diff --git a/package-lock.json b/package-lock.json
index c4d59a90..da6a2fb3 100644
--- a/package-lock.json
+++ b/package-lock.json
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-        "xtend": "^4.0.1"
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-        "browser-sync-ui": "^2.26.2",
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-        "etag": "^1.8.1",
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+        "fresh": "0.5.2",
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@@ -2736,8 +2736,7 @@
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@@ -2751,23 +2750,21 @@
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-        "lodash": "~4.17.10",
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+            "is-extglob": "1.0.0"
           }
         },
         "module-deps": {
@@ -8825,21 +8823,21 @@
           "integrity": "sha512-NPs5N511VD1rrVJihSso/LiBShRbJALYBKzDW91uZYy7BpjnO4bGnZL3HjZ9yKcFdZUWwaYjDz9zxbuP7vKMuQ==",
           "dev": true,
           "requires": {
-            "JSONStream": "^1.0.3",
-            "browser-resolve": "^1.7.0",
-            "cached-path-relative": "^1.0.0",
-            "concat-stream": "~1.6.0",
-            "defined": "^1.0.0",
-            "detective": "^5.0.2",
-            "duplexer2": "^0.1.2",
-            "inherits": "^2.0.1",
-            "parents": "^1.0.0",
-            "readable-stream": "^2.0.2",
-            "resolve": "^1.4.0",
-            "stream-combiner2": "^1.1.1",
-            "subarg": "^1.0.0",
-            "through2": "^2.0.0",
-            "xtend": "^4.0.0"
+            "JSONStream": "1.3.5",
+            "browser-resolve": "1.11.3",
+            "cached-path-relative": "1.0.2",
+            "concat-stream": "1.6.2",
+            "defined": "1.0.0",
+            "detective": "5.1.0",
+            "duplexer2": "0.1.4",
+            "inherits": "2.0.3",
+            "parents": "1.0.1",
+            "readable-stream": "2.3.6",
+            "resolve": "1.8.1",
+            "stream-combiner2": "1.1.1",
+            "subarg": "1.0.0",
+            "through2": "2.0.3",
+            "xtend": "4.0.1"
           }
         },
         "os-browserify": {
@@ -8860,7 +8858,7 @@
           "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
           "dev": true,
           "requires": {
-            "safe-buffer": "~5.1.0"
+            "safe-buffer": "5.1.2"
           }
         },
         "vm-browserify": {
@@ -8876,7 +8874,7 @@
       "resolved": "https://registry.npmjs.org/wcwidth/-/wcwidth-1.0.1.tgz",
       "integrity": "sha1-8LDc+RW8X/FSivrbLA4XtTLaL+g=",
       "requires": {
-        "defaults": "^1.0.3"
+        "defaults": "1.0.3"
       }
     },
     "webidl-conversions": {
@@ -8890,8 +8888,8 @@
       "integrity": "sha1-DK+dLXVdk67gSdS90NP+LMoqJOs=",
       "dev": true,
       "requires": {
-        "http-parser-js": ">=0.4.0",
-        "websocket-extensions": ">=0.1.1"
+        "http-parser-js": "0.4.13",
+        "websocket-extensions": "0.1.3"
       }
     },
     "websocket-extensions": {
@@ -8918,9 +8916,9 @@
       "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-7.0.0.tgz",
       "integrity": "sha512-37GeVSIJ3kn1JgKyjiYNmSLP1yzbpb29jdmwBSgkD9h40/hyrR/OifpVUndji3tmwGgD8qpw7iQu3RSbCrBpsQ==",
       "requires": {
-        "lodash.sortby": "^4.7.0",
-        "tr46": "^1.0.1",
-        "webidl-conversions": "^4.0.2"
+        "lodash.sortby": "4.7.0",
+        "tr46": "1.0.1",
+        "webidl-conversions": "4.0.2"
       }
     },
     "which": {
@@ -8929,7 +8927,7 @@
       "integrity": "sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==",
       "dev": true,
       "requires": {
-        "isexe": "^2.0.0"
+        "isexe": "2.0.0"
       }
     },
     "which-module": {
@@ -8956,8 +8954,8 @@
       "integrity": "sha1-2Pw9KE3QV5T+hJc8rs3Rz4JP3YU=",
       "dev": true,
       "requires": {
-        "string-width": "^1.0.1",
-        "strip-ansi": "^3.0.1"
+        "string-width": "1.0.2",
