diff --git a/.gitignore b/.gitignore
index 7056f80..9326600 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,2 @@
 .env
-xoracle
+xoracle*
diff --git a/README.md b/README.md
index 6d07afb..0ff09ac 100644
--- a/README.md
+++ b/README.md
@@ -180,6 +180,21 @@ see the hosted Docker application.
 Enter the encoded text in the input box and click the "Process" button. The
 processed data will show in the output box, or an error will display on the screen.
 
+Feel free to use the small example below, or the text from the included [example.txt](./example.txt)
+file in the repository to test it out.
+
+```sh
+// Base64 encoded
+MiciMCQ2YTYkOjViJTclJyQ=
+```
+
+or
+
+```sh
+// Hex encoded
+3227223024366136243a35622537252724
+```
+
 ## About
 
 This project was created while going through the [CryptoPals](https://cryptopals.com/)
diff --git a/example.txt b/example.txt
new file mode 100644
index 0000000..cecdb81
--- /dev/null
+++ b/example.txt
@@ -0,0 +1,64 @@
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+BgBHVBwNRU0HBAxTEjwMHghJGgkRTxRMIRpHKwAFHUdZEQQJAGQmB1MANxYG
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+MVQHYhoGGksABwdJAB0ASTpFNwQcTRoDBBgDUkksGioRHUkKCE5THEVCC08E
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+ACxSQTZSDxsJSw1ICFUdBgpTNjUcXk0OAUEDBxtUPRpCLQtFTgBPVB8NSRoK
+SREKLUUVAklkERgOCwAsUkE2Ug8bCUsNSAhVHQYKUyI7RQUFABoEVA0dWXQa
+Ry1SHgYOVBFIB08XQ0kUCnRvPgwQTgUbGBwAOVREYhAGAQBJEUgETgpPGR8E
+LUUGBQgaQRIaHEshGk03AQANR1QdBAkAFwAcUwE9AFxNY2QxGA4LACxSQTZS
+DxsJSw1ICFUdBgpTJjsIF00GAE1ULB1NPRpPLF5JAgJUVAUAAAYKCAFFXjUe
+DBBOFRwOBgA+T04pC0kDElMdC0VXBgYdFkU2CgtNEAEUVBwTWXhTVG5SGg8e
+AB0cRSo+AwgKRSANExlJCBQaBAsANU9TKxFJL0dMHRwRTAtPBRwQMAAATQcB
+FlRlIkw5QwA2GggaR0YBBg5ZTgIcAAw3SVIaAQcVEU8QTyEaYy0fDE4ITlhI
+Jk8DCkkcC3hFMQIEC0EbAVIqCFZBO1IdBgZUVA4QTgUWSR4QJwwRTWM=
diff --git a/pkg/decryption/decryption_test.go b/pkg/decryption/decryption_test.go
new file mode 100644
index 0000000..b7a9f47
--- /dev/null
+++ b/pkg/decryption/decryption_test.go
@@ -0,0 +1,49 @@
+package decryption
+
+import (
+	"reflect"
+	"testing"
+
+	"github.com/nronzel/xoracle/utils"
+)
+
+func TestProcessKeySizes(t *testing.T) {
+	decodedBase64, _ := utils.DecodeBase64("MiciMCQ2YTYkOjViJTclJyQ=")
+	decodedHex, _ := utils.DecodeHex("3227223024366136243a35622537252724")
+	tests := []struct {
+		name        string
+		topKeySizes []int
+		data        []byte
+		expected    []DecryptionResult
+	}{
+		{name: "Base64 Decoded - Should Decrypt",
+			topKeySizes: []int{2},
+			data:        decodedBase64,
+			expected: []DecryptionResult{
+				{KeySize: 2,
+					Key:           []byte("AB"),
+					DecryptedData: "secret text dudee",
+				},
+			},
+		},
+		{name: "Base64 Decoded - Should Decrypt",
+			topKeySizes: []int{2},
+			data:        decodedHex,
+			expected: []DecryptionResult{
+				{KeySize: 2,
+					Key:           []byte("AB"),
+					DecryptedData: "secret text dudee",
+				},
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got := ProcessKeySizes(tt.topKeySizes, tt.data)
+			if !reflect.DeepEqual(got[0], tt.expected[0]) {
+				t.Errorf("did not receive expected result: %v", got[0])
+			}
+		})
+	}
+}
diff --git a/utils/utils_test.go b/utils/utils_test.go
index ff44d3c..efc2437 100644
--- a/utils/utils_test.go
+++ b/utils/utils_test.go
@@ -11,6 +11,9 @@ func TestScoreText(t *testing.T) {
 		score float64
 	}{
 		{name: "Valid score", text: "What Do You Want From Me", score: 158.66299999999998},
+		{name: "No text", text: "", score: 0.0},
+		{name: "Single letter", text: "a", score: 8.167},
+		{name: "Space", text: " ", score: 13.000},
 	}
 
 	for _, tt := range tests {