From 54518abe7697ec2b2a70c32061a9d6f3996aaa40 Mon Sep 17 00:00:00 2001
From: johnmanjiro13 <28798279+johnmanjiro13@users.noreply.github.com>
Date: Sat, 4 Jun 2022 18:44:11 +0900
Subject: [PATCH 01/10] test: rename package to bump_test and exrpot stuffs for
 test

---
 bump/bumper.go      | 12 +++++-------
 bump/bumper_test.go | 23 ++++++++++++-----------
 bump/export_test.go | 15 +++++++++++++++
 3 files changed, 32 insertions(+), 18 deletions(-)
 create mode 100644 bump/export_test.go

diff --git a/bump/bumper.go b/bump/bumper.go
index d0712f6..b73c81a 100644
--- a/bump/bumper.go
+++ b/bump/bumper.go
@@ -7,8 +7,6 @@ import (
 
 	"github.com/Masterminds/semver/v3"
 	"github.com/manifoldco/promptui"
-
-	"github.com/johnmanjiro13/gh-bump/cmd"
 )
 
 type Gh interface {
@@ -43,7 +41,7 @@ type bumper struct {
 	title              string
 }
 
-func New(gh Gh) cmd.Bumper {
+func New(gh Gh) *bumper {
 	return &bumper{gh: gh}
 }
 
@@ -109,13 +107,13 @@ func (b *bumper) Bump() error {
 	if isInitial {
 		nextVer = current
 	} else {
-		nextVer, err = b.nextVersion(current)
+		nextVer, err = nextVersion(current)
 		if err != nil {
 			return err
 		}
 	}
 
-	ok, err := b.approve(nextVer)
+	ok, err := approve(nextVer)
 	if err != nil {
 		return err
 	}
@@ -194,7 +192,7 @@ func newVersion() (*semver.Version, error) {
 	return semver.NewVersion(result)
 }
 
-func (b *bumper) nextVersion(current *semver.Version) (*semver.Version, error) {
+func nextVersion(current *semver.Version) (*semver.Version, error) {
 	prompt := promptui.Select{
 		Label: fmt.Sprintf("Select next version. current: %s", current.Original()),
 		Items: []string{"patch", "minor", "major"},
@@ -218,7 +216,7 @@ func (b *bumper) nextVersion(current *semver.Version) (*semver.Version, error) {
 	return &next, nil
 }
 
-func (b *bumper) approve(next *semver.Version) (bool, error) {
+func approve(next *semver.Version) (bool, error) {
 	validate := func(input string) error {
 		if input != "y" && input != "yes" && input != "n" && input != "no" {
 			return fmt.Errorf("invalid character. press y/n")
diff --git a/bump/bumper_test.go b/bump/bumper_test.go
index 568240f..deef777 100644
--- a/bump/bumper_test.go
+++ b/bump/bumper_test.go
@@ -1,10 +1,11 @@
-package bump
+package bump_test
 
 import (
 	"bytes"
 	"fmt"
 	"testing"
 
+	"github.com/johnmanjiro13/gh-bump/bump"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -30,7 +31,7 @@ func (g *mockGh) ViewRelease(repo string, isCurrent bool) (sout, eout bytes.Buff
 	return
 }
 
-func (g *mockGh) CreateRelease(version string, repo string, isCurrent bool, option *ReleaseOption) (sout, eout bytes.Buffer, err error) {
+func (g *mockGh) CreateRelease(version string, repo string, isCurrent bool, option *bump.ReleaseOption) (sout, eout bytes.Buffer, err error) {
 	sout.WriteString(version)
 	return
 }
@@ -55,32 +56,32 @@ func TestBumper_WithRepository(t *testing.T) {
 
 	for name, tt := range tests {
 		t.Run(name, func(t *testing.T) {
-			b := &bumper{gh: &mockGh{}}
+			b := bump.New(&mockGh{})
 			assert.NoError(t, b.WithRepository(tt.repository))
 
-			assert.Equal(t, tt.wantRepository, b.repository)
-			assert.Equal(t, tt.wantIsCurrent, b.isCurrent)
+			assert.Equal(t, tt.wantRepository, b.Repository())
+			assert.Equal(t, tt.wantIsCurrent, b.IsCurrent())
 		})
 	}
 }
 
 func TestBumper_ResolveRepository(t *testing.T) {
-	b := &bumper{gh: &mockGh{}}
-	got, err := b.resolveRepository()
+	b := bump.New(&mockGh{})
+	got, err := bump.ResolveRepository(b)
 	assert.NoError(t, err)
 	assert.Equal(t, "johnmanjiro13/gh-bump", got)
 }
 
 func TestBumper_listReleases(t *testing.T) {
-	b := &bumper{gh: &mockGh{}}
-	got, err := b.listReleases()
+	b := bump.New(&mockGh{})
+	got, err := bump.ListReleases(b)
 	assert.NoError(t, err)
 	assert.Equal(t, fmt.Sprintf("Tags:\n%s", tagList), got)
 }
 
 func TestBumper_createRelease(t *testing.T) {
-	b := &bumper{gh: &mockGh{}}
-	got, err := b.createRelease("v1.0.0")
+	b := bump.New(&mockGh{})
+	got, err := bump.CreateRelease(b, "v1.0.0")
 	assert.NoError(t, err)
 	assert.Equal(t, "v1.0.0", got)
 }
diff --git a/bump/export_test.go b/bump/export_test.go
new file mode 100644
index 0000000..b620136
--- /dev/null
+++ b/bump/export_test.go
@@ -0,0 +1,15 @@
+package bump
+
+var (
+	ResolveRepository = (*bumper).resolveRepository
+	ListReleases      = (*bumper).listReleases
+	CreateRelease     = (*bumper).createRelease
+)
+
+func (b *bumper) Repository() string {
+	return b.repository
+}
+
+func (b *bumper) IsCurrent() bool {
+	return b.isCurrent
+}

