diff --git a/.DS_Store b/.DS_Store
new file mode 100644
index 0000000000..a28f53a113
Binary files /dev/null and b/.DS_Store differ
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
new file mode 100644
index 0000000000..3a2bcfdf55
--- /dev/null
+++ b/.github/workflows/main.yml
@@ -0,0 +1,45 @@
+
+name: CI/CD
+
+on:
+  push:
+    branches:
+      - cicd_409308
+  pull_request:
+    branches:
+      - cicd_409308
+
+jobs:
+  test-on-linux:
+    runs-on: ubuntu-latest
+    steps:
+      - name: repository clone
+        uses: actions/checkout@v3
+      - name: Set up Python 3.10
+        uses: actions/setup-python@v3
+        with:
+          python-version: "3.10"
+          architecture: x64
+      - name: Run tests
+        run: |
+          python -m unittest "testcircle.py"
+          python -m unittest "testrectangle.py"
+          python -m unittest "testsquare.py"
+          python -m unittest "testtriangle.py"
+          
+  test-on-windows:
+    runs-on: windows-latest
+    steps:
+      - name: repository clone
+        uses: actions/checkout@v3
+      - name: Set up Python 3.10
+        uses: actions/setup-python@v3
+        with:
+          python-version: "3.10"
+          architecture: x64
+      - name: Run tests
+        run: |
+          python -m unittest "testcircle.py"
+          python -m unittest "testrectangle.py"
+          python -m unittest "testsquare.py"
+          python -m unittest "testtriangle.py"
diff --git a/docs/.idea/.gitignore b/docs/.idea/.gitignore
new file mode 100644
index 0000000000..13566b81b0
--- /dev/null
+++ b/docs/.idea/.gitignore
@@ -0,0 +1,8 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
diff --git a/docs/.idea/docs.iml b/docs/.idea/docs.iml
new file mode 100644
index 0000000000..d0876a78d0
--- /dev/null
+++ b/docs/.idea/docs.iml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="PYTHON_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/docs/.idea/inspectionProfiles/profiles_settings.xml b/docs/.idea/inspectionProfiles/profiles_settings.xml
new file mode 100644
index 0000000000..105ce2da2d
--- /dev/null
+++ b/docs/.idea/inspectionProfiles/profiles_settings.xml
@@ -0,0 +1,6 @@
+<component name="InspectionProjectProfileManager">
+  <settings>
+    <option name="USE_PROJECT_PROFILE" value="false" />
+    <version value="1.0" />
+  </settings>
+</component>
\ No newline at end of file
diff --git a/docs/.idea/modules.xml b/docs/.idea/modules.xml
new file mode 100644
index 0000000000..6049cfe013
--- /dev/null
+++ b/docs/.idea/modules.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/docs.iml" filepath="$PROJECT_DIR$/.idea/docs.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/docs/.idea/vcs.xml b/docs/.idea/vcs.xml
new file mode 100644
index 0000000000..6c0b863585
--- /dev/null
+++ b/docs/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/.." vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/docs/README.md b/docs/README.md
index 63f8727939..d1d8a1463f 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -7,4 +7,10 @@
 ## Perimeter
 - Circle: P = 2πR
 - Rectangle: P = 2a + 2b
-- Square: P = 4a
\ No newline at end of file
+- Square: P = 4a
+
+---
+
+##Results:
+- Successful tests: 4
+- Unsuccessful test: 8
\ No newline at end of file
diff --git a/rectangle.py b/rectangle.py
new file mode 100644
index 0000000000..daa623b2c4
--- /dev/null
+++ b/rectangle.py
@@ -0,0 +1,5 @@
+def area(a, b): 
+    return a * b 
+
+def perimeter(a, b): 
+    return 2*(a + b) 
\ No newline at end of file
diff --git a/testcircle.py b/testcircle.py
new file mode 100644
index 0000000000..24b16a5446
--- /dev/null
+++ b/testcircle.py
@@ -0,0 +1,30 @@
+import unittest
+from circle import area
+from circle import perimeter
+from math import pi
