Update tests

Author: thomasrockhu-codecov

.github/workflows/ci-maven.yml

@@ -14,7 +14,5 @@ jobs:
         run: mvn install -DskipTests=true -Dmaven.javadoc.skip=true -B -V
       - name: Test with Maven
         run: mvn -B test --file pom.xml
-      - name: ls
-        run: ls
       - name: Upload coverage to Codecov
         uses: codecov/codecov-action@v3

src/test/java/calculator/CalculatorTest.java

@@ -5,8 +5,10 @@
 import org.junit.Test;
 
 public class CalculatorTest {
+  private static final double DELTA = 0.001;
+
   @Test
   public void testAdd() {
-    assertEquals(new Calculator().add(1, 1), 2);
+    assertEquals(new Calculator().add(1, 1), 2, DELTA);
   }
 }