github.com/v2fly/v2ray-core/v5@v5.16.2-0.20240507031116-8191faa6e095/common/units/bytesize_test.go (about)

     1  package units_test
     2  
     3  import (
     4  	"testing"
     5  
     6  	"github.com/v2fly/v2ray-core/v5/common/units"
     7  )
     8  
     9  func TestByteSizes(t *testing.T) {
    10  	size := units.ByteSize(0)
    11  	assertSizeString(t, size, "0")
    12  	size++
    13  	assertSizeValue(t,
    14  		assertSizeString(t, size, "1.00B"),
    15  		size,
    16  	)
    17  	size <<= 10
    18  	assertSizeValue(t,
    19  		assertSizeString(t, size, "1.00KB"),
    20  		size,
    21  	)
    22  	size <<= 10
    23  	assertSizeValue(t,
    24  		assertSizeString(t, size, "1.00MB"),
    25  		size,
    26  	)
    27  	size <<= 10
    28  	assertSizeValue(t,
    29  		assertSizeString(t, size, "1.00GB"),
    30  		size,
    31  	)
    32  	size <<= 10
    33  	assertSizeValue(t,
    34  		assertSizeString(t, size, "1.00TB"),
    35  		size,
    36  	)
    37  	size <<= 10
    38  	assertSizeValue(t,
    39  		assertSizeString(t, size, "1.00PB"),
    40  		size,
    41  	)
    42  	size <<= 10
    43  	assertSizeValue(t,
    44  		assertSizeString(t, size, "1.00EB"),
    45  		size,
    46  	)
    47  }
    48  
    49  func assertSizeValue(t *testing.T, size string, expected units.ByteSize) {
    50  	actual := units.ByteSize(0)
    51  	err := actual.Parse(size)
    52  	if err != nil {
    53  		t.Error(err)
    54  	}
    55  	if actual != expected {
    56  		t.Errorf("expect %s, but got %s", expected, actual)
    57  	}
    58  }
    59  
    60  func assertSizeString(t *testing.T, size units.ByteSize, expected string) string {
    61  	actual := size.String()
    62  	if actual != expected {
    63  		t.Errorf("expect %s, but got %s", expected, actual)
    64  	}
    65  	return expected
    66  }