+        "strip-ansi": "3.0.1"
       }
     },
     "wrappy": {
@@ -8972,9 +8970,9 @@
       "integrity": "sha512-nnWLa/NwZSt4KQJu51MYlCcSQ5g7INpOrOMt4XV8j4dqTXdmlUmSHQ8/oLC069ckre0fRsgfvsKwbTdtKLCDkA==",
       "dev": true,
       "requires": {
-        "async-limiter": "~1.0.0",
-        "safe-buffer": "~5.1.0",
-        "ultron": "~1.1.0"
+        "async-limiter": "1.0.0",
+        "safe-buffer": "5.1.2",
+        "ultron": "1.1.1"
       }
     },
     "xhr-write-stream": {
@@ -8983,8 +8981,8 @@
       "integrity": "sha1-41eEjg0Dm0Ef3Vs7+BvkfuXOJqo=",
       "dev": true,
       "requires": {
-        "concat-stream": "~0.1.0",
-        "ordered-emitter": "~0.1.0"
+        "concat-stream": "0.1.1",
+        "ordered-emitter": "0.1.1"
       },
       "dependencies": {
         "concat-stream": {
@@ -9024,24 +9022,24 @@
     },
     "yargs": {
       "version": "6.4.0",
-      "resolved": "https://registry.npmjs.org/yargs/-/yargs-6.4.0.tgz",
+      "resolved": "http://registry.npmjs.org/yargs/-/yargs-6.4.0.tgz",
       "integrity": "sha1-gW4ahm1VmMzzTlWW3c4i2S2kkNQ=",
       "dev": true,
       "requires": {
-        "camelcase": "^3.0.0",
-        "cliui": "^3.2.0",
-        "decamelize": "^1.1.1",
-        "get-caller-file": "^1.0.1",
-        "os-locale": "^1.4.0",
-        "read-pkg-up": "^1.0.1",
-        "require-directory": "^2.1.1",
-        "require-main-filename": "^1.0.1",
-        "set-blocking": "^2.0.0",
-        "string-width": "^1.0.2",
-        "which-module": "^1.0.0",
-        "window-size": "^0.2.0",
-        "y18n": "^3.2.1",
-        "yargs-parser": "^4.1.0"
+        "camelcase": "3.0.0",
+        "cliui": "3.2.0",
+        "decamelize": "1.2.0",
+        "get-caller-file": "1.0.3",
+        "os-locale": "1.4.0",
+        "read-pkg-up": "1.0.1",
+        "require-directory": "2.1.1",
+        "require-main-filename": "1.0.1",
+        "set-blocking": "2.0.0",
+        "string-width": "1.0.2",
+        "which-module": "1.0.0",
+        "window-size": "0.2.0",
+        "y18n": "3.2.1",
+        "yargs-parser": "4.2.1"
       },
       "dependencies": {
         "camelcase": {
@@ -9058,7 +9056,7 @@
       "integrity": "sha1-KczqwNxPA8bIe0qfIX3RjJ90hxw=",
       "dev": true,
       "requires": {
-        "camelcase": "^3.0.0"
+        "camelcase": "3.0.0"
       },
       "dependencies": {
         "camelcase": {
@@ -9075,7 +9073,7 @@
       "integrity": "sha1-lSj0QtqxsihOWLQ3m7GU4i4MQAU=",
       "dev": true,
       "requires": {
-        "fd-slicer": "~1.0.1"
+        "fd-slicer": "1.0.1"
       }
     },
     "yeast": {
diff --git a/package.json b/package.json
index c62224e2..b1460b49 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,8 @@
   "main": "src/ImageSequencer.js",
   "scripts": {
     "debug": "TEST=true node ./index.js -i ./examples/images/monarch.png -s invert",
-    "test": "TEST=true tape test/ui/*.js test/**/*.js test/*.js test/ui/user-interface.js | tap-spec; browserify test/modules/image-sequencer.js test/modules/chain.js test/modules/meta-modules.js test/modules/replace.js test/modules/import-export.js test/modules/run.js test/modules/dynamic-imports.js test/util/parse-input.js | tape-run --render=\"tap-spec\"",
+    "test": "TEST=true tape test/core/*.js test/core/ui/user-interface.js | tap-spec; browserify test/core/modules/image-sequencer.js test/core/modules/chain.js test/core/modules/meta-modules.js test/core/modules/replace.js test/core/modules/import-export.js test/core/modules/run.js test/core/modules/dynamic-imports.js test/core/util/parse-input.js | tape-run --render=\"tap-spec\"",
+    "test-ui": "jasmine",
     "setup": "npm i && npm i -g grunt grunt-cli",
     "start": "grunt serve"
   },
@@ -56,7 +57,10 @@
     "grunt-contrib-watch": "^1.1.0",
     "image-filter-core": "~2.0.2",
     "image-filter-threshold": "~2.0.1",
-    "looks-same": "^6.0.0",
+    "jasmine-core": "^3.3.0",
+    "jasmine-jquery": "^2.1.1",
+    "jasmine-spec-reporter": "^4.2.1",
