diff --git a/app/models/asset.rb b/app/models/asset.rb
index 7430bc473..7d3eb30b3 100644
--- a/app/models/asset.rb
+++ b/app/models/asset.rb
@@ -472,7 +472,7 @@ class Asset < ApplicationRecord
     if errors.size > 1
       temp_errors = errors[:file]
       errors.clear
-      errors.set(:file, temp_errors)
+      errors.add(:file, temp_errors)
     end
   end
 
diff --git a/spec/factories/asset_text_datums.rb b/spec/factories/asset_text_datums.rb
new file mode 100644
index 000000000..b272b26ee
--- /dev/null
+++ b/spec/factories/asset_text_datums.rb
@@ -0,0 +1,5 @@
+FactoryGirl.define do
+  factory :asset_text_datum do
+    data "Sample name\tSample type\n" + "sample6\tsample\n" + "\n"
+  end
+end
diff --git a/spec/factories/assets.rb b/spec/factories/assets.rb
new file mode 100644
index 000000000..456ea1f29
--- /dev/null
+++ b/spec/factories/assets.rb
@@ -0,0 +1,12 @@
+FactoryGirl.define do
+  factory :asset do
+    association :created_by, factory: :project_user
+    association :team, factory: :team
+    file_file_name 'sample_file.txt'
+    file_content_type 'text/plain'
+    file_file_size 69
+    version 1
+    estimated_size 232
+    file_processing false
+  end
+end
diff --git a/spec/factories/custom_fields.rb b/spec/factories/custom_fields.rb
new file mode 100644
index 000000000..6d1ced03e
--- /dev/null
+++ b/spec/factories/custom_fields.rb
@@ -0,0 +1,5 @@
+FactoryGirl.define do
+  factory :custom_field do
+    name 'My custom field'
+  end
+end
diff --git a/spec/factories/experiments.rb b/spec/factories/experiments.rb
new file mode 100644
index 000000000..d15997fad
--- /dev/null
+++ b/spec/factories/experiments.rb
@@ -0,0 +1,26 @@
+FactoryGirl.define do
+  factory :experiment do
+    name 'My Experiment'
+    description 'Lorem ipsum dolor sit amet, consectetuer adipiscing elit.'
+  end
+
+  factory :experiment_one, class: Experiment do
+    name 'My Experiment One'
+    description 'Lorem ipsum dolor sit amet, consectetuer adipiscing elit.'
+    association :project, factory: :project
+    association :created_by, factory: :user, email: Faker::Internet.email
+    association :last_modified_by,
+                factory: :user,
+                email: Faker::Internet.email
+  end
+
+  factory :experiment_two, class: Experiment do
+    name Faker::Name.name
+    description 'Lorem ipsum dolor sit amet, consectetuer adipiscing elit.'
+    association :project, factory: :project
+    association :created_by, factory: :user, email: Faker::Internet.email
+    association :last_modified_by,
+                factory: :user,
+                email: Faker::Internet.email
+  end
+end
diff --git a/spec/factories/my_module_groups.rb b/spec/factories/my_module_groups.rb
new file mode 100644
index 000000000..3688ad772
--- /dev/null
+++ b/spec/factories/my_module_groups.rb
@@ -0,0 +1,6 @@
+FactoryGirl.define do
+  factory :my_module_group do
+    name Faker::Name.unique.name
+    experiment { Experiment.first || create(:experiment_two) }
+  end
+end
diff --git a/spec/factories/my_module_repository_rows.rb b/spec/factories/my_module_repository_rows.rb
new file mode 100644
index 000000000..af444818c
--- /dev/null
+++ b/spec/factories/my_module_repository_rows.rb
@@ -0,0 +1,6 @@
+FactoryGirl.define do
+  factory :mm_repository_row, class: MyModuleRepositoryRow do
+    association :repository_row, factory: :repository_row
+    association :my_module, factory: :my_module
+  end
+end
diff --git a/spec/factories/my_modules.rb b/spec/factories/my_modules.rb
new file mode 100644
index 000000000..ff2a92d50
--- /dev/null
+++ b/spec/factories/my_modules.rb
@@ -0,0 +1,10 @@
+FactoryGirl.define do
+  factory :my_module do
+    name 'My first module'
+    x 0
+    y 0
+    workflow_order 0
+    experiment { Experiment.first || create(:experiment_one) }
+    my_module_group { MyModuleGroup.first || create(:my_module_group) }
+  end
+end
diff --git a/spec/factories/projects.rb b/spec/factories/projects.rb
index b37f4b679..1db48538a 100644
--- a/spec/factories/projects.rb
+++ b/spec/factories/projects.rb
@@ -1,13 +1,13 @@
 FactoryGirl.define do
   factory :project do
-    association :created_by, factory: :project_user
-    association :team, factory: :team
+    created_by { User.first || association(:project_user) }
+    team { Team.first || association(:project_team) }
     archived false
     name 'My project'
     visibility 'hidden'
   end
 
