Add http2 test for small http max frame size

1 files changed, 33 insertions, 0 deletions

diff --git a/tools/http2_interop/s6.5.go b/tools/http2_interop/s6.5.go
new file mode 100644
index 0000000000..8145b6e031
--- /dev/null
+++ b/tools/http2_interop/s6.5.go
@@ -0,0 +1,33 @@
+package http2interop
+
+import (
+	"time"
+)
+
+// Section 6.5 says the minimum SETTINGS_MAX_FRAME_SIZE is 16,384
+func testSmallMaxFrameSize(ctx *HTTP2InteropCtx) error {
+	conn, err := connect(ctx)
+	if err != nil {
+		return err
+	}
+	defer conn.Close()
+	conn.Log = ctx.T.Log
+	conn.SetDeadline(time.Now().Add(defaultTimeout))
+
+	sf := &SettingsFrame{
+		Params: []SettingsParameter{{
+			Identifier: SettingsMaxFrameSize,
+			Value:      1<<14 - 1, // 1 less than the smallest maximum
+		}},
+	}
+
+	if err := http2Connect(conn, sf); err != nil {
+		return err
+	}
+
+	if _, err := expectGoAwaySoon(conn); err != nil {
+		return err
+	}
+
+	return nil
+}