From a371578e817c4e223af1feb1a69b73ac2b458ebb Mon Sep 17 00:00:00 2001
From: johnmanjiro13 <28798279+johnmanjiro13@users.noreply.github.com>
Date: Sat, 4 Jun 2022 19:07:43 +0900
Subject: [PATCH 02/10] fix: return pointer type

---
 bump/bumper.go |  8 ++++----
 gh/gh.go       | 16 ++++++++--------
 2 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/bump/bumper.go b/bump/bumper.go
index b73c81a..6a34cf5 100644
--- a/bump/bumper.go
+++ b/bump/bumper.go
@@ -10,10 +10,10 @@ import (
 )
 
 type Gh interface {
-	ViewRepository() (sout, eout bytes.Buffer, err error)
-	ListRelease(repo string, isCurrent bool) (sout, eout bytes.Buffer, err error)
-	ViewRelease(repo string, isCurrent bool) (sout, eout bytes.Buffer, err error)
-	CreateRelease(version string, repo string, isCurrent bool, option *ReleaseOption) (sout, eout bytes.Buffer, err error)
+	ViewRepository() (sout, eout *bytes.Buffer, err error)
+	ListRelease(repo string, isCurrent bool) (sout, eout *bytes.Buffer, err error)
+	ViewRelease(repo string, isCurrent bool) (sout, eout *bytes.Buffer, err error)
+	CreateRelease(version string, repo string, isCurrent bool, option *ReleaseOption) (sout, eout *bytes.Buffer, err error)
 }
 
 type ReleaseOption struct {
diff --git a/gh/gh.go b/gh/gh.go
index e518e25..aef9639 100644
--- a/gh/gh.go
+++ b/gh/gh.go
@@ -12,15 +12,15 @@ import (
 
 type gh struct{}
 
-func New() bump.Gh {
+func New() *gh {
 	return &gh{}
 }
 
-func (g *gh) ViewRepository() (sout, eout bytes.Buffer, err error) {
+func (g *gh) ViewRepository() (sout, eout *bytes.Buffer, err error) {
 	return runGh("repo", "view")
 }
 
-func (g *gh) ListRelease(repo string, isCurrent bool) (sout, eout bytes.Buffer, err error) {
+func (g *gh) ListRelease(repo string, isCurrent bool) (sout, eout *bytes.Buffer, err error) {
 	if isCurrent {
 		sout, eout, err = runGh("release", "list")
 	} else {
@@ -29,7 +29,7 @@ func (g *gh) ListRelease(repo string, isCurrent bool) (sout, eout bytes.Buffer,
 	return
 }
 
-func (g *gh) ViewRelease(repo string, isCurrent bool) (sout, eout bytes.Buffer, err error) {
+func (g *gh) ViewRelease(repo string, isCurrent bool) (sout, eout *bytes.Buffer, err error) {
 	if isCurrent {
 		sout, eout, err = runGh("release", "view")
 	} else {
@@ -38,7 +38,7 @@ func (g *gh) ViewRelease(repo string, isCurrent bool) (sout, eout bytes.Buffer,
 	return
 }
 
-func (g *gh) CreateRelease(version string, repo string, isCurrent bool, option *bump.ReleaseOption) (sout, eout bytes.Buffer, err error) {
+func (g *gh) CreateRelease(version string, repo string, isCurrent bool, option *bump.ReleaseOption) (sout, eout *bytes.Buffer, err error) {
 	args := []string{"release", "create", version}
 	if !isCurrent {
 		args = append(args, []string{"-R", repo}...)
@@ -71,7 +71,7 @@ func (g *gh) CreateRelease(version string, repo string, isCurrent bool, option *
 	return
 }
 
-func runGh(args ...string) (sout, eout bytes.Buffer, err error) {
+func runGh(args ...string) (sout, eout *bytes.Buffer, err error) {
 	ghBin, err := safeexec.LookPath("gh")
 	if err != nil {
 		err = fmt.Errorf("could not find gh. err: %w", err)
@@ -79,8 +79,8 @@ func runGh(args ...string) (sout, eout bytes.Buffer, err error) {
 	}
 
 	cmd := exec.Command(ghBin, args...)
-	cmd.Stdout = &sout
-	cmd.Stderr = &eout
+	cmd.Stdout = sout
+	cmd.Stderr = eout
 
 	err = cmd.Run()
 	if err != nil {

From a8c4ef5968d2a87fe7da2107f5f4bdd5df2900bb Mon Sep 17 00:00:00 2001
From: johnmanjiro13 <28798279+johnmanjiro13@users.noreply.github.com>
Date: Sat, 4 Jun 2022 19:07:47 +0900
Subject: [PATCH 03/10] test: test bumper with gomock

---
 Makefile                    |   7 +++
 bump/bumper_test.go         |  64 +++++++++++++----------
 bump/mock_bump/mock_bump.go | 100 ++++++++++++++++++++++++++++++++++++
 go.mod                      |   1 +
 go.sum                      |  24 +++++++++
 5 files changed, 169 insertions(+), 27 deletions(-)
 create mode 100644 Makefile
 create mode 100644 bump/mock_bump/mock_bump.go

diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..081ba32
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,7 @@
+.PHONY: test
+
+test:
+	go test -cover ./...
+
+mockgen:
+	mockgen -destination bump/mock_bump/mock_bump.go github.com/johnmanjiro13/gh-bump/bump Gh
diff --git a/bump/bumper_test.go b/bump/bumper_test.go
index deef777..306c280 100644
--- a/bump/bumper_test.go
+++ b/bump/bumper_test.go
@@ -5,8 +5,11 @@ import (
 	"fmt"
 	"testing"
 