+    "looks-same": "^5.0.1",
     "matchdep": "^2.0.0",
     "tap-spec": "^5.0.0",
     "tape": "^4.9.2",
diff --git a/spec/defaultHtmlSequencerUi.spec.js b/spec/defaultHtmlSequencerUi.spec.js
new file mode 100644
index 00000000..ea53c682
--- /dev/null
+++ b/spec/defaultHtmlSequencerUi.spec.js
@@ -0,0 +1,42 @@
+describe('Default sequencer HTML', function() {
+
+  var DefaultHtmlSequencerUi = require('../examples/lib/defaultHtmlSequencerUi')
+  var sequencer = require('../src/ImageSequencer')()
+  var defaultHtmlSequencerUi;
+
+  beforeEach(()=>{
+    defaultHtmlSequencerUi = new DefaultHtmlSequencerUi(sequencer)
+
+    spyOn(defaultHtmlSequencerUi,'onLoad')
+    spyOn(defaultHtmlSequencerUi,'selectNewStepUi')
+    spyOn(defaultHtmlSequencerUi,'removeStepUi')
+    spyOn(defaultHtmlSequencerUi,'addStepUi')
+    spyOn(defaultHtmlSequencerUi,'importStepsFromUrlHash')
+
+    defaultHtmlSequencerUi.onLoad()
+    defaultHtmlSequencerUi.selectNewStepUi()
+    defaultHtmlSequencerUi.addStepUi()
+    defaultHtmlSequencerUi.removeStepUi()
+    defaultHtmlSequencerUi.importStepsFromUrlHash()
+  })
+
+  it('load default ui', function() {
+    expect(defaultHtmlSequencerUi.onLoad).toHaveBeenCalled()
+  })
+
+  it('select step ui', function() {
+    expect(defaultHtmlSequencerUi.selectNewStepUi).toHaveBeenCalled()
+  })
+
+  it('add step ui', function() {
+    expect(defaultHtmlSequencerUi.addStepUi).toHaveBeenCalled()
+  })
+
+  it('remove step ui', function() {
+    expect(defaultHtmlSequencerUi.removeStepUi).toHaveBeenCalled()
+  })
+
+  it('import options from url', function() {
+    expect(defaultHtmlSequencerUi.importStepsFromUrlHash).toHaveBeenCalled()
+  })
+})
\ No newline at end of file
diff --git a/spec/defaultHtmlStepUi.spec.js b/spec/defaultHtmlStepUi.spec.js
new file mode 100644
index 00000000..33eec53d
--- /dev/null
+++ b/spec/defaultHtmlStepUi.spec.js
@@ -0,0 +1,61 @@
+var { JSDOM } = require('jsdom');
+var DOM = new JSDOM(`<body></body>`);
+
+global.document = DOM.window.document;
+
+describe('Sequencer step HTML', function() {
+
+  var DefaultHtmlStepUi = require('../examples/lib/defaultHtmlStepUi')
+  var sequencer = require('../src/ImageSequencer')()
+  var defaultHtmlStepUi;
+  var step = 'brightness'
+  var options = {
+    name: "Brightness",
+    description: "Change the brightness of the image by given percent value"
+  }
+  // options = JSON.parse(options)
+
+  beforeEach(()=>{
+    defaultHtmlStepUi = new DefaultHtmlStepUi(sequencer)
+
+    spyOn(defaultHtmlStepUi,'getPreview')
+    spyOn(defaultHtmlStepUi,'onSetup')
+    spyOn(defaultHtmlStepUi,'onComplete')
+    spyOn(defaultHtmlStepUi,'onDraw')
+    spyOn(defaultHtmlStepUi,'onRemove')
+    spyOn(defaultHtmlStepUi,'notify')
+
+    defaultHtmlStepUi.getPreview()
+    defaultHtmlStepUi.onSetup(step,options)
+    defaultHtmlStepUi.onComplete(step)
+    defaultHtmlStepUi.onDraw(step)
+    defaultHtmlStepUi.onRemove(step)
+    defaultHtmlStepUi.notify('Step removed','remove-notification')
+  })
+
+
+  it('result preview ui', function() {
+    expect(defaultHtmlStepUi.getPreview).toHaveBeenCalled()
+  })
+
+  it('load initial setup ui', function() {
+    expect(defaultHtmlStepUi.onSetup).toHaveBeenCalledWith(step,options)
+  })
+
+  it('load completion ui', function() {
+    expect(defaultHtmlStepUi.onComplete).toHaveBeenCalledWith(step)
+  })
+
+  it('draw step ui', function() {
+    expect(defaultHtmlStepUi.onDraw).toHaveBeenCalledWith(step)
+  })
+
+  it('remove step ui', function() {
+    expect(defaultHtmlStepUi.onRemove).toHaveBeenCalledWith(step)
+  })
+
+  it('notification ui', function() {
+    expect(defaultHtmlStepUi.notify).toHaveBeenCalledWith('Step removed','remove-notification')
+  })
+
+})
\ No newline at end of file
diff --git a/spec/helpers/reporter.js b/spec/helpers/reporter.js
new file mode 100644
index 00000000..77d907fe
--- /dev/null
+++ b/spec/helpers/reporter.js
@@ -0,0 +1,8 @@
