diff --git a/server/finders/bookFinder.test.js b/server/finders/bookFinder.test.js
index ab82b0f9..c204b99a 100644
--- a/server/finders/bookFinder.test.js
+++ b/server/finders/bookFinder.test.js
@@ -1,62 +1,323 @@
 const bookFinder = require('./BookFinder')
+const Audnexus = require('../providers/Audnexus')
+const { LogLevel } = require('../utils/constants')
+const Logger = require('../Logger')
+jest.mock('../providers/Audnexus')
 
-describe('TitleCandidates with author', () => {
-  let titleCandidates
+Logger.setLogLevel(LogLevel.INFO)
 
-  beforeEach(() => {
-    titleCandidates = new bookFinder.constructor.TitleCandidates('leo tolstoy')
-  })
+describe('TitleCandidates', () => {
+  describe('cleanAuthor non-empty', () => {
+    let titleCandidates
+    let cleanAuthor = 'leo tolstoy'
 
-  describe('single add', () => {
-    it.each([
-      ['adds a clean title to candidates', 'anna karenina', ['anna karenina']],
-      ['lowercases candidate title', 'ANNA KARENINA', ['anna karenina']],
-      ['removes author name from title', 'anna karenina by leo tolstoy', ['anna karenina']],
-      ['removes author name title', 'leo tolstoy', []],
-      ['cleans subtitle from title', 'anna karenina: subtitle', ['anna karenina']],
-      ['removes "by ..." from title', 'anna karenina by arnold schwarzenegger', ['anna karenina', 'anna karenina by arnold schwarzenegger']],
-      ['removes bitrate from title', 'anna karenina 64kbps', ['anna karenina', 'anna karenina 64kbps']],
-      ['removes edition from title 1', 'anna karenina 2nd edition', ['anna karenina', 'anna karenina 2nd edition']],
-      ['removes edition from title 2', 'anna karenina 4th ed.', ['anna karenina', 'anna karenina 4th ed.']],
-      ['removes file-type from title', 'anna karenina.mp3', ['anna karenina', 'anna karenina.mp3']],
-      ['removes "a novel" from title', 'anna karenina a novel', ['anna karenina', 'anna karenina a novel']],
-      ['removes preceding/trailing numbers from title', '1 anna karenina 2', ['anna karenina', '1 anna karenina 2']],
-      ['does not add empty title', '', []],
-      ['does not add title with only spaces', '   ', []],
-      ['adds digit-only title, but not its empty string transformation', '1984', ['1984']],
-    ])('%s', (_, title, expected) => {
-      titleCandidates.add(title)
-      expect(titleCandidates.getCandidates()).toEqual(expected)
+    beforeEach(() => {
+      titleCandidates = new bookFinder.constructor.TitleCandidates(cleanAuthor)
+    })
+
+    describe('single add', () => {
+      it.each([
+        ['adds a clean title to candidates', 'anna karenina', ['anna karenina']],
+        ['lowercases candidate title', 'ANNA KARENINA', ['anna karenina']],
+        ['removes author name from title', `anna karenina by ${cleanAuthor}`, ['anna karenina']],
+        ['removes author name title', cleanAuthor, []],
+        ['cleans subtitle from title', 'anna karenina: subtitle', ['anna karenina']],
+        ['removes "by ..." from title', 'anna karenina by arnold schwarzenegger', ['anna karenina', 'anna karenina by arnold schwarzenegger']],
+        ['removes bitrate from title', 'anna karenina 64kbps', ['anna karenina', 'anna karenina 64kbps']],
+        ['removes edition from title 1', 'anna karenina 2nd edition', ['anna karenina', 'anna karenina 2nd edition']],
+        ['removes edition from title 2', 'anna karenina 4th ed.', ['anna karenina', 'anna karenina 4th ed.']],
+        ['removes file-type from title', 'anna karenina.mp3', ['anna karenina', 'anna karenina.mp3']],
+        ['removes "a novel" from title', 'anna karenina a novel', ['anna karenina', 'anna karenina a novel']],
+        ['removes preceding/trailing numbers from title', '1 anna karenina 2', ['anna karenina', '1 anna karenina 2']],
+        ['does not add empty title', '', []],
+        ['does not add title with only spaces', '   ', []],
+        ['adds digit-only title, but not its empty string transformation', '1984', ['1984']],
+      ])('%s', (_, title, expected) => {
+        titleCandidates.add(title)
+        expect(titleCandidates.getCandidates()).toEqual(expected)
+      })
+    })
+
+    describe('multi add', () => {
+      it.each([
+        ['digits-only candidates get lower priority', ['01', 'anna karenina'], ['anna karenina', '01']],
+        ['transformed candidates get higher priority', ['title1 1', 'title2 1'], ['title1', 'title2', 'title1 1', 'title2 1']],
+        ['other candidates are ordered by position', ['title1', 'title2'], ['title1', 'title2']],
+        ['author candidate is removed', ['title1', cleanAuthor], ['title1']],
+      ])('%s', (_, titles, expected) => {
+        for (const title of titles) titleCandidates.add(title)
+        expect(titleCandidates.getCandidates()).toEqual(expected)
+      })
     })
   })
 
