1 files changed, 43 insertions, 0 deletions
diff --git a/src/internal/poll/fd_posix_test.go b/src/internal/poll/fd_posix_test.go
new file mode 100644
index 0000000..b97e465
--- /dev/null
+++ b/src/internal/poll/fd_posix_test.go
@@ -0,0 +1,43 @@
+// Copyright 2012 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 || windows
+
+package poll_test
+
+import (
+	. "internal/poll"
+	"io"
+	"testing"
+)
+
+var eofErrorTests = []struct {
+	n        int
+	err      error
+	fd       *FD
+	expected error
+}{
+	{100, nil, &FD{ZeroReadIsEOF: true}, nil},
+	{100, io.EOF, &FD{ZeroReadIsEOF: true}, io.EOF},
+	{100, ErrNetClosing, &FD{ZeroReadIsEOF: true}, ErrNetClosing},
+	{0, nil, &FD{ZeroReadIsEOF: true}, io.EOF},
+	{0, io.EOF, &FD{ZeroReadIsEOF: true}, io.EOF},
+	{0, ErrNetClosing, &FD{ZeroReadIsEOF: true}, ErrNetClosing},
+
+	{100, nil, &FD{ZeroReadIsEOF: false}, nil},
+	{100, io.EOF, &FD{ZeroReadIsEOF: false}, io.EOF},
+	{100, ErrNetClosing, &FD{ZeroReadIsEOF: false}, ErrNetClosing},
+	{0, nil, &FD{ZeroReadIsEOF: false}, nil},
+	{0, io.EOF, &FD{ZeroReadIsEOF: false}, io.EOF},
+	{0, ErrNetClosing, &FD{ZeroReadIsEOF: false}, ErrNetClosing},
+}
+
+func TestEOFError(t *testing.T) {
+	for _, tt := range eofErrorTests {
+		actual := tt.fd.EOFError(tt.n, tt.err)
+		if actual != tt.expected {
+			t.Errorf("eofError(%v, %v, %v): expected %v, actual %v", tt.n, tt.err, tt.fd.ZeroReadIsEOF, tt.expected, actual)
+		}
+	}
+}