Adds test cases demonstrating that HpackEncoder will emit a comma-delimited value as a single HPACK entry.

gfe-relnote: n/a (test only)
PiperOrigin-RevId: 284992107
Change-Id: I61df44dea58630412ac6065cde91d30dc6c506e1

spdy/core/hpack/hpack_encoder_test.cc

diff --git a/spdy/core/hpack/hpack_encoder_test.cc b/spdy/core/hpack/hpack_encoder_test.cc
index 9df4f26..9a73a88 100644
--- a/spdy/core/hpack/hpack_encoder_test.cc
+++ b/spdy/core/hpack/hpack_encoder_test.cc
@@ -307,6 +307,13 @@
   CompareWithExpectedEncoding(headers);
 }
 
+TEST_P(HpackEncoderTest, MultiValuedHeadersNotCrumbled) {
+  ExpectIndexedLiteral("foo", "bar, baz");
+  SpdyHeaderBlock headers;
+  headers["foo"] = "bar, baz";
+  CompareWithExpectedEncoding(headers);
+}
+
 TEST_P(HpackEncoderTest, StringsDynamicallySelectHuffmanCoding) {
   // Compactable string. Uses Huffman coding.
   peer_.EmitString("feedbeef");
@@ -343,12 +350,14 @@
     ExpectNonIndexedLiteral("hello", "goodbye");
     ExpectNonIndexedLiteral("hello", "aloha");
   }
+  ExpectNonIndexedLiteral("multivalue", "value1, value2");
 
   SpdyHeaderBlock headers;
   headers[":path"] = "/index.html";
   headers["cookie"] = "foo=bar; baz=bing";
   headers["hello"] = "goodbye";
   headers.AppendValueOrAddHeader("hello", "aloha");
+  headers["multivalue"] = "value1, value2";
 
   CompareWithExpectedEncoding(headers);
 
@@ -359,13 +368,15 @@
         headers_observed_,
         ElementsAre(Pair(":path", "/index.html"), Pair("cookie", "foo=bar"),
                     Pair("cookie", "baz=bing"),
-                    Pair("hello", std::string("goodbye\0aloha", 13))));
+                    Pair("hello", std::string("goodbye\0aloha", 13)),
+                    Pair("multivalue", "value1, value2")));
   } else {
     EXPECT_THAT(
         headers_observed_,
         ElementsAre(Pair(":path", "/index.html"), Pair("cookie", "foo=bar"),
                     Pair("cookie", "baz=bing"), Pair("hello", "goodbye"),
-                    Pair("hello", "aloha")));
+                    Pair("hello", "aloha"),
+                    Pair("multivalue", "value1, value2")));
   }
 }