fizzbuzz

src/main/java/fizzbuzz/FzBase.java

@@ -0,0 +1,23 @@
+package fizzbuzz;
+
+/**
+ * @author [email protected]
+ * @version 1.0
+ * @since 2021/5/4
+ */
+public class FzBase {
+
+    public static final String FIZZ = "fizz";
+    public static final String BUZZ = "buzz";
+
+    public String say(int num) {
+        if (num % 3 == 0 && num % 5 == 0) {
+            return FIZZ + BUZZ;
+        } else if (num % 3 == 0) {
+            return FIZZ;
+        } else if (num % 5 == 0) {
+            return BUZZ;
+        }
+        return String.valueOf(num);
+    }
+}

src/test/java/fizzbuzz/FzBaseTest.java

@@ -0,0 +1,49 @@
+package fizzbuzz;
+
+import org.junit.Test;
+
+import static org.hamcrest.core.Is.is;
+import static org.junit.Assert.assertThat;
+
+/**
+ * @author [email protected]
+ * @version 1.0
+ * @since 2021/5/4
+ */
+public class FzBaseTest {
+    @Test
+    public void test_given_3_then_fizz() {
+        FzBase fz = new FzBase();
+        assertThat(fz.say(3), is("fizz"));
+    }
+
+    @Test
+    public void test_given_5_then_buzz() {
+        FzBase fz = new FzBase();
+        assertThat(fz.say(5), is("buzz"));
+    }
+
+    @Test
+    public void test_given_6_then_fizz() {
+        FzBase fz = new FzBase();
+        assertThat(fz.say(6), is("fizz"));
+    }
+
+    @Test
+    public void test_given_10_then_buzz() {
+        FzBase fz = new FzBase();
+        assertThat(fz.say(10), is("buzz"));
+    }
+
+    @Test
+    public void test_given_15_then_fizzbuzz() {
+        FzBase fz = new FzBase();
+        assertThat(fz.say(15), is("fizzbuzz"));
+    }
+
+    @Test
+    public void test_given_1_then_1() {
+        FzBase fz = new FzBase();
+        assertThat(fz.say(1), is("1"));
+    }
+}