diff --git a/cmd/alias_test.go b/cmd/alias_test.go
new file mode 100644
index 00000000..37401ac4
--- /dev/null
+++ b/cmd/alias_test.go
@@ -0,0 +1,81 @@
+package cmd
+
+import (
+	"io/ioutil"
+	"os"
+	"testing"
+)
+
+func Test_updateFile(t *testing.T) {
+	testFile, _ := ioutil.TempFile("", "")
+	defer os.Remove(testFile.Name())
+	type args struct {
+		cxt  string
+		path string
+	}
+	tests := []struct {
+		name    string
+		args    args
+		wantErr bool
+	}{
+		// TODO: Add test cases.
+		{
+			name: "test",
+			args: args{
+				cxt:  "test",
+				path: testFile.Name(),
+			},
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if err := updateFile(tt.args.cxt, tt.args.path); (err != nil) != tt.wantErr {
+				t.Errorf("updateFile() error = %v, wantErr %v", err, tt.wantErr)
+			}
+			file, err := os.ReadFile(tt.args.path)
+			if err != nil {
+				t.Errorf("updateFile() error = %v, wantErr %v", err, tt.wantErr)
+			}
+			if string(file) != tt.args.cxt {
+				t.Errorf("updateFile() error = %v, wantErr %v", err, tt.wantErr)
+			}
+		})
+	}
+}
+
+func Test_writeAppend(t *testing.T) {
+	bashFile, _ := ioutil.TempFile("", ".bash")
+	defer os.Remove(bashFile.Name())
+	type args struct {
+		context string
+		path    string
+	}
+	tests := []struct {
+		name    string
+		args    args
+		wantErr bool
+	}{
+		// TODO: Add test cases.
+		{
+			name: "test",
+			args: args{
+				context: "test",
+				path:    bashFile.Name(),
+			},
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if err := writeAppend(tt.args.context, tt.args.path); (err != nil) != tt.wantErr {
+				t.Errorf("writeAppend() error = %v, wantErr %v", err, tt.wantErr)
+			}
+			file, err := os.ReadFile(tt.args.path)
+			if err != nil {
+				t.Errorf("writeAppend() error = %v, wantErr %v", err, tt.wantErr)
+			}
+			if string(file) != tt.args.context+"\n" {
+				t.Errorf("writeAppend() error = %v, wantErr %v", err, tt.wantErr)
+			}
+		})
+	}
+}