+var SpecReporter = require('jasmine-spec-reporter').SpecReporter;
+
+jasmine.getEnv().clearReporters();               // remove default reporter logs
+jasmine.getEnv().addReporter(new SpecReporter({  // add jasmine-spec-reporter
+  spec: {
+    displayPending: true
+  }
+}));
\ No newline at end of file
diff --git a/spec/insertPreview.spec.js b/spec/insertPreview.spec.js
new file mode 100644
index 00000000..0073557c
--- /dev/null
+++ b/spec/insertPreview.spec.js
@@ -0,0 +1,26 @@
+describe('Preview UI HTML', function() {
+
+  var InsertPreview = require('../examples/lib/insertPreview')
+  var sequencer = require('../src/ImageSequencer')()
+  var insertPreview;
+  var options = { brightness: 50 }
+
+  beforeEach(()=>{
+    insertPreview = InsertPreview
+
+    spyOn(insertPreview,'generatePreview')
+    spyOn(insertPreview,'updatePreviews')
+
+    insertPreview.generatePreview('brightness',options,'src','selector')
+    insertPreview.updatePreviews('src','selector')
+  })
+
+  it('generate preview ui', function() {
+    expect(insertPreview.generatePreview).toHaveBeenCalledWith('brightness',options,'src','selector')
+  })
+
+  it('update preview ui', function() {
+    expect(insertPreview.updatePreviews).toHaveBeenCalledWith('src','selector')
+  })
+
+})
\ No newline at end of file
diff --git a/spec/intermediateHtmlStepUi.spec.js b/spec/intermediateHtmlStepUi.spec.js
new file mode 100644
index 00000000..9cd012d6
--- /dev/null
+++ b/spec/intermediateHtmlStepUi.spec.js
@@ -0,0 +1,19 @@
+describe('Intermediate step HTML', function() {
+
+  var IntermediateHtmlStepUi = require('../examples/lib/intermediateHtmlStepUi')
+  var sequencer = require('../src/ImageSequencer')()
+  var intermediateHtmlStepUi;
+
+  beforeEach(()=>{
+    intermediateHtmlStepUi = new IntermediateHtmlStepUi(sequencer)
+
+    spyOn(intermediateHtmlStepUi,'insertStep')
+
+    intermediateHtmlStepUi.insertStep()
+  })
+
+  it('insert step ui', function() {
+    expect(intermediateHtmlStepUi.insertStep).toHaveBeenCalled()
+  })
+
+})
\ No newline at end of file
diff --git a/spec/support/jasmine.json b/spec/support/jasmine.json
new file mode 100644
index 00000000..370fc446
--- /dev/null
+++ b/spec/support/jasmine.json
@@ -0,0 +1,11 @@
+{
+  "spec_dir": "spec",
+  "spec_files": [
+    "**/*[sS]pec.js"
+  ],
+  "helpers": [
+    "helpers/**/*.js"
+  ],
+  "stopSpecOnExpectationFailure": false,
+  "random": true
+}
diff --git a/spec/urlHash.spec.js b/spec/urlHash.spec.js
new file mode 100644
index 00000000..99f6a047
--- /dev/null
+++ b/spec/urlHash.spec.js
@@ -0,0 +1,40 @@
+describe('URL manipulation methods', function() {
+
+  var UrlHash = require('../examples/lib/urlHash')
+  var urlHash;
+  var params = {
+    module: 'brightness',
+    brightness: 50
+  }
+
+  beforeEach(()=>{
+    urlHash = UrlHash
+
+    spyOn(urlHash,'getUrlHashParameters')
+    spyOn(urlHash,'getUrlHashParameter')
+    spyOn(urlHash,'setUrlHashParameters')
+    spyOn(urlHash,'setUrlHashParameter')
+
+    urlHash.getUrlHashParameters()
+    urlHash.getUrlHashParameter('module')
+    urlHash.setUrlHashParameters(params)
+    urlHash.setUrlHashParameter('module','brightness')
+  })
+
+  it('gets url hash params from window hash', function() {
+    expect(urlHash.getUrlHashParameters).toHaveBeenCalled()
+  })
+
+  it('gets url hash param from params object', function() {
+    expect(urlHash.getUrlHashParameter).toHaveBeenCalledWith('module')
+  })
+
+  it('accepts param object and sets url hash params', function() {
+    expect(urlHash.setUrlHashParameters).toHaveBeenCalledWith(params)
+  })
+
+  it('accepts param key-value pair and sets url hash params', function() {
+    expect(urlHash.setUrlHashParameter).toHaveBeenCalledWith('module','brightness')
+  })
+
+})
\ No newline at end of file
diff --git a/test/cli.js b/test/core/cli.js
similarity index 86%
rename from test/cli.js
rename to test/core/cli.js
index 1153855e..a284e792 100644
--- a/test/cli.js
+++ b/test/core/cli.js
@@ -1,6 +1,6 @@
 'use strict';
 