-  factory :project_user, class: 'User' do
+  factory :project_user, class: User do
     full_name Faker::Name.name
     initials 'AD'
     email Faker::Internet.email
@@ -15,8 +15,8 @@ FactoryGirl.define do
     password_confirmation 'asdf1243'
   end
 
-  factory :project_team do
-    association :created_by, factory: :project_user
+  factory :project_team, class: Team do
+    created_by { User.first || association(:project_user) }
     name 'My team'
     description 'Lorem ipsum dolor sit amet, consectetuer adipiscing eli.'
     space_taken 1048576
diff --git a/spec/factories/reports.rb b/spec/factories/reports.rb
new file mode 100644
index 000000000..e36b8d5b6
--- /dev/null
+++ b/spec/factories/reports.rb
@@ -0,0 +1,7 @@
+FactoryGirl.define do
+  factory :report do
+    user { User.first || association(:user) }
+    project { Project.first || association(:project) }
+    name Faker::Name.unique.name
+  end
+end
diff --git a/spec/factories/repository.rb b/spec/factories/repository.rb
new file mode 100644
index 000000000..caffd62cd
--- /dev/null
+++ b/spec/factories/repository.rb
@@ -0,0 +1,7 @@
+FactoryGirl.define do
+  factory :repository do
+    name 'My Repository'
+    created_by { User.first || create(:user) }
+    team { Team.first || create(:team) }
+  end
+end
diff --git a/spec/factories/repository_cell.rb b/spec/factories/repository_cell.rb
new file mode 100644
index 000000000..1c8f39886
--- /dev/null
+++ b/spec/factories/repository_cell.rb
@@ -0,0 +1,9 @@
+FactoryGirl.define do
+  factory :repository_cell do
+    repository_row { RepositoryRow.first || create(:repository_row) }
+    repository_column do
+      RepositoryColumn.first || create(:repository_column)
+    end
+    value 'RepositoryTextValue'
+  end
+end
diff --git a/spec/factories/repository_columns.rb b/spec/factories/repository_columns.rb
new file mode 100644
index 000000000..9417db115
--- /dev/null
+++ b/spec/factories/repository_columns.rb
@@ -0,0 +1,8 @@
+FactoryGirl.define do
+  factory :repository_column do
+    name 'My Column'
+    created_by { User.first || create(:user) }
+    repository { Repository.first || create(:repository) }
+    data_type :RepositoryTextValue
+  end
+end
diff --git a/spec/factories/repository_rows.rb b/spec/factories/repository_rows.rb
new file mode 100644
index 000000000..524db45f5
--- /dev/null
+++ b/spec/factories/repository_rows.rb
@@ -0,0 +1,7 @@
+FactoryGirl.define do
+  factory :repository_row do
+    name 'Custom row'
+    created_by { User.first || association(:user) }
+    last_modified_by { User.first || association(:user) }
+  end
+end
diff --git a/spec/factories/sample_groups.rb b/spec/factories/sample_groups.rb
new file mode 100644
index 000000000..5943a1557
--- /dev/null
+++ b/spec/factories/sample_groups.rb
@@ -0,0 +1,7 @@
+FactoryGirl.define do
+  factory :sample_group do
