Rewrite QuicTypesTest.QuicIetfTransportErrorCodeString.

This test did not make any sense.  It enforced that internal QuicErrorCodes beyond
QUIC_PACKET_TOO_LARGE did not map to defined IETF on-the-wire error codes.  This
is contradictory to our efforts to send an IETF-compliant error code for each
QuicErrorCodes code.

gfe-relnote: n/a, test-only change.
PiperOrigin-RevId: 300394002
Change-Id: I054df8252e8ebb9238ff4fffab1b08632e5bba24
diff --git a/quic/core/quic_types_test.cc b/quic/core/quic_types_test.cc
index 63ebdb0..dc37c43 100644
--- a/quic/core/quic_types_test.cc
+++ b/quic/core/quic_types_test.cc
@@ -6,9 +6,9 @@
 
 #include <cstdint>
 
+#include "third_party/boringssl/src/include/openssl/ssl.h"
 #include "net/third_party/quiche/src/quic/core/quic_error_codes.h"
 #include "net/third_party/quiche/src/quic/platform/api/quic_test.h"
-#include "net/third_party/quiche/src/common/platform/api/quiche_str_cat.h"
 
 namespace quic {
 namespace test {
@@ -17,21 +17,43 @@
 class QuicTypesTest : public QuicTest {};
 
 TEST_F(QuicTypesTest, QuicIetfTransportErrorCodeString) {
-  // QuicIetfTransportErrorCode out of bound.
-  for (quic::QuicErrorCode error = quic::QUIC_PACKET_TOO_LARGE;
-       error < quic::QUIC_LAST_ERROR;
-       error = static_cast<quic::QuicErrorCode>(error + 1)) {
-    QuicErrorCodeToIetfMapping mapping =
-        QuicErrorCodeToTransportErrorCode(error);
-    if (mapping.is_transport_close_) {
-      EXPECT_EQ(QuicIetfTransportErrorCodeString(mapping.transport_error_code_),
-                quiche::QuicheStrCat(
-                    "Unknown(",
-                    static_cast<uint64_t>(mapping.transport_error_code_), ")"))
-          << " " << static_cast<uint64_t>(error) << " "
-          << QuicErrorCodeToString(error);
-    }
-  }
+  EXPECT_EQ("Private(65280)",
+            QuicIetfTransportErrorCodeString(
+                static_cast<quic::QuicIetfTransportErrorCodes>(0xff00u)));
+
+  EXPECT_EQ("CRYPTO_ERROR(missing extension)",
+            QuicIetfTransportErrorCodeString(
+                static_cast<quic::QuicIetfTransportErrorCodes>(
+                    CRYPTO_ERROR_FIRST + SSL_AD_MISSING_EXTENSION)));
+
+  EXPECT_EQ("NO_IETF_QUIC_ERROR",
+            QuicIetfTransportErrorCodeString(NO_IETF_QUIC_ERROR));
+  EXPECT_EQ("INTERNAL_ERROR", QuicIetfTransportErrorCodeString(INTERNAL_ERROR));
+  EXPECT_EQ("SERVER_BUSY_ERROR",
+            QuicIetfTransportErrorCodeString(SERVER_BUSY_ERROR));
+  EXPECT_EQ("FLOW_CONTROL_ERROR",
+            QuicIetfTransportErrorCodeString(FLOW_CONTROL_ERROR));
+  EXPECT_EQ("STREAM_LIMIT_ERROR",
+            QuicIetfTransportErrorCodeString(STREAM_LIMIT_ERROR));
+  EXPECT_EQ("STREAM_STATE_ERROR",
+            QuicIetfTransportErrorCodeString(STREAM_STATE_ERROR));
+  EXPECT_EQ("FINAL_SIZE_ERROR",
+            QuicIetfTransportErrorCodeString(FINAL_SIZE_ERROR));
+  EXPECT_EQ("FRAME_ENCODING_ERROR",
+            QuicIetfTransportErrorCodeString(FRAME_ENCODING_ERROR));
+  EXPECT_EQ("TRANSPORT_PARAMETER_ERROR",
+            QuicIetfTransportErrorCodeString(TRANSPORT_PARAMETER_ERROR));
+  EXPECT_EQ("CONNECTION_ID_LIMIT_ERROR",
+            QuicIetfTransportErrorCodeString(CONNECTION_ID_LIMIT_ERROR));
+  EXPECT_EQ("PROTOCOL_VIOLATION",
+            QuicIetfTransportErrorCodeString(PROTOCOL_VIOLATION));
+  EXPECT_EQ("INVALID_TOKEN", QuicIetfTransportErrorCodeString(INVALID_TOKEN));
+  EXPECT_EQ("CRYPTO_BUFFER_EXCEEDED",
+            QuicIetfTransportErrorCodeString(CRYPTO_BUFFER_EXCEEDED));
+
+  EXPECT_EQ("Unknown(1024)",
+            QuicIetfTransportErrorCodeString(
+                static_cast<quic::QuicIetfTransportErrorCodes>(0x400)));
 }
 
 }  // namespace