example_test.go

     1  // Copyright 2009 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package sha1_test
     6  
     7  import (
     8  	"crypto/sha1"
     9  	"fmt"
    10  	"io"
    11  	"log"
    12  	"os"
    13  )
    14  
    15  func ExampleNew() {
    16  	h := sha1.New()
    17  	io.WriteString(h, "His money is twice tainted:")
    18  	io.WriteString(h, " 'taint yours and 'taint mine.")
    19  	fmt.Printf("% x", h.Sum(nil))
    20  	// Output: 59 7f 6a 54 00 10 f9 4c 15 d7 18 06 a9 9a 2c 87 10 e7 47 bd
    21  }
    22  
    23  func ExampleSum() {
    24  	data := []byte("This page intentionally left blank.")
    25  	fmt.Printf("% x", sha1.Sum(data))
    26  	// Output: af 06 49 23 bb f2 30 15 96 aa c4 c2 73 ba 32 17 8e bc 4a 96
    27  }
    28  
    29  func ExampleNew_file() {
    30  	f, err := os.Open("file.txt")
    31  	if err != nil {
    32  		log.Fatal(err)
    33  	}
    34  	defer f.Close()
    35  
    36  	h := sha1.New()
    37  	if _, err := io.Copy(h, f); err != nil {
    38  		log.Fatal(err)
    39  	}
    40  
    41  	fmt.Printf("% x", h.Sum(nil))
    42  }
    43
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