1 files changed, 62 insertions, 0 deletions
diff --git a/internal/identity/cli_test.go b/internal/identity/cli_test.go
new file mode 100644
index 0000000..e096fe4
--- /dev/null
+++ b/internal/identity/cli_test.go
@@ -0,0 +1,62 @@
+package identity
+
+import (
+	"crypto/ed25519"
+	"crypto/rand"
+	"crypto/sha256"
+	"encoding/base64"
+	"encoding/hex"
+	"strings"
+	"testing"
+)
+
+func TestFormatFaceHeader(t *testing.T) {
+	header := FormatFaceHeader(strings.Repeat("A", 200))
+	for _, line := range strings.Split(header, "\r\n") {
+		if len(line) > 76 {
+			t.Fatalf("folded line length = %d", len(line))
+		}
+	}
+}
+
+func TestGenerateFaceUsesExistingCLI(t *testing.T) {
+	if _, err := FindCLI(); err != nil {
+		t.Skip(err)
+	}
+	value, err := GenerateFace("reader@example.org")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if _, err := decodeFacePNG(value); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestGenerateVFaceBindsUsernameEmailAndPublicKey(t *testing.T) {
+	if _, err := FindCLI(); err != nil {
+		t.Skip(err)
+	}
+	public, _, err := ed25519.GenerateKey(rand.Reader)
+	if err != nil {
+		t.Fatal(err)
+	}
+	publicKey := base64.StdEncoding.EncodeToString(public)
+	profile, err := GenerateVFace("pseudonym", "reader@example.org", publicKey)
+	if err != nil {
+		t.Fatal(err)
+	}
+	input := "pseudonym|reader@example.org|" + publicKey
+	identityHash := sha256.Sum256([]byte(input))
+	if profile.Input != input || profile.IdentityHash != hex.EncodeToString(identityHash[:]) {
+		t.Fatalf("unexpected VFace identity: %#v", profile)
+	}
+	if profile.PNGHash == "" || profile.FaceBase64 == "" {
+		t.Fatalf("VFace image metadata is incomplete: %#v", profile)
+	}
+	headers := strings.Join(profile.Headers(), "\n")
+	for _, want := range []string{"X-VFace-Version: 1", "X-Ed25519-Pub: " + publicKey, "Identity-Hash: " + profile.IdentityHash, "X-VFace-Hash: sha256:" + profile.IdentityHash, "X-VFace-Verify: " + VFaceVerificationURL} {
+		if !strings.Contains(headers, want) {
+			t.Fatalf("VFace headers missing %q: %s", want, headers)
+		}
+	}
+}