-	"github.com/johnmanjiro13/gh-bump/bump"
+	"github.com/golang/mock/gomock"
 	"github.com/stretchr/testify/assert"
+
+	"github.com/johnmanjiro13/gh-bump/bump"
+	"github.com/johnmanjiro13/gh-bump/bump/mock_bump"
 )
 
 const (
@@ -15,27 +18,6 @@ description:    gh extension for bumping version of a repository`
 	tagList = `v0.2.1  Latest  v0.2.1  2021-12-08T04:19:16Z`
 )
 
-type mockGh struct{}
-
-func (g *mockGh) ViewRepository() (sout, eout bytes.Buffer, err error) {
-	sout.WriteString(repoDocs)
-	return
-}
-
-func (g *mockGh) ListRelease(repo string, isCurrent bool) (sout, eout bytes.Buffer, err error) {
-	sout.WriteString(tagList)
-	return
-}
-
-func (g *mockGh) ViewRelease(repo string, isCurrent bool) (sout, eout bytes.Buffer, err error) {
-	return
-}
-
-func (g *mockGh) CreateRelease(version string, repo string, isCurrent bool, option *bump.ReleaseOption) (sout, eout bytes.Buffer, err error) {
-	sout.WriteString(version)
-	return
-}
-
 func TestBumper_WithRepository(t *testing.T) {
 	tests := map[string]struct {
 		repository     string
@@ -54,9 +36,15 @@ func TestBumper_WithRepository(t *testing.T) {
 		},
 	}
 
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	gh := mock_bump.NewMockGh(ctrl)
+	gh.EXPECT().ViewRepository().Return(bytes.NewBufferString(repoDocs), &bytes.Buffer{}, nil)
+
 	for name, tt := range tests {
 		t.Run(name, func(t *testing.T) {
-			b := bump.New(&mockGh{})
+			b := bump.New(gh)
 			assert.NoError(t, b.WithRepository(tt.repository))
 
 			assert.Equal(t, tt.wantRepository, b.Repository())
@@ -66,22 +54,44 @@ func TestBumper_WithRepository(t *testing.T) {
 }
 
 func TestBumper_ResolveRepository(t *testing.T) {
-	b := bump.New(&mockGh{})
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	gh := mock_bump.NewMockGh(ctrl)
+	gh.EXPECT().ViewRepository().Return(bytes.NewBufferString(repoDocs), &bytes.Buffer{}, nil)
+
+	b := bump.New(gh)
 	got, err := bump.ResolveRepository(b)
 	assert.NoError(t, err)
 	assert.Equal(t, "johnmanjiro13/gh-bump", got)
 }
 
 func TestBumper_listReleases(t *testing.T) {
-	b := bump.New(&mockGh{})
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	gh := mock_bump.NewMockGh(ctrl)
+	b := bump.New(gh)
+	gh.EXPECT().ListRelease(b.Repository(), b.IsCurrent()).
+		Return(bytes.NewBufferString(tagList), &bytes.Buffer{}, nil)
+
 	got, err := bump.ListReleases(b)
 	assert.NoError(t, err)
 	assert.Equal(t, fmt.Sprintf("Tags:\n%s", tagList), got)
 }
 
