diff --git a/karma.conf.js b/karma.conf.js
index c66a5da96..597008a6b 100644
--- a/karma.conf.js
+++ b/karma.conf.js
@@ -17,17 +17,7 @@ module.exports = function (config) {
       'node_modules/leaflet/dist/leaflet.css',
       'node_modules/leaflet/dist/leaflet-src.js',
       'dist/esri-leaflet-debug.js',
-      // these two are the tempermental ones
-      'spec/Layers/ImageMapLayerSpec.js',
-      'spec/Layers/DynamicMapLayerSpec.js',
-      'spec/Layers/BasemapLayerSpec.js',
-      'spec/Layers/TiledMapLayerSpec.js',
-      'spec/Layers/RasterLayerSpec.js',
-      'spec/Layers/FeatureLayer/*Spec.js',
-      // 'spec/Layers/*Spec.js',
-      'spec/Tasks/*Spec.js',
-      'spec/Services/*Spec.js',
-      'spec/*Spec.js'
+      'spec/**/*Spec.js'
     ],
 
     // list of files to exclude
@@ -80,12 +70,6 @@ module.exports = function (config) {
 
     // Configure the coverage reporters
     coverageReporter: {
-      instrumenters: {
-        isparta: require('isparta')
-      },
-      instrumenter: {
-        'src/**/*.js': 'isparta'
-      },
       reporters: [
         {
           type: 'html',
diff --git a/package-lock.json b/package-lock.json
index f32bb748b..5037cc3ba 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,6 +9,41 @@
       "resolved": "https://registry.npmjs.org/@esri/arcgis-to-geojson-utils/-/arcgis-to-geojson-utils-1.3.0.tgz",
       "integrity": "sha512-8yPorlHeU63U6aT7RJbgSfXGKTZtnQz7Os8Qw96PW2lXJ+g1CRe5L/G8h5qtYHqt5VM4yCUGIhzHHYxdGzanLQ=="
     },
+    "@sinonjs/commons": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/@sinonjs/commons/-/commons-1.0.2.tgz",
+      "integrity": "sha512-WR3dlgqJP4QNrLC4iXN/5/2WaLQQ0VijOOkmflqFGVJ6wLEpbSjo7c0ZeGIdtY8Crk7xBBp87sM6+Mkerz7alw==",
+      "dev": true,
+      "requires": {
+        "type-detect": "4.0.8"
+      }
+    },
+    "@sinonjs/formatio": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/@sinonjs/formatio/-/formatio-3.0.0.tgz",
+      "integrity": "sha512-vdjoYLDptCgvtJs57ULshak3iJe4NW3sJ3g36xVDGff5AE8P30S6A093EIEPjdi2noGhfuNOEkbxt3J3awFW1w==",
+      "dev": true,
+      "requires": {
+        "@sinonjs/samsam": "2.1.0"
+      },
+      "dependencies": {
+        "@sinonjs/samsam": {
+          "version": "2.1.0",
+          "resolved": "https://registry.npmjs.org/@sinonjs/samsam/-/samsam-2.1.0.tgz",
+          "integrity": "sha512-5x2kFgJYupaF1ns/RmharQ90lQkd2ELS8A9X0ymkAAdemYHGtI2KiUHG8nX2WU0T1qgnOU5YMqnBM2V7NUanNw==",
+          "dev": true,
+          "requires": {
+            "array-from": "^2.1.1"
+          }
+        }
+      }
+    },
+    "@sinonjs/samsam": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/@sinonjs/samsam/-/samsam-2.1.2.tgz",
+      "integrity": "sha512-ZwTHAlC9akprWDinwEPD4kOuwaYZlyMwVJIANsKNC3QVp0AHB04m7RnB4eqeWfgmxw8MGTzS9uMaw93Z3QcZbw==",
+      "dev": true
+    },
     "abbrev": {
       "version": "1.0.9",
       "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.0.9.tgz",
@@ -16,12 +51,12 @@
       "dev": true
     },
     "accepts": {
-      "version": "1.3.3",
-      "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.3.tgz",
-      "integrity": "sha1-w8p0NJOGSMPg2cHjKN1otiLChMo=",
+      "version": "1.3.5",
