From ff12bea91c22bba93d3ffc3034d813d686bc7eeb Mon Sep 17 00:00:00 2001
From: Dmitry Vyukov <dvyukov@google.com>
Date: Mon, 23 Apr 2018 13:19:45 +0200
Subject: pkg/ipc: fix data race on config.Timeout

---
 pkg/ipc/ipc_test.go | 55 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)

(limited to 'pkg/ipc/ipc_test.go')

diff --git a/pkg/ipc/ipc_test.go b/pkg/ipc/ipc_test.go
index 0d90f2363..23f51f64e 100644
--- a/pkg/ipc/ipc_test.go
+++ b/pkg/ipc/ipc_test.go
@@ -100,3 +100,58 @@ func TestExecute(t *testing.T) {
 		}
 	}
 }
+
+func TestParallel(t *testing.T) {
+	target, _, _, configFlags := initTest(t)
+	bin := buildExecutor(t, target)
+	defer os.Remove(bin)
+	cfg := &Config{
+		Executor: bin,
+		Flags:    configFlags,
+	}
+	const P = 10
+	errs := make(chan error, P)
+	for p := 0; p < P; p++ {
+		go func() {
+			env, err := MakeEnv(cfg, 0)
+			if err != nil {
+				errs <- fmt.Errorf("failed to create env: %v", err)
+				return
+			}
+			defer env.Close()
+			p := target.GenerateSimpleProg()
+			opts := &ExecOpts{}
+			output, info, failed, hanged, err := env.Exec(opts, p)
+			if err != nil {
+				errs <- fmt.Errorf("failed to run executor: %v", err)
+				return
+			}
+			if hanged {
+				errs <- fmt.Errorf("program hanged:\n%s", output)
+				return
+			}
+			if failed {
+				errs <- fmt.Errorf("program failed:\n%s", output)
+				return
+			}
+			if len(info) == 0 {
+				errs <- fmt.Errorf("no calls executed:\n%s", output)
+				return
+			}
+			if info[0].Errno != 0 {
+				errs <- fmt.Errorf("simple call failed: %v\n%s", info[0].Errno, output)
+				return
+			}
+			if len(output) != 0 {
+				errs <- fmt.Errorf("output on empty program")
+				return
+			}
+			errs <- nil
+		}()
+	}
+	for p := 0; p < P; p++ {
+		if err := <-errs; err != nil {
+			t.Fatal(err)
+		}
+	}
+}
-- 
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