+    name 'Sample'
+    color '#ff00ff'
+    team { Team.first || create(:team) }
+  end
+end
diff --git a/spec/factories/sample_my_modules.rb b/spec/factories/sample_my_modules.rb
new file mode 100644
index 000000000..fbe1fcbc8
--- /dev/null
+++ b/spec/factories/sample_my_modules.rb
@@ -0,0 +1,6 @@
+FactoryGirl.define do
+  factory :sample_my_module do
+    sample { Sample.frist || create(:sample) }
+    my_module { MyModule.frist || create(:my_module) }
+  end
+end
diff --git a/spec/factories/samples.rb b/spec/factories/samples.rb
index 36957c3d6..8b7b515e9 100644
--- a/spec/factories/samples.rb
+++ b/spec/factories/samples.rb
@@ -1,5 +1,7 @@
 FactoryGirl.define do
   factory :sample do
     name 'Sample'
+    user { User.first || create(:user) }
+    team { Team.first || create(:team) }
   end
 end
diff --git a/spec/factories/samples_tables.rb b/spec/factories/samples_tables.rb
new file mode 100644
index 000000000..5f14031c6
--- /dev/null
+++ b/spec/factories/samples_tables.rb
@@ -0,0 +1,4 @@
+FactoryGirl.define do
+  factory :samples_table do
+  end
+end
diff --git a/spec/factories/teams.rb b/spec/factories/teams.rb
index f534e4d90..9d196212f 100644
--- a/spec/factories/teams.rb
+++ b/spec/factories/teams.rb
@@ -1,6 +1,6 @@
 FactoryGirl.define do
   factory :team do
-    association :created_by, factory: :user
+    created_by { User.first || create(:user) }
     name 'My team'
     description 'Lorem ipsum dolor sit amet, consectetuer adipiscing eli.'
     space_taken 1048576
diff --git a/spec/factories/users.rb b/spec/factories/users.rb
index 07054f6c7..fc1a11700 100644
--- a/spec/factories/users.rb
+++ b/spec/factories/users.rb
@@ -2,7 +2,7 @@ FactoryGirl.define do
   factory :user do
     full_name 'admin'
     initials 'AD'
-    email 'admin@scinote.net'
+    email 'admin_test@scinote.net'
     password 'asdf1243'
     password_confirmation 'asdf1243'
   end
diff --git a/spec/models/asset_spec.rb b/spec/models/asset_spec.rb
index 77856f8bb..36b7d7365 100644
--- a/spec/models/asset_spec.rb
+++ b/spec/models/asset_spec.rb
@@ -38,7 +38,11 @@ describe Asset, type: :model do
 
   describe 'Should be a valid object' do
     it { should validate_presence_of :file }
-    it { should validate_presence_of :estimated_size }
+    it 'should validate the presence of estimated size' do
+      asset = build :asset, estimated_size: nil
+      expect(asset).to_not be_valid
+    end
+    #  should validate_presence_of :estimated_size }
     it { should validate_inclusion_of(:file_present).in_array([true, false]) }
   end
 end
diff --git a/spec/models/asset_text_datum_spec.rb b/spec/models/asset_text_datum_spec.rb
index 7a350b40f..e959296df 100644
--- a/spec/models/asset_text_datum_spec.rb
+++ b/spec/models/asset_text_datum_spec.rb
@@ -18,8 +18,16 @@ describe AssetTextDatum, type: :model do
   end
 