+      "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.5.tgz",
+      "integrity": "sha1-63d99gEXI6OxTopywIBcjoZ0a9I=",
       "dev": true,
       "requires": {
-        "mime-types": "~2.1.11",
+        "mime-types": "~2.1.18",
         "negotiator": "0.6.1"
       }
     },
@@ -117,22 +152,296 @@
       "dev": true
     },
     "anymatch": {
-      "version": "1.3.2",
-      "resolved": "https://registry.npmjs.org/anymatch/-/anymatch-1.3.2.tgz",
-      "integrity": "sha512-0XNayC8lTHQ2OI8aljNCN3sSx6hsr/1+rlcDAotXJR7C1oZZHCNsfpbKwMjRA3Uqb5tF1Rae2oloTr4xpq+WjA==",
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/anymatch/-/anymatch-2.0.0.tgz",
+      "integrity": "sha512-5teOsQWABXHHBFP9y3skS5P3d/WfWXpv3FUpy+LorMrNYaT9pI4oLMQX7jzQ2KklNpGpWHzdCXTDT2Y3XGlZBw==",
       "dev": true,
       "requires": {
-        "micromatch": "^2.1.5",
-        "normalize-path": "^2.0.0"
+        "micromatch": "^3.1.4",
+        "normalize-path": "^2.1.1"
       },
       "dependencies": {
-        "normalize-path": {
-          "version": "2.1.1",
-          "resolved": "https://registry.npmjs.org/normalize-path/-/normalize-path-2.1.1.tgz",
-          "integrity": "sha1-GrKLVW4Zg2Oowab35vogE3/mrtk=",
+        "arr-diff": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/arr-diff/-/arr-diff-4.0.0.tgz",
+          "integrity": "sha1-1kYQdP6/7HHn4VI1dhoyml3HxSA=",
+          "dev": true
+        },
+        "array-unique": {
+          "version": "0.3.2",
+          "resolved": "https://registry.npmjs.org/array-unique/-/array-unique-0.3.2.tgz",
+          "integrity": "sha1-qJS3XUvE9s1nnvMkSp/Y9Gri1Cg=",
+          "dev": true
+        },
+        "braces": {
+          "version": "2.3.2",
+          "resolved": "https://registry.npmjs.org/braces/-/braces-2.3.2.tgz",
+          "integrity": "sha512-aNdbnj9P8PjdXU4ybaWLK2IF3jc/EoDYbC7AazW6to3TRsfXxscC9UXOB5iDiEQrkyIbWp2SLQda4+QAa7nc3w==",
+          "dev": true,
+          "requires": {
+            "arr-flatten": "^1.1.0",
+            "array-unique": "^0.3.2",
+            "extend-shallow": "^2.0.1",
+            "fill-range": "^4.0.0",
+            "isobject": "^3.0.1",
+            "repeat-element": "^1.1.2",
+            "snapdragon": "^0.8.1",
+            "snapdragon-node": "^2.0.1",
+            "split-string": "^3.0.2",
+            "to-regex": "^3.0.1"
+          },
+          "dependencies": {
+            "extend-shallow": {
+              "version": "2.0.1",
+              "resolved": "https://registry.npmjs.org/extend-shallow/-/extend-shallow-2.0.1.tgz",
+              "integrity": "sha1-Ua99YUrZqfYQ6huvu5idaxxWiQ8=",
+              "dev": true,
+              "requires": {
+                "is-extendable": "^0.1.0"
+              }
+            }
+          }
+        },
+        "debug": {
+          "version": "2.6.9",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
+          "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
           "dev": true,
           "requires": {
-            "remove-trailing-separator": "^1.0.1"
+            "ms": "2.0.0"
+          }
+        },
+        "expand-brackets": {
+          "version": "2.1.4",
+          "resolved": "https://registry.npmjs.org/expand-brackets/-/expand-brackets-2.1.4.tgz",
