tws-stack · i5possible · Dec 13, 2016 · Dec 13, 2016 · Dec 13, 2016 · Dec 13, 2016
diff --git a/.idea/compiler.xml b/.idea/compiler.xml
diff --git a/.idea/copyright/profiles_settings.xml b/.idea/copyright/profiles_settings.xml
diff --git a/.idea/misc.xml b/.idea/misc.xml
diff --git a/.idea/modules.xml b/.idea/modules.xml
diff --git a/src/main/java/com/thoughtworks/core/Convert.java b/src/main/java/com/thoughtworks/core/Convert.java
@@ -0,0 +1,29 @@
+package com.thoughtworks.core;
+
+/**
+ * Created by hliang on 14/12/2016.
+ */
+public class Convert {
+    private Core core;
+
+    public Convert(Core p0) {
+        core = p0;
+    }
+
+    public String[] convertToNumberDescriptions(int max) {
+        String[] res = new String[max];
+        for (int i = 0; i < max; i++) {
+            res[i] = core.convertToNumberDescription(i+1);
+        }
+        return  res;
+    }
+
+    public static void main(String[] args) {
+        Core core = new Core();
+        Convert convert = new Convert(core);
+        String[] numberDescriptions = convert.convertToNumberDescriptions(100);
+        for (String numberDescription : numberDescriptions) {
+            System.out.println(numberDescription);
+        }
+    }
+}
diff --git a/src/main/java/com/thoughtworks/core/Core.java b/src/main/java/com/thoughtworks/core/Core.java
@@ -0,0 +1,17 @@
+package com.thoughtworks.core;
+
+/**
+ * Created by hliang on 13/12/2016.
+ */
+public class Core {
+    public String convertToNumberDescription(int number) {
+        if (number % 3 == 0 && number % 5 == 0) {
+            return "FizzBuzz";
+        } else if (number % 3 == 0) {
+            return "Fizz";
+        } else if (number % 5 == 0) {
+            return "Buzz";
+        }
+        return ""+number;
+    }
+}
diff --git a/src/test/java/com/thoughtworks/core/ConvertTest.java b/src/test/java/com/thoughtworks/core/ConvertTest.java
@@ -0,0 +1,47 @@
+package com.thoughtworks.core;
+
+import org.junit.Test;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+/**
+ * Created by hliang on 14/12/2016.
+ */
+public class ConvertTest {
+    @Test
+    public void should_return_array0_given_0 () {
+        //given
+        Core core = new Core();
+        Convert convert = new Convert(core);
+        //when
+        String[] result = convert.convertToNumberDescriptions(0);
+        //then
+        assertThat(result).isEqualTo(new String[0]);
+    }
+    @Test
+    public void should_return_array1_given_1 () {
+        //given
+        Core core = mock(Core.class);
+        Convert convert = new Convert(core);
+        when(core.convertToNumberDescription(1)).thenReturn("1");
+        //when
+        String[] result = convert.convertToNumberDescriptions(1);
+        //then
+        assertThat(result).isEqualTo(new String[]{"1"});
+    }
+    @Test
+    public void should_return_array3_given_3 () {
+        //given
+        Core core = mock(Core.class);
+        Convert convert = new Convert(core);
+        when(core.convertToNumberDescription(1)).thenReturn("1");
+        when(core.convertToNumberDescription(2)).thenReturn("2");
+        when(core.convertToNumberDescription(3)).thenReturn("Fizz");
+        //when
+        String[] result = convert.convertToNumberDescriptions(3);
+        //then
+        assertThat(result).isEqualTo(new String[]{"1","2","Fizz"});
+    }
+}
diff --git a/src/test/java/com/thoughtworks/core/CoreTest.java b/src/test/java/com/thoughtworks/core/CoreTest.java
@@ -0,0 +1,55 @@
+package com.thoughtworks.core;
+import org.junit.Test;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Created by hliang on 13/12/2016.
+ */
+public class CoreTest {
+    @Test
+    public void should_return_1_given_1 () {
+        //given
+        int number = 1;
+        //when
+        String actualValue = new Core().convertToNumberDescription(number);
+        //then
+        assertThat(actualValue).isEqualTo("1");
+    }
+    @Test
+    public void should_return_Fizz_given_3 () {
+        //given
+        int number = 3;
+        //when
+        String actualValue = new Core().convertToNumberDescription(number);
+        //then
+        assertThat(actualValue).isEqualTo("Fizz");
+    }
+    @Test
+    public void should_return_Buzz_given_5 () {
+        //given
+        int number = 5;
+        //when
+        String actualValue = new Core().convertToNumberDescription(number);
+        //then
+        assertThat(actualValue).isEqualTo("Buzz");
+    }
+    @Test
+    public void should_return_FizzBuzz_given_15 () {
+        //given
+        int number = 15;
+        //when
+        String actualValue = new Core().convertToNumberDescription(number);
+        //then
+        assertThat(actualValue).isEqualTo("FizzBuzz");
+    }
+    @Test
+    public void should_return_16_given_16 () {
+        //given
+        int number = 16;
+        //when
+        String actualValue = new Core().convertToNumberDescription(number);
+        //then
+        assertThat(actualValue).isEqualTo("16");
+    }
+}