hs-test: use consistent naming convention

Exported indentifiers in Go start with capital letters. Only few fields
in hs-test, which are being unmarshaled from yaml are required to be
exported. Every other field name or method name should start with
lower-case letter, to be consistent with this naming convention.

Type: test
Signed-off-by: Maros Ondrejicka <mondreji@cisco.com>
Change-Id: I7eab0eef9fd08a7890c77b6ce1aeb3fa4b80f3cd
diff --git a/extras/hs-test/proxy_test.go b/extras/hs-test/proxy_test.go
index 784e527..a7a6509 100644
--- a/extras/hs-test/proxy_test.go
+++ b/extras/hs-test/proxy_test.go
@@ -35,7 +35,7 @@
 		" --retry-on-http-error=503 --tries=10"+
 		" -O %s %s:555/%s",
 		outputFile,
-		clientVeth.IP4AddressString(),
+		clientVeth.ip4AddressString(),
 		srcFile,
 	)
 	s.log(c)
@@ -56,8 +56,8 @@
 	testVppProxy := s.getContainerByName("vpp").vppInstance
 	output := testVppProxy.vppctl(
 		"test proxy server server-uri tcp://%s/555 client-uri tcp://%s/666",
-		clientVeth.IP4AddressString(),
-		serverVeth.Peer().IP4AddressString(),
+		clientVeth.ip4AddressString(),
+		serverVeth.peer.ip4AddressString(),
 	)
 	s.log("proxy configured...", output)
 }
@@ -76,7 +76,7 @@
 	address := struct {
 		Server string
 	}{
-		Server: serverVeth.Peer().IP4AddressString(),
+		Server: serverVeth.peer.ip4AddressString(),
 	}
 	envoyContainer.createConfig(
 		"/etc/envoy/envoy.yaml",