-const cliUtils = require('../src/CliUtils');
+const cliUtils = require('../../src/CliUtils');
 const test = require('tape');
 
 test('Output directory is correctly generated',function(t){
diff --git a/test/modules/brightness.js b/test/core/modules/brightness.js
similarity index 96%
rename from test/modules/brightness.js
rename to test/core/modules/brightness.js
index 619d99d5..17e3ddb4 100644
--- a/test/modules/brightness.js
+++ b/test/core/modules/brightness.js
@@ -1,5 +1,5 @@
 var test = require('tape');
-require('../../src/ImageSequencer.js');
+require('../../../src/ImageSequencer.js');
 
 var sequencer1 = ImageSequencer({ ui: false });
 var options = {brightness : 50};
diff --git a/test/modules/chain.js b/test/core/modules/chain.js
similarity index 98%
rename from test/modules/chain.js
rename to test/core/modules/chain.js
index d8fe8258..48791e16 100644
--- a/test/modules/chain.js
+++ b/test/core/modules/chain.js
@@ -6,7 +6,7 @@ var test = require('tape');
 // We should only test headless code here.
 // http://stackoverflow.com/questions/21358015/error-jquery-requires-a-window-with-a-document#25622933
 
-require('../../src/ImageSequencer.js');
+require('../../../src/ImageSequencer.js');
 
 var sequencer = ImageSequencer({ ui: false });
 var red = "data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAYEBQYFBAYGBQYHBwYIChAKCgkJChQODwwQFxQYGBcUFhYaHSUfGhsjHBYWICwgIyYnKSopGR8tMC0oMCUoKSj/2wBDAQcHBwoIChMKChMoGhYaKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCj/wAARCAAQABADASIAAhEBAxEB/8QAFQABAQAAAAAAAAAAAAAAAAAAAAf/xAAUEAEAAAAAAAAAAAAAAAAAAAAA/8QAFQEBAQAAAAAAAAAAAAAAAAAABgj/xAAUEQEAAAAAAAAAAAAAAAAAAAAA/9oADAMBAAIRAxEAPwCdABykX//Z";
diff --git a/test/modules/dynamic-imports.js b/test/core/modules/dynamic-imports.js
similarity index 95%
rename from test/modules/dynamic-imports.js
rename to test/core/modules/dynamic-imports.js
index 20ebf540..459a3d31 100644
--- a/test/modules/dynamic-imports.js
+++ b/test/core/modules/dynamic-imports.js
@@ -1,5 +1,5 @@
 var test = require('tape');
-require('../../src/ImageSequencer.js');
+require('../../../src/ImageSequencer.js');
 
 var sequencer = ImageSequencer({ ui: false });
 var red = "data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAYEBQYFBAYGBQYHBwYIChAKCgkJChQODwwQFxQYGBcUFhYaHSUfGhsjHBYWICwgIyYnKSopGR8tMC0oMCUoKSj/2wBDAQcHBwoIChMKChMoGhYaKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCj/wAARCAAQABADASIAAhEBAxEB/8QAFQABAQAAAAAAAAAAAAAAAAAAAAf/xAAUEAEAAAAAAAAAAAAAAAAAAAAA/8QAFQEBAQAAAAAAAAAAAAAAAAAABgj/xAAUEQEAAAAAAAAAAAAAAAAAAAAA/9oADAMBAAIRAxEAPwCdABykX//Z";
diff --git a/test/modules/image-manip.js b/test/core/modules/image-manip.js
similarity index 98%
rename from test/modules/image-manip.js
rename to test/core/modules/image-manip.js
index d518301d..6f757263 100644
--- a/test/modules/image-manip.js
+++ b/test/core/modules/image-manip.js
@@ -7,7 +7,7 @@ var DataURItoBuffer = require('data-uri-to-buffer');
 // We should only test headless code here.
 // http://stackoverflow.com/questions/21358015/error-jquery-requires-a-window-with-a-document#25622933
 
-require('../../src/ImageSequencer.js');
+require('../../../src/ImageSequencer.js');
 
 //require image files as DataURLs so they can be tested alike on browser and Node.
 var sequencer = ImageSequencer({ ui: false });
diff --git a/test/modules/image-sequencer.js b/test/core/modules/image-sequencer.js
similarity index 99%
rename from test/modules/image-sequencer.js
rename to test/core/modules/image-sequencer.js
index 7e2d7e00..40da0bcc 100644
--- a/test/modules/image-sequencer.js
+++ b/test/core/modules/image-sequencer.js
@@ -6,7 +6,7 @@ var test = require('tape');
 // We should only test headless code here.
 // http://stackoverflow.com/questions/21358015/error-jquery-requires-a-window-with-a-document#25622933
 
-require('../../src/ImageSequencer.js');
+require('../../../src/ImageSequencer.js');
 
 // This function is used to test whether or not any additional global variables are being created
 function copy(g, a) {
diff --git a/test/modules/images/IS-QR.js b/test/core/modules/images/IS-QR.js
similarity index 100%
rename from test/modules/images/IS-QR.js
rename to test/core/modules/images/IS-QR.js
diff --git a/test/modules/images/test.gif.js b/test/core/modules/images/test.gif.js
similarity index 100%
rename from test/modules/images/test.gif.js
rename to test/core/modules/images/test.gif.js
diff --git a/test/modules/images/test.png.js b/test/core/modules/images/test.png.js
similarity index 100%
rename from test/modules/images/test.png.js
rename to test/core/modules/images/test.png.js
diff --git a/test/modules/import-export.js b/test/core/modules/import-export.js
similarity index 98%
rename from test/modules/import-export.js
rename to test/core/modules/import-export.js
index cc55080b..919ee001 100644
--- a/test/modules/import-export.js
+++ b/test/core/modules/import-export.js
@@ -1,5 +1,5 @@
 var test = require('tape');
-require('../../src/ImageSequencer.js');
+require('../../../src/ImageSequencer.js');
 
 var sequencer = ImageSequencer({ ui: false });
 var red = "data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAYEBQYFBAYGBQYHBwYIChAKCgkJChQODwwQFxQYGBcUFhYaHSUfGhsjHBYWICwgIyYnKSopGR8tMC0oMCUoKSj/2wBDAQcHBwoIChMKChMoGhYaKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCj/wAARCAAQABADASIAAhEBAxEB/8QAFQABAQAAAAAAAAAAAAAAAAAAAAf/xAAUEAEAAAAAAAAAAAAAAAAAAAAA/8QAFQEBAQAAAAAAAAAAAAAAAAAABgj/xAAUEQEAAAAAAAAAAAAAAAAAAAAA/9oADAMBAAIRAxEAPwCdABykX//Z";
diff --git a/test/modules/meta-modules.js b/test/core/modules/meta-modules.js
similarity index 95%
rename from test/modules/meta-modules.js
rename to test/core/modules/meta-modules.js
index 046cc56f..fdef51af 100644
--- a/test/modules/meta-modules.js
+++ b/test/core/modules/meta-modules.js
@@ -1,5 +1,5 @@
 var test = require('tape');
-require('../../src/ImageSequencer.js');
+require('../../../src/ImageSequencer.js');
 
