1 files changed, 42 insertions, 0 deletions
diff --git a/src/crypto/sha1/example_test.go b/src/crypto/sha1/example_test.go
new file mode 100644
index 0000000..499055c
--- /dev/null
+++ b/src/crypto/sha1/example_test.go
@@ -0,0 +1,42 @@
+// 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"
+	"log"
+	"os"
+)
+
+func ExampleNew() {
+	h := sha1.New()
+	io.WriteString(h, "His money is twice tainted:")
+	io.WriteString(h, " '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
+}
+
+func ExampleSum() {
+	data := []byte("This page intentionally left blank.")
+	fmt.Printf("% x", sha1.Sum(data))
+	// Output: af 06 49 23 bb f2 30 15 96 aa c4 c2 73 ba 32 17 8e bc 4a 96
+}
+
+func ExampleNew_file() {
+	f, err := os.Open("file.txt")
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer f.Close()
+
+	h := sha1.New()
+	if _, err := io.Copy(h, f); err != nil {
+		log.Fatal(err)
+	}
+
+	fmt.Printf("% x", h.Sum(nil))
+}