Add tests for /util/glossary.js

test/util/glossary.test.js

@@ -0,0 +1,19 @@
+/* eslint no-undef: 0 */
+
+import mapCrimeToGlossaryTerm from '../../src/util/glossary'
+
+describe('glossary utility', () => {
+  it('default export should be a function', () => {
+    expect(typeof mapCrimeToGlossaryTerm).toEqual('function')
+  })
+
+  it('should return a term if it exists', () => {
+    const actual = mapCrimeToGlossaryTerm('larceny-theft')
+    expect(actual).toEqual('larceny')
+  })
+
+  it('should return undefined if there is no matching term', () => {
+    const actual = mapCrimeToGlossaryTerm('fake-term')
+    expect(actual).toEqual(undefined)
+  })
+})