diff --git a/spec/Chapter.spec.js b/spec/Chapter.spec.js
deleted file mode 100644
index f082948..0000000
--- a/spec/Chapter.spec.js
+++ /dev/null
@@ -1,52 +0,0 @@
-import { Chapter, _privates } from '../src/Chapter.js'
-
-const { getNextBiggerNumber } = _privates
-
-describe('Chapter', function() {
-  const demoText =
-    'Hello World. Foo bar baz. Lorem ipsum dolor sit. Worttrennungsalgorithmus.'
-
-  it('Iterates through segments', function() {
-    let chapter = new Chapter(demoText, 7)
-    let i = 1
-    while (chapter.next()) i++
-    expect(i).toBe(13)
-  })
-
-  it('Iterates through words', function() {
-    let chapter = new Chapter(demoText, 7)
-    let i = 1
-    while (chapter.nextWord()) i++
-    expect(i).toBe(10)
-  })
-
-  it('Iterates through sentences', function() {
-    let chapter = new Chapter(demoText)
-    let i = 1
-    while (chapter.nextSentence()) i++
-    expect(i).toBe(4)
-  })
-
-  it('Iterators return null on finish', function() {
-    let chapter = new Chapter(demoText, 7)
-    let cur
-    while ((cur = chapter.next())) {}
-    expect(cur).toBe(null)
-    while ((cur = chapter.prev())) {}
-    expect(cur).toBe(null)
-    while ((cur = chapter.nextWord())) {}
-    expect(cur).toBe(null)
-    while ((cur = chapter.prevWord())) {}
-    expect(cur).toBe(null)
-    while ((cur = chapter.nextSentence())) {}
-    expect(cur).toBe(null)
-    while ((cur = chapter.prevSentence())) {}
-    expect(cur).toBe(null)
-  })
-})
-
-describe('nextBiggerNumber', function() {
-  it('Returns a the next bigger number', function() {
-    expect(getNextBiggerNumber(5, [1, 4, 6])).toBe(6)
-  })
-})
diff --git a/spec/findPivot.spec.js b/spec/findPivot.spec.js
deleted file mode 100644
index e69de29..0000000
diff --git a/spec/index.spec.js b/spec/index.spec.js
deleted file mode 100644
index 6b91b84..0000000
--- a/spec/index.spec.js
+++ /dev/null
@@ -1,3 +0,0 @@
-import './Chapter.spec.js'
-import './findPivot.spec.js'
-import './parseText.spec.js'
diff --git a/spec/parseText.spec.js b/spec/parseText.spec.js
deleted file mode 100644
index fc68ec7..0000000
--- a/spec/parseText.spec.js
+++ /dev/null
@@ -1,47 +0,0 @@
-import { parseText, _privates } from '../src/textProcessing/parseText.js'
-
-const { splitLongWord } = _privates
-
-describe('parseText', function() {
-  it('returns an object with expected properties', function() {
-    let parsed = parseText('Hello World. Test Sentence.')
-    expect(parsed.segments).toEqual(['Hello', 'World.', 'Test', 'Sentence.'])
-    expect(parsed.words).toEqual([0, 1, 2, 3])
-    expect(parsed.sentences).toEqual([0, 2])
-  })
-})
-
-describe('splitLongWord', function() {
-  it('returns an array', function() {
-    expect(Array.isArray(splitLongWord('asdf'))).toBeTruthy()
-  })
-
-  it('returns the single word by default', function() {
-    expect(splitLongWord('asdf')).toEqual(['asdf'])
-  })
-
-  it('returns small words unmodified', function() {
-    expect(splitLongWord('asdf', 5)).toEqual(['asdf'])
-    expect(splitLongWord('asdf', 4)).toEqual(['asdf'])
-  })
-
-  it('splits long words', function() {
-    expect(splitLongWord('asdf', 3)).toEqual(['as', 'df'])
-  })
-
-  it('split into even parts', function() {
-    expect(splitLongWord('1234567890', 9)).toEqual(['12345', '67890'])
-  })
-
-  it('corner case: uneven length', function() {
-    expect(splitLongWord('123456789', 8)).toEqual(['1234', '56789'])
-  })
-
-  it('corner case: multiple uneven parts', function() {
-    let word = '1234567890123'
-    let segments = splitLongWord(word, 3)
-    expect(segments.reduce((x, y) => x + y, '')).toBe(word)
-    expect(Math.max(...segments.map(seg => seg.length))).toBe(3)
-    expect(Math.min(...segments.map(seg => seg.length)))
-  })
-})