diff --git a/.github/workflows/nodejs.yml b/.github/workflows/nodejs.yml
index e36389e..6db3151 100644
--- a/.github/workflows/nodejs.yml
+++ b/.github/workflows/nodejs.yml
@@ -23,7 +23,20 @@ jobs:
           cache: 'npm'
       - run: npm ci
       - run: npm run lint
-
+#  coverage:
+#    name: Coverage check
+#    runs-on: ubuntu-latest
+#    steps:
+#      - uses: actions/checkout@v2
+#      - name: Code coverage
+#        uses: actions/setup-node@v2
+#        with:
+#          node-version: 12.x
+#          cache: 'npm'
+#      - run: npm ci
+#      - run: npm run test:coverage
+#      - name: Code Coverage Report
+#        uses: romeovs/lcov-reporter-action@v0.2.11
   tests:
     name: Unit tests
     runs-on: ubuntu-latest
@@ -39,4 +52,4 @@ jobs:
           node-version: ${{ matrix.node-version }}
           cache: 'npm'
       - run: npm ci
-      - run: npm test
+      - run: npm run test:coverage
diff --git a/.nycrc b/.nycrc
new file mode 100644
index 0000000..93adc24
--- /dev/null
+++ b/.nycrc
@@ -0,0 +1,5 @@
+{
+    "all": true,
+    "extension": [".ts"],
+    "include": ["src/**"]
+}
diff --git a/package-lock.json b/package-lock.json
index 1ac2fbb..b3fa9bd 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4,6 +4,326 @@
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
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+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/@ampproject/remapping/-/remapping-2.2.0.tgz",
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+      "dev": true,
+      "requires": {
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+        "@jridgewell/trace-mapping": "^0.3.9"
+      }
+    },
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+      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.18.6.tgz",
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+      "dev": true,
+      "requires": {
+        "@babel/highlight": "^7.18.6"
+      }
+    },
+    "@babel/compat-data": {
+      "version": "7.19.3",
+      "resolved": "https://registry.npmjs.org/@babel/compat-data/-/compat-data-7.19.3.tgz",
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+      "dev": true
+    },
+    "@babel/core": {
+      "version": "7.19.3",
+      "resolved": "https://registry.npmjs.org/@babel/core/-/core-7.19.3.tgz",
+      "integrity": "sha512-WneDJxdsjEvyKtXKsaBGbDeiyOjR5vYq4HcShxnIbG0qixpoHjI3MqeZM9NDvsojNCEBItQE4juOo/bU6e72gQ==",
+      "dev": true,
+      "requires": {
+        "@ampproject/remapping": "^2.1.0",
+        "@babel/code-frame": "^7.18.6",
+        "@babel/generator": "^7.19.3",
+        "@babel/helper-compilation-targets": "^7.19.3",
+        "@babel/helper-module-transforms": "^7.19.0",
+        "@babel/helpers": "^7.19.0",
+        "@babel/parser": "^7.19.3",
+        "@babel/template": "^7.18.10",
+        "@babel/traverse": "^7.19.3",
+        "@babel/types": "^7.19.3",
+        "convert-source-map": "^1.7.0",
+        "debug": "^4.1.0",
+        "gensync": "^1.0.0-beta.2",
+        "json5": "^2.2.1",
+        "semver": "^6.3.0"
+      },
+      "dependencies": {
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+          "resolved": "https://registry.npmjs.org/semver/-/semver-6.3.0.tgz",
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+          "dev": true
+        }
+      }
+    },
+    "@babel/generator": {
+      "version": "7.19.3",
+      "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.19.3.tgz",
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+      "dev": true,
+      "requires": {
+        "@babel/types": "^7.19.3",
+        "@jridgewell/gen-mapping": "^0.3.2",
+        "jsesc": "^2.5.1"
+      },
+      "dependencies": {
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+          "resolved": "https://registry.npmjs.org/@jridgewell/gen-mapping/-/gen-mapping-0.3.2.tgz",
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+          "dev": true,
+          "requires": {
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+            "@jridgewell/sourcemap-codec": "^1.4.10",
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+      "resolved": "https://registry.npmjs.org/@babel/helper-compilation-targets/-/helper-compilation-targets-7.19.3.tgz",
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+      "dev": true,
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+        "@babel/helper-validator-option": "^7.18.6",
+        "browserslist": "^4.21.3",
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+          "dev": true
+        }
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+      "dev": true,
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+        "@babel/helper-split-export-declaration": "^7.18.6",
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+      "resolved": "https://registry.npmjs.org/@babel/types/-/types-7.19.3.tgz",
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+        "@babel/helper-validator-identifier": "^7.19.1",
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     "@cspotcode/source-map-support": {
