Function TestPolybiusDecrypt

cipher/polybius/polybius_test.go:110–152

(t *testing.T)

}

func TestPolybiusDecrypt(t *testing.T) {
	t.Parallel()
	cases := []struct {
		name string
		text string
		want string
	}{
		{
			name: "correct decryption", text: "OGGFOOHFOHFHOOHHEHOEFFGFEEEHHHGG", want: "HOGEFUGAPIYOSPAM",
		},
		{
			name: "invalid decryption(position of even number)", text: "hogz", want: "failed decipher: Z does not exist in characters",
		},
		{
			name: "invalid decryption(position of odd number)", text: "hode", want: "failed decipher: D does not exist in characters",
		},
		{
			name: "invalid text size which is odd", text: "hog", want: "failed decipher: the size of \"chars\" must be even",
		},
	}
	// initialize
	const (
		size       = 5
		characters = "HogeF"
		key        = "abcdefghijklmnopqrstuvwxy"
	)
	p, err := NewPolybius(key, size, characters)
	if err != nil {
		t.Fatalf("failed NewPolybius: %v", err)
	}
	for _, tc := range cases {
		t.Run(tc.name, func(t *testing.T) {
			encrypted, err := p.Decrypt(tc.text)
			if err != nil {
				if err.Error() != tc.want {
					t.Errorf("failed Encrypt: %v", err)
				}
			} else if encrypted != tc.want {
				t.Errorf("Encrypt: %v, want: %v", encrypted, tc.want)
			}
		})
	}
}

func FuzzPolybius(f *testing.F) {
	const (