added code coverage badge

README.md

@@ -4,4 +4,5 @@
 ![Static Badge](https://img.shields.io/badge/language-python-3670A0?style=for-the-badge&logo=python) ![Static Badge](https://img.shields.io/badge/Platform-Linux-FCC624?style=for-the-badge&logo=linux&logoColor=black)
 <a href="https://www.gnu.org/licenses/gpl-3.0"><img alt="License: GPL v3" src="https://img.shields.io/badge/License-GPLv3-blue.svg" height="30px"></a>
 
-[![Python application](https://github.com/TeamBenign/HW1/actions/workflows/python-app.yml/badge.svg)](https://github.com/TeamBenign/HW1/actions/workflows/python-app.yml)
+[![Python application](https://github.com/TeamBenign/HW1/actions/workflows/python-app.yml/badge.svg)](https://github.com/TeamBenign/HW1/actions/workflows/python-app.yml)
+[![Coverage Status](coverage-badge.svg?dummy=8484744)](htmlcov/index.html)

coverage.xml

@@ -0,0 +1,44 @@
+<?xml version="1.0" ?>
+<coverage version="7.6.1" timestamp="1724985917202" lines-valid="20" lines-covered="20" line-rate="1" branches-covered="0" branches-valid="0" branch-rate="0" complexity="0">
+	<!-- Generated by coverage.py: https://coverage.readthedocs.io/en/7.6.1 -->
+	<!-- Based on https://raw.githubusercontent.com/cobertura/web/master/htdocs/xml/coverage-04.dtd -->
+	<sources>
+		<source>/workspaces/HW1</source>
+	</sources>
+	<packages>
+		<package name="." line-rate="1" branch-rate="0" complexity="0">
+			<classes>
+				<class name="calculator.py" filename="calculator.py" complexity="0" line-rate="1" branch-rate="0">
+					<methods/>
+					<lines>
+						<line number="1" hits="1"/>
+						<line number="2" hits="1"/>
+						<line number="3" hits="1"/>
+						<line number="4" hits="1"/>
+						<line number="5" hits="1"/>
+						<line number="6" hits="1"/>
+						<line number="7" hits="1"/>
+						<line number="8" hits="1"/>
+						<line number="9" hits="1"/>
+						<line number="10" hits="1"/>
+					</lines>
+				</class>
+				<class name="calculator_test.py" filename="calculator_test.py" complexity="0" line-rate="1" branch-rate="0">
+					<methods/>
+					<lines>
+						<line number="1" hits="1"/>
+						<line number="2" hits="1"/>
+						<line number="3" hits="1"/>
+						<line number="7" hits="1"/>
+						<line number="11" hits="1"/>
+						<line number="12" hits="1"/>
+						<line number="13" hits="1"/>
+						<line number="15" hits="1"/>
+						<line number="16" hits="1"/>
+						<line number="17" hits="1"/>
+					</lines>
+				</class>
+			</classes>
+		</package>
+	</packages>
+</coverage>