diff --git a/package-lock.json b/package-lock.json
index ac00dea..22d01fe 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "server-port",
-  "version": "0.0.1",
+  "version": "0.0.13",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -24,6 +24,97 @@
         "js-tokens": "^4.0.0"
       }
     },
+    "@jest/types": {
+      "version": "24.9.0",
+      "resolved": "https://registry.npmjs.org/@jest/types/-/types-24.9.0.tgz",
+      "integrity": "sha512-XKK7ze1apu5JWQ5eZjHITP66AX+QsLlbaJRBGYr8pNzwcAE2JVkwnf0yqjHTsDRcjR0mujy/NmZMXw5kl+kGBw==",
+      "dev": true,
+      "requires": {
+        "@types/istanbul-lib-coverage": "^2.0.0",
+        "@types/istanbul-reports": "^1.1.1",
+        "@types/yargs": "^13.0.0"
+      }
+    },
+    "@types/cookiejar": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/@types/cookiejar/-/cookiejar-2.1.2.tgz",
+      "integrity": "sha512-t73xJJrvdTjXrn4jLS9VSGRbz0nUY3cl2DMGDU48lKl+HR9dbbjW2A9r3g40VA++mQpy6uuHg33gy7du2BKpog==",
+      "dev": true
+    },
+    "@types/istanbul-lib-coverage": {
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/@types/istanbul-lib-coverage/-/istanbul-lib-coverage-2.0.3.tgz",
+      "integrity": "sha512-sz7iLqvVUg1gIedBOvlkxPlc8/uVzyS5OwGz1cKjXzkl3FpL3al0crU8YGU1WoHkxn0Wxbw5tyi6hvzJKNzFsw==",
+      "dev": true
+    },
+    "@types/istanbul-lib-report": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/@types/istanbul-lib-report/-/istanbul-lib-report-3.0.0.tgz",
+      "integrity": "sha512-plGgXAPfVKFoYfa9NpYDAkseG+g6Jr294RqeqcqDixSbU34MZVJRi/P+7Y8GDpzkEwLaGZZOpKIEmeVZNtKsrg==",
+      "dev": true,
+      "requires": {
+        "@types/istanbul-lib-coverage": "*"
+      }
+    },
+    "@types/istanbul-reports": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/@types/istanbul-reports/-/istanbul-reports-1.1.2.tgz",
+      "integrity": "sha512-P/W9yOX/3oPZSpaYOCQzGqgCQRXn0FFO/V8bWrCQs+wLmvVVxk6CRBXALEvNs9OHIatlnlFokfhuDo2ug01ciw==",
+      "dev": true,
+      "requires": {
+        "@types/istanbul-lib-coverage": "*",
+        "@types/istanbul-lib-report": "*"
+      }
+    },
+    "@types/jest": {
+      "version": "24.9.1",
+      "resolved": "https://registry.npmjs.org/@types/jest/-/jest-24.9.1.tgz",
+      "integrity": "sha512-Fb38HkXSVA4L8fGKEZ6le5bB8r6MRWlOCZbVuWZcmOMSCd2wCYOwN1ibj8daIoV9naq7aaOZjrLCoCMptKU/4Q==",
+      "dev": true,
+      "requires": {
+        "jest-diff": "^24.3.0"
+      }
+    },
+    "@types/node": {
+      "version": "15.0.2",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-15.0.2.tgz",
+      "integrity": "sha512-p68+a+KoxpoB47015IeYZYRrdqMUcpbK8re/zpFB8Ld46LHC1lPEbp3EXgkEhAYEcPvjJF6ZO+869SQ0aH1dcA==",
+      "dev": true
+    },
+    "@types/superagent": {
+      "version": "4.1.11",
+      "resolved": "https://registry.npmjs.org/@types/superagent/-/superagent-4.1.11.tgz",
+      "integrity": "sha512-cZkWBXZI+jESnUTp8RDGBmk1Zn2MkScP4V5bjD7DyqB7L0WNWpblh4KX5K/6aTqxFZMhfo1bhi2cwoAEDVBBJw==",
+      "dev": true,
+      "requires": {
+        "@types/cookiejar": "*",