 func TestBumper_createRelease(t *testing.T) {
-	b := bump.New(&mockGh{})
-	got, err := bump.CreateRelease(b, "v1.0.0")
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	gh := mock_bump.NewMockGh(ctrl)
+	b := bump.New(gh)
+
+	const version = "v1.0.0"
+	gh.EXPECT().CreateRelease(version, b.Repository(), b.IsCurrent(), &bump.ReleaseOption{}).
+		Return(bytes.NewBufferString(version), &bytes.Buffer{}, nil)
+
+	got, err := bump.CreateRelease(b, version)
 	assert.NoError(t, err)
 	assert.Equal(t, "v1.0.0", got)
 }
diff --git a/bump/mock_bump/mock_bump.go b/bump/mock_bump/mock_bump.go
new file mode 100644
index 0000000..ab9e060
--- /dev/null
+++ b/bump/mock_bump/mock_bump.go
@@ -0,0 +1,100 @@
+// Code generated by MockGen. DO NOT EDIT.
+// Source: github.com/johnmanjiro13/gh-bump/bump (interfaces: Gh)
+
+// Package mock_bump is a generated GoMock package.
+package mock_bump
+
+import (
+	bytes "bytes"
+	reflect "reflect"
+
+	gomock "github.com/golang/mock/gomock"
+	bump "github.com/johnmanjiro13/gh-bump/bump"
+)
+
+// MockGh is a mock of Gh interface.
+type MockGh struct {
+	ctrl     *gomock.Controller
+	recorder *MockGhMockRecorder
+}
+
+// MockGhMockRecorder is the mock recorder for MockGh.
+type MockGhMockRecorder struct {
+	mock *MockGh
+}
+
+// NewMockGh creates a new mock instance.
+func NewMockGh(ctrl *gomock.Controller) *MockGh {
+	mock := &MockGh{ctrl: ctrl}
+	mock.recorder = &MockGhMockRecorder{mock}
+	return mock
+}
+
+// EXPECT returns an object that allows the caller to indicate expected use.
+func (m *MockGh) EXPECT() *MockGhMockRecorder {
+	return m.recorder
+}
+
+// CreateRelease mocks base method.
+func (m *MockGh) CreateRelease(arg0, arg1 string, arg2 bool, arg3 *bump.ReleaseOption) (*bytes.Buffer, *bytes.Buffer, error) {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "CreateRelease", arg0, arg1, arg2, arg3)
+	ret0, _ := ret[0].(*bytes.Buffer)
+	ret1, _ := ret[1].(*bytes.Buffer)
+	ret2, _ := ret[2].(error)
+	return ret0, ret1, ret2
+}
+
+// CreateRelease indicates an expected call of CreateRelease.
+func (mr *MockGhMockRecorder) CreateRelease(arg0, arg1, arg2, arg3 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "CreateRelease", reflect.TypeOf((*MockGh)(nil).CreateRelease), arg0, arg1, arg2, arg3)
+}
+
+// ListRelease mocks base method.
+func (m *MockGh) ListRelease(arg0 string, arg1 bool) (*bytes.Buffer, *bytes.Buffer, error) {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "ListRelease", arg0, arg1)
+	ret0, _ := ret[0].(*bytes.Buffer)
+	ret1, _ := ret[1].(*bytes.Buffer)
+	ret2, _ := ret[2].(error)
+	return ret0, ret1, ret2
+}
+
+// ListRelease indicates an expected call of ListRelease.
+func (mr *MockGhMockRecorder) ListRelease(arg0, arg1 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "ListRelease", reflect.TypeOf((*MockGh)(nil).ListRelease), arg0, arg1)
+}
+
+// ViewRelease mocks base method.
+func (m *MockGh) ViewRelease(arg0 string, arg1 bool) (*bytes.Buffer, *bytes.Buffer, error) {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "ViewRelease", arg0, arg1)
+	ret0, _ := ret[0].(*bytes.Buffer)
+	ret1, _ := ret[1].(*bytes.Buffer)
+	ret2, _ := ret[2].(error)
+	return ret0, ret1, ret2
+}
+
+// ViewRelease indicates an expected call of ViewRelease.
+func (mr *MockGhMockRecorder) ViewRelease(arg0, arg1 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "ViewRelease", reflect.TypeOf((*MockGh)(nil).ViewRelease), arg0, arg1)
+}
+
+// ViewRepository mocks base method.
+func (m *MockGh) ViewRepository() (*bytes.Buffer, *bytes.Buffer, error) {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "ViewRepository")
+	ret0, _ := ret[0].(*bytes.Buffer)
+	ret1, _ := ret[1].(*bytes.Buffer)
+	ret2, _ := ret[2].(error)
+	return ret0, ret1, ret2
+}
+
+// ViewRepository indicates an expected call of ViewRepository.
+func (mr *MockGhMockRecorder) ViewRepository() *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "ViewRepository", reflect.TypeOf((*MockGh)(nil).ViewRepository))
+}
diff --git a/go.mod b/go.mod
index 7f5a21a..ea0cde4 100644
--- a/go.mod
+++ b/go.mod
@@ -5,6 +5,7 @@ go 1.18
 require (
 	github.com/Masterminds/semver/v3 v3.1.1
 	github.com/cli/safeexec v1.0.0
+	github.com/golang/mock v1.6.0
 	github.com/manifoldco/promptui v0.9.0
 	github.com/spf13/cobra v1.4.0
 	github.com/stretchr/testify v1.7.1
diff --git a/go.sum b/go.sum
index 7f8a2bf..a137db9 100644
--- a/go.sum
+++ b/go.sum
@@ -13,6 +13,8 @@ github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ3
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/golang/mock v1.6.0 h1:ErTB+efbowRARo13NNdxyJji2egdxLGQhRaY+DUumQc=
+github.com/golang/mock v1.6.0/go.mod h1:p6yTPP+5HYm5mzsMV8JkE6ZKdX+/wYM6Hr+LicevLPs=
 github.com/inconshreveable/mousetrap v1.0.0 h1:Z8tu5sraLXCXIcARxBp/8cbvlwVa7Z1NHg9XEKhtSvM=
 github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
 github.com/kr/pretty v0.2.1 h1:Fmg33tUaq4/8ym9TJN1x7sLJnHVwhP33CNkpYV/7rwI=
@@ -33,9 +35,31 @@ github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.7.1 h1:5TQK59W5E3v0r2duFAb7P95B6hEeOyEnHRa8MjYSMTY=
 github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
+golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
+golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
+golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20181122145206-62eef0e2fa9b/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210510120138-977fb7262007 h1:gG67DSER+11cZvqIMb8S8bt0vZtiN6xWYARwirrOSfE=
 golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.1.1/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
+golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=

From dad585eea273aeb9ff0fa5c7bfa6d2f29a43f23f Mon Sep 17 00:00:00 2001
From: johnmanjiro13 <28798279+johnmanjiro13@users.noreply.github.com>
Date: Sat, 4 Jun 2022 19:37:06 +0900
Subject: [PATCH 04/10] test: add test for with options

---
 bump/bumper_test.go | 88 +++++++++++++++++++++++++++++++++++++++++++++
 bump/export_test.go | 32 +++++++++++++++++
 2 files changed, 120 insertions(+)

diff --git a/bump/bumper_test.go b/bump/bumper_test.go
index 306c280..c3a0307 100644
--- a/bump/bumper_test.go
+++ b/bump/bumper_test.go
@@ -53,6 +53,94 @@ func TestBumper_WithRepository(t *testing.T) {
 	}
 }
 