       "version": "0.8.1",
       "resolved": "https://registry.npmjs.org/@cspotcode/source-map-support/-/source-map-support-0.8.1.tgz",
@@ -59,12 +379,117 @@
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       "dev": true
     },
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+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/@istanbuljs/load-nyc-config/-/load-nyc-config-1.1.0.tgz",
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+      "requires": {
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+        "find-up": "^4.1.0",
+        "get-package-type": "^0.1.0",
+        "js-yaml": "^3.13.1",
+        "resolve-from": "^5.0.0"
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@@ -1514,6 +2534,12 @@
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+        "is-windows": "^1.0.2",
+        "make-dir": "^3.0.0",
+        "rimraf": "^3.0.0",
+        "signal-exit": "^3.0.2",
+        "which": "^2.0.1"
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+    "sprintf-js": {
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+      "resolved": "https://registry.npmjs.org/sprintf-js/-/sprintf-js-1.0.3.tgz",
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@@ -1575,6 +2633,12 @@
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+    "strip-bom": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/strip-bom/-/strip-bom-4.0.0.tgz",
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@@ -1595,12 +2659,29 @@
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+    "test-exclude": {
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/test-exclude/-/test-exclude-6.0.0.tgz",
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+      "dev": true,
+      "requires": {
+        "@istanbuljs/schema": "^0.1.2",
+        "glob": "^7.1.4",
+        "minimatch": "^3.0.4"
+      }
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     },
+    "to-fast-properties": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/to-fast-properties/-/to-fast-properties-2.0.0.tgz",
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+    "typedarray-to-buffer": {
+      "version": "3.1.5",
+      "resolved": "https://registry.npmjs.org/typedarray-to-buffer/-/typedarray-to-buffer-3.1.5.tgz",
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+      "dev": true,
+      "requires": {
+        "is-typedarray": "^1.0.0"
+      }
+    },
     "typescript": {
       "version": "4.8.3",
       "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.8.3.tgz",
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       "dev": true
     },
+    "update-browserslist-db": {
+      "version": "1.0.9",
+      "resolved": "https://registry.npmjs.org/update-browserslist-db/-/update-browserslist-db-1.0.9.tgz",
+      "integrity": "sha512-/xsqn21EGVdXI3EXSum1Yckj3ZVZugqyOZQ/CxYPBD/R+ko9NSUScf8tFF4dOKY+2pvSSJA/S+5B8s4Zr4kyvg==",
+      "dev": true,
+      "requires": {
+        "escalade": "^3.1.1",
+        "picocolors": "^1.0.0"
+      }
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     "uri-js": {
       "version": "4.4.1",
       "resolved": "https://registry.npmjs.org/uri-js/-/uri-js-4.4.1.tgz",
@@ -1690,6 +2790,12 @@
         "punycode": "^2.1.0"
       }
     },
+    "uuid": {
+      "version": "8.3.2",
+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-8.3.2.tgz",
+      "integrity": "sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg==",
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       "resolved": "https://registry.npmjs.org/v8-compile-cache-lib/-/v8-compile-cache-lib-3.0.1.tgz",
@@ -1705,6 +2811,12 @@
         "isexe": "^2.0.0"
       }
     },
+    "which-module": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/which-module/-/which-module-2.0.0.tgz",
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@@ -1734,6 +2846,18 @@
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       "dev": true
     },
+    "write-file-atomic": {
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/write-file-atomic/-/write-file-atomic-3.0.3.tgz",
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+      "dev": true,
+      "requires": {
+        "imurmurhash": "^0.1.4",
+        "is-typedarray": "^1.0.0",
+        "signal-exit": "^3.0.2",
+        "typedarray-to-buffer": "^3.1.5"
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diff --git a/package.json b/package.json
index 36d2312..be30df2 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,8 @@
     "lint:fix": "npm run lint --silent -- --fix",
     "prepare": "npm run build",
     "preversion": "npm run lint",
-    "test": "mocha -r ts-node/register -r test/bootstrap.ts test/**/*.ts"
+    "test": "mocha -r ts-node/register -r test/bootstrap.ts test/**/*.ts",
+    "test:coverage": "nyc --reporter=lcov --reporter=text-summary npm run test"
   },
   "repository": {
     "type": "git",
@@ -43,6 +44,7 @@
     "eslint": "^8.24.0",
     "mocha": "^10.0.0",
     "mockdate": "^3.0.5",
+    "nyc": "^15.1.0",
     "sinon": "^14.0.0",
     "sinon-chai": "^3.7.0",
     "ts-node": "^10.9.1",