first commit

framework/encrypt/encrypt_test.go

@@ -0,0 +1,245 @@
+package encrypt
+
+import (
+	"testing"
+
+	bifrost "github.com/maximhq/bifrost/core"
+	"github.com/maximhq/bifrost/core/schemas"
+)
+
+func TestEncryptDecrypt(t *testing.T) {
+	// Set a test encryption key
+	testKey := "test-encryption-key-for-testing-32bytes"
+	Init(testKey, bifrost.NewDefaultLogger(schemas.LogLevelInfo))
+
+	testCases := []struct {
+		name      string
+		plaintext string
+	}{
+		{
+			name:      "Simple text",
+			plaintext: "hello world",
+		},
+		{
+			name:      "AWS Access Key",
+			plaintext: "AKIAIOSFODNN7EXAMPLE",
+		},
+		{
+			name:      "AWS Secret Key",
+			plaintext: "wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY",
+		},
+		{
+			name:      "Empty string",
+			plaintext: "",
+		},
+		{
+			name:      "Special characters",
+			plaintext: "!@#$%^&*()_+-=[]{}|;':\",./<>?`~",
+		},
+		{
+			name:      "Long text",
+			plaintext: "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.",
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			// Encrypt
+			encrypted, err := Encrypt(tc.plaintext)
+			if err != nil {
+				t.Fatalf("Failed to encrypt: %v", err)
+			}
+
+			// For empty strings, encryption should return empty
+			if tc.plaintext == "" {
+				if encrypted != "" {
+					t.Errorf("Expected empty string for empty input, got: %s", encrypted)
+				}
+				return
+			}
+
+			// Encrypted text should be different from plaintext
+			if encrypted == tc.plaintext {
+				t.Errorf("Encrypted text should be different from plaintext")
+			}
+
+			// Decrypt
+			decrypted, err := Decrypt(encrypted)
+			if err != nil {
+				t.Fatalf("Failed to decrypt: %v", err)
+			}
+
+			// Decrypted text should match original plaintext
+			if decrypted != tc.plaintext {
+				t.Errorf("Decrypted text does not match original.\nExpected: %s\nGot: %s", tc.plaintext, decrypted)
+			}
+		})
+	}
+}
+
+func TestEncryptDeterminism(t *testing.T) {
+	// Set a test encryption key
+	testKey := "test-encryption-key-for-testing-32bytes"
+	Init(testKey, bifrost.NewDefaultLogger(schemas.LogLevelInfo))
+
+	plaintext := "test-plaintext"
+
+	// Encrypt the same text twice
+	encrypted1, err := Encrypt(plaintext)
+	if err != nil {
+		t.Fatalf("Failed to encrypt: %v", err)
+	}
+	encrypted2, err := Encrypt(plaintext)
+	if err != nil {
+		t.Fatalf("Failed to encrypt: %v", err)
+	}
+
+	// They should be different (due to random nonce)
+	if encrypted1 == encrypted2 {
+		t.Errorf("Two encryptions of the same plaintext should produce different ciphertexts (due to random nonce)")
+	}
+
+	// But both should decrypt to the same plaintext
+	decrypted1, err := Decrypt(encrypted1)
+	if err != nil {
+		t.Fatalf("Failed to decrypt first: %v", err)
+	}
+	decrypted2, err := Decrypt(encrypted2)
+	if err != nil {
+		t.Fatalf("Failed to decrypt second: %v", err)
+	}
+
+	if decrypted1 != plaintext || decrypted2 != plaintext {
+		t.Errorf("Both decryptions should match original plaintext")
+	}
+}
+
+func TestDecryptInvalidData(t *testing.T) {
+	// Set a test encryption key
+	testKey := "test-encryption-key-for-testing-32bytes"
+	Init(testKey, bifrost.NewDefaultLogger(schemas.LogLevelInfo))
+
+	testCases := []struct {
+		name       string
+		ciphertext string
+	}{
+		{
+			name:       "Invalid base64",
+			ciphertext: "not-valid-base64!@#$",
+		},
+		{
+			name:       "Valid base64 but invalid ciphertext",
+			ciphertext: "YWJjZGVmZ2hpamtsbW5vcA==",
+		},
+		{
+			name:       "Too short ciphertext",
+			ciphertext: "YWJj",
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			_, err := Decrypt(tc.ciphertext)
+			if err == nil {
+				t.Errorf("Expected error when decrypting invalid data, got nil")
+			}
+		})
+	}
+}
+
+func TestKDFWithVariousKeyLengths(t *testing.T) {
+	// Test that keys of various lengths work correctly with KDF
+	testCases := []struct {
+		name string
+		key  string
+	}{
+		{
+			name: "Short key (8 bytes)",
+			key:  "shortkey",
+		},
+		{
+			name: "Medium key (16 bytes)",
+			key:  "medium-key-16byt",
+		},
+		{
+			name: "Long key (32 bytes)",
+			key:  "this-is-a-32-byte-long-key!!",
+		},
+		{
+			name: "Very long key (64 bytes)",
+			key:  "this-is-a-very-long-key-that-is-definitely-more-than-64-bytes",
+		},
+	}
+
+	plaintext := "test-data-for-encryption"
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			// Initialize with this key
+			Init(tc.key, bifrost.NewDefaultLogger(schemas.LogLevelInfo))
+
+			// Encrypt
+			encrypted, err := Encrypt(plaintext)
+			if err != nil {
+				t.Fatalf("Failed to encrypt: %v", err)
+			}
+
+			// Should produce valid ciphertext
+			if encrypted == plaintext {
+				t.Errorf("Encrypted text should be different from plaintext")
+			}
+
+			// Decrypt should work
+			decrypted, err := Decrypt(encrypted)
+			if err != nil {
+				t.Fatalf("Failed to decrypt with %s: %v", tc.name, err)
+			}
+
+			if decrypted != plaintext {
+				t.Errorf("Decrypted text does not match original.\nExpected: %s\nGot: %s", plaintext, decrypted)
+			}
+		})
+	}
+}
+
+func TestKDFDeterministic(t *testing.T) {
+	// Test that the same passphrase always produces the same derived key
+	passphrase := "test-passphrase"
+	plaintext := "test-data"
+
+	// Initialize with passphrase and encrypt
+	Init(passphrase, bifrost.NewDefaultLogger(schemas.LogLevelInfo))
+	encrypted1, err := Encrypt(plaintext)
+	if err != nil {
+		t.Fatalf("Failed to encrypt: %v", err)
+	}
+
+	// Re-initialize with same passphrase (simulating restart)
+	Init(passphrase, bifrost.NewDefaultLogger(schemas.LogLevelInfo))
+	
+	// Should be able to decrypt the previously encrypted data
+	decrypted, err := Decrypt(encrypted1)
+	if err != nil {
+		t.Fatalf("Failed to decrypt after re-initialization: %v", err)
+	}
+
+	if decrypted != plaintext {
+		t.Errorf("Decrypted text does not match original after re-initialization.\nExpected: %s\nGot: %s", plaintext, decrypted)
+	}
+
+	// Encrypt again with same passphrase
+	encrypted2, err := Encrypt(plaintext)
+	if err != nil {
+		t.Fatalf("Failed to encrypt: %v", err)
+	}
+
+	// Should be able to decrypt both (even though they're different due to nonce)
+	decrypted2, err := Decrypt(encrypted2)
+	if err != nil {
+		t.Fatalf("Failed to decrypt second encryption: %v", err)
+	}
+
+	if decrypted2 != plaintext {
+		t.Errorf("Second decryption does not match original.\nExpected: %s\nGot: %s", plaintext, decrypted2)
+	}
+}