Isolate signal test to UNIX only

_integration-tests/gls/access_test.go

@@ -6,11 +6,8 @@
 package gls
 
 import (
-	"os"
-	"os/signal"
 	"runtime"
 	"sync"
-	"syscall"
 	"testing"
 
 	"github.com/stretchr/testify/require"
@@ -46,38 +43,6 @@ func TestCGO(t *testing.T) {
 	require.Equal(t, expected, get())
 }
 
-// TestSignal tests that the GLS is correctly set even when the code comes from a signal handler.
-func TestSignal(t *testing.T) {
-	if !orchestrionEnabled {
-		t.Skip("Orchestrion is not enabled")
-	}
-
-	expected := "I am inside a signal handler"
-
-	set(nil)
-
-	doneSigChan := make(chan struct{}, 1)
-	checkChan := make(chan struct{}, 1)
-	doneCheckChan := make(chan struct{}, 1)
-	sigChan := make(chan os.Signal, 1)
-	signal.Notify(sigChan, syscall.SIGUSR1)
-
-	go func() {
-		<-sigChan
-		set(expected)
-		doneSigChan <- struct{}{}
-
-		<-checkChan
-		require.Equal(t, expected, get())
-		doneCheckChan <- struct{}{}
-	}()
-
-	syscall.Kill(syscall.Getpid(), syscall.SIGUSR1)
-	<-doneSigChan
-	checkChan <- struct{}{}
-	<-doneCheckChan
-}
-
 func TestConcurrency(t *testing.T) {
 	if !orchestrionEnabled {
 		t.Skip("Orchestrion is not enabled")

_integration-tests/gls/access_unix_test.go

@@ -0,0 +1,49 @@
+// Unless explicitly stated otherwise all files in this repository are licensed
+// under the Apache License Version 2.0.
+// This product includes software developed at Datadog (https://www.datadoghq.com/).
+// Copyright 2023-present Datadog, Inc.
+
+//go:build unix
+
+package gls
+
+import (
+	"os"
+	"os/signal"
+	"syscall"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+// TestSignal tests that the GLS is correctly set even when the code comes from a signal handler.
+func TestSignal(t *testing.T) {
+	if !orchestrionEnabled {
+		t.Skip("Orchestrion is not enabled")
+	}
+
+	expected := "I am inside a signal handler"
+
+	set(nil)
+
+	doneSigChan := make(chan struct{}, 1)
+	checkChan := make(chan struct{}, 1)
+	doneCheckChan := make(chan struct{}, 1)
+	sigChan := make(chan os.Signal, 1)
+	signal.Notify(sigChan, syscall.SIGUSR1)
+
+	go func() {
+		<-sigChan
+		set(expected)
+		doneSigChan <- struct{}{}
+
+		<-checkChan
+		require.Equal(t, expected, get())
+		doneCheckChan <- struct{}{}
+	}()
+
+	syscall.Kill(syscall.Getpid(), syscall.SIGUSR1)
+	<-doneSigChan
+	checkChan <- struct{}{}
+	<-doneCheckChan
+}