+          "integrity": "sha1-t3c14xXOMPa27/D4OwQVGiJEliI=",
+          "dev": true,
+          "requires": {
+            "debug": "^2.3.3",
+            "define-property": "^0.2.5",
+            "extend-shallow": "^2.0.1",
+            "posix-character-classes": "^0.1.0",
+            "regex-not": "^1.0.0",
+            "snapdragon": "^0.8.1",
+            "to-regex": "^3.0.1"
+          },
+          "dependencies": {
+            "define-property": {
+              "version": "0.2.5",
+              "resolved": "https://registry.npmjs.org/define-property/-/define-property-0.2.5.tgz",
+              "integrity": "sha1-w1se+RjsPJkPmlvFe+BKrOxcgRY=",
+              "dev": true,
+              "requires": {
+                "is-descriptor": "^0.1.0"
+              }
+            },
+            "extend-shallow": {
+              "version": "2.0.1",
+              "resolved": "https://registry.npmjs.org/extend-shallow/-/extend-shallow-2.0.1.tgz",
+              "integrity": "sha1-Ua99YUrZqfYQ6huvu5idaxxWiQ8=",
+              "dev": true,
+              "requires": {
+                "is-extendable": "^0.1.0"
+              }
+            },
+            "is-accessor-descriptor": {
+              "version": "0.1.6",
+              "resolved": "https://registry.npmjs.org/is-accessor-descriptor/-/is-accessor-descriptor-0.1.6.tgz",
+              "integrity": "sha1-qeEss66Nh2cn7u84Q/igiXtcmNY=",
+              "dev": true,
+              "requires": {
+                "kind-of": "^3.0.2"
+              },
+              "dependencies": {
+                "kind-of": {
+                  "version": "3.2.2",
+                  "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-3.2.2.tgz",
+                  "integrity": "sha1-MeohpzS6ubuw8yRm2JOupR5KPGQ=",
+                  "dev": true,
+                  "requires": {
+                    "is-buffer": "^1.1.5"
+                  }
+                }
+              }
+            },
+            "is-data-descriptor": {
+              "version": "0.1.4",
+              "resolved": "https://registry.npmjs.org/is-data-descriptor/-/is-data-descriptor-0.1.4.tgz",
+              "integrity": "sha1-C17mSDiOLIYCgueT8YVv7D8wG1Y=",
+              "dev": true,
+              "requires": {
+                "kind-of": "^3.0.2"
+              },
+              "dependencies": {
+                "kind-of": {
+                  "version": "3.2.2",
+                  "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-3.2.2.tgz",
+                  "integrity": "sha1-MeohpzS6ubuw8yRm2JOupR5KPGQ=",
+                  "dev": true,
+                  "requires": {
+                    "is-buffer": "^1.1.5"
+                  }
+                }
+              }
+            },
+            "is-descriptor": {
+              "version": "0.1.6",
+              "resolved": "https://registry.npmjs.org/is-descriptor/-/is-descriptor-0.1.6.tgz",
+              "integrity": "sha512-avDYr0SB3DwO9zsMov0gKCESFYqCnE4hq/4z3TdUlukEy5t9C0YRq7HLrsN52NAcqXKaepeCD0n+B0arnVG3Hg==",
+              "dev": true,
+              "requires": {
+                "is-accessor-descriptor": "^0.1.6",
+                "is-data-descriptor": "^0.1.4",
+                "kind-of": "^5.0.0"
