diff --git a/.nycrc b/.nycrc
new file mode 100644
index 0000000..8034245
--- /dev/null
+++ b/.nycrc
@@ -0,0 +1,25 @@
+{
+  "cache": false,
+  "check-coverage": false,
+  "extension": [
+    ".ts"
+  ],
+  "include": [
+    "dist/**/*.js",
+    "src/**/*.ts"
+  ],
+  "exclude": [
+    "coverage/**",
+    "node_modules/**",
+    "**/*.d.ts",
+    "**/*.spec.ts"
+  ],
+  "sourceMap": true,
+  "reporter": [
+    "html",
+    "text",
+    "text-summary"
+  ],
+  "all": true,
+  "instrument": true
+}
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index 9e9a10e..c7e59d0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,9 +1,339 @@
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@@ -314,12 +654,27 @@
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@@ -800,6 +1155,18 @@
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+            "yargs-parser": "^18.1.2"
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+              "resolved": "https://registry.npmjs.org/decamelize/-/decamelize-3.2.0.tgz",
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+              "dev": true,
+              "requires": {
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+        "yargs-parser": {
+          "version": "18.1.3",
+          "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-18.1.3.tgz",
+          "integrity": "sha512-o50j0JeToy/4K6OZcaQmW6lyXXKhq7csREXcDwk2omFPJEwUNOVtJKvmDr9EI1fAJZUyZcRF7kxGBWmRXudrCQ==",
+          "dev": true,
+          "requires": {
+            "camelcase": "^5.0.0",
+            "decamelize": "^1.2.0"
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       "resolved": "https://registry.npmjs.org/object-assign/-/object-assign-4.1.1.tgz",
@@ -3254,12 +4064,33 @@
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+      "resolved": "https://registry.npmjs.org/p-map/-/p-map-3.0.0.tgz",
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+      "dev": true,
+      "requires": {
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     "p-try": {
       "version": "2.2.0",
       "resolved": "https://registry.npmjs.org/p-try/-/p-try-2.2.0.tgz",
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       "dev": true
     },
+    "package-hash": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/package-hash/-/package-hash-4.0.0.tgz",
+      "integrity": "sha512-whdkPIooSu/bASggZ96BWVvZTRMOFxnyUG5PnTSGKoJE2gd5mbVNmR2Nj20QFzxYYgAXpoqC+AiXzl+UMRh7zQ==",
+      "dev": true,
+      "requires": {
+        "graceful-fs": "^4.1.15",
+        "hasha": "^5.0.0",
+        "lodash.flattendeep": "^4.4.0",
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@@ -3354,6 +4185,12 @@
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+      "resolved": "https://registry.npmjs.org/path-parse/-/path-parse-1.0.6.tgz",
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+      "dev": true
+    },
     "pathval": {
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@@ -3454,6 +4291,15 @@
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       "dev": true
     },
+    "process-on-spawn": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/process-on-spawn/-/process-on-spawn-1.0.0.tgz",
+      "integrity": "sha512-1WsPDsUSMmZH5LeMLegqkPDrsGgsWwk1Exipy2hvB0o/F0ASzbpIctSCcZIK1ykJvtTJULEH+20WOFjMvGnCTg==",
+      "dev": true,
+      "requires": {
+        "fromentries": "^1.2.0"
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     "promise-inflight": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/promise-inflight/-/promise-inflight-1.0.1.tgz",
@@ -3630,6 +4476,12 @@
         "picomatch": "^2.2.1"
       }
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+    "regenerator-runtime": {
+      "version": "0.13.5",
+      "resolved": "https://registry.npmjs.org/regenerator-runtime/-/regenerator-runtime-0.13.5.tgz",
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+      "dev": true
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@@ -3658,6 +4510,15 @@
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+    "release-zalgo": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/release-zalgo/-/release-zalgo-1.0.0.tgz",
+      "integrity": "sha1-CXALflB0Mpc5Mw5TXFqQ+2eFFzA=",
+      "dev": true,
+      "requires": {
+        "es6-error": "^4.0.1"
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     "remove-trailing-separator": {
