[VOL-2235] Mocks and interfaces for rw-core
This update consists of mocks that are used by the rw-core
during unit testing. It also includes interfaces used for unit
tests.
Change-Id: I20ca1455c358113c3aa897acc6355e0ddbc614b7
diff --git a/vendor/github.com/dustin/go-humanize/bytes.go b/vendor/github.com/dustin/go-humanize/bytes.go
new file mode 100644
index 0000000..0b498f4
--- /dev/null
+++ b/vendor/github.com/dustin/go-humanize/bytes.go
@@ -0,0 +1,143 @@
+package humanize
+
+import (
+ "fmt"
+ "math"
+ "strconv"
+ "strings"
+ "unicode"
+)
+
+// IEC Sizes.
+// kibis of bits
+const (
+ Byte = 1 << (iota * 10)
+ KiByte
+ MiByte
+ GiByte
+ TiByte
+ PiByte
+ EiByte
+)
+
+// SI Sizes.
+const (
+ IByte = 1
+ KByte = IByte * 1000
+ MByte = KByte * 1000
+ GByte = MByte * 1000
+ TByte = GByte * 1000
+ PByte = TByte * 1000
+ EByte = PByte * 1000
+)
+
+var bytesSizeTable = map[string]uint64{
+ "b": Byte,
+ "kib": KiByte,
+ "kb": KByte,
+ "mib": MiByte,
+ "mb": MByte,
+ "gib": GiByte,
+ "gb": GByte,
+ "tib": TiByte,
+ "tb": TByte,
+ "pib": PiByte,
+ "pb": PByte,
+ "eib": EiByte,
+ "eb": EByte,
+ // Without suffix
+ "": Byte,
+ "ki": KiByte,
+ "k": KByte,
+ "mi": MiByte,
+ "m": MByte,
+ "gi": GiByte,
+ "g": GByte,
+ "ti": TiByte,
+ "t": TByte,
+ "pi": PiByte,
+ "p": PByte,
+ "ei": EiByte,
+ "e": EByte,
+}
+
+func logn(n, b float64) float64 {
+ return math.Log(n) / math.Log(b)
+}
+
+func humanateBytes(s uint64, base float64, sizes []string) string {
+ if s < 10 {
+ return fmt.Sprintf("%d B", s)
+ }
+ e := math.Floor(logn(float64(s), base))
+ suffix := sizes[int(e)]
+ val := math.Floor(float64(s)/math.Pow(base, e)*10+0.5) / 10
+ f := "%.0f %s"
+ if val < 10 {
+ f = "%.1f %s"
+ }
+
+ return fmt.Sprintf(f, val, suffix)
+}
+
+// Bytes produces a human readable representation of an SI size.
+//
+// See also: ParseBytes.
+//
+// Bytes(82854982) -> 83 MB
+func Bytes(s uint64) string {
+ sizes := []string{"B", "kB", "MB", "GB", "TB", "PB", "EB"}
+ return humanateBytes(s, 1000, sizes)
+}
+
+// IBytes produces a human readable representation of an IEC size.
+//
+// See also: ParseBytes.
+//
+// IBytes(82854982) -> 79 MiB
+func IBytes(s uint64) string {
+ sizes := []string{"B", "KiB", "MiB", "GiB", "TiB", "PiB", "EiB"}
+ return humanateBytes(s, 1024, sizes)
+}
+
+// ParseBytes parses a string representation of bytes into the number
+// of bytes it represents.
+//
+// See Also: Bytes, IBytes.
+//
+// ParseBytes("42 MB") -> 42000000, nil
+// ParseBytes("42 mib") -> 44040192, nil
+func ParseBytes(s string) (uint64, error) {
+ lastDigit := 0
+ hasComma := false
+ for _, r := range s {
+ if !(unicode.IsDigit(r) || r == '.' || r == ',') {
+ break
+ }
+ if r == ',' {
+ hasComma = true
+ }
+ lastDigit++
+ }
+
+ num := s[:lastDigit]
+ if hasComma {
+ num = strings.Replace(num, ",", "", -1)
+ }
+
+ f, err := strconv.ParseFloat(num, 64)
+ if err != nil {
+ return 0, err
+ }
+
+ extra := strings.ToLower(strings.TrimSpace(s[lastDigit:]))
+ if m, ok := bytesSizeTable[extra]; ok {
+ f *= float64(m)
+ if f >= math.MaxUint64 {
+ return 0, fmt.Errorf("too large: %v", s)
+ }
+ return uint64(f), nil
+ }
+
+ return 0, fmt.Errorf("unhandled size name: %v", extra)
+}