Test coverage: include all source files (#551)

In addition this changes the thresholds to meet the existing level
of test coverage. This was motivated by work that imported a lot
of existing yet untested (and unexercised) code, which brought down
the total % without adding any more code.

jest.config.js

@@ -21,17 +21,13 @@ module.exports = {
   collectCoverage: true,
 
   // An array of glob patterns indicating a set of files for which coverage information should be collected
-  // collectCoverageFrom: [
-  //   "src/Common/Headers*"
-  // ],
+  collectCoverageFrom: ["src/**/*.{js,jsx,ts,tsx}"],
 
   // The directory where Jest should output its coverage files
   coverageDirectory: "coverage",
 
   // An array of regexp pattern strings used to skip coverage collection
-  // coveragePathIgnorePatterns: [
-  //   "/node_modules/"
-  // ],
+  coveragePathIgnorePatterns: ["/node_modules/"],
 
   // A list of reporter names that Jest uses when writing coverage reports
   coverageReporters: ["json", "text", "cobertura"],
@@ -39,10 +35,10 @@ module.exports = {
   // An object that configures minimum threshold enforcement for coverage results
   coverageThreshold: {
     global: {
-      branches: 22,
-      functions: 28,
-      lines: 33,
-      statements: 31,
+      branches: 25,
+      functions: 25,
+      lines: 30,
+      statements: 30,
     },
   },