Add more unit tests to increase test coverage

transport/http/auth_schemes_test.go

@@ -0,0 +1,22 @@
+package http
+
+import (
+	"testing"
+	"github.com/aws/smithy-go/auth"
+)
+
+func TestAnonymousScheme(t *testing.T) {
+	expectedID := auth.SchemeIDAnonymous
+	scheme := NewAnonymousScheme()
+	actualID := scheme.SchemeID()
+	if expectedID != actualID {
+		t.Errorf("AnonymousScheme constructor is not producing the correct scheme ID")
+	}
+
+	var expectedSigner Signer = &nopSigner{}
+	actualSigner := scheme.Signer()
+	if expectedSigner != actualSigner {
+		t.Errorf("AnonymousScheme constructor is not producing the correct signer")
+	}
+}
+

transport/http/identity_test.go

@@ -0,0 +1,18 @@
+package http
+
+import (
+	"context"
+	"testing"
+	smithy "github.com/aws/smithy-go"
+	"github.com/aws/smithy-go/auth"
+)
+
+func TestIdentity(t *testing.T) {
+	var expected auth.Identity = &auth.AnonymousIdentity{}
+
+	resolver := auth.AnonymousIdentityResolver{}
+	actual, _ := resolver.GetIdentity(context.TODO(), smithy.Properties{})
+	if expected != actual {
+		t.Errorf("Anonymous identity resolver does not produce correct identity")
+	}
+}