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Moved NewV7FromReader to uuid_test since it shouldn't be used outside of testing #158

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Moved NewV7FromReader to uuid_test since it shouldn't be used outside of testing #158

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b6d3a8e
Moved NewV7FromReader to uuid_test since it shouldn't be used outside…
timmattison Mar 6, 2024
36e3bce
Additional comment for clarity on the behavior
timmattison Mar 6, 2024
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15 changes: 15 additions & 0 deletions uuid_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,7 @@ import (
"bytes"
"errors"
"fmt"
"io"
"os"
"runtime"
"strings"
Expand Down Expand Up @@ -884,6 +885,20 @@ func TestVersion7FromReader(t *testing.T) {
}
}

// NewV7FromReader returns a Version 7 UUID based on the current time and uses
// NewRandomFromReader to get bytes 8-15 of the UUID. Bytes 0-7 from the reader
// are read but are overwritten by the makeV7 function.
// On error, NewV7FromReader returns Nil and an error.
func NewV7FromReader(r io.Reader) (UUID, error) {
uuid, err := NewRandomFromReader(r)
if err != nil {
return uuid, err
}

makeV7(uuid[:])
return uuid, nil
}

func TestVersion7Monotonicity(t *testing.T) {
length := 10000
u1 := Must(NewV7()).String()
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17 changes: 0 additions & 17 deletions version7.go
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Original file line number Diff line number Diff line change
Expand Up @@ -4,10 +4,6 @@

package uuid

import (
"io"
)

// UUID version 7 features a time-ordered value field derived from the widely
// implemented and well known Unix Epoch timestamp source,
// the number of milliseconds seconds since midnight 1 Jan 1970 UTC, leap seconds excluded.
Expand All @@ -29,19 +25,6 @@ func NewV7() (UUID, error) {
return uuid, nil
}

// NewV7FromReader returns a Version 7 UUID based on the current time(Unix Epoch).
// it use NewRandomFromReader fill random bits.
// On error, NewV7FromReader returns Nil and an error.
func NewV7FromReader(r io.Reader) (UUID, error) {
uuid, err := NewRandomFromReader(r)
if err != nil {
return uuid, err
}

makeV7(uuid[:])
return uuid, nil
}

// makeV7 fill 48 bits time (uuid[0] - uuid[5]), set version b0111 (uuid[6])
// uuid[8] already has the right version number (Variant is 10)
// see function NewV7 and NewV7FromReader
Expand Down