Merge pull request #45 from Code-Hex/add/tests

added tests

Author: Code-Hex

cow.go

@@ -13,7 +13,6 @@ type Cow struct {
 	typ             *CowFile
 	thoughts        rune
 	thinking        bool
-	bold            bool
 	ballonWidth     int
 	disableWordWrap bool
 
@@ -185,14 +184,6 @@ func pickCow() (*CowFile, error) {
 	}, nil
 }
 
-// Bold enables bold mode
-func Bold() Option {
-	return func(c *Cow) error {
-		c.bold = true
-		return nil
-	}
-}
-
 // BallonWidth specifies ballon size
 func BallonWidth(size uint) Option {
 	return func(c *Cow) error {

cow_test.go

@@ -1,6 +1,8 @@
 package cowsay
 
 import (
+	"errors"
+	"fmt"
 	"testing"
 
 	"github.com/google/go-cmp/cmp"
@@ -84,8 +86,11 @@ func TestCow_Clone(t *testing.T) {
 
 	t.Run("random", func(t *testing.T) {
 		cow, _ := New(
+			Type(""),
 			Thinking(),
 			Thoughts('o'),
+			Eyes("xx"),
+			Tongue("u"),
 			Random(),
 		)
 
@@ -97,6 +102,21 @@ func TestCow_Clone(t *testing.T) {
 			t.Errorf("(-want, +got)\n%s", diff)
 		}
 	})
+
+	t.Run("error", func(t *testing.T) {
+		cow, err := New()
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		wantErr := errors.New("error")
+		_, err = cow.Clone(func(*Cow) error {
+			return wantErr
+		})
+		if wantErr != err {
+			t.Fatalf("want %v, but got %v", wantErr, err)
+		}
+	})
 }
 
 func Test_adjustTo2Chars(t *testing.T) {
@@ -134,3 +154,14 @@ func Test_adjustTo2Chars(t *testing.T) {
 		})
 	}
 }
+
+func TestNotFound_Error(t *testing.T) {
+	file := "test"
+	n := &NotFound{
+		Cowfile: file,
+	}
+	want := fmt.Sprintf("not found %q cowfile", file)
+	if want != n.Error() {
+		t.Fatalf("want %q but got %q", want, n.Error())
+	}
+}

cowsay.go

@@ -132,14 +132,6 @@ func (cow *Cow) GetCow() (string, error) {
 		return "", err
 	}
 
-	if len(cow.eyes) > 2 {
-		cow.eyes = cow.eyes[0:2]
-	}
-
-	if len(cow.tongue) > 2 {
-		cow.tongue = cow.tongue[0:2]
-	}
-
 	r := strings.NewReplacer(
 		"\\\\", "\\",
 		"\\@", "@",

cowsay_test.go

@@ -2,6 +2,8 @@ package cowsay
 
 import (
 	"bytes"
+	"errors"
+	"io/ioutil"
 	"os"
 	"path/filepath"
 	"testing"
@@ -152,3 +154,78 @@ func TestCowFile_ReadAll(t *testing.T) {
 	}
 
 }
+
+const defaultSay = ` ________ 
+< cowsay >
+ -------- 
+        \   ^__^
+         \  (oo)\_______
+            (__)\       )\/\
+                ||----w |
+                ||     ||`
+
+func TestSay(t *testing.T) {
+	type args struct {
+		phrase  string
+		options []Option
+	}
+	tests := []struct {
+		name     string
+		args     args
+		wantFile string
+		wantErr  bool
+	}{
+		{
+			name: "default",
+			args: args{
+				phrase: "hello!",
+			},
+			wantFile: "default.cow",
+			wantErr:  false,
+		},
+		{
+			name: "nest",
+			args: args{
+				phrase: defaultSay,
+				options: []Option{
+					DisableWordWrap(),
+				},
+			},
+			wantFile: "nest.cow",
+			wantErr:  false,
+		},
+		{
+			name: "error",
+			args: args{
+				phrase: "error",
+				options: []Option{
+					func(*Cow) error {
+						return errors.New("error")
+					},
+				},
+			},
+			wantErr: true,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got, err := Say(tt.args.phrase, tt.args.options...)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("Say() error = %v, wantErr %v", err, tt.wantErr)
+				return
+			}
+			if tt.wantErr {
+				return
+			}
+			filename := filepath.Join("testdata", tt.wantFile)
+			content, err := ioutil.ReadFile(filename)
+			if err != nil {
+				t.Fatal(err)
+			}
+			want := string(content)
+			if want != got {
+				t.Fatalf("want\n%s\n\ngot\n%s", want, got)
+			}
+		})
+	}
+}

testdata/default.cow

@@ -0,0 +1,8 @@
+ ________ 
+< hello! >
+ -------- 
+        \   ^__^
+         \  (oo)\_______
+            (__)\       )\/\
+                ||----w |
+                ||     ||

testdata/nest.cow

@@ -0,0 +1,15 @@
+ ______________________________ 
+/  ________                    \
+| < cowsay >                   |
+|  --------                    |
+|         \   ^__^             |
+|          \  (oo)\_______     |
+|             (__)\       )\/\ |
+|                 ||----w |    |
+\                 ||     ||    /
+ ------------------------------ 
+        \   ^__^
+         \  (oo)\_______
+            (__)\       )\/\
+                ||----w |
+                ||     ||