 var sequencer1 = ImageSequencer({ ui: false });
 var sequencer2 = ImageSequencer({ ui: false });
diff --git a/test/modules/replace.js b/test/core/modules/replace.js
similarity index 95%
rename from test/modules/replace.js
rename to test/core/modules/replace.js
index c8257dde..12b1f0c2 100644
--- a/test/modules/replace.js
+++ b/test/core/modules/replace.js
@@ -3,7 +3,7 @@
 var fs = require('fs');
 var test = require('tape');
 
-require('../../src/ImageSequencer.js');
+require('../../../src/ImageSequencer.js');
 
 var sequencer = ImageSequencer({ ui: false });
 var red = "data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAYEBQYFBAYGBQYHBwYIChAKCgkJChQODwwQFxQYGBcUFhYaHSUfGhsjHBYWICwgIyYnKSopGR8tMC0oMCUoKSj/2wBDAQcHBwoIChMKChMoGhYaKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCj/wAARCAAQABADASIAAhEBAxEB/8QAFQABAQAAAAAAAAAAAAAAAAAAAAf/xAAUEAEAAAAAAAAAAAAAAAAAAAAA/8QAFQEBAQAAAAAAAAAAAAAAAAAABgj/xAAUEQEAAAAAAAAAAAAAAAAAAAAA/9oADAMBAAIRAxEAPwCdABykX//Z";
diff --git a/test/modules/run.js b/test/core/modules/run.js
similarity index 96%
rename from test/modules/run.js
rename to test/core/modules/run.js
index a320e8dc..4f1d0113 100644
--- a/test/modules/run.js
+++ b/test/core/modules/run.js
@@ -4,7 +4,7 @@ var fs = require('fs');
 var test = require('tape');
 var DataURItoBuffer = require('data-uri-to-buffer');
 
-require('../../src/ImageSequencer.js');
+require('../../../src/ImageSequencer.js');
 
 var sequencer = ImageSequencer({ ui: false });
 var red = "data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAYEBQYFBAYGBQYHBwYIChAKCgkJChQODwwQFxQYGBcUFhYaHSUfGhsjHBYWICwgIyYnKSopGR8tMC0oMCUoKSj/2wBDAQcHBwoIChMKChMoGhYaKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCj/wAARCAAQABADASIAAhEBAxEB/8QAFQABAQAAAAAAAAAAAAAAAAAAAAf/xAAUEAEAAAAAAAAAAAAAAAAAAAAA/8QAFQEBAQAAAAAAAAAAAAAAAAAABgj/xAAUEQEAAAAAAAAAAAAAAAAAAAAA/9oADAMBAAIRAxEAPwCdABykX//Z";
diff --git a/test/modules/testModule/Module.js b/test/core/modules/testModule/Module.js
similarity index 100%
rename from test/modules/testModule/Module.js
rename to test/core/modules/testModule/Module.js
diff --git a/test/modules/testModule/info.json b/test/core/modules/testModule/info.json
similarity index 100%
rename from test/modules/testModule/info.json
rename to test/core/modules/testModule/info.json
diff --git a/test/ui/user-interface.js b/test/core/ui/user-interface.js
similarity index 74%
rename from test/ui/user-interface.js
rename to test/core/ui/user-interface.js
index 925f7422..5dbfad24 100644
--- a/test/ui/user-interface.js
+++ b/test/core/ui/user-interface.js
@@ -6,11 +6,11 @@ var DOM = new JSDOM(`<body></body>`);
 
 global.document = DOM.window.document;
 
-var DefaultHtmlStepUi = require('../../examples/lib/defaultHtmlStepUi').DefaultHtmlStepUi;
-var sequencer = require('../../src/ImageSequencer.js')();
-var UserInterface = require('../../src/ui/UserInterface');
+var DefaultHtmlStepUi = require('../../../examples/lib/defaultHtmlStepUi')
+var sequencer = require('../../../src/ImageSequencer.js')();
+var UserInterface = require('../../../src/ui/UserInterface');
 
-test('Notify function works for all three UIs', function (t) {  
+test('Notify function works for all three UIs', function (t) {
     //Mocking console.log for testing default notify()
     function doesLogMessage(f, message) {
         var oldLog = console.log,
diff --git a/test/util/parse-input.js b/test/core/util/parse-input.js
similarity index 90%
rename from test/util/parse-input.js
rename to test/core/util/parse-input.js
index b752d3b2..0a2e8bf4 100644
--- a/test/util/parse-input.js
+++ b/test/core/util/parse-input.js
@@ -2,7 +2,7 @@ var test = require('tape');
 
 var red = "data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAYEBQYFBAYGBQYHBwYIChAKCgkJChQODwwQFxQYGBcUFhYaHSUfGhsjHBYWICwgIyYnKSopGR8tMC0oMCUoKSj/2wBDAQcHBwoIChMKChMoGhYaKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCj/wAARCAAQABADASIAAhEBAxEB/8QAFQABAQAAAAAAAAAAAAAAAAAAAAf/xAAUEAEAAAAAAAAAAAAAAAAAAAAA/8QAFQEBAQAAAAAAAAAAAAAAAAAABgj/xAAUEQEAAAAAAAAAAAAAAAAAAAAA/9oADAMBAAIRAxEAPwCdABykX//Z";
 
