10 files changed, 25 insertions, 1 deletions
diff --git a/internal/app/app_test.go b/internal/app/app_test.go
index 01421528..2f42f70a 100644
--- a/internal/app/app_test.go
+++ b/internal/app/app_test.go
@@ -28,6 +28,7 @@ import (
 )
 
 func TestApp(t *testing.T) {
+	t.Parallel()
 	msg := message.NewMsg(nil)
 	msg.SwapVerbose(testing.Verbose())
 
@@ -445,6 +446,7 @@ func TestApp(t *testing.T) {
 
 	for _, tc := range testCases {
 		t.Run(tc.name, func(t *testing.T) {
+			t.Parallel()
 			gr, gw := io.Pipe()
 
 			var gotSys *system.I
diff --git a/internal/app/dispatcher_test.go b/internal/app/dispatcher_test.go
index b39986f2..3e608c3f 100644
--- a/internal/app/dispatcher_test.go
+++ b/internal/app/dispatcher_test.go
@@ -77,6 +77,7 @@ func checkOpBehaviour(t *testing.T, testCases []opBehaviourTestCase) {
 	for _, tc := range testCases {
 		t.Run(tc.name, func(t *testing.T) {
 			t.Helper()
+			t.Parallel()
 
 			wantCallsFull := slices.Concat(wantNewState, tc.toSystem, []stub.Call{{Name: stub.CallSeparator}})
 			if tc.wantErrSystem == nil {
diff --git a/internal/app/env_test.go b/internal/app/env_test.go
index b28c1568..9e2c959e 100644
--- a/internal/app/env_test.go
+++ b/internal/app/env_test.go
@@ -13,6 +13,8 @@ import (
 )
 
 func TestEnvPaths(t *testing.T) {
+	t.Parallel()
+
 	testCases := []struct {
 		name string
 		env  *EnvPaths
@@ -48,6 +50,7 @@ func TestEnvPaths(t *testing.T) {
 	}
 	for _, tc := range testCases {
 		t.Run(tc.name, func(t *testing.T) {
+			t.Parallel()
 			if tc.wantPanic != "" {
 				defer func() {
 					if r := recover(); r != tc.wantPanic {
@@ -66,6 +69,8 @@ func TestEnvPaths(t *testing.T) {
 }
 
 func TestCopyPaths(t *testing.T) {
+	t.Parallel()
+
 	testCases := []struct {
 		name  string
 		env   map[string]string
@@ -84,6 +89,7 @@ func TestCopyPaths(t *testing.T) {
 	}
 	for _, tc := range testCases {
 		t.Run(tc.name, func(t *testing.T) {
+			t.Parallel()
 			if tc.fatal != "" {
 				defer stub.HandleExit(t)
 			}
diff --git a/internal/app/outcome_test.go b/internal/app/outcome_test.go
index 183dbfd4..53c8958d 100644
--- a/internal/app/outcome_test.go
+++ b/internal/app/outcome_test.go
@@ -8,6 +8,8 @@ import (
 )
 
 func TestOutcomeStateValid(t *testing.T) {
+	t.Parallel()
+
 	testCases := []struct {
 		name string
 		s    *outcomeState
@@ -23,6 +25,7 @@ func TestOutcomeStateValid(t *testing.T) {
 	}
 	for _, tc := range testCases {
 		t.Run(tc.name, func(t *testing.T) {
+			t.Parallel()
 			if got := tc.s.valid(); got != tc.want {
 				t.Errorf("valid: %v, want %v", got, tc.want)
 			}
diff --git a/internal/app/path_test.go b/internal/app/path_test.go
index b01d73c4..1f2d8fa6 100644
--- a/internal/app/path_test.go
+++ b/internal/app/path_test.go
@@ -5,6 +5,8 @@ import (
 )
 
 func TestDeepContainsH(t *testing.T) {
+	t.Parallel()
+
 	testCases := []struct {
 		name     string
 		basepath string
@@ -75,6 +77,7 @@ func TestDeepContainsH(t *testing.T) {
 
