Merge pull request #74 from bio-routing/fix/conn_mock

added tests for conn mock

testing/BUILD.bazel

-load("@io_bazel_rules_go//go:def.bzl", "go_library")
+load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
 
 go_library(
     name = "go_default_library",
@@ -6,3 +6,10 @@ go_library(
     importpath = "github.com/bio-routing/bio-rd/testing",
     visibility = ["//visibility:public"],
 )
+
+go_test(
+    name = "go_default_test",
+    srcs = ["conn_mock_test.go"],
+    embed = [":go_default_library"],
+    deps = ["//vendor/github.com/stretchr/testify/assert:go_default_library"],
+)

testing/conn_mock_test.go

+package testing
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestWrite(t *testing.T) {
+	m := &MockConn{}
+
+	payload := []byte{1, 2, 3}
+	m.Write(payload)
+
+	assert.Equal(t, payload, m.Bytes)
+}
+
+func TestRead(t *testing.T) {
+	m := &MockConn{}
+
+	payload := []byte{1, 2, 3}
+	m.Bytes = payload
+
+	buffer := make([]byte, 4)
+	n, _ := m.Read(buffer)
+
+	assert.Equal(t, payload, buffer[:n])
+}