-var parseCornerCoordinateInputs = require('../../src/util/ParseInputCoordinates');
+var parseCornerCoordinateInputs = require('../../../src/util/ParseInputCoordinates');
 
 
 test('parseCornerCoordinateInputs works.', function (t) {
diff --git a/test/spec/defaultHtmlSequencerUi.spec.js b/test/spec/defaultHtmlSequencerUi.spec.js
new file mode 100644
index 00000000..a3701457
--- /dev/null
+++ b/test/spec/defaultHtmlSequencerUi.spec.js
@@ -0,0 +1,42 @@
+describe('Default sequencer HTML', function() {
+
+  var DefaultHtmlSequencerUi = require('../../examples/lib/defaultHtmlSequencerUi')
+  var sequencer = require('../../src/ImageSequencer')()
+  var defaultHtmlSequencerUi;
+
+  beforeEach(()=>{
+    defaultHtmlSequencerUi = new DefaultHtmlSequencerUi(sequencer)
+
+    spyOn(defaultHtmlSequencerUi,'onLoad')
+    spyOn(defaultHtmlSequencerUi,'selectNewStepUi')
+    spyOn(defaultHtmlSequencerUi,'removeStepUi')
+    spyOn(defaultHtmlSequencerUi,'addStepUi')
+    spyOn(defaultHtmlSequencerUi,'importStepsFromUrlHash')
+
+    defaultHtmlSequencerUi.onLoad()
+    defaultHtmlSequencerUi.selectNewStepUi()
+    defaultHtmlSequencerUi.addStepUi()
+    defaultHtmlSequencerUi.removeStepUi()
+    defaultHtmlSequencerUi.importStepsFromUrlHash()
+  })
+
+  it('load default ui', function() {
+    expect(defaultHtmlSequencerUi.onLoad).toHaveBeenCalled()
+  })
+
+  it('select step ui', function() {
+    expect(defaultHtmlSequencerUi.selectNewStepUi).toHaveBeenCalled()
+  })
+
+  it('add step ui', function() {
+    expect(defaultHtmlSequencerUi.addStepUi).toHaveBeenCalled()
+  })
+
+  it('remove step ui', function() {
+    expect(defaultHtmlSequencerUi.removeStepUi).toHaveBeenCalled()
+  })
+
+  it('import options from url', function() {
+    expect(defaultHtmlSequencerUi.importStepsFromUrlHash).toHaveBeenCalled()
+  })
+})
\ No newline at end of file
diff --git a/test/spec/defaultHtmlStepUi.spec.js b/test/spec/defaultHtmlStepUi.spec.js
new file mode 100644
index 00000000..d237c6f9
--- /dev/null
+++ b/test/spec/defaultHtmlStepUi.spec.js
@@ -0,0 +1,61 @@
+var { JSDOM } = require('jsdom');
+var DOM = new JSDOM(`<body></body>`);
+
+global.document = DOM.window.document;
+
+describe('Sequencer step HTML', function() {
+
+  var DefaultHtmlStepUi = require('../../examples/lib/defaultHtmlStepUi')
+  var sequencer = require('../../src/ImageSequencer')()
+  var defaultHtmlStepUi;
+  var step = 'brightness'
+  var options = {
+    name: "Brightness",
+    description: "Change the brightness of the image by given percent value"
+  }
+  // options = JSON.parse(options)
+
+  beforeEach(()=>{
+    defaultHtmlStepUi = new DefaultHtmlStepUi(sequencer)
+
+    spyOn(defaultHtmlStepUi,'getPreview')
+    spyOn(defaultHtmlStepUi,'onSetup')
+    spyOn(defaultHtmlStepUi,'onComplete')
+    spyOn(defaultHtmlStepUi,'onDraw')
+    spyOn(defaultHtmlStepUi,'onRemove')
+    spyOn(defaultHtmlStepUi,'notify')
+
+    defaultHtmlStepUi.getPreview()
+    defaultHtmlStepUi.onSetup(step,options)
+    defaultHtmlStepUi.onComplete(step)
+    defaultHtmlStepUi.onDraw(step)
+    defaultHtmlStepUi.onRemove(step)
+    defaultHtmlStepUi.notify('Step removed','remove-notification')
+  })
+
+
+  it('result preview ui', function() {
+    expect(defaultHtmlStepUi.getPreview).toHaveBeenCalled()
+  })
+
+  it('load initial setup ui', function() {
+    expect(defaultHtmlStepUi.onSetup).toHaveBeenCalledWith(step,options)
+  })
+
+  it('load completion ui', function() {
+    expect(defaultHtmlStepUi.onComplete).toHaveBeenCalledWith(step)
+  })
+
+  it('draw step ui', function() {
+    expect(defaultHtmlStepUi.onDraw).toHaveBeenCalledWith(step)
+  })
+
+  it('remove step ui', function() {
+    expect(defaultHtmlStepUi.onRemove).toHaveBeenCalledWith(step)
+  })
+
+  it('notification ui', function() {
+    expect(defaultHtmlStepUi.notify).toHaveBeenCalledWith('Step removed','remove-notification')
+  })
+
+})
\ No newline at end of file
diff --git a/test/spec/helpers/reporter.js b/test/spec/helpers/reporter.js
