添加 github.com/pion/dtls 代码

dtls-2.0.9/pkg/crypto/fingerprint/hash_test.go

@@ -0,0 +1,41 @@
+package fingerprint
+
+import (
+	"crypto"
+	"errors"
+	"testing"
+)
+
+func TestHashFromString(t *testing.T) {
+	t.Run("InvalidHashAlgorithm", func(t *testing.T) {
+		_, err := HashFromString("invalid-hash-algorithm")
+		if !errors.Is(err, errInvalidHashAlgorithm) {
+			t.Errorf("Expected error '%v' for invalid hash name, got '%v'", errInvalidHashAlgorithm, err)
+		}
+	})
+	t.Run("ValidHashAlgorithm", func(t *testing.T) {
+		h, err := HashFromString("sha-512")
+		if err != nil {
+			t.Fatalf("Unexpected error for valid hash name, got '%v'", err)
+		}
+		if h != crypto.SHA512 {
+			t.Errorf("Expected hash ID of %d, got %d", int(crypto.SHA512), int(h))
+		}
+	})
+}
+
+func TestStringFromHash_Roundtrip(t *testing.T) {
+	for _, h := range nameToHash() {
+		s, err := StringFromHash(h)
+		if err != nil {
+			t.Fatalf("Unexpected error for valid hash algorithm, got '%v'", err)
+		}
+		h2, err := HashFromString(s)
+		if err != nil {
+			t.Fatalf("Unexpected error for valid hash name, got '%v'", err)
+		}
+		if h != h2 {
+			t.Errorf("Hash value doesn't match, expected: 0x%x, got 0x%x", h, h2)
+		}
+	}
+}