+              }
+            },
+            "kind-of": {
+              "version": "5.1.0",
+              "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-5.1.0.tgz",
+              "integrity": "sha512-NGEErnH6F2vUuXDh+OlbcKW7/wOcfdRHaZ7VWtqCztfHri/++YKmP51OdWeGPuqCOba6kk2OTe5d02VmTB80Pw==",
+              "dev": true
+            }
+          }
+        },
+        "extglob": {
+          "version": "2.0.4",
+          "resolved": "https://registry.npmjs.org/extglob/-/extglob-2.0.4.tgz",
+          "integrity": "sha512-Nmb6QXkELsuBr24CJSkilo6UHHgbekK5UiZgfE6UHD3Eb27YC6oD+bhcT+tJ6cl8dmsgdQxnWlcry8ksBIBLpw==",
+          "dev": true,
+          "requires": {
+            "array-unique": "^0.3.2",
+            "define-property": "^1.0.0",
+            "expand-brackets": "^2.1.4",
+            "extend-shallow": "^2.0.1",
+            "fragment-cache": "^0.2.1",
+            "regex-not": "^1.0.0",
+            "snapdragon": "^0.8.1",
+            "to-regex": "^3.0.1"
+          },
+          "dependencies": {
+            "define-property": {
+              "version": "1.0.0",
+              "resolved": "https://registry.npmjs.org/define-property/-/define-property-1.0.0.tgz",
+              "integrity": "sha1-dp66rz9KY6rTr56NMEybvnm/sOY=",
+              "dev": true,
+              "requires": {
+                "is-descriptor": "^1.0.0"
+              }
+            },
+            "extend-shallow": {
+              "version": "2.0.1",
+              "resolved": "https://registry.npmjs.org/extend-shallow/-/extend-shallow-2.0.1.tgz",
+              "integrity": "sha1-Ua99YUrZqfYQ6huvu5idaxxWiQ8=",
+              "dev": true,
+              "requires": {
+                "is-extendable": "^0.1.0"
+              }
+            }
+          }
+        },
+        "fill-range": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/fill-range/-/fill-range-4.0.0.tgz",
+          "integrity": "sha1-1USBHUKPmOsGpj3EAtJAPDKMOPc=",
+          "dev": true,
+          "requires": {
+            "extend-shallow": "^2.0.1",
+            "is-number": "^3.0.0",
+            "repeat-string": "^1.6.1",
+            "to-regex-range": "^2.1.0"
+          },
+          "dependencies": {
+            "extend-shallow": {
+              "version": "2.0.1",
+              "resolved": "https://registry.npmjs.org/extend-shallow/-/extend-shallow-2.0.1.tgz",
+              "integrity": "sha1-Ua99YUrZqfYQ6huvu5idaxxWiQ8=",
+              "dev": true,
+              "requires": {
+                "is-extendable": "^0.1.0"
+              }
+            }
+          }
+        },
+        "is-accessor-descriptor": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/is-accessor-descriptor/-/is-accessor-descriptor-1.0.0.tgz",
+          "integrity": "sha512-m5hnHTkcVsPfqx3AKlyttIPb7J+XykHvJP2B9bZDjlhLIoEq4XoK64Vg7boZlVWYK6LUY94dYPEE7Lh0ZkZKcQ==",
+          "dev": true,
+          "requires": {
+            "kind-of": "^6.0.0"
+          }
+        },
+        "is-data-descriptor": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/is-data-descriptor/-/is-data-descriptor-1.0.0.tgz",
+          "integrity": "sha512-jbRXy1FmtAoCjQkVmIVYwuuqDFUbaOeDjmed1tOGPrsMhtJA4rD9tkgA0F1qJ3gRFRXcHYVkdeaP50Q5rE/jLQ==",
