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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), "0 B"},
{"bytes(1)", Bytes(1), "1 B"},
{"bytes(803)", Bytes(803), "803 B"},
{"bytes(999)", Bytes(999), "999 B"},
{"bytes(1024)", Bytes(1024), "1.0 kB"},
{"bytes(9999)", Bytes(9999), "10 kB"},
{"bytes(1MB - 1)", Bytes(MByte - Byte), "1000 kB"},
{"bytes(1MB)", Bytes(1024 * 1024), "1.0 MB"},
{"bytes(1GB - 1K)", Bytes(GByte - KByte), "1000 MB"},
{"bytes(1GB)", Bytes(GByte), "1.0 GB"},
{"bytes(1TB - 1M)", Bytes(TByte - MByte), "1000 GB"},
{"bytes(10MB)", Bytes(9999 * 1000), "10 MB"},
{"bytes(1TB)", Bytes(TByte), "1.0 TB"},
{"bytes(1PB - 1T)", Bytes(PByte - TByte), "999 TB"},
{"bytes(1PB)", Bytes(PByte), "1.0 PB"},
{"bytes(1PB - 1T)", Bytes(EByte - PByte), "999 PB"},
{"bytes(1EB)", Bytes(EByte), "1.0 EB"},
// Overflows.
// {"bytes(1EB - 1P)", Bytes((KByte*EByte)-PByte), "1023EB"},
{"bytes(0)", IBytes(0), "0 B"},
{"bytes(1)", IBytes(1), "1 B"},
{"bytes(803)", IBytes(803), "803 B"},
{"bytes(1023)", IBytes(1023), "1023 B"},
{"bytes(1024)", IBytes(1024), "1.0 KiB"},
{"bytes(1MB - 1)", IBytes(MiByte - IByte), "1024 KiB"},
{"bytes(1MB)", IBytes(1024 * 1024), "1.0 MiB"},
{"bytes(1GB - 1K)", IBytes(GiByte - KiByte), "1024 MiB"},
{"bytes(1GB)", IBytes(GiByte), "1.0 GiB"},
{"bytes(1TB - 1M)", IBytes(TiByte - MiByte), "1024 GiB"},
{"bytes(1TB)", IBytes(TiByte), "1.0 TiB"},
{"bytes(1PB - 1T)", IBytes(PiByte - TiByte), "1023 TiB"},
{"bytes(1PB)", IBytes(PiByte), "1.0 PiB"},
{"bytes(1PB - 1T)", IBytes(EiByte - PiByte), "1023 PiB"},
{"bytes(1EiB)", IBytes(EiByte), "1.0 EiB"},
// Overflows.
// {"bytes(1EB - 1P)", IBytes((KIByte*EIByte)-PiByte), "1023EB"},
{"bytes(5.5GiB)", IBytes(5.5 * GiByte), "5.5 GiB"},
{"bytes(5.5GB)", Bytes(5.5 * GByte), "5.5 GB"},
}.validate(t)
}
func BenchmarkParseBytes(b *testing.B) {
for i := 0; i < b.N; i++ {
ParseBytes("16.5 GB")
}
}
func BenchmarkBytes(b *testing.B) {
for i := 0; i < b.N; i++ {
Bytes(16.5 * GByte)
}
}
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