diff options
Diffstat (limited to 'pkg/flipcall/flipcall_test.go')
| -rw-r--r-- | pkg/flipcall/flipcall_test.go | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/pkg/flipcall/flipcall_test.go b/pkg/flipcall/flipcall_test.go index 435e4eeae..168a487ec 100644 --- a/pkg/flipcall/flipcall_test.go +++ b/pkg/flipcall/flipcall_test.go @@ -62,6 +62,9 @@ func (c *testConnection) destroy() { } func testSendRecv(t *testing.T, c *testConnection) { + // This shared variable is used to confirm that synchronization between + // flipcall endpoints is visible to the Go race detector. + state := 0 var serverRun sync.WaitGroup serverRun.Add(1) go func() { @@ -71,11 +74,19 @@ func testSendRecv(t *testing.T, c *testConnection) { t.Errorf("server Endpoint.RecvFirst() failed: %v", err) return } + state++ + if state != 2 { + t.Errorf("shared state counter: got %d, wanted 2", state) + } t.Logf("server Endpoint got packet 1, sending packet 2 and waiting for packet 3") if _, err := c.serverEP.SendRecv(0); err != nil { t.Errorf("server Endpoint.SendRecv() failed: %v", err) return } + state++ + if state != 4 { + t.Errorf("shared state counter: got %d, wanted 4", state) + } t.Logf("server Endpoint got packet 3") }() defer func() { @@ -89,10 +100,18 @@ func testSendRecv(t *testing.T, c *testConnection) { if err := c.clientEP.Connect(); err != nil { t.Fatalf("client Endpoint.Connect() failed: %v", err) } + state++ + if state != 1 { + t.Errorf("shared state counter: got %d, wanted 1", state) + } t.Logf("client Endpoint sending packet 1 and waiting for packet 2") if _, err := c.clientEP.SendRecv(0); err != nil { t.Fatalf("client Endpoint.SendRecv() failed: %v", err) } + state++ + if state != 3 { + t.Errorf("shared state counter: got %d, wanted 3", state) + } t.Logf("client Endpoint got packet 2, sending packet 3") if err := c.clientEP.SendLast(0); err != nil { t.Fatalf("client Endpoint.SendLast() failed: %v", err) |