+          "dev": true,
+          "requires": {
+            "kind-of": "^6.0.0"
+          }
+        },
+        "is-descriptor": {
+          "version": "1.0.2",
+          "resolved": "https://registry.npmjs.org/is-descriptor/-/is-descriptor-1.0.2.tgz",
+          "integrity": "sha512-2eis5WqQGV7peooDyLmNEPUrps9+SXX5c9pL3xEB+4e9HnGuDa7mB7kHxHw4CbqS9k1T2hOH3miL8n8WtiYVtg==",
+          "dev": true,
+          "requires": {
+            "is-accessor-descriptor": "^1.0.0",
+            "is-data-descriptor": "^1.0.0",
+            "kind-of": "^6.0.2"
+          }
+        },
+        "is-number": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/is-number/-/is-number-3.0.0.tgz",
+          "integrity": "sha1-JP1iAaR4LPUFYcgQJ2r8fRLXEZU=",
+          "dev": true,
+          "requires": {
+            "kind-of": "^3.0.2"
+          },
+          "dependencies": {
+            "kind-of": {
+              "version": "3.2.2",
+              "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-3.2.2.tgz",
+              "integrity": "sha1-MeohpzS6ubuw8yRm2JOupR5KPGQ=",
+              "dev": true,
+              "requires": {
+                "is-buffer": "^1.1.5"
+              }
+            }
+          }
+        },
+        "isobject": {
+          "version": "3.0.1",
+          "resolved": "https://registry.npmjs.org/isobject/-/isobject-3.0.1.tgz",
+          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8=",
+          "dev": true
+        },
+        "kind-of": {
+          "version": "6.0.2",
+          "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-6.0.2.tgz",
+          "integrity": "sha512-s5kLOcnH0XqDO+FvuaLX8DDjZ18CGFk7VygH40QoKPUQhW4e2rvM0rwUq0t8IQDOwYSeLK01U90OjzBTme2QqA==",
+          "dev": true
+        },
+        "micromatch": {
+          "version": "3.1.10",
+          "resolved": "https://registry.npmjs.org/micromatch/-/micromatch-3.1.10.tgz",
+          "integrity": "sha512-MWikgl9n9M3w+bpsY3He8L+w9eF9338xRl8IAO5viDizwSzziFEyUzo2xrrloB64ADbTf8uA8vRqqttDTOmccg==",
+          "dev": true,
+          "requires": {
+            "arr-diff": "^4.0.0",
+            "array-unique": "^0.3.2",
+            "braces": "^2.3.1",
+            "define-property": "^2.0.2",
+            "extend-shallow": "^3.0.2",
+            "extglob": "^2.0.4",
+            "fragment-cache": "^0.2.1",
+            "kind-of": "^6.0.2",
+            "nanomatch": "^1.2.9",
+            "object.pick": "^1.3.0",
+            "regex-not": "^1.0.0",
+            "snapdragon": "^0.8.1",
+            "to-regex": "^3.0.2"
           }
         }
       }
@@ -177,6 +486,12 @@
       "integrity": "sha512-L3hKV5R/p5o81R7O02IGnwpDmkp6E982XhtbuwSe3O4qOtMMMtodicASA1Cny2U+aCXcNpml+m4dPsvsJ3jatg==",
       "dev": true
     },
+    "arr-union": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/arr-union/-/arr-union-3.1.0.tgz",
+      "integrity": "sha1-45sJrqne+Gao8gbiiK9jkZuuOcQ=",
+      "dev": true
+    },
     "array-filter": {
       "version": "0.0.1",
       "resolved": "https://registry.npmjs.org/array-filter/-/array-filter-0.0.1.tgz",
@@ -189,15 +504,11 @@
       "integrity": "sha1-3wEKoSh+Fku9pvlyOwqWoexBh6E=",
       "dev": true
     },