+        "@types/node": "*"
+      }
+    },
+    "@types/supertest": {
+      "version": "2.0.11",
+      "resolved": "https://registry.npmjs.org/@types/supertest/-/supertest-2.0.11.tgz",
+      "integrity": "sha512-uci4Esokrw9qGb9bvhhSVEjd6rkny/dk5PK/Qz4yxKiyppEI+dOPlNrZBahE3i+PoKFYyDxChVXZ/ysS/nrm1Q==",
+      "dev": true,
+      "requires": {
+        "@types/superagent": "*"
+      }
+    },
+    "@types/yargs": {
+      "version": "13.0.11",
+      "resolved": "https://registry.npmjs.org/@types/yargs/-/yargs-13.0.11.tgz",
+      "integrity": "sha512-NRqD6T4gktUrDi1o1wLH3EKC1o2caCr7/wR87ODcbVITQF106OM3sFN92ysZ++wqelOd1CTzatnOBRDYYG6wGQ==",
+      "dev": true,
+      "requires": {
+        "@types/yargs-parser": "*"
+      }
+    },
+    "@types/yargs-parser": {
+      "version": "20.2.0",
+      "resolved": "https://registry.npmjs.org/@types/yargs-parser/-/yargs-parser-20.2.0.tgz",
+      "integrity": "sha512-37RSHht+gzzgYeobbG+KWryeAW8J33Nhr69cjTqSYymXVZEN9NbRYWoYlRtDhHKPVT1FyNKwaTPC1NynKZpzRA==",
+      "dev": true
+    },
     "@typescript-eslint/eslint-plugin": {
       "version": "1.7.0",
       "resolved": "https://registry.npmjs.org/@typescript-eslint/eslint-plugin/-/eslint-plugin-1.7.0.tgz",
@@ -280,6 +371,12 @@
       "integrity": "sha512-A46qtFgd+g7pDZinpnwiRJtxbC1hpgf0uzP3iG89scHk0AUC7A1TGxf5OiiOUv/JMZR8GOt8hL900hV0bOy5xA==",
       "dev": true
     },
+    "diff-sequences": {
+      "version": "24.9.0",
+      "resolved": "https://registry.npmjs.org/diff-sequences/-/diff-sequences-24.9.0.tgz",
+      "integrity": "sha512-Dj6Wk3tWyTE+Fo1rW8v0Xhwk80um6yFYKbuAxc9c3EZxIHFDYwbi34Uk42u1CdnIiVorvt4RmlSDjIPyzGC2ew==",
+      "dev": true
+    },
     "doctrine": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/doctrine/-/doctrine-3.0.0.tgz",
@@ -775,9 +872,9 @@
       "dev": true
     },
     "hosted-git-info": {
-      "version": "2.7.1",
-      "resolved": "https://registry.npmjs.org/hosted-git-info/-/hosted-git-info-2.7.1.tgz",
-      "integrity": "sha512-7T/BxH19zbcCTa8XkMlbK5lTo1WtgkFi3GvdWEyNuc4Vex7/9Dqbnpsf4JMydcfj9HCg4zUWFTL3Za6lapg5/w==",
+      "version": "2.8.9",
+      "resolved": "https://registry.npmjs.org/hosted-git-info/-/hosted-git-info-2.8.9.tgz",
+      "integrity": "sha512-mxIDAb9Lsm6DoOJ7xH+5+X4y1LU/4Hi50L9C5sIswK3JzULS4bwk1FvjdBgvYR4bzT4tuUQiC15FE2f5HbLvYw==",
       "dev": true
     },
     "iconv-lite": {
@@ -925,6 +1022,24 @@
       "integrity": "sha1-6PvzdNxVb/iUehDcsFctYz8s+hA=",
       "dev": true
     },
+    "jest-diff": {
+      "version": "24.9.0",
+      "resolved": "https://registry.npmjs.org/jest-diff/-/jest-diff-24.9.0.tgz",
+      "integrity": "sha512-qMfrTs8AdJE2iqrTp0hzh7kTd2PQWrsFyj9tORoKmu32xjPjeE4NyjVRDz8ybYwqS2ik8N4hsIpiVTyFeo2lBQ==",
+      "dev": true,
+      "requires": {
+        "chalk": "^2.0.1",
+        "diff-sequences": "^24.9.0",
+        "jest-get-type": "^24.9.0",
+        "pretty-format": "^24.9.0"
+      }
+    },
+    "jest-get-type": {
+      "version": "24.9.0",
