[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/coreos/go-semver/semver/semver.go b/vendor/github.com/coreos/go-semver/semver/semver.go
new file mode 100644
index 0000000..110fc23
--- /dev/null
+++ b/vendor/github.com/coreos/go-semver/semver/semver.go
@@ -0,0 +1,268 @@
+// Copyright 2013-2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Semantic Versions http://semver.org
+package semver
+
+import (
+ "bytes"
+ "errors"
+ "fmt"
+ "strconv"
+ "strings"
+)
+
+type Version struct {
+ Major int64
+ Minor int64
+ Patch int64
+ PreRelease PreRelease
+ Metadata string
+}
+
+type PreRelease string
+
+func splitOff(input *string, delim string) (val string) {
+ parts := strings.SplitN(*input, delim, 2)
+
+ if len(parts) == 2 {
+ *input = parts[0]
+ val = parts[1]
+ }
+
+ return val
+}
+
+func New(version string) *Version {
+ return Must(NewVersion(version))
+}
+
+func NewVersion(version string) (*Version, error) {
+ v := Version{}
+
+ if err := v.Set(version); err != nil {
+ return nil, err
+ }
+
+ return &v, nil
+}
+
+// Must is a helper for wrapping NewVersion and will panic if err is not nil.
+func Must(v *Version, err error) *Version {
+ if err != nil {
+ panic(err)
+ }
+ return v
+}
+
+// Set parses and updates v from the given version string. Implements flag.Value
+func (v *Version) Set(version string) error {
+ metadata := splitOff(&version, "+")
+ preRelease := PreRelease(splitOff(&version, "-"))
+ dotParts := strings.SplitN(version, ".", 3)
+
+ if len(dotParts) != 3 {
+ return fmt.Errorf("%s is not in dotted-tri format", version)
+ }
+
+ parsed := make([]int64, 3, 3)
+
+ for i, v := range dotParts[:3] {
+ val, err := strconv.ParseInt(v, 10, 64)
+ parsed[i] = val
+ if err != nil {
+ return err
+ }
+ }
+
+ v.Metadata = metadata
+ v.PreRelease = preRelease
+ v.Major = parsed[0]
+ v.Minor = parsed[1]
+ v.Patch = parsed[2]
+ return nil
+}
+
+func (v Version) String() string {
+ var buffer bytes.Buffer
+
+ fmt.Fprintf(&buffer, "%d.%d.%d", v.Major, v.Minor, v.Patch)
+
+ if v.PreRelease != "" {
+ fmt.Fprintf(&buffer, "-%s", v.PreRelease)
+ }
+
+ if v.Metadata != "" {
+ fmt.Fprintf(&buffer, "+%s", v.Metadata)
+ }
+
+ return buffer.String()
+}
+
+func (v *Version) UnmarshalYAML(unmarshal func(interface{}) error) error {
+ var data string
+ if err := unmarshal(&data); err != nil {
+ return err
+ }
+ return v.Set(data)
+}
+
+func (v Version) MarshalJSON() ([]byte, error) {
+ return []byte(`"` + v.String() + `"`), nil
+}
+
+func (v *Version) UnmarshalJSON(data []byte) error {
+ l := len(data)
+ if l == 0 || string(data) == `""` {
+ return nil
+ }
+ if l < 2 || data[0] != '"' || data[l-1] != '"' {
+ return errors.New("invalid semver string")
+ }
+ return v.Set(string(data[1 : l-1]))
+}
+
+// Compare tests if v is less than, equal to, or greater than versionB,
+// returning -1, 0, or +1 respectively.
+func (v Version) Compare(versionB Version) int {
+ if cmp := recursiveCompare(v.Slice(), versionB.Slice()); cmp != 0 {
+ return cmp
+ }
+ return preReleaseCompare(v, versionB)
+}
+
+// Equal tests if v is equal to versionB.
+func (v Version) Equal(versionB Version) bool {
+ return v.Compare(versionB) == 0
+}
+
+// LessThan tests if v is less than versionB.
+func (v Version) LessThan(versionB Version) bool {
+ return v.Compare(versionB) < 0
+}
+
+// Slice converts the comparable parts of the semver into a slice of integers.
+func (v Version) Slice() []int64 {
+ return []int64{v.Major, v.Minor, v.Patch}
+}
+
+func (p PreRelease) Slice() []string {
+ preRelease := string(p)
+ return strings.Split(preRelease, ".")
+}
+
+func preReleaseCompare(versionA Version, versionB Version) int {
+ a := versionA.PreRelease
+ b := versionB.PreRelease
+
+ /* Handle the case where if two versions are otherwise equal it is the
+ * one without a PreRelease that is greater */
+ if len(a) == 0 && (len(b) > 0) {
+ return 1
+ } else if len(b) == 0 && (len(a) > 0) {
+ return -1
+ }
+
+ // If there is a prerelease, check and compare each part.
+ return recursivePreReleaseCompare(a.Slice(), b.Slice())
+}
+
+func recursiveCompare(versionA []int64, versionB []int64) int {
+ if len(versionA) == 0 {
+ return 0
+ }
+
+ a := versionA[0]
+ b := versionB[0]
+
+ if a > b {
+ return 1
+ } else if a < b {
+ return -1
+ }
+
+ return recursiveCompare(versionA[1:], versionB[1:])
+}
+
+func recursivePreReleaseCompare(versionA []string, versionB []string) int {
+ // A larger set of pre-release fields has a higher precedence than a smaller set,
+ // if all of the preceding identifiers are equal.
+ if len(versionA) == 0 {
+ if len(versionB) > 0 {
+ return -1
+ }
+ return 0
+ } else if len(versionB) == 0 {
+ // We're longer than versionB so return 1.
+ return 1
+ }
+
+ a := versionA[0]
+ b := versionB[0]
+
+ aInt := false
+ bInt := false
+
+ aI, err := strconv.Atoi(versionA[0])
+ if err == nil {
+ aInt = true
+ }
+
+ bI, err := strconv.Atoi(versionB[0])
+ if err == nil {
+ bInt = true
+ }
+
+ // Handle Integer Comparison
+ if aInt && bInt {
+ if aI > bI {
+ return 1
+ } else if aI < bI {
+ return -1
+ }
+ }
+
+ // Handle String Comparison
+ if a > b {
+ return 1
+ } else if a < b {
+ return -1
+ }
+
+ return recursivePreReleaseCompare(versionA[1:], versionB[1:])
+}
+
+// BumpMajor increments the Major field by 1 and resets all other fields to their default values
+func (v *Version) BumpMajor() {
+ v.Major += 1
+ v.Minor = 0
+ v.Patch = 0
+ v.PreRelease = PreRelease("")
+ v.Metadata = ""
+}
+
+// BumpMinor increments the Minor field by 1 and resets all other fields to their default values
+func (v *Version) BumpMinor() {
+ v.Minor += 1
+ v.Patch = 0
+ v.PreRelease = PreRelease("")
+ v.Metadata = ""
+}
+
+// BumpPatch increments the Patch field by 1 and resets all other fields to their default values
+func (v *Version) BumpPatch() {
+ v.Patch += 1
+ v.PreRelease = PreRelease("")
+ v.Metadata = ""
+}