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       "resolved": "https://registry.npmjs.org/remove-trailing-separator/-/remove-trailing-separator-1.1.0.tgz",
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       "dev": true
     },
+    "resolve": {
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+      "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.17.0.tgz",
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+      "dev": true,
+      "requires": {
+        "path-parse": "^1.0.6"
+      }
+    },
     "resolve-cwd": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/resolve-cwd/-/resolve-cwd-2.0.0.tgz",
@@ -4072,6 +4942,20 @@
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       "dev": true
     },
+    "spawn-wrap": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/spawn-wrap/-/spawn-wrap-2.0.0.tgz",
+      "integrity": "sha512-EeajNjfN9zMnULLwhZZQU3GWBoFNkbngTUPfaawT4RkMiviTxcX0qfhVbGey39mfctfDHkWtuecgQ8NJcyQWHg==",
+      "dev": true,
+      "requires": {
+        "foreground-child": "^2.0.0",
+        "is-windows": "^1.0.2",
+        "make-dir": "^3.0.0",
+        "rimraf": "^3.0.0",
+        "signal-exit": "^3.0.2",
+        "which": "^2.0.1"
+      }
+    },
     "split-string": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/split-string/-/split-string-3.1.0.tgz",
@@ -4234,6 +5118,12 @@
         "ansi-regex": "^4.1.0"
       }
     },
+    "strip-bom": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/strip-bom/-/strip-bom-4.0.0.tgz",
+      "integrity": "sha512-3xurFv5tEgii33Zi8Jtp55wEIILR9eh34FAW00PZf+JnSsTmV/ioewSgQl97JHvgjoRGwPShsWm+IdrxB35d0w==",
+      "dev": true
+    },
     "strip-json-comments": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-2.0.1.tgz",
@@ -4300,6 +5190,17 @@
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       }
     },
+    "test-exclude": {
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/test-exclude/-/test-exclude-6.0.0.tgz",
+      "integrity": "sha512-cAGWPIyOHU6zlmg88jwm7VRyXnMN7iV68OGAbYDk/Mh/xC/pzVPlQtY6ngoIH/5/tciuhGfvESU8GrHrcxD56w==",
+      "dev": true,
+      "requires": {
+        "@istanbuljs/schema": "^0.1.2",
+        "glob": "^7.1.4",
+        "minimatch": "^3.0.4"
+      }
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     "through2": {
       "version": "2.0.5",
       "resolved": "https://registry.npmjs.org/through2/-/through2-2.0.5.tgz",
@@ -4325,6 +5226,12 @@
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       "dev": true
     },
+    "to-fast-properties": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/to-fast-properties/-/to-fast-properties-2.0.0.tgz",
+      "integrity": "sha1-3F5pjL0HkmW8c+A3doGk5Og/YW4=",
+      "dev": true
+    },
     "to-object-path": {
       "version": "0.3.0",
       "resolved": "https://registry.npmjs.org/to-object-path/-/to-object-path-0.3.0.tgz",
@@ -4655,6 +5562,12 @@
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       "dev": true
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+    "uuid": {
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+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.4.0.tgz",
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@@ -5150,6 +6063,15 @@
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       "dev": true
     },
+    "xregexp": {
+      "version": "4.3.0",
+      "resolved": "https://registry.npmjs.org/xregexp/-/xregexp-4.3.0.tgz",
+      "integrity": "sha512-7jXDIFXh5yJ/orPn4SXjuVrWWoi4Cr8jfV1eHv9CixKSbU+jY4mxfrBwAuDvupPNKpMUY+FeIqsVw/JLT9+B8g==",
+      "dev": true,
+      "requires": {
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       "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
diff --git a/package.json b/package.json
index ee85b42..e3a8ca7 100644
--- a/package.json
+++ b/package.json
@@ -10,6 +10,7 @@
     "chai": "^4.2.0",
     "mocha": "^8.0.1",
     "nodemon": "^2.0.4",
+    "nyc": "^15.1.0",
     "rimraf": "^3.0.2",
     "ts-node": "^8.10.2",
     "typescript": "^3.9.6",
@@ -30,7 +31,8 @@
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     "start:js": "nodemon ./dist/index.js",
     "test": "mocha --require ts-node/register --extensions ts,tsx --watch-files src 'tests/**/*.{ts,tsx}'",
-    "test:tdd": "npm test -- --watch"
+    "test:tdd": "npm test -- --watch",
+    "test:coverage": "nyc npm run test"
   },
   "repository": {
     "type": "git",