Dir -L
+[[ $($TEST_HOME/.nix-profile/bin/hello) = "Hello World" ]]
+nix profile history
+nix profile history | grep "packages.$system.default: ∅ -> 1.0"
+nix profile diff-closures | grep 'env-manifest.nix: ε → ∅'
+
+# Test upgrading a package.
+printf NixOS > $flake1Dir/who
+printf 2.0 > $flake1Dir/version
+nix profile upgrade 1
+[[ $($TEST_HOME/.nix-profile/bin/hello) = "Hello NixOS" ]]
+nix profile history | grep "packages.$system.default: 1.0 -> 2.0"
+
+# Test 'history', 'diff-closures'.
+nix profile diff-closures
+
+# Test rollback.
+nix profile rollback
+[[ $($TEST_HOME/.nix-profile/bin/hello) = "Hello World" ]]
+
+# Test uninstall.
+[ -e $TEST_HOME/.nix-profile/bin/foo ]
+nix profile remove 0
+(! [ -e $TEST_HOME/.nix-profile/bin/foo ])
+nix profile history | grep 'foo: 1.0 -> ∅'
+nix profile diff-closures | grep 'Version 3 -> 4'
+
+# Test wipe-history.
+nix profile wipe-history
+[[ $(nix profile history | grep Version | wc -l) -eq 1 ]]

tests/user-envs.sh

@@ -9,7 +9,6 @@ clearProfiles
 # Query installed: should be empty.
 test "$(nix-env -p $profiles/test -q '*' | wc -l)" -eq 0
 
-mkdir -p $TEST_HOME
 nix-env --switch-profile $profiles/test
 
 # Query available: should contain several.