Cover fork.go

Author: jshufro

pkg/dirksigner/fork_test.go

@@ -0,0 +1,67 @@
+package dirksigner
+
+import (
+	"bytes"
+	"strings"
+	"testing"
+
+	"github.com/jshufro/remote-signer-dirk-interop/internal/api"
+	"github.com/jshufro/remote-signer-dirk-interop/internal/domains"
+	"github.com/neilotoole/slogt"
+)
+
+func TestCalculateDomain(t *testing.T) {
+	dirk := DirkSigner{
+		log: slogt.New(t),
+	}
+	domain, err := dirk.calculateDomain(domains.DomainAggregateAndProof, "0x0000000000000000000000000000000000000000000000000000000000000000", &api.Fork{
+		CurrentVersion:  "0x00000000",
+		PreviousVersion: "0x00000000",
+	})
+	if err != nil {
+		t.Fatalf("failed to calculate domain: %v", err)
+	}
+	expectedDomain := "06000000f5a5fd42d16a20302798ef6ed309979b43003d2320d9f0e8ea9831a9"
+	expectedDomainBytes, err := decodeHex(expectedDomain)
+	if err != nil {
+		t.Fatalf("failed to decode expected domain: %v", err)
+	}
+	if !bytes.Equal(domain, expectedDomainBytes) {
+		t.Fatalf("domain is not correct: %x", domain)
+	}
+
+	// Invalid genesis validator root should produce an error
+	_, err = dirk.calculateDomain(domains.DomainAggregateAndProof, "0xgg", &api.Fork{
+		CurrentVersion:  "0x00000000",
+		PreviousVersion: "0x00000000",
+	})
+	if err == nil {
+		t.Fatalf("expected error, got nil")
+	}
+	_, err = dirk.calculateDomain(domains.DomainAggregateAndProof, "0x12", &api.Fork{
+		CurrentVersion:  "0x00000000",
+		PreviousVersion: "0x00000000",
+	})
+	if err == nil {
+		t.Fatalf("expected error, got nil")
+	}
+
+	// Invalid current version should produce an error
+	_, err = dirk.calculateDomain(domains.DomainAggregateAndProof, "0x0000000000000000000000000000000000000000000000000000000000000000", &api.Fork{
+		CurrentVersion:  "0x1234567890",
+		PreviousVersion: "0x00000000",
+	})
+	if err == nil {
+		t.Fatalf("expected error, got nil")
+	}
+	if !strings.Contains(err.Error(), "fork version is not 4 bytes") {
+		t.Fatalf("error is not correct: %v", err)
+	}
+	_, err = dirk.calculateDomain(domains.DomainAggregateAndProof, "0x0000000000000000000000000000000000000000000000000000000000000000", &api.Fork{
+		CurrentVersion:  "0xgg",
+		PreviousVersion: "0x00000000",
+	})
+	if err == nil {
+		t.Fatalf("expected error, got nil")
+	}
+}