initial middleware refactor

pkg/bencode/encoder_test.go

@@ -0,0 +1,71 @@
+// Copyright 2016 The Chihaya Authors. All rights reserved.
+// Use of this source code is governed by the BSD 2-Clause license,
+// which can be found in the LICENSE file.
+
+package bencode
+
+import (
+	"bytes"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+)
+
+var marshalTests = []struct {
+	input    interface{}
+	expected []string
+}{
+	{int(42), []string{"i42e"}},
+	{int(-42), []string{"i-42e"}},
+	{uint(43), []string{"i43e"}},
+	{int64(44), []string{"i44e"}},
+	{uint64(45), []string{"i45e"}},
+	{int16(44), []string{"i44e"}},
+	{uint16(45), []string{"i45e"}},
+
+	{"example", []string{"7:example"}},
+	{[]byte("example"), []string{"7:example"}},
+	{30 * time.Minute, []string{"i1800e"}},
+
+	{[]string{"one", "two"}, []string{"l3:one3:twoe", "l3:two3:onee"}},
+	{[]interface{}{"one", "two"}, []string{"l3:one3:twoe", "l3:two3:onee"}},
+	{[]string{}, []string{"le"}},
+
+	{map[string]interface{}{"one": "aa", "two": "bb"}, []string{"d3:one2:aa3:two2:bbe", "d3:two2:bb3:one2:aae"}},
+	{map[string]interface{}{}, []string{"de"}},
+}
+
+func TestMarshal(t *testing.T) {
+	for _, test := range marshalTests {
+		got, err := Marshal(test.input)
+		assert.Nil(t, err, "marshal should not fail")
+		assert.Contains(t, test.expected, string(got), "the marshaled result should be one of the expected permutations")
+	}
+}
+
+func BenchmarkMarshalScalar(b *testing.B) {
+	buf := &bytes.Buffer{}
+	encoder := NewEncoder(buf)
+
+	for i := 0; i < b.N; i++ {
+		encoder.Encode("test")
+		encoder.Encode(123)
+	}
+}
+
+func BenchmarkMarshalLarge(b *testing.B) {
+	data := map[string]interface{}{
+		"k1": []string{"a", "b", "c"},
+		"k2": 42,
+		"k3": "val",
+		"k4": uint(42),
+	}
+
+	buf := &bytes.Buffer{}
+	encoder := NewEncoder(buf)
+
+	for i := 0; i < b.N; i++ {
+		encoder.Encode(data)
+	}
+}