diff --git a/mini_tester.rb b/mini_tester.rb
index cf2c7c8..12b5e6a 100644
--- a/mini_tester.rb
+++ b/mini_tester.rb
@@ -6,6 +6,6 @@
 
 class MiniTester < Minitest::Test
   def test_1
-    assert true
+    assert false
   end
 end
\ No newline at end of file
diff --git a/spec/dummy_spec.rb b/spec/dummy_spec.rb
index d67892e..a683a2b 100644
--- a/spec/dummy_spec.rb
+++ b/spec/dummy_spec.rb
@@ -3,24 +3,24 @@
 
 describe 'My behaviour' do
   it 'should do something' do
-    expect(4).to eql(4)
+    expect(4).to eql(5)
     true.should == true
   end
 
   it 'should do something else as well' do
-    expect(4).to eql(4)
+    expect(4).to eql(5)
     true.should == true
   end
 end
 
 describe 'different behaviour' do
   it 'should do something' do
-    expect(4).to eql(4)
+    expect(4).to eql(2)
     true.should == true
   end
 
   it 'should do something else as well' do
-    expect(4).to eql(4)
+    expect(4).to eql(1)
     true.should == true
   end
 end
\ No newline at end of file
diff --git a/spec/other_dummy_spec.rb b/spec/other_dummy_spec.rb
index d67892e..0e14d07 100644
--- a/spec/other_dummy_spec.rb
+++ b/spec/other_dummy_spec.rb
@@ -4,11 +4,11 @@
 describe 'My behaviour' do
   it 'should do something' do
     expect(4).to eql(4)
-    true.should == true
+    true.should == false
   end
 
   it 'should do something else as well' do
-    expect(4).to eql(4)
+    expect(2).to eql(4)
     true.should == true
   end
 end
@@ -16,11 +16,11 @@
 describe 'different behaviour' do
   it 'should do something' do
     expect(4).to eql(4)
-    true.should == true
+    true.should == false
   end
 
   it 'should do something else as well' do
-    expect(4).to eql(4)
+    expect(1).to eql(4)
     true.should == true
   end
 end
\ No newline at end of file
diff --git a/test_unit.rb b/test_unit.rb
index ee8edaf..72549fd 100644
--- a/test_unit.rb
+++ b/test_unit.rb
@@ -19,11 +19,11 @@ def teardown
   def test_fail
     assert_equal(4, 4);
     assert_equal(4, 4);
-    #fail('Not implemented')
+    fail('Not implemented')
   end
 
   def test_foo
-    assert_equal(4, 4);
+    assert_equal(4, 3);
     assert_equal(2, 2)
   end
 end
@@ -32,7 +32,7 @@ class TestUnit2 < Test::Unit::TestCase
 
   # Fake test
   def test_x
-    assert_equal(3,3)
+    assert_equal(2,3)
   end
 
 end
\ No newline at end of file
diff --git a/test_unit2.rb b/test_unit2.rb
index 9c051ae..08bb38f 100644
--- a/test_unit2.rb
+++ b/test_unit2.rb
@@ -18,11 +18,11 @@ def teardown
   # Fake test
   def test_fail
 
-   #fail('Not implemented')
+   fail('Not implemented')
   end
 
   def test_foo
-    assert_equal(2, 2)
+    assert_equal(2, 3)
   end
 end
 
@@ -30,7 +30,7 @@ class TestUnit4 < Test::Unit::TestCase
 
   # Fake test
   def test_x
-    assert_equal(3,3)
+    assert_equal(1,3)
   end
 
 end
\ No newline at end of file