Add test

.gitignore

@@ -1,4 +1,4 @@
 .go-version
 dist/
-coverage.txt
+coverage.out
 /ghput

gh/gh.go

@@ -366,12 +366,12 @@ func (g *Gh) CreateRelease(ctx context.Context, tag, title, body string) error {
 
 func unique(in []string) []string {
 	m := map[string]struct{}{}
+	u := []string{}
 	for _, s := range in {
+		if _, ok := m[s]; !ok {
+			u = append(u, s)
+		}
 		m[s] = struct{}{}
 	}
-	u := []string{}
-	for s := range m {
-		u = append(u, s)
-	}
 	return u
 }

gh/gh_test.go

@@ -1,9 +1,39 @@
 package gh
 
 import (
+	"context"
 	"testing"
+
+	"github.com/google/go-cmp/cmp"
 )
 
+func TestMakeComment(t *testing.T) {
+	ctx := context.Background()
+	tests := []struct {
+		body   string
+		header string
+		footer string
+		want   string
+	}{
+		{"", "", "", "<!-- Put by ghput -->\n"},
+		{"body", "header", "footer", "header\nbody\nfooter\n<!-- Put by ghput -->\n"},
+		{"body\n", "header\n", "footer\n", "header\nbody\nfooter\n<!-- Put by ghput -->\n"},
+	}
+	for _, tt := range tests {
+		gh, err := New("o", "r", "")
+		if err != nil {
+			t.Fatal(err)
+		}
+		got, err := gh.MakeComment(ctx, tt.body, tt.header, tt.footer)
+		if err != nil {
+			t.Fatal(err)
+		}
+		if got != tt.want {
+			t.Errorf("got\n%v\nwant\n%v", got, tt.want)
+		}
+	}
+}
+
 func TestCommentFooter(t *testing.T) {
 	tests := []struct {
 		key  string
@@ -30,3 +60,21 @@ func TestCommentFooter(t *testing.T) {
 		}
 	}
 }
+
+func TestUnique(t *testing.T) {
+	tests := []struct {
+		in   []string
+		want []string
+	}{
+		{[]string{}, []string{}},
+		{[]string{"a", "c", "b"}, []string{"a", "c", "b"}},
+		{[]string{"b", "c", "b"}, []string{"b", "c"}},
+		{[]string{"a", "a", "b"}, []string{"a", "b"}},
+	}
+	for _, tt := range tests {
+		got := unique(tt.in)
+		if diff := cmp.Diff(got, tt.want, nil); diff != "" {
+			t.Errorf("%s", diff)
+		}
+	}
+}

go.mod

@@ -3,9 +3,10 @@ module github.com/k1LoW/ghput
 go 1.17
 
 require (
+	github.com/google/go-cmp v0.5.6
 	github.com/google/go-github/v39 v39.2.0
 	github.com/itchyny/timefmt-go v0.1.3
-	github.com/k1LoW/go-github-client/v39 v39.2.1
+	github.com/k1LoW/go-github-client/v39 v39.2.2
 	github.com/mattn/go-colorable v0.1.11
 	github.com/spf13/cobra v1.2.1
 )

go.sum

@@ -180,8 +180,8 @@ github.com/json-iterator/go v1.1.11/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/
 github.com/jstemmer/go-junit-report v0.0.0-20190106144839-af01ea7f8024/go.mod h1:6v2b51hI/fHJwM22ozAgKL4VKDeJcHhJFhtBdhmNjmU=
 github.com/jstemmer/go-junit-report v0.9.1/go.mod h1:Brl9GWCQeLvo8nXZwPNNblvFj/XSXhF0NWZEnDohbsk=
 github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU=
-github.com/k1LoW/go-github-client/v39 v39.2.1 h1:JB+NKQ50pKV4fCbB5+vuD2KZRKaeEOyKe0FDqokJZ8A=
-github.com/k1LoW/go-github-client/v39 v39.2.1/go.mod h1:fb0+5/ZUFspjDNIOqmzCb1s2KVI1UIOrDAQprhfhecY=
+github.com/k1LoW/go-github-client/v39 v39.2.2 h1:BML9eBIvMnlM+u2awm8hugeaT//dd8ilR3sM5i/FzG8=
+github.com/k1LoW/go-github-client/v39 v39.2.2/go.mod h1:fb0+5/ZUFspjDNIOqmzCb1s2KVI1UIOrDAQprhfhecY=
 github.com/kisielk/errcheck v1.5.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI2bnpBCr8=
 github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
 github.com/kr/fs v0.1.0/go.mod h1:FFnZGqtBN9Gxj7eW1uZ42v5BccTP0vu6NEaFoC2HwRg=
@@ -471,6 +471,7 @@ golang.org/x/tools v0.1.2/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 v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 google.golang.org/api v0.4.0/go.mod h1:8k5glujaEP+g9n7WNsDg8QP6cUVNI86fCNMcbazEtwE=
 google.golang.org/api v0.7.0/go.mod h1:WtwebWUNSVBH/HAw79HIFXZNqEvBhG+Ra+ax0hx3E3M=