diff --git a/.gitignore b/.gitignore
index 1f2728e..fb87415 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@
 *.swp
 .lock-wscript
 node_modules/
+coverage/
\ No newline at end of file
diff --git a/.npmignore b/.npmignore
index b2784f0..627cc2f 100644
--- a/.npmignore
+++ b/.npmignore
@@ -1,2 +1,4 @@
-Cakefile
-src/
+.eslintrc.js
+.travis.yml
+coverage/
+test/
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index 88f6cf8..16c63ec 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -24,6 +24,36 @@
                 "js-tokens": "^4.0.0"
             }
         },
+        "@bcoe/v8-coverage": {
+            "version": "0.2.3",
+            "resolved": "https://registry.npmjs.org/@bcoe/v8-coverage/-/v8-coverage-0.2.3.tgz",
+            "integrity": "sha512-0hYQ8SB4Db5zvZB4axdMHGwEaQjkZzFjQiN9LVYvIFB2nSUHW9tYpxWriPrWDASIxiaXax83REcLxuSdnGPZtw==",
+            "dev": true
+        },
+        "@istanbuljs/schema": {
+            "version": "0.1.2",
+            "resolved": "https://registry.npmjs.org/@istanbuljs/schema/-/schema-0.1.2.tgz",
+            "integrity": "sha512-tsAQNx32a8CoFhjhijUIhI4kccIAgmGhy8LZMZgGfmXcpMbPRUqn5LWmgRttILi6yeGmBJd2xsPkFMs0PzgPCw==",
+            "dev": true
+        },
+        "@types/color-name": {
+            "version": "1.1.1",
+            "resolved": "https://registry.npmjs.org/@types/color-name/-/color-name-1.1.1.tgz",
+            "integrity": "sha512-rr+OQyAjxze7GgWrSaJwydHStIhHq2lvY3BOC2Mj7KnzI7XK0Uw1TOOdI9lDoajEbSWLiYgoo4f1R51erQfhPQ==",
+            "dev": true
+        },
+        "@types/is-windows": {
+            "version": "0.2.0",
+            "resolved": "https://registry.npmjs.org/@types/is-windows/-/is-windows-0.2.0.tgz",
+            "integrity": "sha1-byTuSHMdMRaOpRBhDW3RXl/Jxv8=",
+            "dev": true
+        },
+        "@types/istanbul-lib-coverage": {
+            "version": "2.0.1",
+            "resolved": "https://registry.npmjs.org/@types/istanbul-lib-coverage/-/istanbul-lib-coverage-2.0.1.tgz",
+            "integrity": "sha512-hRJD2ahnnpLgsj6KWMYSrmXkM3rm2Dl1qkx6IOFD5FnuNPXJIG5L0dhgKXCYTRMGzU4n0wImQ/xfmRc4POUFlg==",
+            "dev": true
+        },
         "acorn": {
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             "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.1.0.tgz",
@@ -140,6 +170,186 @@
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             "dev": true
         },
+        "c8": {
+            "version": "7.0.0",
+            "resolved": "https://registry.npmjs.org/c8/-/c8-7.0.0.tgz",
+            "integrity": "sha512-4X920F1QhyHqZKHsmwUuUVA3GrJ5vwqKd1iqnMB/G+KiydNF3TtM3FqNFMzHI0t+pa1xMa6TZwtt67bTlYzVPQ==",
+            "dev": true,
+            "requires": {
+                "@bcoe/v8-coverage": "^0.2.3",
+                "@istanbuljs/schema": "^0.1.2",
+                "find-up": "^4.0.0",
+                "foreground-child": "^2.0.0",
+                "furi": "^1.3.0",
+                "istanbul-lib-coverage": "^3.0.0",
+                "istanbul-lib-report": "^3.0.0",
+                "istanbul-reports": "^3.0.0",
+                "rimraf": "^3.0.0",
+                "test-exclude": "^6.0.0",
+                "v8-to-istanbul": "^4.0.1",
+                "yargs": "^15.0.0",
+                "yargs-parser": "^16.0.0"
+            },
+            "dependencies": {
+                "ansi-regex": {
+                    "version": "5.0.0",
+                    "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.0.tgz",
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+                    "dev": true
+                },
+                "ansi-styles": {
+                    "version": "4.2.1",
+                    "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-4.2.1.tgz",
+                    "integrity": "sha512-9VGjrMsG1vePxcSweQsN20KY/c4zN0h9fLjqAbwbPfahM3t+NL+M9HC8xeXG2I8pX5NoamTGNuomEUFI7fcUjA==",
+                    "dev": true,
+                    "requires": {
+                        "@types/color-name": "^1.1.1",
+                        "color-convert": "^2.0.1"
+                    }
+                },
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+                    "resolved": "https://registry.npmjs.org/cliui/-/cliui-6.0.0.tgz",
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+                    "version": "2.0.1",
+                    "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
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+                        "path-exists": "^4.0.0"
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+                        "string-width": "^4.1.0",
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+                    "resolved": "https://registry.npmjs.org/yargs/-/yargs-15.1.0.tgz",
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+                    "dev": true,
