diff --git a/package-lock.json b/package-lock.json
index ca101c8..07b93ba 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -28,7 +28,7 @@
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         "jsdoc": "3.4.1",
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+        "mocha": "6.2.3",
         "should": "13.2.3"
       },
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@@ -451,14 +451,49 @@
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-      "resolved": "https://registry.npmjs.org/cliui/-/cliui-4.1.0.tgz",
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+      "resolved": "https://registry.npmjs.org/cliui/-/cliui-5.0.0.tgz",
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+      "dependencies": {
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+        "strip-ansi": "^5.2.0",
+        "wrap-ansi": "^5.1.0"
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+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-4.1.1.tgz",
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+      "dev": true,
+      "engines": {
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+      }
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+      "resolved": "https://registry.npmjs.org/string-width/-/string-width-3.1.0.tgz",
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-        "string-width": "^2.1.1",
-        "strip-ansi": "^4.0.0",
-        "wrap-ansi": "^2.0.0"
+        "emoji-regex": "^7.0.1",
+        "is-fullwidth-code-point": "^2.0.0",
+        "strip-ansi": "^5.1.0"
+      },
+      "engines": {
+        "node": ">=6"
+      }
+    },
+    "node_modules/cliui/node_modules/strip-ansi": {
+      "version": "5.2.0",
+      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-5.2.0.tgz",
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+      "dev": true,
+      "dependencies": {
+        "ansi-regex": "^4.1.0"
+      },
+      "engines": {
+        "node": ">=6"
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-      "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-6.0.5.tgz",
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-      "dev": true,
-      "dependencies": {
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-        "path-key": "^2.0.1",
-        "semver": "^5.5.0",
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@@ -753,15 +772,6 @@
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@@ -1281,10 +1273,9 @@
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-      "deprecated": "Fixed a prototype pollution security issue in 4.1.0, please upgrade to ^4.1.1 or ^5.0.1.",
+      "version": "4.1.1",
+      "resolved": "https://registry.npmjs.org/flat/-/flat-4.1.1.tgz",
+      "integrity": "sha512-FmTtBsHskrU6FJ2VxCnsDb84wu9zhmO3cUX2kGFb5tuwhfXxGciiT0oRY+cck35QmG+NmGh5eLz6lLCpWTqwpA==",
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@@ -1372,18 +1363,6 @@
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-      "resolved": "https://registry.npmjs.org/get-stream/-/get-stream-4.1.0.tgz",
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-      "dev": true,
-      "dependencies": {
-        "pump": "^3.0.0"
-      },
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@@ -1445,12 +1424,6 @@
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-      "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.6.tgz",
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@@ -1537,11 +1510,6 @@
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@@ -1717,20 +1685,25 @@
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-      "dev": true,
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+      "version": "2.0.5",
+      "resolved": "https://registry.npmjs.org/is-buffer/-/is-buffer-2.0.5.tgz",
+      "integrity": "sha512-i2R6zNFDwgEHJyQUtJEk0XFi1i0dPFn/oqjK3/vPCcDeJvW5NQ83V8QbicfF1SupOaB0h8ntgBC2YiE7dfyctQ==",
       "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/feross"
+        },
+        {
+          "type": "patreon",
+          "url": "https://www.patreon.com/feross"
+        },
+        {
+          "type": "consulting",
+          "url": "https://feross.org/support"
+        }
+      ],
       "engines": {
         "node": ">=4"
       }
@@ -1829,15 +1802,6 @@
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@@ -2175,18 +2139,6 @@
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@@ -2258,18 +2210,6 @@
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@@ -2281,34 +2221,11 @@
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@@ -2322,10 +2239,12 @@
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-      "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=",
-      "dev": true
+      "version": "1.2.8",
+      "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.8.tgz",
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+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
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@@ -2339,16 +2258,10 @@
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@@ -2363,7 +2276,7 @@
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@@ -2371,9 +2284,9 @@
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-        "yargs-unparser": "1.5.0"
+        "yargs": "13.3.2",
+        "yargs-parser": "13.1.2",
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@@ -2384,28 +2297,18 @@
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-      "integrity": "sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=",
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       "deprecated": "Legacy versions of mkdirp are no longer supported. Please update to mkdirp 1.x. (Note that the API surface has changed to use Promises in 1.x.)",
       "dev": true,
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+        "minimist": "^1.2.5"
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@@ -2455,18 +2352,6 @@
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@@ -6533,58 +6068,14 @@
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diff --git a/package.json b/package.json
index 0efdcf2..2f5d44b 100644
--- a/package.json
+++ b/package.json
@@ -67,7 +67,7 @@
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     "jsdoc": "3.4.1",
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+    "mocha": "6.2.3",
     "should": "13.2.3"
   }
 }