 	for _, tc := range testCases {
 		t.Run(tc.name, func(t *testing.T) {
+			t.Parallel()
 			if got, err := deepContainsH(tc.basepath, tc.targpath); (err != nil) != tc.wantErr {
 				t.Errorf("deepContainsH() error = %v, wantErr %v", err, tc.wantErr)
 			} else if got != tc.want {
diff --git a/internal/app/spaccount_test.go b/internal/app/spaccount_test.go
index a587c122..7ebda46f 100644
--- a/internal/app/spaccount_test.go
+++ b/internal/app/spaccount_test.go
@@ -12,6 +12,7 @@ import (
 )
 
 func TestSpAccountOp(t *testing.T) {
+	t.Parallel()
 	config := hst.Template()
 
 	checkOpBehaviour(t, []opBehaviourTestCase{
diff --git a/internal/app/spcontainer_test.go b/internal/app/spcontainer_test.go
index d5bb6d0e..6d5713cf 100644
--- a/internal/app/spcontainer_test.go
+++ b/internal/app/spcontainer_test.go
@@ -19,6 +19,7 @@ import (
 )
 
 func TestSpParamsOp(t *testing.T) {
+	t.Parallel()
 	config := hst.Template()
 
 	checkOpBehaviour(t, []opBehaviourTestCase{
@@ -422,5 +423,5 @@ type invalidFSHost bool
 func (f invalidFSHost) Valid() bool           { return bool(f) }
 func (invalidFSHost) Path() *check.Absolute   { panic("unreachable") }
 func (invalidFSHost) Host() []*check.Absolute { return []*check.Absolute{nil} }
-func (invalidFSHost) Apply(z *hst.ApplyState) { panic("unreachable") }
+func (invalidFSHost) Apply(*hst.ApplyState)   { panic("unreachable") }
 func (invalidFSHost) String() string          { panic("unreachable") }
diff --git a/internal/app/sysconf_test.go b/internal/app/sysconf_test.go
index b73f2d08..fb0c7f8a 100644
--- a/internal/app/sysconf_test.go
+++ b/internal/app/sysconf_test.go
@@ -7,6 +7,8 @@ const (
 )
 
 func TestSysconf(t *testing.T) {
+	t.Parallel()
+
 	t.Run("LOGIN_NAME_MAX", func(t *testing.T) {
 		if got := sysconf(_SC_LOGIN_NAME_MAX); got < _POSIX_LOGIN_NAME_MAX {
 			t.Errorf("sysconf(_SC_LOGIN_NAME_MAX): %d < _POSIX_LOGIN_NAME_MAX", got)
diff --git a/internal/app/username_test.go b/internal/app/username_test.go
index 15f15a4c..1b2e0459 100644
--- a/internal/app/username_test.go
+++ b/internal/app/username_test.go
@@ -6,6 +6,8 @@ import (
 )
 
 func TestIsValidUsername(t *testing.T) {
+	t.Parallel()
+
 	t.Run("long", func(t *testing.T) {
 		if isValidUsername(strings.Repeat("a", sysconf(_SC_LOGIN_NAME_MAX))) {
 			t.Errorf("isValidUsername unexpected true")
diff --git a/internal/path_test.go b/internal/path_test.go
index cb4571ef..5bcdd851 100644
--- a/internal/path_test.go
+++ b/internal/path_test.go
@@ -8,6 +8,8 @@ import (
 )
 
 func TestMustCheckPath(t *testing.T) {
+	t.Parallel()
+
 	testCases := []struct {
 		name      string
 		pathname  string
@@ -20,6 +22,7 @@ func TestMustCheckPath(t *testing.T) {
 	}
 	for _, tc := range testCases {
 		t.Run(tc.name, func(t *testing.T) {
+			t.Parallel()
 			fatal := func(v ...any) { t.Fatal(append([]any{"invalid call to fatal:"}, v...)...) }
 			if tc.wantFatal != "" {
 				fatal = func(v ...any) {