Added unit tests, documentation and function descriptions across the board. Increased cyclop complexity threshold to 15 which is a bit more sane than 10 and excluded _test.go files from linters.

.golangci.json

@@ -18,7 +18,23 @@
       "nolintlint",
       "unused",
       "whitespace"
-    ]
+    ],
+    "settings": {
+      "cyclop": {
+        "max-complexity": 15
+      }
+    },
+    "exclusions": {
+      "rules": [
+        {
+          "path": "_test\\.go",
+          "linters": [
+            "errcheck",
+            "cyclop"
+          ]
+        }
+      ]
+    }
   },
   "formatters": {
     "enable": [