Add test.

Signed-off-by: Spencer Schrock <sschrock@google.com>

clients/githubrepo/checkruns_test.go

@@ -0,0 +1,30 @@
+// Copyright 2023 OpenSSF Scorecard Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package githubrepo
+
+import (
+	"context"
+	"testing"
+
+	sce "github.com/ossf/scorecard/v4/errors"
+)
+
+func Test_init_clearsErr(t *testing.T) {
+	handler := &checkrunsHandler{errSetup: sce.ErrScorecardInternal}
+	handler.init(context.Background(), nil, 0)
+	if handler.errSetup != nil {
+		t.Errorf("expected nil error, got %v", handler.errSetup)
+	}
+}