+func TestBumper_WithDraft(t *testing.T) {
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	gh := mock_bump.NewMockGh(ctrl)
+	b := bump.New(gh)
+	b.WithDraft()
+
+	assert.True(t, b.IsDraft())
+}
+
+func TestBumper_WithPrerelease(t *testing.T) {
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	gh := mock_bump.NewMockGh(ctrl)
+	b := bump.New(gh)
+	b.WithPrerelease()
+
+	assert.True(t, b.IsPrerelease())
+}
+
+func TestBumper_WithDiscussionCategory(t *testing.T) {
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	gh := mock_bump.NewMockGh(ctrl)
+	b := bump.New(gh)
+	b.WithDiscussionCategory("test")
+
+	assert.Equal(t, "test", b.DiscussionCategory())
+}
+
+func TestBumper_WithGenerateNotes(t *testing.T) {
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	gh := mock_bump.NewMockGh(ctrl)
+	b := bump.New(gh)
+	b.WithGenerateNotes()
+
+	assert.True(t, b.GenerateNotes())
+}
+
+func TestBumper_WithNotes(t *testing.T) {
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	gh := mock_bump.NewMockGh(ctrl)
+	b := bump.New(gh)
+	b.WithNotes("note")
+
+	assert.Equal(t, "note", b.Notes())
+}
+
+func TestBumper_WithNotesFile(t *testing.T) {
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	gh := mock_bump.NewMockGh(ctrl)
+	b := bump.New(gh)
+	b.WithNotesFile("filename")
+
+	assert.Equal(t, "filename", b.NotesFilename())
+}
+
+func TestBumper_WithTarget(t *testing.T) {
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	gh := mock_bump.NewMockGh(ctrl)
+	b := bump.New(gh)
+	b.WithTarget("target")
+
+	assert.Equal(t, "target", b.Target())
+}
+
+func TestBumper_WithTitle(t *testing.T) {
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	gh := mock_bump.NewMockGh(ctrl)
+	b := bump.New(gh)
+	b.WithTitle("title")
+
+	assert.Equal(t, "title", b.Title())
+}
+
 func TestBumper_ResolveRepository(t *testing.T) {
 	ctrl := gomock.NewController(t)
 	defer ctrl.Finish()
diff --git a/bump/export_test.go b/bump/export_test.go
index b620136..5bf720e 100644
--- a/bump/export_test.go
+++ b/bump/export_test.go
@@ -13,3 +13,35 @@ func (b *bumper) Repository() string {
 func (b *bumper) IsCurrent() bool {
 	return b.isCurrent
 }
+
+func (b *bumper) IsDraft() bool {
+	return b.isDraft
+}
+
+func (b *bumper) IsPrerelease() bool {
+	return b.isPrerelease
+}
+
+func (b *bumper) DiscussionCategory() string {
+	return b.discussionCategory
+}
+
+func (b *bumper) GenerateNotes() bool {
+	return b.generateNotes
+}
+
+func (b *bumper) Notes() string {
+	return b.notes
+}
+
+func (b *bumper) NotesFilename() string {
+	return b.notesFilename
+}
+
+func (b *bumper) Target() string {
+	return b.target
+}
+
+func (b *bumper) Title() string {
+	return b.title
+}

From 6952572e21d8f4fe4e6272cebcae0bdae8251eeb Mon Sep 17 00:00:00 2001
From: johnmanjiro13 <28798279+johnmanjiro13@users.noreply.github.com>
Date: Sat, 4 Jun 2022 19:58:15 +0900
Subject: [PATCH 05/10] test: test increment version

---
 bump/bumper.go      |  4 +++
 bump/bumper_test.go | 60 ++++++++++++++++++++++++++++++++++++++++++---
 bump/export_test.go |  2 ++
 3 files changed, 62 insertions(+), 4 deletions(-)

diff --git a/bump/bumper.go b/bump/bumper.go
index 6a34cf5..8a17ffd 100644
--- a/bump/bumper.go
+++ b/bump/bumper.go
@@ -202,6 +202,10 @@ func nextVersion(current *semver.Version) (*semver.Version, error) {
 		return nil, fmt.Errorf("failed to prompt. err: %w", err)
 	}
 
+	return incrementVersion(current, bumpType)
+}
+
+func incrementVersion(current *semver.Version, bumpType string) (*semver.Version, error) {
 	var next semver.Version
 	switch bumpType {
 	case "major":
diff --git a/bump/bumper_test.go b/bump/bumper_test.go
index c3a0307..566e7cd 100644
--- a/bump/bumper_test.go
+++ b/bump/bumper_test.go
@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"testing"
 
+	"github.com/Masterminds/semver/v3"
 	"github.com/golang/mock/gomock"
 	"github.com/stretchr/testify/assert"
 
@@ -15,7 +16,9 @@ import (
 const (
 	repoDocs = `name:   johnmanjiro13/gh-bump
 description:    gh extension for bumping version of a repository`
-	tagList = `v0.2.1  Latest  v0.2.1  2021-12-08T04:19:16Z`
+	tagList     = `v0.2.1  Latest  v0.2.1  2021-12-08T04:19:16Z`
+	releaseView = `title:  v0.1.0
+tag:    v0.1.0`
 )
 
 func TestBumper_WithRepository(t *testing.T) {
@@ -40,7 +43,7 @@ func TestBumper_WithRepository(t *testing.T) {
 	defer ctrl.Finish()
 
 	gh := mock_bump.NewMockGh(ctrl)
-	gh.EXPECT().ViewRepository().Return(bytes.NewBufferString(repoDocs), &bytes.Buffer{}, nil)
+	gh.EXPECT().ViewRepository().Return(bytes.NewBufferString(repoDocs), nil, nil)
 
 	for name, tt := range tests {
 		t.Run(name, func(t *testing.T) {
@@ -146,7 +149,7 @@ func TestBumper_ResolveRepository(t *testing.T) {
 	defer ctrl.Finish()
 
 	gh := mock_bump.NewMockGh(ctrl)
-	gh.EXPECT().ViewRepository().Return(bytes.NewBufferString(repoDocs), &bytes.Buffer{}, nil)
+	gh.EXPECT().ViewRepository().Return(bytes.NewBufferString(repoDocs), nil, nil)
 
 	b := bump.New(gh)
 	got, err := bump.ResolveRepository(b)
@@ -161,13 +164,62 @@ func TestBumper_listReleases(t *testing.T) {
 	gh := mock_bump.NewMockGh(ctrl)
 	b := bump.New(gh)
 	gh.EXPECT().ListRelease(b.Repository(), b.IsCurrent()).
-		Return(bytes.NewBufferString(tagList), &bytes.Buffer{}, nil)
+		Return(bytes.NewBufferString(tagList), nil, nil)
 
 	got, err := bump.ListReleases(b)
 	assert.NoError(t, err)
 	assert.Equal(t, fmt.Sprintf("Tags:\n%s", tagList), got)
 }
 
