byteio - littleendianwriter_test.go

     1  package byteio
     2  
     3  import (
     4  	"bytes"
     5  	"io"
     6  	"testing"
     7  )
     8  
     9  func TestWriteLittleEndian(t *testing.T) {
    10  	const testData = "\x0d\x0c\x0b\x0a\x0d\x0c\x08\x07\x06\x05\x04\x03\x02\x01A"
    11  	var b bytes.Buffer
    12  	w := LittleEndianWriter{Writer: &b}
    13  
    14  	if n, err := w.WriteUint32(168496141); err != nil {
    15  		t.Errorf("test 1: unexpected error: %s", err)
    16  	} else if n != 4 {
    17  		t.Errorf("test 1: expecting to write 4 bytes, read %d", n)
    18  	}
    19  	if n, err := w.WriteUint16(3085); err != nil {
    20  		t.Errorf("test 2: unexpected error: %s", err)
    21  	} else if n != 2 {
    22  		t.Errorf("test 2: expecting to write 2 bytes, read %d", n)
    23  	}
    24  	if n, err := w.WriteUint64(72623859790382856); err != nil {
    25  		t.Errorf("test 3: unexpected error: %s", err)
    26  	} else if n != 8 {
    27  		t.Errorf("test 3: expecting to write 8 bytes, read %d", n)
    28  	}
    29  	if n, err := w.WriteUint8(65); err != nil {
    30  		t.Errorf("test 4: unexpected error: %s", err)
    31  	} else if n != 1 {
    32  		t.Errorf("test 4: expecting to write 1 byte, read %d", n)
    33  	}
    34  	if str := b.String(); str != testData {
    35  		t.Errorf("expecting %q, got %q", testData, str)
    36  	}
    37  }
    38  
    39  func BenchmarkWriteLittleUint8(b *testing.B) {
    40  	w := LittleEndianWriter{Writer: io.Discard}
    41  	b.ResetTimer()
    42  	for i := 0; i < b.N; i++ {
    43  		w.WriteUint8(1)
    44  	}
    45  }
    46  
    47  func BenchmarkWriteLittleInt8(b *testing.B) {
    48  	w := LittleEndianWriter{Writer: io.Discard}
    49  	b.ResetTimer()
    50  	for i := 0; i < b.N; i++ {
    51  		w.WriteInt8(1)
    52  	}
    53  }
    54  
    55  func BenchmarkWriteLittleUint16(b *testing.B) {
    56  	w := LittleEndianWriter{Writer: io.Discard}
    57  	b.ResetTimer()
    58  	for i := 0; i < b.N; i++ {
    59  		w.WriteUint16(1)
    60  	}
    61  }
    62  
    63  func BenchmarkWriteLittleInt16(b *testing.B) {
    64  	w := LittleEndianWriter{Writer: io.Discard}
    65  	b.ResetTimer()
    66  	for i := 0; i < b.N; i++ {
    67  		w.WriteInt16(1)
    68  	}
    69  }
    70  
    71  func BenchmarkWriteLittleUint32(b *testing.B) {
    72  	w := LittleEndianWriter{Writer: io.Discard}
    73  	b.ResetTimer()
    74  	for i := 0; i < b.N; i++ {
    75  		w.WriteUint32(1)
    76  	}
    77  }
    78  
    79  func BenchmarkWriteLittleInt32(b *testing.B) {
    80  	w := LittleEndianWriter{Writer: io.Discard}
    81  	b.ResetTimer()
    82  	for i := 0; i < b.N; i++ {
    83  		w.WriteInt32(1)
    84  	}
    85  }
    86  
    87  func BenchmarkWriteLittleUint64(b *testing.B) {
    88  	w := LittleEndianWriter{Writer: io.Discard}
    89  	b.ResetTimer()
    90  	for i := 0; i < b.N; i++ {
    91  		w.WriteUint64(1)
    92  	}
    93  }
    94  
    95  func BenchmarkWriteLittleInt64(b *testing.B) {
    96  	w := LittleEndianWriter{Writer: io.Discard}
    97  	b.ResetTimer()
    98  	for i := 0; i < b.N; i++ {
    99  		w.WriteInt64(1)
   100  	}
   101  }
   102