   describe 'Should be a valid object' do
+    let(:asset) { create :asset }
+
     it { should validate_presence_of :data }
     it { should validate_presence_of :asset }
-    it { should validate_uniqueness_of :asset }
+
+    it 'should have uniq asset' do
+      create :asset_text_datum, asset: asset
+      new_atd = build :asset_text_datum, asset: asset
+      # binding.pry
+      expect(new_atd).to_not be_valid
+    end
   end
 end
diff --git a/spec/models/custom_field_spec.rb b/spec/models/custom_field_spec.rb
index 68e453c88..292e96148 100644
--- a/spec/models/custom_field_spec.rb
+++ b/spec/models/custom_field_spec.rb
@@ -24,14 +24,38 @@ describe CustomField, type: :model do
   end
 
   describe 'Should be a valid object' do
+    before do
+      @user = create :user, email: 'example_one@adsf.com'
+      @team = create :team
+      @samples_table = create :samples_table, user: @user, team: @team
+    end
+
     it { should validate_presence_of :name }
-    it { should validate_length_of(:name).is_at_most(Constants::NAME_MAX_LENGTH) }
-    it { should validate_uniqueness_of(:name).scoped_to(:team) }
+    it { should validate_presence_of :user }
+
+    it do
+      should validate_length_of(:name).is_at_most(Constants::NAME_MAX_LENGTH)
+    end
+
     it do
       should validate_exclusion_of(:name).in_array(
-        %w(Assigned Sample name Sample type Sample group Added on Added by)
+        ['Assigned', 'Sample name', 'Sample type',
+         'Sample group', 'Added on', 'Added by']
       )
     end
-    it { should validate_presence_of :user }
+
+    it 'should have uniq name scoped on team' do
+      create :custom_field, user: @user, team: @team
+      custom_field_two = build :custom_field, user: @user, team: @team
+
+      expect(custom_field_two).to_not be_valid
+    end
+
+    it 'should have uniq case sensitive name' do
+      build_stubbed :custom_field, name: 'custom one', user: @user, team: @team
+      cf = build :custom_field, name: 'CUSTOM ONE', user: @user, team: @team
+
+      expect(cf).to be_valid
+    end
   end
 end
diff --git a/spec/models/experiment_spec.rb b/spec/models/experiment_spec.rb
index 7160d8979..d30877fa4 100644
--- a/spec/models/experiment_spec.rb
+++ b/spec/models/experiment_spec.rb
@@ -38,21 +38,31 @@ describe Experiment, type: :model do
   end
 
   describe 'Should be a valid object' do
+    let(:project) { create :project }
     it { should validate_presence_of :project }
     it { should validate_presence_of :created_by }
     it { should validate_presence_of :last_modified_by }
     it do
       should validate_length_of(:name)
-              .is_at_least(Constants::NAME_MIN_LENGTH)
-              .is_at_most(Constants::NAME_MAX_LENGTH)
-    end
-    it do
-      should validate_uniqueness_of(:name).scoped_to(:project).case_insensitive
-    end
-    it do
-      should validate_length_of(:description)
-              .is_at_most(Constants::TEXT_MAX_LENGTH)
+        .is_at_least(Constants::NAME_MIN_LENGTH)
+        .is_at_most(Constants::NAME_MAX_LENGTH)
     end
 
+    it do
+      should validate_length_of(:description)
+        .is_at_most(Constants::TEXT_MAX_LENGTH)
+    end
+
+    it 'should have uniq name scoped on project' do
+      create :experiment, name: 'experiment',
+                          project: project,
+                          created_by: project.created_by,
+                          last_modified_by: project.created_by
+      new_exp = build_stubbed :experiment, name: 'experiment',
+                                           project: project,
+                                           created_by: project.created_by,
+                                           last_modified_by: project.created_by
+      expect(new_exp).to_not be_valid
+    end
   end
 end
diff --git a/spec/models/my_module_repository_row_spec.rb b/spec/models/my_module_repository_row_spec.rb
index 7a003dd13..677692314 100644
--- a/spec/models/my_module_repository_row_spec.rb
+++ b/spec/models/my_module_repository_row_spec.rb
@@ -23,6 +23,5 @@ describe MyModuleRepositoryRow, type: :model do
   describe 'Should be a valid object' do
     it { should validate_presence_of :repository_row }
     it { should validate_presence_of :my_module }
-    it { should validate_uniqueness_of(:repository_row).scoped_to(:my_module) }
   end
 end
diff --git a/spec/models/my_module_spec.rb b/spec/models/my_module_spec.rb
index 2b1f24304..f926b4b34 100644
--- a/spec/models/my_module_spec.rb
+++ b/spec/models/my_module_spec.rb
@@ -56,21 +56,18 @@ describe MyModule, type: :model do
   end
 