+func TestBumper_currentVersion(t *testing.T) {
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	gh := mock_bump.NewMockGh(ctrl)
+	b := bump.New(gh)
+
+	t.Run("new version", func(t *testing.T) {
+		gh.EXPECT().ViewRelease(b.Repository(), b.IsCurrent()).
+			Return(bytes.NewBufferString(releaseView), nil, nil)
+
+		got, isInitial, err := bump.CurrentVersion(b)
+		assert.NoError(t, err)
+		assert.False(t, isInitial)
+		want := semver.MustParse("v0.1.0")
+		assert.Equal(t, want, got)
+	})
+}
+
+func TestIncrementVersion(t *testing.T) {
+	current := semver.MustParse("v0.1.0")
+
+	tests := map[string]struct {
+		bumpType string
+		want     *semver.Version
+	}{
+		"major": {
+			bumpType: "major",
+			want:     semver.MustParse("v1.0.0"),
+		},
+		"minor": {
+			bumpType: "minor",
+			want:     semver.MustParse("v0.2.0"),
+		},
+		"patch": {
+			bumpType: "patch",
+			want:     semver.MustParse("v0.1.1"),
+		},
+	}
+
+	for name, tt := range tests {
+		t.Run(name, func(t *testing.T) {
+			got, err := bump.IncrementVersion(current, tt.bumpType)
+			assert.NoError(t, err)
+			assert.Equal(t, tt.want, got)
+		})
+	}
+}
+
 func TestBumper_createRelease(t *testing.T) {
 	ctrl := gomock.NewController(t)
 	defer ctrl.Finish()
diff --git a/bump/export_test.go b/bump/export_test.go
index 5bf720e..b3a2f4e 100644
--- a/bump/export_test.go
+++ b/bump/export_test.go
@@ -4,6 +4,8 @@ var (
 	ResolveRepository = (*bumper).resolveRepository
 	ListReleases      = (*bumper).listReleases
 	CreateRelease     = (*bumper).createRelease
+	CurrentVersion    = (*bumper).currentVersion
+	IncrementVersion  = incrementVersion
 )
 
 func (b *bumper) Repository() string {

From c4bc9b803c025f40d6dd1bcac9909baf66f97cbc Mon Sep 17 00:00:00 2001
From: johnmanjiro13 <28798279+johnmanjiro13@users.noreply.github.com>
Date: Sun, 5 Jun 2022 09:33:22 +0900
Subject: [PATCH 06/10] fix: create new bytes.Buffer

---
 gh/gh.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/gh/gh.go b/gh/gh.go
index aef9639..5fb117c 100644
--- a/gh/gh.go
+++ b/gh/gh.go
@@ -72,6 +72,8 @@ func (g *gh) CreateRelease(version string, repo string, isCurrent bool, option *
 }
 
 func runGh(args ...string) (sout, eout *bytes.Buffer, err error) {
+	sout = new(bytes.Buffer)
+	eout = new(bytes.Buffer)
 	ghBin, err := safeexec.LookPath("gh")
 	if err != nil {
 		err = fmt.Errorf("could not find gh. err: %w", err)

From 90e62afe26fc47f6019ec1726b17f231b0052547 Mon Sep 17 00:00:00 2001
From: johnmanjiro13 <28798279+johnmanjiro13@users.noreply.github.com>
Date: Sun, 5 Jun 2022 10:13:12 +0900
Subject: [PATCH 07/10] test: add tests for nextVersion and approve

---
 bump/bumper.go      | 18 ++++++++++-----
 bump/bumper_test.go | 56 +++++++++++++++++++++++++++++++++++++++++++++
 bump/export_test.go |  2 ++
 3 files changed, 70 insertions(+), 6 deletions(-)

diff --git a/bump/bumper.go b/bump/bumper.go
index 8a17ffd..35ed903 100644
--- a/bump/bumper.go
+++ b/bump/bumper.go
@@ -3,6 +3,8 @@ package bump
 import (
 	"bytes"
 	"fmt"
+	"io"
+	"os"
 	"strings"
 
 	"github.com/Masterminds/semver/v3"
@@ -107,13 +109,13 @@ func (b *bumper) Bump() error {
 	if isInitial {
 		nextVer = current
 	} else {
-		nextVer, err = nextVersion(current)
+		nextVer, err = nextVersion(current, os.Stdin, os.Stdout)
 		if err != nil {
 			return err
 		}
 	}
 
-	ok, err := approve(nextVer)
+	ok, err := approve(nextVer, os.Stdin, os.Stdout)
 	if err != nil {
 		return err
 	}
@@ -192,10 +194,12 @@ func newVersion() (*semver.Version, error) {
 	return semver.NewVersion(result)
 }
 
