1 files changed, 45 insertions, 0 deletions
diff --git a/src/os/exec_unix_test.go b/src/os/exec_unix_test.go
new file mode 100644
index 0000000..2604519
--- /dev/null
+++ b/src/os/exec_unix_test.go
@@ -0,0 +1,45 @@
+// Copyright 2020 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build unix
+
+package os_test
+
+import (
+	"internal/testenv"
+	. "os"
+	"syscall"
+	"testing"
+)
+
+func TestErrProcessDone(t *testing.T) {
+	testenv.MustHaveGoBuild(t)
+	t.Parallel()
+
+	p, err := StartProcess(testenv.GoToolPath(t), []string{"go"}, &ProcAttr{})
+	if err != nil {
+		t.Errorf("starting test process: %v", err)
+	}
+	p.Wait()
+	if got := p.Signal(Kill); got != ErrProcessDone {
+		t.Errorf("got %v want %v", got, ErrProcessDone)
+	}
+}
+
+func TestUNIXProcessAlive(t *testing.T) {
+	testenv.MustHaveGoBuild(t)
+	t.Parallel()
+
+	p, err := StartProcess(testenv.GoToolPath(t), []string{"sleep", "1"}, &ProcAttr{})
+	if err != nil {
+		t.Skipf("starting test process: %v", err)
+	}
+	defer p.Kill()
+
+	proc, _ := FindProcess(p.Pid)
+	err = proc.Signal(syscall.Signal(0))
+	if err != nil {
+		t.Errorf("OS reported error for running process: %v", err)
+	}
+}