-  describe('multi add', () => {
-    it.each([
-      ['digits-only candidates get lower priority', ['01', 'anna karenina'], ['anna karenina', '01']],
-      ['transformed candidates get higher priority', ['title1 1', 'title2 1'], ['title1', 'title2', 'title1 1', 'title2 1']],
-      ['other candidates are ordered by position', ['title1', 'title2'], ['title1', 'title2']],
-      ['author candidate is removed', ['title1', 'leo tolstoy'], ['title1']],
-    ])('%s', (_, titles, expected) => {
-      for (const title of titles) titleCandidates.add(title)
-      expect(titleCandidates.getCandidates()).toEqual(expected)
+  describe('cleanAuthor empty', () => {
+    let titleCandidates
+    let cleanAuthor = ''
+  
+    beforeEach(() => {
+      titleCandidates = new bookFinder.constructor.TitleCandidates(cleanAuthor)
+    })
+  
+    describe('single add', () => {
+      it.each([
+        ['does not remove author name', 'leo tolstoy', ['leo tolstoy']],
+      ])('%s', (_, title, expected) => {
+        titleCandidates.add(title)
+        expect(titleCandidates.getCandidates()).toEqual(expected)
+      })
+    })
+  })  
+})
+
+
+describe('AuthorCandidates', () => {
+  let authorCandidates
+  const audnexus = new Audnexus()
+  audnexus.authorASINsRequest.mockResolvedValue([ 
+    { name: 'Leo Tolstoy' }, 
+    { name: 'Nikolai Gogol' },
+    { name: 'J. K. Rowling' },
+  ])
+
+  describe('cleanAuthor is null', () => {
+    beforeEach(() => {
+      authorCandidates = new bookFinder.constructor.AuthorCandidates(null, audnexus)
+    })
+
+    describe('no add', () => {
+      it.each([
+        ['returns empty author', []],
+      ])('%s', async (_,  expected) => {
+        expect(await authorCandidates.getCandidates()).toEqual([...expected, ''])
+      })
+    })
+
+    describe('single add', () => {
+      it.each([
+        ['returns valid author', 'nikolai gogol', ['nikolai gogol']],        
+        ['does not return invalid author (not in list)', 'fyodor dostoevsky', []],
+        ['returns valid author (valid is a substring of added)', 'dr. nikolai gogol', ['nikolai gogol']],
+        ['returns added author (added is a substring of valid)', 'gogol', ['gogol']],
+        ['returns valid author (added is similar to valid)', 'nicolai gogol', ['nikolai gogol']],
+        ['does not return invalid author (added too distant)', 'nikolai google', []],
+        ['returns valid author (contains redundant spaces)', 'nikolai    gogol', ['nikolai gogol']],
+        ['returns valid author (normalized initials)', 'j.k. rowling', ['j. k. rowling']],
+      ])('%s', async (_, author, expected) => {
+        authorCandidates.add(author)
+        expect(await authorCandidates.getCandidates()).toEqual([...expected, ''])
+      })
+    })
+
+    describe('multi add', () => {
+      it.each([
+        ['returns valid authors', ['nikolai gogol', 'leo tolstoy'], ['nikolai gogol', 'leo tolstoy']],
+        ['returns deduped valid authors', ['nikolai gogol', 'nikolai gogol'], ['nikolai gogol']],
+      ])('%s', async (_, authors, expected) => {
+        for (const author of authors) authorCandidates.add(author)
+        expect(await authorCandidates.getCandidates()).toEqual([...expected, ''])
+      })
+    })
+  })
+
+  describe('cleanAuthor is valid', () => {
+    const cleanAuthor = 'leo tolstoy'
+
+    beforeEach(() => {
+      authorCandidates = new bookFinder.constructor.AuthorCandidates(cleanAuthor, audnexus)
+    })
+
+    describe('no add', () => {
+      it.each([
+        ['returns clean author from constructor', [cleanAuthor]],
+      ])('%s', async (_,  expected) => {
+        expect(await authorCandidates.getCandidates()).toEqual([...expected, ''])
+      })
+    })
+
+    describe('single add', () => {
+      it.each([
+        ['returns cleanAuthor + valid author', 'nikolai gogol', [cleanAuthor, 'nikolai gogol']],
+        ['returns deduplicated author', cleanAuthor, [cleanAuthor]],        
+      ])('%s', async (_, author, expected) => {
+        authorCandidates.add(author)
+        expect(await authorCandidates.getCandidates()).toEqual([...expected, ''])
+      })
+    })
+  })
+
+
+  describe('cleanAuthor is invalid', () => {
+    const cleanAuthor = 'fyodor dostoevsky'
+
+    beforeEach(() => {
+      authorCandidates = new bookFinder.constructor.AuthorCandidates(cleanAuthor, audnexus)
+    })
+
+    describe('no add', () => {
+      it.each([
+        ['returns invalid clean author from constructor', [cleanAuthor]],
+      ])('%s', async (_,  expected) => {
+        expect(await authorCandidates.getCandidates()).toEqual([...expected, ''])
+      })
+    })
+
+    describe('single add', () => {
+      it.each([
+        ['returns only valid author', 'nikolai gogol', ['nikolai gogol']],
+      ])('%s', async (_, author, expected) => {
+        authorCandidates.add(author)
+        expect(await authorCandidates.getCandidates()).toEqual([...expected, ''])
+      })
+    })
+  })
+
+  describe('cleanAuthor is invalid and dirty', () => {
+    describe('no add', () => {
+      it.each([
+        ['returns invalid aggressively cleanAuthor from constructor', 'fyodor dostoevsky, translated by jackie chan', ['fyodor dostoevsky']],
+        ['returns invalid cleanAuthor from constructor (empty after aggressive ckean)', ', jackie chan', [', jackie chan']],
+      ])('%s', async (_,  cleanAuthor, expected) => {
+        authorCandidates = new bookFinder.constructor.AuthorCandidates(cleanAuthor, audnexus)
+        expect(await authorCandidates.getCandidates()).toEqual([...expected, ''])
+      })
     })
   })
 })
 