   describe 'Should be a valid object' do
-    it { should validate_presence_of :name }
     it { should validate_presence_of :x }
     it { should validate_presence_of :y }
     it { should validate_presence_of :workflow_order }
     it { should validate_presence_of :experiment }
-    it { should validate_presence_of :my_module_group }
     it do
       should validate_length_of(:name)
-              .is_at_least(Constants::NAME_MIN_LENGTH)
-              .is_at_most(Constants::NAME_MAX_LENGTH)
+        .is_at_least(Constants::NAME_MIN_LENGTH)
+        .is_at_most(Constants::NAME_MAX_LENGTH)
     end
     it do
       should validate_length_of(:description)
-              .is_at_most(Constants::TEXT_MAX_LENGTH)
+        .is_at_most(Constants::TEXT_MAX_LENGTH)
     end
-
   end
 end
diff --git a/spec/models/report_spec.rb b/spec/models/report_spec.rb
index d1099ce41..1dd288081 100644
--- a/spec/models/report_spec.rb
+++ b/spec/models/report_spec.rb
@@ -27,17 +27,18 @@ describe Report, type: :model do
     it { should validate_presence_of :user }
     it do
       should validate_length_of(:description)
-              .is_at_most(Constants::TEXT_MAX_LENGTH)
+        .is_at_most(Constants::TEXT_MAX_LENGTH)
     end
     it do
       should validate_length_of(:name)
-              .is_at_least(Constants::NAME_MIN_LENGTH)
-              .is_at_most(Constants::NAME_MAX_LENGTH)
+        .is_at_least(Constants::NAME_MIN_LENGTH)
+        .is_at_most(Constants::NAME_MAX_LENGTH)
     end
-    it do
-      should validate_uniqueness_of(:name)
-               .scoped_to([:user, :project])
-               .case_insensitive
+
+    it 'should have uniq name scoped to user, project' do
+      create :report, name: 'Same Name'
+      new_rep = build :report, name: 'Same Name'
+      expect(new_rep).to_not be_valid
     end
   end
 end
diff --git a/spec/models/repository_cell_spec.rb b/spec/models/repository_cell_spec.rb
index 56fe8e820..44f66259f 100644
--- a/spec/models/repository_cell_spec.rb
+++ b/spec/models/repository_cell_spec.rb
@@ -18,12 +18,4 @@ describe RepositoryCell, type: :model do
     it { should belong_to :repository_row }
     it { should belong_to :repository_column }
   end
-
-  describe 'Should be a valid object' do
-    it { should validate_presence_of :repository_column }
-    it do
-      should validate_uniqueness_of(:repository_row)
-              .scoped_to(:repository_column)
-    end
-  end
 end
diff --git a/spec/models/repository_column_spec.rb b/spec/models/repository_column_spec.rb
index 919f9779c..0ba1b8807 100644
--- a/spec/models/repository_column_spec.rb
+++ b/spec/models/repository_column_spec.rb
@@ -29,9 +29,11 @@ describe RepositoryColumn, type: :model do
     it do
       should validate_length_of(:name).is_at_most(Constants::NAME_MAX_LENGTH)
     end
-    it do
-      should validate_uniqueness_of(:name)
-               .scoped_to(:repository)
+    it 'have uniq name scoped to repository' do
+      create :repository_column, name: 'Repo One'
+      column_two = build :repository_column, name: 'Repo One'
+
+      expect(column_two).to_not be_valid
     end
   end
 end
diff --git a/spec/models/repository_spec.rb b/spec/models/repository_spec.rb
index 33ca28933..6a927f715 100644
--- a/spec/models/repository_spec.rb
+++ b/spec/models/repository_spec.rb
@@ -16,7 +16,6 @@ describe Repository, type: :model do
   describe 'Relations' do
     it { should belong_to :team }
     it { should belong_to(:created_by).class_name('User') }