new file mode 100644
index 00000000..77d907fe
--- /dev/null
+++ b/test/spec/helpers/reporter.js
@@ -0,0 +1,8 @@
+var SpecReporter = require('jasmine-spec-reporter').SpecReporter;
+
+jasmine.getEnv().clearReporters();               // remove default reporter logs
+jasmine.getEnv().addReporter(new SpecReporter({  // add jasmine-spec-reporter
+  spec: {
+    displayPending: true
+  }
+}));
\ No newline at end of file
diff --git a/test/spec/insertPreview.spec.js b/test/spec/insertPreview.spec.js
new file mode 100644
index 00000000..db1fa16f
--- /dev/null
+++ b/test/spec/insertPreview.spec.js
@@ -0,0 +1,26 @@
+describe('Preview UI HTML', function() {
+
+  var InsertPreview = require('../../examples/lib/insertPreview')
+  var sequencer = require('../../src/ImageSequencer')()
+  var insertPreview;
+  var options = { brightness: 50 }
+
+  beforeEach(()=>{
+    insertPreview = InsertPreview
+
+    spyOn(insertPreview,'generatePreview')
+    spyOn(insertPreview,'updatePreviews')
+
+    insertPreview.generatePreview('brightness',options,'src','selector')
+    insertPreview.updatePreviews('src','selector')
+  })
+
+  it('generate preview ui', function() {
+    expect(insertPreview.generatePreview).toHaveBeenCalledWith('brightness',options,'src','selector')
+  })
+
+  it('update preview ui', function() {
+    expect(insertPreview.updatePreviews).toHaveBeenCalledWith('src','selector')
+  })
+
+})
\ No newline at end of file
diff --git a/test/spec/intermediateHtmlStepUi.spec.js b/test/spec/intermediateHtmlStepUi.spec.js
new file mode 100644
index 00000000..c27c3a45
--- /dev/null
+++ b/test/spec/intermediateHtmlStepUi.spec.js
@@ -0,0 +1,19 @@
+describe('Intermediate step HTML', function() {
+
+  var IntermediateHtmlStepUi = require('../../examples/lib/intermediateHtmlStepUi')
+  var sequencer = require('../../src/ImageSequencer')()
+  var intermediateHtmlStepUi;
+
+  beforeEach(()=>{
+    intermediateHtmlStepUi = new IntermediateHtmlStepUi(sequencer)
+
+    spyOn(intermediateHtmlStepUi,'insertStep')
+
+    intermediateHtmlStepUi.insertStep()
+  })
+
+  it('insert step ui', function() {
+    expect(intermediateHtmlStepUi.insertStep).toHaveBeenCalled()
+  })
+
+})
\ No newline at end of file
diff --git a/test/spec/support/jasmine.json b/test/spec/support/jasmine.json
new file mode 100644
index 00000000..db746ebc
--- /dev/null
+++ b/test/spec/support/jasmine.json
@@ -0,0 +1,11 @@
+{
+  "spec_dir": "test/spec",
+  "spec_files": [
+    "**/*.[sS]pec.js"
+  ],
+  "helpers": [
+    "helpers/**/*.js"
+  ],
+  "stopSpecOnExpectationFailure": false,
+  "random": false
+}
diff --git a/test/spec/urlHash.spec.js b/test/spec/urlHash.spec.js
new file mode 100644
index 00000000..f3f21b67
--- /dev/null
+++ b/test/spec/urlHash.spec.js
@@ -0,0 +1,40 @@
+describe('URL manipulation methods', function() {
+
+  var UrlHash = require('../../examples/lib/urlHash')
+  var urlHash;
+  var params = {
+    module: 'brightness',
+    brightness: 50
+  }
+
+  beforeEach(()=>{
+    urlHash = UrlHash
+
+    spyOn(urlHash,'getUrlHashParameters')
+    spyOn(urlHash,'getUrlHashParameter')
+    spyOn(urlHash,'setUrlHashParameters')
+    spyOn(urlHash,'setUrlHashParameter')
+
+    urlHash.getUrlHashParameters()
+    urlHash.getUrlHashParameter('module')
+    urlHash.setUrlHashParameters(params)
+    urlHash.setUrlHashParameter('module','brightness')
+  })
+
+  it('gets url hash params from window hash', function() {
+    expect(urlHash.getUrlHashParameters).toHaveBeenCalled()
+  })
+
+  it('gets url hash param from params object', function() {
+    expect(urlHash.getUrlHashParameter).toHaveBeenCalledWith('module')
+  })
+
+  it('accepts param object and sets url hash params', function() {
+    expect(urlHash.setUrlHashParameters).toHaveBeenCalledWith(params)
+  })
+
+  it('accepts param key-value pair and sets url hash params', function() {
+    expect(urlHash.setUrlHashParameter).toHaveBeenCalledWith('module','brightness')
+  })
+
+})
\ No newline at end of file