-    "array-includes": {
-      "version": "3.0.3",
-      "resolved": "https://registry.npmjs.org/array-includes/-/array-includes-3.0.3.tgz",
-      "integrity": "sha1-GEtI9i2S10UrsxsyMWXH+L0CJm0=",
-      "dev": true,
-      "requires": {
-        "define-properties": "^1.1.2",
-        "es-abstract": "^1.7.0"
-      }
+    "array-from": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/array-from/-/array-from-2.1.1.tgz",
+      "integrity": "sha1-z+nYwmYoudxa7MYqn12PHzUsEZU=",
+      "dev": true
     },
     "array-map": {
       "version": "0.0.0",
@@ -239,9 +550,9 @@
       "dev": true
     },
     "arraybuffer.slice": {
-      "version": "0.0.6",
-      "resolved": "https://registry.npmjs.org/arraybuffer.slice/-/arraybuffer.slice-0.0.6.tgz",
-      "integrity": "sha1-8zshWfBTKj8xB6JywMz70a0peco=",
+      "version": "0.0.7",
+      "resolved": "https://registry.npmjs.org/arraybuffer.slice/-/arraybuffer.slice-0.0.7.tgz",
+      "integrity": "sha512-wGUIVQXuehL5TCqQun8OW81jGzAWycqzFF8lFp+GOM5BXLYj3bKNsYC4daB7n6XjCqxQA/qgTJ+8ANR3acjrog==",
       "dev": true
     },
     "arrify": {
@@ -250,17 +561,14 @@
       "integrity": "sha1-iYUI2iIm84DfkEcoRWhJwVAaSw0=",
       "dev": true
     },
-    "asap": {
-      "version": "2.0.6",
-      "resolved": "https://registry.npmjs.org/asap/-/asap-2.0.6.tgz",
-      "integrity": "sha1-5QNHYR1+aQlDIIu9r+vLwvuGbUY=",
-      "dev": true
-    },
     "asn1": {
-      "version": "0.2.3",
-      "resolved": "https://registry.npmjs.org/asn1/-/asn1-0.2.3.tgz",
-      "integrity": "sha1-2sh4dxPJlmhJ/IGAd36+nB3fO4Y=",
-      "dev": true
+      "version": "0.2.4",
+      "resolved": "https://registry.npmjs.org/asn1/-/asn1-0.2.4.tgz",
+      "integrity": "sha512-jxwzQpLQjSmWXgwaCZE9Nz+glAG01yF1QnWgbhGwHI5A6FRIEY6IVqtHhIepHqI7/kyEyQEagBC5mBEFlIYvdg==",
+      "dev": true,
+      "requires": {
+        "safer-buffer": "~2.1.0"
+      }
     },
     "assert-plus": {
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@@ -274,6 +582,12 @@
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     "useragent": {
-      "version": "2.3.0",
-      "resolved": "https://registry.npmjs.org/useragent/-/useragent-2.3.0.tgz",
-      "integrity": "sha512-4AoH4pxuSvHCjqLO04sU6U/uE65BYza8l/KKBS0b0hnUPWi+cQ2BpeTEwejCSx9SPV5/U03nniDTrWx5NrmKdw==",
+      "version": "2.2.1",
+      "resolved": "https://registry.npmjs.org/useragent/-/useragent-2.2.1.tgz",
+      "integrity": "sha1-z1k+9PLRdYdei7ZY6pLhik/QbY4=",
       "dev": true,
       "requires": {
-        "lru-cache": "4.1.x",
+        "lru-cache": "2.2.x",
         "tmp": "0.0.x"
-      }
-    },
-    "util": {
-      "version": "0.10.3",
-      "resolved": "https://registry.npmjs.org/util/-/util-0.10.3.tgz",
-      "integrity": "sha1-evsa/lCAUkZInj23/g7TeTNqwPk=",
-      "dev": true,
-      "requires": {
-        "inherits": "2.0.1"
       },
       "dependencies": {
-        "inherits": {
-          "version": "2.0.1",
-          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.1.tgz",
-          "integrity": "sha1-sX0I0ya0Qj5Wjv9xn5GwscvfafE=",
+        "lru-cache": {
+          "version": "2.2.4",
+          "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-2.2.4.tgz",
