package humanize import ( "testing" ) func TestByteParsing(t *testing.T) { tests := []struct { in string exp uint64 }{ {"42", 42}, {"42MB", 42000000}, {"42MiB", 44040192}, {"42mb", 42000000}, {"42mib", 44040192}, {"42MIB", 44040192}, {"42 MB", 42000000}, {"42 MiB", 44040192}, {"42 mb", 42000000}, {"42 mib", 44040192}, {"42 MIB", 44040192}, {"42.5MB", 42500000}, {"42.5MiB", 44564480}, {"42.5 MB", 42500000}, {"42.5 MiB", 44564480}, // No need to say B {"42M", 42000000}, {"42Mi", 44040192}, {"42m", 42000000}, {"42mi", 44040192}, {"42MI", 44040192}, {"42 M", 42000000}, {"42 Mi", 44040192}, {"42 m", 42000000}, {"42 mi", 44040192}, {"42 MI", 44040192}, {"42.5M", 42500000}, {"42.5Mi", 44564480}, {"42.5 M", 42500000}, {"42.5 Mi", 44564480}, // Large testing, breaks when too much larger than // this. {"12.5 EB", uint64(12.5 * float64(EByte))}, {"12.5 E", uint64(12.5 * float64(EByte))}, {"12.5 EiB", uint64(12.5 * float64(EiByte))}, } for _, p := range tests { got, err := ParseBytes(p.in) if err != nil { t.Errorf("Couldn't parse %v: %v", p.in, err) } if got != p.exp { t.Errorf("Expected %v for %v, got %v", p.exp, p.in, got) } } } func TestByteErrors(t *testing.T) { got, err := ParseBytes("84 JB") if err == nil { t.Errorf("Expected error, got %v", got) } got, err = ParseBytes("") if err == nil { t.Errorf("Expected error parsing nothing") } got, err = ParseBytes("16 EiB") if err == nil { t.Errorf("Expected error, got %v", got) } } func TestBytes(t *testing.T) { testList{ {"bytes(0)", Bytes(0), "0B"}, {"bytes(1)", Bytes(1), "1B"}, {"bytes(803)", Bytes(803), "803B"}, {"bytes(999)", Bytes(999), "999B"}, {"bytes(1024)", Bytes(1024), "1.0KB"}, {"bytes(1MB - 1)", Bytes(MByte - Byte), "1000KB"}, {"bytes(1MB)", Bytes(1024 * 1024), "1.0MB"}, {"bytes(1GB - 1K)", Bytes(GByte - KByte), "1000MB"}, {"bytes(1GB)", Bytes(GByte), "1.0GB"}, {"bytes(1TB - 1M)", Bytes(TByte - MByte), "1000GB"}, {"bytes(1TB)", Bytes(TByte), "1.0TB"}, {"bytes(1PB - 1T)", Bytes(PByte - TByte), "999TB"}, {"bytes(1PB)", Bytes(PByte), "1.0PB"}, {"bytes(1PB - 1T)", Bytes(EByte - PByte), "999PB"}, {"bytes(1EB)", Bytes(EByte), "1.0EB"}, // Overflows. // {"bytes(1EB - 1P)", Bytes((KByte*EByte)-PByte), "1023EB"}, {"bytes(0)", IBytes(0), "0B"}, {"bytes(1)", IBytes(1), "1B"}, {"bytes(803)", IBytes(803), "803B"}, {"bytes(1023)", IBytes(1023), "1023B"}, {"bytes(1024)", IBytes(1024), "1.0KiB"}, {"bytes(1MB - 1)", IBytes(MiByte - IByte), "1024KiB"}, {"bytes(1MB)", IBytes(1024 * 1024), "1.0MiB"}, {"bytes(1GB - 1K)", IBytes(GiByte - KiByte), "1024MiB"}, {"bytes(1GB)", IBytes(GiByte), "1.0GiB"}, {"bytes(1TB - 1M)", IBytes(TiByte - MiByte), "1024GiB"}, {"bytes(1TB)", IBytes(TiByte), "1.0TiB"}, {"bytes(1PB - 1T)", IBytes(PiByte - TiByte), "1023TiB"}, {"bytes(1PB)", IBytes(PiByte), "1.0PiB"}, {"bytes(1PB - 1T)", IBytes(EiByte - PiByte), "1023PiB"}, {"bytes(1EiB)", IBytes(EiByte), "1.0EiB"}, // Overflows. // {"bytes(1EB - 1P)", IBytes((KIByte*EIByte)-PiByte), "1023EB"}, {"bytes(5.5GiB)", IBytes(5.5 * GiByte), "5.5GiB"}, {"bytes(5.5GB)", Bytes(5.5 * GByte), "5.5GB"}, }.validate(t) } func BenchmarkParseBytes(b *testing.B) { for i := 0; i < b.N; i++ { ParseBytes("16.5GB") } } func BenchmarkBytes(b *testing.B) { for i := 0; i < b.N; i++ { Bytes(16.5 * GByte) } }