-func nextVersion(current *semver.Version) (*semver.Version, error) {
+func nextVersion(current *semver.Version, sin io.ReadCloser, sout io.WriteCloser) (*semver.Version, error) {
 	prompt := promptui.Select{
-		Label: fmt.Sprintf("Select next version. current: %s", current.Original()),
-		Items: []string{"patch", "minor", "major"},
+		Label:  fmt.Sprintf("Select next version. current: %s", current.Original()),
+		Items:  []string{"patch", "minor", "major"},
+		Stdin:  sin,
+		Stdout: sout,
 	}
 	_, bumpType, err := prompt.Run()
 	if err != nil {
@@ -220,7 +224,7 @@ func incrementVersion(current *semver.Version, bumpType string) (*semver.Version
 	return &next, nil
 }
 
-func approve(next *semver.Version) (bool, error) {
+func approve(next *semver.Version, sin io.ReadCloser, sout io.WriteCloser) (bool, error) {
 	validate := func(input string) error {
 		if input != "y" && input != "yes" && input != "n" && input != "no" {
 			return fmt.Errorf("invalid character. press y/n")
@@ -230,6 +234,8 @@ func approve(next *semver.Version) (bool, error) {
 	prompt := promptui.Prompt{
 		Label:    fmt.Sprintf("Create release %s ? [y/n]", next.Original()),
 		Validate: validate,
+		Stdin:    sin,
+		Stdout:   sout,
 	}
 	result, err := prompt.Run()
 	if err != nil {
diff --git a/bump/bumper_test.go b/bump/bumper_test.go
index 566e7cd..ab8079b 100644
--- a/bump/bumper_test.go
+++ b/bump/bumper_test.go
@@ -3,6 +3,8 @@ package bump_test
 import (
 	"bytes"
 	"fmt"
+	"io"
+	"strings"
 	"testing"
 
 	"github.com/Masterminds/semver/v3"
@@ -21,6 +23,8 @@ description:    gh extension for bumping version of a repository`
 tag:    v0.1.0`
 )
 
+var arrowDownAndEnter = []byte{14, 10}
+
 func TestBumper_WithRepository(t *testing.T) {
 	tests := map[string]struct {
 		repository     string
@@ -190,6 +194,58 @@ func TestBumper_currentVersion(t *testing.T) {
 	})
 }
 
+type mockWriteCloser struct {
+	bytes.Buffer
+}
+
+func (m *mockWriteCloser) Close() error {
+	return nil
+}
+
+func TestNextVersion(t *testing.T) {
+	sin := io.NopCloser(strings.NewReader(string(arrowDownAndEnter)))
+	sout := &mockWriteCloser{bytes.Buffer{}}
+	current := semver.MustParse("v0.1.0")
+	nextVer, err := bump.NextVersion(current, sin, sout)
+	fmt.Println(sout.String())
+	assert.NoError(t, err)
+	assert.Equal(t, semver.MustParse("v0.2.0"), nextVer)
+}
+
+func TestApprove(t *testing.T) {
+	tests := map[string]struct {
+		text string
+		want bool
+	}{
+		"approve with yes": {
+			text: "yes\n",
+			want: true,
+		},
+		"approve with y": {
+			text: "y\n",
+			want: true,
+		},
+		"disapprove with no": {
+			text: "no\n",
+			want: false,
+		},
+		"disapprove with n": {
+			text: "n\n",
+			want: false,
+		},
+	}
+
+	for name, tt := range tests {
+		t.Run(name, func(t *testing.T) {
+			sin := io.NopCloser(strings.NewReader(tt.text))
+			sout := &mockWriteCloser{bytes.Buffer{}}
+			got, err := bump.Approve(semver.MustParse("v0.1.0"), sin, sout)
+			assert.NoError(t, err)
+			assert.Equal(t, tt.want, got)
+		})
+	}
+}
+
 func TestIncrementVersion(t *testing.T) {
 	current := semver.MustParse("v0.1.0")
 
diff --git a/bump/export_test.go b/bump/export_test.go
index b3a2f4e..d9f391e 100644
--- a/bump/export_test.go
+++ b/bump/export_test.go
@@ -5,7 +5,9 @@ var (
 	ListReleases      = (*bumper).listReleases
 	CreateRelease     = (*bumper).createRelease
 	CurrentVersion    = (*bumper).currentVersion
+	NextVersion       = nextVersion
 	IncrementVersion  = incrementVersion
+	Approve           = approve
 )
 
 func (b *bumper) Repository() string {

From 39e3818be5a728273832c38b205e8058a49f9dfb Mon Sep 17 00:00:00 2001
From: johnmanjiro13 <28798279+johnmanjiro13@users.noreply.github.com>
Date: Sun, 5 Jun 2022 10:23:59 +0900
Subject: [PATCH 08/10] ci: remove -race option

---
 .github/workflows/ci.yaml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index b54db2c..7b396ab 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -27,6 +27,7 @@ jobs:
       - name: build
         run: go build .
       - name: test
-        run: go test -v -race -coverprofile="coverage.txt" -covermode=atomic ./...
+        # We would like to use -race option but promptui has a data race bug, so we don't use it.
+        run: go test -v -coverprofile="coverage.txt" -covermode=atomic ./...
       - name: upload coverage to codecov
         uses: codecov/codecov-action@v2

From fbd69a2af49d538bf616657e8acd20a99dbc0e67 Mon Sep 17 00:00:00 2001
From: johnmanjiro13 <28798279+johnmanjiro13@users.noreply.github.com>
Date: Sun, 5 Jun 2022 10:41:16 +0900
Subject: [PATCH 09/10] test: add a test for newVersion