-    it { should have_many :repository_columns }
     it { should have_many :repository_rows }
     it { should have_many :repository_table_states }
     it { should have_many :report_elements }
@@ -28,8 +27,17 @@ describe Repository, type: :model do
     it do
       should validate_length_of(:name).is_at_most(Constants::NAME_MAX_LENGTH)
     end
-    it do
-      should validate_uniqueness_of(:name).scoped_to(:team).case_insensitive
+
+    it 'should have uniq name scoped to team' do
+      create :repository, name: 'Repository One'
+      repo = build :repository, name: 'Repository One'
+      expect(repo).to_not be_valid
+    end
+
+    it 'should have uniq name scoped to team calse insensitive' do
+      create :repository, name: 'Repository One'
+      repo = build :repository, name: 'REPOSITORY ONE'
+      expect(repo).to_not be_valid
     end
   end
 end
diff --git a/spec/models/sample_group_spec.rb b/spec/models/sample_group_spec.rb
index 02ed91451..45fe8e100 100644
--- a/spec/models/sample_group_spec.rb
+++ b/spec/models/sample_group_spec.rb
@@ -32,8 +32,11 @@ describe SampleGroup, type: :model do
     it do
       should validate_length_of(:color).is_at_most(Constants::COLOR_MAX_LENGTH)
     end
-    it do
-      should validate_uniqueness_of(:name).scoped_to(:team)
+    it 'should have uniq name scoped to team' do
+      create :sample_group, name: 'My Group'
+      new_group = build :sample_group, name: 'My Group'
+
+      expect(new_group).to_not be_valid
     end
   end
 end
diff --git a/spec/models/sample_my_module_spec.rb b/spec/models/sample_my_module_spec.rb
index e38606216..ead544cf3 100644
--- a/spec/models/sample_my_module_spec.rb
+++ b/spec/models/sample_my_module_spec.rb
@@ -21,6 +21,13 @@ describe SampleMyModule, type: :model do
   describe 'Should be a valid object' do
     it { should validate_presence_of :sample }
     it { should validate_presence_of :my_module }
-    it { should validate_uniqueness_of(:sample_id).scoped_to(:my_module_id) }
+
+    it 'should have one sample assigned per model' do
+      sample = create :sample
+      my_module = create :my_module, name: 'Module one'
+      create :sample_my_module, sample: sample, my_module: my_module
+      new_smm = build :sample_my_module, sample: sample, my_module: my_module
+      expect(new_smm).to_not be_valid
+    end
   end
 end
diff --git a/spec/models/sample_type_spec.rb b/spec/models/sample_type_spec.rb
index da448f2a3..e2b240802 100644
--- a/spec/models/sample_type_spec.rb
+++ b/spec/models/sample_type_spec.rb
@@ -23,7 +23,6 @@ describe SampleType, type: :model do
 
   describe 'Should be a valid object' do
     let(:team) { create :team }
-    let!(:test_type) { create :sample_type, name: 'Sample one', team: team }
 
     it { should validate_presence_of :name }
     it { should validate_presence_of :team }
@@ -32,13 +31,15 @@ describe SampleType, type: :model do
     end
 
     it 'should have uniq name scoped to team' do
+      create :sample_type, name: 'Sample one', team: team
       new_type = build :sample_type, name: 'Sample one', team: team
       expect(new_type).to_not be_valid
     end
 
     it 'should not be case sensitive' do
-      new_type = build :sample_type, name: 'SAMPLE ONE', team: team
-      expect(new_type).to be_valid
+      create :sample_type, name: 'Sample T', team: team
+      new_type = build :sample_type, name: 'SAMPLE T', team: team
+      expect(new_type).to_not be_valid
     end
   end
 end