HumanReadable: respect zero value input

convert/bytes_common.go

@@ -68,13 +68,20 @@ func ParseBytes(value string) (ByteAny, error) {
 // Meant as a universal function to be used by the implementations, with base and a list of unit names.
 //
 // A special behavior is that resulting values smaller than 2 are displayed with the lower exponent.
+// If the input value is 0, humanReadable will always return "0B"
 //
 // Examples:
 //  1073741824B -> 1000KB
 //  2147483648B -> 2MB
+//  0 -> 0MB
 //
 func humanReadable(b uint64, units []string, base float64) (float64, string) {
+	if b == 0 {
+		return 0, "B"
+	}
+
 	exponent := math.Log(float64(b)) / math.Log(base)
+
 	// Round to the unit scaled exponent
 	unitExponent := math.Floor(exponent)
 

convert/bytes_iec_test.go

@@ -6,6 +6,7 @@ import (
 )
 
 func TestBytesIEC_HumanReadable(t *testing.T) {
+	assert.Equal(t, "0B", BytesIEC(0).HumanReadable())
 	assert.Equal(t, "999B", BytesIEC(999).HumanReadable())
 	assert.Equal(t, "999KiB", BytesIEC(999*1024).HumanReadable())
 	assert.Equal(t, "999MiB", BytesIEC(999*1024*1024).HumanReadable())

convert/bytes_si_test.go

@@ -6,6 +6,7 @@ import (
 )
 
 func TestBytesSI_HumanReadable(t *testing.T) {
+	assert.Equal(t, "0B", BytesSI(0).HumanReadable())
 	assert.Equal(t, "999B", BytesSI(999).HumanReadable())
 	assert.Equal(t, "999KB", BytesSI(999*1000).HumanReadable())
 	assert.Equal(t, "999MB", BytesSI(999*1000*1000).HumanReadable())