example_test.go

     1  // Copyright 2013 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 md5_test
     6  
     7  import (
     8  	"crypto/md5"
     9  	"fmt"
    10  	"io"
    11  	"log"
    12  	"os"
    13  )
    14  
    15  func ExampleNew() {
    16  	h := md5.New()
    17  	io.WriteString(h, "The fog is getting thicker!")
    18  	io.WriteString(h, "And Leon's getting laaarger!")
    19  	fmt.Printf("%x", h.Sum(nil))
    20  	// Output: e2c569be17396eca2a2e3c11578123ed
    21  }
    22  
    23  func ExampleSum() {
    24  	data := []byte("These pretzels are making me thirsty.")
    25  	fmt.Printf("%x", md5.Sum(data))
    26  	// Output: b0804ec967f48520697662a204f5fe72
    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 := md5.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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