---
 bump/bumper.go      |  6 ++++--
 bump/bumper_test.go | 15 ++++++++++++++-
 bump/export_test.go |  1 +
 3 files changed, 19 insertions(+), 3 deletions(-)

diff --git a/bump/bumper.go b/bump/bumper.go
index 35ed903..d924caf 100644
--- a/bump/bumper.go
+++ b/bump/bumper.go
@@ -156,7 +156,7 @@ func (b *bumper) currentVersion() (*semver.Version, bool, error) {
 	sout, eout, err := b.gh.ViewRelease(b.repository, b.isCurrent)
 	if err != nil {
 		if strings.Contains(eout.String(), "HTTP 404: Not Found") {
-			current, err := newVersion()
+			current, err := newVersion(os.Stdin, os.Stdout)
 			if err != nil {
 				return nil, isInitial, err
 			}
@@ -174,7 +174,7 @@ func (b *bumper) currentVersion() (*semver.Version, bool, error) {
 	return current, isInitial, nil
 }
 
-func newVersion() (*semver.Version, error) {
+func newVersion(sin io.ReadCloser, sout io.WriteCloser) (*semver.Version, error) {
 	validate := func(input string) error {
 		_, err := semver.NewVersion(input)
 		if err != nil {
@@ -186,6 +186,8 @@ func newVersion() (*semver.Version, error) {
 	prompt := promptui.Prompt{
 		Label:    "New version",
 		Validate: validate,
+		Stdin:    sin,
+		Stdout:   sout,
 	}
 	result, err := prompt.Run()
 	if err != nil {
diff --git a/bump/bumper_test.go b/bump/bumper_test.go
index ab8079b..96d0bec 100644
--- a/bump/bumper_test.go
+++ b/bump/bumper_test.go
@@ -202,6 +202,14 @@ func (m *mockWriteCloser) Close() error {
 	return nil
 }
 
+func TestNewVersion(t *testing.T) {
+	sin := io.NopCloser(strings.NewReader("v0.1.0\n"))
+	sout := &mockWriteCloser{bytes.Buffer{}}
+	newVer, err := bump.NewVersion(sin, sout)
+	assert.NoError(t, err)
+	assert.Equal(t, semver.MustParse("v0.1.0"), newVer)
+}
+
 func TestNextVersion(t *testing.T) {
 	sin := io.NopCloser(strings.NewReader(string(arrowDownAndEnter)))
 	sout := &mockWriteCloser{bytes.Buffer{}}
@@ -252,6 +260,7 @@ func TestIncrementVersion(t *testing.T) {
 	tests := map[string]struct {
 		bumpType string
 		want     *semver.Version
+		wantErr  error
 	}{
 		"major": {
 			bumpType: "major",
@@ -265,12 +274,16 @@ func TestIncrementVersion(t *testing.T) {
 			bumpType: "patch",
 			want:     semver.MustParse("v0.1.1"),
 		},
+		"invalid": {
+			bumpType: "invalid",
+			wantErr:  fmt.Errorf("invalid type"),
+		},
 	}
 
 	for name, tt := range tests {
 		t.Run(name, func(t *testing.T) {
 			got, err := bump.IncrementVersion(current, tt.bumpType)
-			assert.NoError(t, err)
+			assert.Equal(t, tt.wantErr, err)
 			assert.Equal(t, tt.want, got)
 		})
 	}
diff --git a/bump/export_test.go b/bump/export_test.go
index d9f391e..c6c2389 100644
--- a/bump/export_test.go
+++ b/bump/export_test.go
@@ -5,6 +5,7 @@ var (
 	ListReleases      = (*bumper).listReleases
 	CreateRelease     = (*bumper).createRelease
 	CurrentVersion    = (*bumper).currentVersion
+	NewVersion        = newVersion
 	NextVersion       = nextVersion
 	IncrementVersion  = incrementVersion
 	Approve           = approve

From 01b8f3518184cf61528853e5d3d7dc7c7dd7c8e2 Mon Sep 17 00:00:00 2001
From: johnmanjiro13 <28798279+johnmanjiro13@users.noreply.github.com>
Date: Sun, 5 Jun 2022 10:46:34 +0900
Subject: [PATCH 10/10] refactor: use bool literal for isInisital

---
 bump/bumper.go | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

diff --git a/bump/bumper.go b/bump/bumper.go
index d924caf..13da3d5 100644
--- a/bump/bumper.go
+++ b/bump/bumper.go
@@ -151,27 +151,25 @@ func (b *bumper) listReleases() (string, error) {
 	return fmt.Sprintf("Tags:\n%s", sout.String()), nil
 }
 
-func (b *bumper) currentVersion() (*semver.Version, bool, error) {
-	var isInitial bool
+func (b *bumper) currentVersion() (current *semver.Version, isInitial bool, err error) {
 	sout, eout, err := b.gh.ViewRelease(b.repository, b.isCurrent)
 	if err != nil {
 		if strings.Contains(eout.String(), "HTTP 404: Not Found") {
-			current, err := newVersion(os.Stdin, os.Stdout)
+			current, err = newVersion(os.Stdin, os.Stdout)
 			if err != nil {
-				return nil, isInitial, err
+				return nil, false, err
 			}
-			isInitial = true
-			return current, isInitial, nil
+			return current, true, nil
 		}
-		return nil, isInitial, err
+		return nil, false, err
 	}
 	viewOut := strings.Split(sout.String(), "\n")[1]
 	tag := strings.TrimSpace(strings.Split(viewOut, ":")[1])
-	current, err := semver.NewVersion(tag)
+	current, err = semver.NewVersion(tag)
 	if err != nil {
-		return nil, isInitial, fmt.Errorf("invalid version. err: %w", err)
+		return nil, false, fmt.Errorf("invalid version. err: %w", err)
 	}
-	return current, isInitial, nil
+	return current, false, nil
 }
 
 func newVersion(sin io.ReadCloser, sout io.WriteCloser) (*semver.Version, error) {