all: move examples into package *_test.

Fixes #5677.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/11992043

src/pkg/crypto/des/des_test.go

@@ -1504,24 +1504,6 @@ func TestSubstitutionTableKnownAnswerDecrypt(t *testing.T) {
 	}
 }
 
-func ExampleNewTripleDESCipher() {
-	// NewTripleDESCipher can also be used when EDE2 is required by
-	// duplicating the first 8 bytes of the 16-byte key.
-	ede2Key := []byte("example key 1234")
-
-	var tripleDESKey []byte
-	tripleDESKey = append(tripleDESKey, ede2Key[:16]...)
-	tripleDESKey = append(tripleDESKey, ede2Key[:8]...)
-
-	_, err := NewTripleDESCipher(tripleDESKey)
-	if err != nil {
-		panic(err)
-	}
-
-	// See crypto/cipher for how to use a cipher.Block for encryption and
-	// decryption.
-}
-
 func BenchmarkEncrypt(b *testing.B) {
 	tt := encryptDESTests[0]
 	c, err := NewCipher(tt.key)

src/pkg/crypto/des/example_test.go

@@ -0,0 +1,25 @@
+// Copyright 2013 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package des_test
+
+import "crypto/des"
+
+func ExampleNewTripleDESCipher() {
+	// NewTripleDESCipher can also be used when EDE2 is required by
+	// duplicating the first 8 bytes of the 16-byte key.
+	ede2Key := []byte("example key 1234")
+
+	var tripleDESKey []byte
+	tripleDESKey = append(tripleDESKey, ede2Key[:16]...)
+	tripleDESKey = append(tripleDESKey, ede2Key[:8]...)
+
+	_, err := des.NewTripleDESCipher(tripleDESKey)
+	if err != nil {
+		panic(err)
+	}
+
+	// See crypto/cipher for how to use a cipher.Block for encryption and
+	// decryption.
+}

src/pkg/crypto/md5/example_test.go

@@ -0,0 +1,19 @@
+// Copyright 2013 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package md5_test
+
+import (
+	"crypto/md5"
+	"fmt"
+	"io"
+)
+
+func ExampleNew() {
+	h := md5.New()
+	io.WriteString(h, "The fog is getting thicker!")
+	io.WriteString(h, "And Leon's getting laaarger!")
+	fmt.Printf("%x", h.Sum(nil))
+	// Output: e2c569be17396eca2a2e3c11578123ed
+}

src/pkg/crypto/md5/md5_test.go

@@ -105,14 +105,6 @@ func TestLarge(t *testing.T) {
 	}
 }
 
-func ExampleNew() {
-	h := New()
-	io.WriteString(h, "The fog is getting thicker!")
-	io.WriteString(h, "And Leon's getting laaarger!")
-	fmt.Printf("%x", h.Sum(nil))
-	// Output: e2c569be17396eca2a2e3c11578123ed
-}
-
 var bench = New()
 var buf = make([]byte, 8192+1)
 var sum = make([]byte, bench.Size())

src/pkg/crypto/sha1/example_test.go

@@ -0,0 +1,18 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package sha1_test
+
+import (
+	"crypto/sha1"
+	"fmt"
+	"io"
+)
+
+func ExampleNew() {
+	h := sha1.New()
+	io.WriteString(h, "His money is twice tainted: 'taint yours and 'taint mine.")
+	fmt.Printf("% x", h.Sum(nil))
+	// Output: 59 7f 6a 54 00 10 f9 4c 15 d7 18 06 a9 9a 2c 87 10 e7 47 bd
+}

src/pkg/crypto/sha1/sha1_test.go

@@ -76,13 +76,6 @@ func TestGolden(t *testing.T) {
 	}
 }
 
-func ExampleNew() {
-	h := New()
-	io.WriteString(h, "His money is twice tainted: 'taint yours and 'taint mine.")
-	fmt.Printf("% x", h.Sum(nil))
-	// Output: 59 7f 6a 54 00 10 f9 4c 15 d7 18 06 a9 9a 2c 87 10 e7 47 bd
-}
-
 var bench = New()
 var buf = make([]byte, 8192)