Move Spectests Into a Testing/ Folder (#9582)

testing/spectest/utils/utils.go

@@ -0,0 +1,46 @@
+package utils
+
+import (
+	"io/ioutil"
+	"os"
+	"path"
+	"testing"
+
+	"github.com/bazelbuild/rules_go/go/tools/bazel"
+	"github.com/ghodss/yaml"
+	jsoniter "github.com/json-iterator/go"
+	"github.com/prysmaticlabs/prysm/shared/testutil/require"
+)
+
+var json = jsoniter.Config{
+	EscapeHTML:             true,
+	SortMapKeys:            true,
+	ValidateJsonRawMessage: true,
+	TagKey:                 "spec-name",
+}.Froze()
+
+// UnmarshalYaml using a customized json encoder that supports "spec-name"
+// override tag.
+func UnmarshalYaml(y []byte, dest interface{}) error {
+	j, err := yaml.YAMLToJSON(y)
+	if err != nil {
+		return err
+	}
+	return json.Unmarshal(j, dest)
+}
+
+// TestFolders sets the proper config and returns the result of ReadDir
+// on the passed in eth2-spec-tests directory along with its path.
+func TestFolders(t testing.TB, config, forkOrPhase, folderPath string) ([]os.FileInfo, string) {
+	testsFolderPath := path.Join("tests", config, forkOrPhase, folderPath)
+	filepath, err := bazel.Runfile(testsFolderPath)
+	require.NoError(t, err)
+	testFolders, err := ioutil.ReadDir(filepath)
+	require.NoError(t, err)
+
+	if len(testFolders) == 0 {
+		t.Fatalf("No test folders found at %s", testsFolderPath)
+	}
+
+	return testFolders, testsFolderPath
+}