+          "integrity": "sha1-bGWGGb7PFAMdDQtZSxYELOTcBj0=",
           "dev": true
         }
       }
@@ -7320,9 +7856,9 @@
       "dev": true
     },
     "uuid": {
-      "version": "3.2.1",
-      "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.2.1.tgz",
-      "integrity": "sha512-jZnMwlb9Iku/O3smGWvZhauCf6cvvpKi4BKRiliS3cxnI+Gz9j5MEpTz2UFuXiKPJocb7gnsLHwiS05ige5BEA==",
+      "version": "3.3.2",
+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.3.2.tgz",
+      "integrity": "sha512-yXJmeNaw3DnnKAOKJE51sL/ZaYfWJRl1pK9dr19YFCu0ObS231AB1/LbqTKRAQ5kw8A90rA6fr4riOUpTZvQZA==",
       "dev": true
     },
     "validate-npm-package-license": {
@@ -7370,12 +7906,6 @@
         }
       }
     },
-    "whatwg-fetch": {
-      "version": "2.0.4",
-      "resolved": "https://registry.npmjs.org/whatwg-fetch/-/whatwg-fetch-2.0.4.tgz",
-      "integrity": "sha512-dcQ1GWpOD/eEQ97k66aiEVpNnapVj90/+R+SXTPYGHpYBBypfKJEQjLrvMZ7YXbKm21gXd4NcuxUTjiv1YtLng==",
-      "dev": true
-    },
     "which": {
       "version": "1.3.0",
       "resolved": "https://registry.npmjs.org/which/-/which-1.3.0.tgz",
@@ -7433,21 +7963,16 @@
       }
     },
     "ws": {
-      "version": "1.1.2",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-1.1.2.tgz",
-      "integrity": "sha1-iiRPoFJAHgjJiGz0SoUYnh/UBn8=",
+      "version": "3.3.3",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-3.3.3.tgz",
+      "integrity": "sha512-nnWLa/NwZSt4KQJu51MYlCcSQ5g7INpOrOMt4XV8j4dqTXdmlUmSHQ8/oLC069ckre0fRsgfvsKwbTdtKLCDkA==",
       "dev": true,
       "requires": {
-        "options": ">=0.0.5",
-        "ultron": "1.0.x"
+        "async-limiter": "~1.0.0",
+        "safe-buffer": "~5.1.0",
+        "ultron": "~1.1.0"
       }
     },
-    "wtf-8": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/wtf-8/-/wtf-8-1.0.0.tgz",
-      "integrity": "sha1-OS2LotDxw00e4tYw8V0O+2jhBIo=",
-      "dev": true
-    },
     "xdg-basedir": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/xdg-basedir/-/xdg-basedir-3.0.0.tgz",
@@ -7455,9 +7980,9 @@
       "dev": true
     },
     "xmlhttprequest-ssl": {
-      "version": "1.5.3",
-      "resolved": "https://registry.npmjs.org/xmlhttprequest-ssl/-/xmlhttprequest-ssl-1.5.3.tgz",
-      "integrity": "sha1-GFqIjATspGw+QHDZn3tJ3jUomS0=",
+      "version": "1.5.5",
+      "resolved": "https://registry.npmjs.org/xmlhttprequest-ssl/-/xmlhttprequest-ssl-1.5.5.tgz",
+      "integrity": "sha1-wodrBhaKrcQOV9l+gRkayPQ5iz4=",
       "dev": true
     },
     "xtend": {
diff --git a/package.json b/package.json
index d6516c02f..fbb5d280c 100644
--- a/package.json
+++ b/package.json
@@ -17,31 +17,30 @@
     "tiny-binary-search": "^1.0.3"
   },
   "devDependencies": {
-    "chai": "3.5.0",
-    "gh-release": "^3.2.1",
-    "highlight.js": "^8.0.0",
+    "chai": "4.2.0",
+    "gh-release": "^3.3.2",
+    "highlight.js": "^9.12.0",
     "http-server": "^0.10.0",
-    "husky": "^0.12.0",
-    "isparta": "^4.0.0",
-    "istanbul": "^0.4.2",
-    "karma": "^1.7.1",
-    "karma-chai-sinon": "^0.1.3",
+    "husky": "^1.1.1",
+    "istanbul": "^0.4.5",
+    "karma": "^3.0.0",
+    "karma-chai-sinon": "^0.1.5",
     "karma-chrome-launcher": "^2.2.0",
-    "karma-coverage": "^1.1.1",
+    "karma-coverage": "^1.1.2",