+      "resolved": "https://registry.npmjs.org/jest-get-type/-/jest-get-type-24.9.0.tgz",
+      "integrity": "sha512-lUseMzAley4LhIcpSP9Jf+fTrQ4a1yHQwLNeeVa2cEmbCGeoZAtYPOIv8JaxLD/sUpKxetKGP+gsHl8f8TSj8Q==",
+      "dev": true
+    },
     "js-tokens": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-4.0.0.tgz",
@@ -1232,6 +1347,12 @@
       "integrity": "sha1-IZMqVJ9eUv/ZqCf1cOBL5iqX2lQ=",
       "dev": true
     },
+    "prettier": {
+      "version": "1.19.1",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-1.19.1.tgz",
+      "integrity": "sha512-s7PoyDv/II1ObgQunCbB9PdLmUcBZcnWOcxDh7O0N/UwDEsHyqkW+Qh28jW+mVuCdx7gLB0BotYI1Y6uI9iyew==",
+      "dev": true
+    },
     "prettier-linter-helpers": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/prettier-linter-helpers/-/prettier-linter-helpers-1.0.0.tgz",
@@ -1241,6 +1362,26 @@
         "fast-diff": "^1.1.2"
       }
     },
+    "pretty-format": {
+      "version": "24.9.0",
+      "resolved": "https://registry.npmjs.org/pretty-format/-/pretty-format-24.9.0.tgz",
+      "integrity": "sha512-00ZMZUiHaJrNfk33guavqgvfJS30sLYf0f8+Srklv0AMPodGGHcoHgksZ3OThYnIvOd+8yMCn0YiEOogjlgsnA==",
+      "dev": true,
+      "requires": {
+        "@jest/types": "^24.9.0",
+        "ansi-regex": "^4.0.0",
+        "ansi-styles": "^3.2.0",
+        "react-is": "^16.8.4"
+      },
+      "dependencies": {
+        "ansi-regex": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-4.1.0.tgz",
+          "integrity": "sha512-1apePfXM1UOSqw0o9IiFAovVz9M5S1Dg+4TrDwfMewQ6p/rmMueb7tWZjQ1rx4Loy1ArBggoqGpfqqdI4rondg==",
+          "dev": true
+        }
+      }
+    },
     "progress": {
       "version": "2.0.3",
       "resolved": "https://registry.npmjs.org/progress/-/progress-2.0.3.tgz",
@@ -1253,6 +1394,12 @@
       "integrity": "sha512-XRsRjdf+j5ml+y/6GKHPZbrF/8p2Yga0JPtdqTIY2Xe5ohJPD9saDJJLPvp9+NSBprVvevdXZybnj2cv8OEd0A==",
       "dev": true
     },
+    "react-is": {
+      "version": "16.13.1",
+      "resolved": "https://registry.npmjs.org/react-is/-/react-is-16.13.1.tgz",
+      "integrity": "sha512-24e6ynE2H+OKt4kqsOvNd8kBpV65zoxbA4BVsEOB3ARVWQki/DHzaUoC5KuON/BiccDaCCTZBuOcfZs70kR8bQ==",
+      "dev": true
+    },
     "read-pkg": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/read-pkg/-/read-pkg-2.0.0.tgz",
diff --git a/yarn.lock b/yarn.lock
index 00705bd..2381158 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -641,9 +641,9 @@ has@^1.0.1, has@^1.0.3:
     function-bind "^1.1.1"
 
 hosted-git-info@^2.1.4:
-  version "2.7.1"
-  resolved "https://registry.yarnpkg.com/hosted-git-info/-/hosted-git-info-2.7.1.tgz#97f236977bd6e125408930ff6de3eec6281ec047"
-  integrity sha512-7T/BxH19zbcCTa8XkMlbK5lTo1WtgkFi3GvdWEyNuc4Vex7/9Dqbnpsf4JMydcfj9HCg4zUWFTL3Za6lapg5/w==
+  version "2.8.9"
+  resolved "https://registry.yarnpkg.com/hosted-git-info/-/hosted-git-info-2.8.9.tgz#dffc0bf9a21c02209090f2aa69429e1414daf3f9"
+  integrity sha512-mxIDAb9Lsm6DoOJ7xH+5+X4y1LU/4Hi50L9C5sIswK3JzULS4bwk1FvjdBgvYR4bzT4tuUQiC15FE2f5HbLvYw==
 
 iconv-lite@^0.4.24:
   version "0.4.24"