+                    "requires": {
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+                        "decamelize": "^1.2.0",
+                        "find-up": "^4.1.0",
+                        "get-caller-file": "^2.0.1",
+                        "require-directory": "^2.1.1",
+                        "require-main-filename": "^2.0.0",
+                        "set-blocking": "^2.0.0",
+                        "string-width": "^4.2.0",
+                        "which-module": "^2.0.0",
+                        "y18n": "^4.0.0",
+                        "yargs-parser": "^16.1.0"
+                    }
+                },
+                "yargs-parser": {
+                    "version": "16.1.0",
+                    "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-16.1.0.tgz",
+                    "integrity": "sha512-H/V41UNZQPkUMIT5h5hiwg4QKIY1RPvoBV4XcjUbRM8Bk2oKqqyZ0DIEbTFZB0XjbtSPG8SAa/0DxCQmiRgzKg==",
+                    "dev": true,
+                    "requires": {
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+                        "decamelize": "^1.2.0"
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         "callsites": {
             "version": "3.1.0",
             "resolved": "https://registry.npmjs.org/callsites/-/callsites-3.1.0.tgz",
@@ -271,6 +481,15 @@
             "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=",
             "dev": true
         },
+        "convert-source-map": {
+            "version": "1.7.0",
+            "resolved": "https://registry.npmjs.org/convert-source-map/-/convert-source-map-1.7.0.tgz",
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+            "dev": true,
+            "requires": {
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+            }
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         "cross-spawn": {
             "version": "6.0.5",
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@@ -617,6 +836,59 @@
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             "dev": true
         },
+        "foreground-child": {
+            "version": "2.0.0",
+            "resolved": "https://registry.npmjs.org/foreground-child/-/foreground-child-2.0.0.tgz",
+            "integrity": "sha512-dCIq9FpEcyQyXKCkyzmlPTFNgrCzPudOe+mhvJU5zAtlBnGVy2yKxtfsxK2tQBThwq225jcvBjpw1Gr40uzZCA==",
+            "dev": true,
+            "requires": {
+                "cross-spawn": "^7.0.0",
+                "signal-exit": "^3.0.2"
+            },
+            "dependencies": {
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+                    "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-7.0.1.tgz",
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+                    "dev": true,
+                    "requires": {
+                        "path-key": "^3.1.0",
+                        "shebang-command": "^2.0.0",
+                        "which": "^2.0.1"
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+                    "resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-2.0.0.tgz",
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+                    "dev": true,
+                    "requires": {
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+                    }
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+                "shebang-regex": {
+                    "version": "3.0.0",
+                    "resolved": "https://registry.npmjs.org/shebang-regex/-/shebang-regex-3.0.0.tgz",
+                    "integrity": "sha512-7++dFhtcx3353uBaq8DDR4NuxBetBzC7ZQOhmTQInHEd6bSrXdiEyzCvG07Z44UYdLShWUyXt5M/yhz8ekcb1A==",
+                    "dev": true
+                },
+                "which": {
+                    "version": "2.0.2",
+                    "resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz",
+                    "integrity": "sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA==",
+                    "dev": true,
+                    "requires": {
+                        "isexe": "^2.0.0"
+                    }
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+        },
         "fs.realpath": {
             "version": "1.0.0",
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@@ -642,6 +914,16 @@
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             "dev": true
         },
+        "furi": {
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+            "resolved": "https://registry.npmjs.org/furi/-/furi-1.3.0.tgz",
+            "integrity": "sha512-TYoXEeRLKHXNWcCBP0VH1psPktQ9G8Y0GfZwMXCvwVbhbfNx7JItKWhB5mMBYufNjqxEHq+Ivd1nLtr5vQyVoQ==",
+            "dev": true,
+            "requires": {
+                "@types/is-windows": "^0.2.0",
+                "is-windows": "^1.0.2"
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+        },
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@@ -713,6 +995,12 @@
