Just a commit

java/current

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-hamming
+robot-name

java/robot-name/README.md

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+# Robot Name
+
+Write a program that manages robot factory settings.
+
+When robots come off the factory floor, they have no name.
+
+The first time you boot them up, a random name is generated in the format
+of two uppercase letters followed by three digits, such as RX837 or BC811.
+
+Every once in a while we need to reset a robot to its factory settings,
+which means that their name gets wiped. The next time you ask, it will
+respond with a new random name.
+
+The names must be random: they should not follow a predictable sequence.
+Random names means a risk of collisions. Your solution should not allow
+the use of the same name twice when avoidable. In some exercism language
+tracks there are tests to ensure that the same name is never used twice.
+
+## Source
+
+A debugging session with Paul Blackwell at gSchool. [http://gschool.it](http://gschool.it)
+
+## Submitting Incomplete Problems
+It's possible to submit an incomplete solution so you can see how others have completed the exercise.
+

java/robot-name/build.gradle

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+apply plugin: "java"
+apply plugin: "eclipse"
+apply plugin: "idea"
+
+repositories {
+  mavenCentral()
+}
+
+dependencies {
+  testCompile "junit:junit:4.10"
+}
+

java/robot-name/src/test/java/RobotTest.java

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+import org.junit.Test;
+
+import static org.hamcrest.CoreMatchers.equalTo;
+import static org.hamcrest.core.Is.is;
+import static org.hamcrest.core.IsNot.not;
+import static org.junit.Assert.assertThat;
+
+public class RobotTest {
+
+    private static final String EXPECTED_ROBOT_NAME_PATTERN = "[A-Z]{2}\\d{3}";
+    private final Robot robot = new Robot();
+
+    @Test
+    public void hasName() {
+        assertIsValidName(robot.getName());
+    }
+
+    @Test
+    public void differentRobotsHaveDifferentNames() {
+        assertThat(robot.getName(), not(equalTo(new Robot().getName())));
+    }
+
+    @Test
+    public void resetName() {
+        final String name = robot.getName();
+        robot.reset();
+        final String name2 = robot.getName();
+        assertThat(name, not(equalTo(name2)));
+        assertIsValidName(name2);
+    }
+
+    private static void assertIsValidName(String name) {
+        assertThat(name.matches(EXPECTED_ROBOT_NAME_PATTERN), is(true));
+    }
+}