use local lexicon json for unit testing

data/dbs_lexicon.json

@@ -0,0 +1,44 @@
+[
+  {
+    "name": "file",
+    "patterns": [
+      "^/([A-Za-z0-9._\\-/])+/([A-Za-z0-9._\\-])+(.root|.png|.tiff|.tif|.jpeg|jpg|.dat|.txt|.dlog|.mcs|.json|.nx(.xz){0,1})$"
+    ],
+    "length": 500
+  },
+  {
+    "name": "did",
+    "patterns": [
+      "^/[a-z]+=[a-zA-Z0-9\\-\\._\\,]+(/[a-z]+=[a-zA-Z0-9\\-\\._\\,]+)+",
+      ".*unittest.*"
+    ],
+    "length": 301
+  },
+  {
+    "name": "modify_by",
+    "patterns": [
+      "^[a-zA-Z0-9/%*][a-zA-Z0-9/\\.\\-_%*/#]*$",
+      "^/[a-zA-Z][a-zA-Z0-9/\\=\\s()\\']*\\=[a-zA-Z0-9/\\=\\.\\-_/#:\\s\\']*$",
+      "^[a-zA-Z0-9/][a-zA-Z0-9/\\.\\-_\\']*$",
+      "^[a-zA-Z0-9/][a-zA-Z0-9/\\.\\-_]*@[a-zA-Z0-9/][a-zA-Z0-9/\\.\\-_]*$"
+    ],
+    "length": -1
+  },
+  {
+    "name": "create_by",
+    "patterns": [
+      "^[a-zA-Z0-9/%*][a-zA-Z0-9/\\.\\-_%*/#]*$",
+      "^/[a-zA-Z][a-zA-Z0-9/\\=\\s()\\']*\\=[a-zA-Z0-9/\\=\\.\\-_/#:\\s\\']*$",
+      "^[a-zA-Z0-9/][a-zA-Z0-9/\\.\\-_\\']*$",
+      "^[a-zA-Z0-9/][a-zA-Z0-9/\\.\\-_]*@[a-zA-Z0-9/][a-zA-Z0-9/\\.\\-_]*$"
+    ],
+    "length": -1
+  },
+  {
+    "name": "dataset_id",
+    "patterns": [
+      "\\d+"
+    ],
+    "length": -1
+  }
+]

main_test.go

@@ -30,7 +30,13 @@ func initDBS(dryRun bool, dburi string) *sql.DB {
 		log.Fatal("unable to get current working dir")
 	}
 	// load Lexicon patterns
-	lexPatterns, err := lexicon.LoadPatterns(srvConfig.Config.DataBookkeeping.LexiconFile)
+	var lexPatterns map[string]lexicon.LexiconPattern
+	if srvConfig.Config.DataBookkeeping.LexiconFile != "" {
+		lexPatterns, err = lexicon.LoadPatterns(srvConfig.Config.DataBookkeeping.LexiconFile)
+	} else {
+		// use for unit test in github
+		lexPatterns, err = lexicon.LoadPatterns("data/dbs_lexicon.json")
+	}
 	if err != nil {
 		log.Fatal(err)
 	}