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+        "html-escaper": {
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+        },
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@@ -918,12 +1206,62 @@
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             "integrity": "sha1-6PvzdNxVb/iUehDcsFctYz8s+hA=",
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+            }
+        },
         "js-tokens": {
             "version": "4.0.0",
             "resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-4.0.0.tgz",
@@ -987,6 +1325,23 @@
                 "chalk": "^2.0.1"
             }
         },
+        "make-dir": {
+            "version": "3.0.0",
+            "resolved": "https://registry.npmjs.org/make-dir/-/make-dir-3.0.0.tgz",
+            "integrity": "sha512-grNJDhb8b1Jm1qeqW5R/O63wUo4UXo2v2HMic6YT9i/HBlF93S8jkMgH7yugvY9ABDShH4VZMn8I+U8+fCNegw==",
+            "dev": true,
+            "requires": {
+                "semver": "^6.0.0"
+            },
+            "dependencies": {
+                "semver": {
+                    "version": "6.3.0",
+                    "resolved": "https://registry.npmjs.org/semver/-/semver-6.3.0.tgz",
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+                    "dev": true
+                }
+            }
+        },
         "mimic-fn": {
             "version": "2.1.0",
             "resolved": "https://registry.npmjs.org/mimic-fn/-/mimic-fn-2.1.0.tgz",
@@ -1306,6 +1661,12 @@
                 "tslib": "^1.9.0"
             }
         },
+        "safe-buffer": {
+            "version": "5.1.2",
+            "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
+            "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==",
+            "dev": true
+        },
         "safer-buffer": {
             "version": "2.1.2",
             "resolved": "https://registry.npmjs.org/safer-buffer/-/safer-buffer-2.1.2.tgz",
@@ -1410,6 +1771,12 @@
                 "is-fullwidth-code-point": "^2.0.0"
             }
         },
+        "source-map": {
+            "version": "0.7.3",
+            "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.7.3.tgz",
+            "integrity": "sha512-CkCj6giN3S+n9qrYiBTX5gystlENnRW5jZeNLHpe6aue+SrHcG5VYwujhW9s4dY31mEGsxBDrHR6oI69fTXsaQ==",
+            "dev": true
+        },
         "sprintf-js": {
             "version": "1.0.3",
             "resolved": "https://registry.npmjs.org/sprintf-js/-/sprintf-js-1.0.3.tgz",
@@ -1510,6 +1877,33 @@
                 }
             }
         },
+        "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"
+            },
+            "dependencies": {
+                "glob": {
+                    "version": "7.1.6",
+                    "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.6.tgz",
+                    "integrity": "sha512-LwaxwyZ72Lk7vZINtNNrywX0ZuLyStrdDtabefZKAY5ZGJhVtgdznluResxNmPitE0SAO+O26sWTHeKSI2wMBA==",
+                    "dev": true,
+                    "requires": {
+                        "fs.realpath": "^1.0.0",
+                        "inflight": "^1.0.4",
+                        "inherits": "2",
+                        "minimatch": "^3.0.4",
+                        "once": "^1.3.0",
+                        "path-is-absolute": "^1.0.0"
+                    }
+                }
+            }
+        },
         "text-table": {
             "version": "0.2.0",
             "resolved": "https://registry.npmjs.org/text-table/-/text-table-0.2.0.tgz",
@@ -1581,6 +1975,17 @@
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             "dev": true
         },
+        "v8-to-istanbul": {
+            "version": "4.0.1",
+            "resolved": "https://registry.npmjs.org/v8-to-istanbul/-/v8-to-istanbul-4.0.1.tgz",
+            "integrity": "sha512-x0yZvZAkjJwdD3fPiJzYP37aod0ati4LlmD2RmpKjqewjKAov/u/ytZ8ViIZb07cN4cePKzl9ijiUi7C1LQ8hQ==",
+            "dev": true,
+            "requires": {
+                "@types/istanbul-lib-coverage": "^2.0.1",
+                "convert-source-map": "^1.6.0",
+                "source-map": "^0.7.3"
+            }
+        },
         "which": {
             "version": "1.3.1",
             "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
diff --git a/package.json b/package.json
index 6ca3f85..8c0f09f 100644
--- a/package.json
+++ b/package.json
@@ -19,12 +19,13 @@
         "url"
     ],
     "scripts": {
-        "test": "eslint . && mocha ./test/*.test.* --require should --reporter spec --colors"
+        "test": "eslint . && c8 mocha ./test/*.test.* --require should --reporter spec --colors"
     },
     "dependencies": {
         "unicode": ">= 0.3.1"
     },
     "devDependencies": {
+        "c8": "^7.0.0",
         "eslint": "^6.8.0",
         "mocha": "^7.0.0",
         "should": "~13.2.3"