     "karma-mocha": "^1.3.0",
-    "karma-mocha-reporter": "^2.2.1",
-    "karma-sourcemap-loader": "^0.3.5",
+    "karma-mocha-reporter": "^2.2.5",
+    "karma-sourcemap-loader": "^0.3.7",
     "mkdirp": "^0.5.1",
-    "mocha": "^3.4.2",
+    "mocha": "^5.2.0",
     "npm-run-all": "^4.0.2",
     "rollup": "^0.56.5",
     "rollup-plugin-json": "^2.3.0",
     "rollup-plugin-node-resolve": "^3.0.3",
     "rollup-plugin-uglify": "^3.0.0",
     "semistandard": "^9.0.0",
-    "sinon": "^1.11.1",
-    "sinon-chai": "2.8.0",
-    "snazzy": "^5.0.0",
+    "sinon": "^6.3.5",
+    "sinon-chai": "3.2.0",
+    "snazzy": "^8.0.0",
     "uglify-js": "^2.8.29",
     "watch": "^0.17.1"
   },
diff --git a/spec/Layers/DynamicMapLayerSpec.js b/spec/Layers/DynamicMapLayerSpec.js
index 9d78ab37c..dcd39e43b 100644
--- a/spec/Layers/DynamicMapLayerSpec.js
+++ b/spec/Layers/DynamicMapLayerSpec.js
@@ -69,7 +69,7 @@ describe('L.esri.DynamicMapLayer', function () {
   afterEach(function () {
     clock.restore();
     server.restore();
-    map.remove();
+    map = null;
   });
 
   it('should have a L.esri.dynamicMapLayer alias', function () {
diff --git a/spec/Layers/FeatureLayer/FeatureManagerSpec.js b/spec/Layers/FeatureLayer/FeatureManagerSpec.js
index faedac3c5..48f533001 100644
--- a/spec/Layers/FeatureLayer/FeatureManagerSpec.js
+++ b/spec/Layers/FeatureLayer/FeatureManagerSpec.js
@@ -38,7 +38,7 @@ describe('L.esri.FeatureManager', function () {
     };
 
     server = sinon.fakeServer.create();
-    sandbox = sinon.sandbox.create();
+    sandbox = sinon.createSandbox();
     oldRaf = L.Util.requestAnimFrame;
 
     MockLayer = L.esri.FeatureManager.extend({
diff --git a/spec/Layers/ImageMapLayerSpec.js b/spec/Layers/ImageMapLayerSpec.js
index 81b5c3c52..26e9d767e 100644
--- a/spec/Layers/ImageMapLayerSpec.js
+++ b/spec/Layers/ImageMapLayerSpec.js
@@ -65,7 +65,7 @@ describe('L.esri.ImageMapLayer', function () {
   afterEach(function () {
     clock.restore();
     server.restore();
-    map.remove();
+    map = null;
   });
 
   it('should have a L.esri.imageMapLayer alias', function () {
diff --git a/spec/Layers/TiledMapLayerSpec.js b/spec/Layers/TiledMapLayerSpec.js
index b18742618..9c889290c 100644
--- a/spec/Layers/TiledMapLayerSpec.js
+++ b/spec/Layers/TiledMapLayerSpec.js
@@ -167,6 +167,38 @@ describe('L.esri.TiledMapLayer', function () {
       spatialReference: {
         wkid: 102100,
         latestWkid: 3857
+      },
+      tileInfo: {
+        rows: 256,
+        cols: 256,
+        dpi: 96,
+        format: 'JPEG',
+        compressionQuality: 90,
+        origin: {
+          x: -20037508.342787,
+          y: 20037508.342787
+        },
+        spatialReference: {
+          wkid: 102100,
+          latestWkid: 3857
+        },
+        lods: [
+          {
+            level: 0,
+            resolution: 156543.03392800014,
+            scale: 5.91657527591555E8
+          },
+          {
+            level: 1,
+            resolution: 78271.51696399994,
+            scale: 2.95828763795777E8
+          },
+          {
+            level: 2,
+            resolution: 39135.75848200009,
+            scale: 1.47914381897889E8
+          }
+        ]
       }
     }));