Added some unit tests

src/__tests__/query-tests.ts

@@ -0,0 +1,52 @@
+import { Query } from '../query'
+
+describe('The Query class', () => {
+  const stringQuery =
+    "foo bar 'lorem ipsum' -baz dolor \"sit amet\"  -'quoted exclusion'"
+
+  it('should correctly parse string queries', () => {
+    // Act
+    const query = new Query(stringQuery)
+
+    // Assert
+    const segments = query.segments.map(s => s.value)
+    expect(segments).toHaveLength(5)
+    expect(segments).toContain('foo')
+    expect(segments).toContain('bar')
+    expect(segments).toContain('lorem ipsum')
+    expect(segments).toContain('dolor')
+    expect(segments).toContain('sit amet')
+
+    const exclusions = query.exclusions.map(s => s.value)
+    expect(exclusions).toHaveLength(2)
+    expect(exclusions).toContain('baz')
+    expect(exclusions).toContain('quoted exclusion')
+  })
+
+  it('should mark quoted segments & exclusions as "exact"', () => {
+    // Act
+    const query = new Query(stringQuery)
+
+    // Assert
+    expect(query.segments.filter(s => s.exact)).toHaveLength(2)
+    expect(
+      query.segments.find(o => o.value === 'lorem ipsum')!.exact,
+    ).toBeTruthy()
+    expect(query.segments.find(o => o.value === 'sit amet')!.exact).toBeTruthy()
+
+    expect(query.exclusions.filter(s => s.exact)).toHaveLength(1)
+    expect(
+      query.exclusions.find(o => o.value === 'quoted exclusion')!.exact,
+    ).toBeTruthy()
+  })
+
+  describe('.getExactTerms()', () => {
+    it('should an array of strings containg "exact" values', () => {
+      // Act
+      const query = new Query(stringQuery)
+
+      // Assert
+      expect(query.getExactTerms()).toEqual(['lorem ipsum', 'sit amet'])
+    })
+  })
+})