-describe('TitleCandidates with no author', () => {
-  let titleCandidates
+describe('search', () => {
+  const t = 'title'
+  const a = 'author'
+  const u = 'unknown'
+  const r = ['book']
 
-  beforeEach(() => {
-    titleCandidates = new bookFinder.constructor.TitleCandidates('')
-  })
-
-  describe('single add', () => {
-    it.each([
-      ['does not removes author name', 'leo tolstoy', ['leo tolstoy']],
-    ])('%s', (_, title, expected) => {
-      titleCandidates.add(title)
-      expect(titleCandidates.getCandidates()).toEqual(expected)
+  bookFinder.runSearch = jest.fn((searchTitle, searchAuthor) => {
+    return new Promise((resolve) => {
+      resolve(searchTitle == t && (searchAuthor == a || searchAuthor == u) ? r : [])
     })
   })
-})
+  
+  const audnexus = new Audnexus()
+  audnexus.authorASINsRequest.mockResolvedValue([ 
+    { name: a }, 
+  ])
+  bookFinder.audnexus = audnexus
 
+  beforeEach(() => {
+    bookFinder.runSearch.mockClear()
+  })
+
+  describe('no or empty title', () => {
+    it('returns empty result', async () => {
+      expect(await bookFinder.search('', '', a)).toEqual([])
+      expect(bookFinder.runSearch).toHaveBeenCalledTimes(0)
+    })
+  })
+
+  describe('exact valid title and exact valid author', () => {
+    it('returns result (no fuzzy searches)', async () => {
+      expect(await bookFinder.search('', t, a)).toEqual(r)
+      expect(bookFinder.runSearch).toHaveBeenCalledTimes(1)
+    })
+  })
+
+  describe('contains valid title and exact valid author', () => {
+    it.each([
+      [`${t} -`],
+      [`${t} - ${a}`],
+      [`${a} - ${t}`],
+      [`${t}- ${a}`],
+      [`${t} -${a}`],
+      [`${t} ${a}`],
+      [`${a} - ${t} (unabridged)`],
+      [`${a} - ${t} (subtitle) - mp3`],
+      [`${t} {narrator} - series-01 64kbps 10:00:00`],
+      [`${a} - ${t} (2006) narrated by narrator [unabridged]`],
+      [`${t} - ${a} 2022 mp3`],
+      [`01 ${t}`],
+      [`2022_${t}_HQ`],
+//      [`${a} - ${t}`],
+    ])(`returns result ('%s', '${a}') (1 fuzzy search)` , async (searchTitle) => {
+      expect(await bookFinder.search('', searchTitle, a)).toEqual(r)
+      expect(bookFinder.runSearch).toHaveBeenCalledTimes(2)
+    })
+
+    
+    it.each([
+      [`s-01 - ${t} (narrator) 64kbps 10:00:00`],
+      [`${a} - series 01 - ${t}`],
+//      [`${a} - ${t}`],
+    ])(`returns result ('%s', '${a}') (2 fuzzy searches)` , async (searchTitle) => {
+      expect(await bookFinder.search('', searchTitle, a)).toEqual(r)
+      expect(bookFinder.runSearch).toHaveBeenCalledTimes(3)