+
+
+class CircleTestCase(unittest.TestCase):
+    def test_int(self):
+        self.assertAlmostEqual(area(3),28.26, delta=0.01)
+    def test_int(self):
+        self.assertAlmostEqual(perimeter(3),18.84, delta=0.01)
+
+    def test_negativenumbers(self):
+        with self.assertRaises(ValueError):
+            (area(-3))
+    def test_negativenumbers(self):
+        with self.assertRaises(ValueError):
+            (perimeter(-3))
+
+
+    def test_str(self):
+        with self.assertRaises(TypeError):
+            (area('abc'))
+
+    def test_str(self):
+        with self.assertRaises(TypeError):
+            (perimeter('abc'))
+
+if __name__ == '__main__':
+    unittest.main()
\ No newline at end of file
diff --git a/testrectangle.py b/testrectangle.py
new file mode 100644
index 0000000000..0bfc8d4825
--- /dev/null
+++ b/testrectangle.py
@@ -0,0 +1,26 @@
+import unittest
+from rectangle import area
+from rectangle import perimeter
+class RectangleTestCase(unittest.TestCase):
+    def test_int(self):
+        self.assertEqual(area(5,3),15)
+    def test_int(self):
+        self.assertEqual(perimeter(5,3),16)
+
+    def test_negativenumbers(self):
+        with self.assertRaises(ValueError):
+            (area(-5, 3))
+    def test_negativenumbers(self):
+        with self.assertRaises(ValueError):
+            (perimeter(-5, 3))
+
+
+    def test_str(self):
+        with self.assertRaises(TypeError):
+            (area('bcd','bcd'))
+    def test_str(self):
+        with self.assertRaises(TypeError):
+            (perimeter('bcd', 'bcd'))
+
+if __name__ == '__main__':
+    unittest.main()
\ No newline at end of file
diff --git a/testsquare.py b/testsquare.py
new file mode 100644
index 0000000000..c5814b4369
--- /dev/null
+++ b/testsquare.py
@@ -0,0 +1,25 @@
+import unittest
+from square import area
+from square import perimeter
+class SquareTestCase(unittest.TestCase):
+    def test_int(self):
+        self.assertEqual(area(7),7*7)
+    def test_int(self):
+        self.assertEqual(perimeter(7),4*7)
+
+    def test_negativenumbers(self):
+        with self.assertRaises(ValueError):
+            (area(-7))
+
+    def test_negativenumbers(self):
+        with self.assertRaises(ValueError):
+            (perimeter(-7))
+    def test_str(self):
+        with self.assertRaises(TypeError):
+            (area('cde','cde'))
+
+    def test_str(self):
+        with self.assertRaises(TypeError):
+            (perimeter('cde','cde'))
+if __name__ == '__main__':
+    unittest.main()
\ No newline at end of file
diff --git a/testtriangle.py b/testtriangle.py
new file mode 100644
index 0000000000..09d126f7f3
--- /dev/null
+++ b/testtriangle.py
@@ -0,0 +1,39 @@
+import unittest
+from triangle import area
+from triangle import perimeter
+class TriangleTestCase(unittest.TestCase):
+    def test_int(self):
+        a = 9
+        b = 10
+        c = 11
+        h = 13
+        self.assertEqual(area(a,h),a*h/2)
+    def test_int(self):
+        a = 9
+        b = 10
+        c = 11
+        h = 13
+        self.assertEqual(perimeter(a,b,c),a+b+c)
+
+    def test_negativenumbers(self):
+        a = -9
+        b = 10
+        c = -11
+        h = 13
+        with self.assertRaises(ValueError):
+            (area(a,h))
+
+    def test_negativenumbers(self):
+        a = -9
+        b = 10
+        c = -11
+        h = 13
+        with self.assertRaises(ValueError):
+            (perimeter(a, b, c))
+
+
+
+
+
+if __name__ == '__main__':
+    unittest.main()
diff --git a/triangle.py b/triangle.py
new file mode 100644
index 0000000000..c2dc5c91b3
--- /dev/null
+++ b/triangle.py
@@ -0,0 +1,7 @@
+
+def area(a, h): 
+    return a * h / 2 
+
+
+def perimeter(a, b, c): 
+    return a + b + c