add a GHA workflow to run the tests

.github/workflows/gotest.yml

@@ -0,0 +1,27 @@
+on: [push, pull_request]
+name: Go Test
+
+jobs:
+  unit:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ "ubuntu" ]
+        go: [ "1.23.x", "1.24.x"]
+    env:
+      COVERAGES: ""
+    runs-on: ${{ matrix.os }}-latest
+    name: ${{ matrix.os}} (go ${{ matrix.go }})
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-go@v5
+        with:
+          go-version: ${{ matrix.go }}
+      - name: Go information
+        run: |
+          go version
+          go env
+      - name: Run tests
+        run: go test -v ./...
+      - name: Check formatted
+        run: gofmt -l .

registry_test.go

@@ -61,10 +61,6 @@ func (v testVarsig) Discriminator() varsig.Discriminator {
 	return v.disc
 }
 
-func (v testVarsig) Hash() varsig.Hash {
-	return varsig.HashUnspecified
-}
-
 func (v testVarsig) PayloadEncoding() varsig.PayloadEncoding {
 	return v.payEnc
 }

varsig.go

@@ -32,9 +32,6 @@ type Varsig interface {
 	// Discriminator returns the algorithm used to produce the corresponding signature.
 	Discriminator() Discriminator
 
-	// Hash returns the hash used on the data before signature.
-	Hash() Hash
-
 	// PayloadEncoding returns the codec that was used to encode the signed data.
 	PayloadEncoding() PayloadEncoding