+    })
+
+    it.each([
+      [`${t}-${a}`],
+      [`${t} junk`],
+    ])(`returns empty result ('%s', '${a}')`, async (searchTitle) => { 
+      expect(await bookFinder.search('', searchTitle, a)).toEqual([])
+    })
+
+    describe('maxFuzzySearches = 0', () => {
+      it.each([
+        [`${t} - ${a}`],
+      ])(`returns empty result ('%s', '${a}') (no fuzzy search)` , async (searchTitle) => {
+        expect(await bookFinder.search('', searchTitle, a, null, null, { maxFuzzySearches: 0 })).toEqual([])
+        expect(bookFinder.runSearch).toHaveBeenCalledTimes(1)
+      })  
+    })
+
+    describe('maxFuzzySearches = 1', () => {
+      it.each([
+        [`s-01 - ${t} (narrator) 64kbps 10:00:00`],
+        [`${a} - series 01 - ${t}`],
+        ])(`returns empty result ('%s', '${a}') (1 fuzzy search)` , async (searchTitle) => {
+        expect(await bookFinder.search('', searchTitle, a, null, null, { maxFuzzySearches: 1 })).toEqual([])
+        expect(bookFinder.runSearch).toHaveBeenCalledTimes(2)
+      })  
+    })  
+  })
+
+  describe('contains valid title and no author', () => {
+    it.each([
+      [`${t} - ${a}`],
+      [`${a} - ${t}`],
+    ])(`returns result ('%s', '') (1 fuzzy search)` , async (searchTitle) => {
+      expect(await bookFinder.search('', searchTitle, '')).toEqual(r)
+      expect(bookFinder.runSearch).toHaveBeenCalledTimes(2)
+    })
+
+    it.each([
+      [`${t}`],
+      [`${t} - ${u}`],
+      [`${u} - ${t}`],
+    ])(`returns empty result ('%s', '') (no fuzzy search)` , async (searchTitle) => {
+      expect(await bookFinder.search('', searchTitle, '')).toEqual([])
+    })
+  })
+
+  describe('contains valid title and unknown author', () => {
+    it.each([
+      [`${t} - ${u}`],
+      [`${u} - ${t}`],
+    ])(`returns result ('%s', '') (1 fuzzy search)` , async (searchTitle) => {
+      expect(await bookFinder.search('', searchTitle, u)).toEqual(r)
+      expect(bookFinder.runSearch).toHaveBeenCalledTimes(2)
+    })
+/*
+    it.each([
+    ])(`returns result ('%s', '') (2 fuzzy searches)` , async (searchTitle) => {
+      expect(await bookFinder.search('', searchTitle, u)).toEqual(r)
+      expect(bookFinder.runSearch).toHaveBeenCalledTimes(3)
+    })
+*/
+    it.each([
+      [`${t}`],
+    ])(`returns result ('%s', '') (no fuzzy search)` , async (searchTitle) => {
+      expect(await bookFinder.search('', searchTitle, u)).toEqual(r)
+      expect(bookFinder.runSearch).toHaveBeenCalledTimes(1)
+    })
+  })
+
+})
\ No newline at end of file