Add test coverage reporting (#55)

This adds an integration with https://coveralls.io/ to report on code coverage of tests

.gitignore

@@ -2,3 +2,4 @@ node_modules
 .cache
 dist
 .idea
+coverage

package-lock.json

@@ -2433,6 +2433,27 @@
       "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac=",
       "dev": true
     },
+    "coveralls": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/coveralls/-/coveralls-3.0.1.tgz",
+      "integrity": "sha512-FAzXwiDOYLGDWH+zgoIA+8GbWv50hlx+kpEJyvzLKOdnIBv9uWoVl4DhqGgyUHpiRjAlF8KYZSipWXYtllWH6Q==",
+      "dev": true,
+      "requires": {
+        "js-yaml": "3.11.0",
+        "lcov-parse": "0.0.10",
+        "log-driver": "1.2.7",
+        "minimist": "1.2.0",
+        "request": "2.87.0"
+      },
+      "dependencies": {
+        "minimist": {
+          "version": "1.2.0",
+          "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
+          "integrity": "sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=",
+          "dev": true
+        }
+      }
+    },
     "cpx": {
       "version": "1.5.0",
       "resolved": "https://registry.npmjs.org/cpx/-/cpx-1.5.0.tgz",
@@ -6438,6 +6459,12 @@
         "invert-kv": "1.0.0"
       }
     },
+    "lcov-parse": {
+      "version": "0.0.10",
+      "resolved": "https://registry.npmjs.org/lcov-parse/-/lcov-parse-0.0.10.tgz",
+      "integrity": "sha1-GwuP+ayceIklBYK3C3ExXZ2m2aM=",
+      "dev": true
+    },
     "left-pad": {
       "version": "1.3.0",
       "resolved": "https://registry.npmjs.org/left-pad/-/left-pad-1.3.0.tgz",
@@ -6519,6 +6546,12 @@
       "integrity": "sha1-0CJTc662Uq3BvILklFM5qEJ1R3M=",
       "dev": true
     },
+    "log-driver": {
+      "version": "1.2.7",
+      "resolved": "https://registry.npmjs.org/log-driver/-/log-driver-1.2.7.tgz",
+      "integrity": "sha512-U7KCmLdqsGHBLeWqYlFA0V0Sl6P08EE1ZrmA9cxjUE0WVqT9qnyVDPz1kzpFEP0jdJuFnasWIfSd7fsaNXkpbg==",
+      "dev": true
+    },
     "longest": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/longest/-/longest-1.0.1.tgz",

package.json

@@ -8,19 +8,18 @@
     "prettier": "prettier --write './**/*.ts' './**/*.tsx'",
     "lint": "eslint './**/*.ts' './**/*.tsx'",
     "jest": "jest",
-    "test": "tsc --noEmit && npm run lint && jest",
+    "coverage": "npm run jest -- --coverage && coveralls < coverage/lcov.info",
+    "test": "tsc --noEmit && npm run lint && npm run coverage",
     "serve": "parcel index.html --open --no-autoinstall"
   },
-  "browserslist": [
-    "last 2 Chrome versions",
-    "last 2 Firefox versions"
-  ],
+  "browserslist": ["last 2 Chrome versions", "last 2 Firefox versions"],
   "author": "",
   "license": "MIT",
   "devDependencies": {
     "@types/jest": "^22.2.3",
     "@types/pako": "1.0.0",
     "aphrodite": "2.1.0",
+    "coveralls": "^3.0.1",
     "eslint": "^4.19.1",
     "eslint-plugin-prettier": "^2.6.0",
     "jest": "^23.0.1",
@@ -40,12 +39,7 @@
       "^.+\\.tsx?$": "ts-jest"
     },
     "testRegex": "\\.test\\.tsx?$",
-    "moduleFileExtensions": [
-      "ts",
-      "tsx",
-      "js",
-      "jsx",
-      "json"
-    ]
+    "collectCoverageFrom": ["*.{ts,tsx}", "!*.d.{ts,tsx}"],
+    "moduleFileExtensions": ["ts", "tsx", "js", "jsx", "json"]
   }
 }