DATACMNS-384 - Introduced value object for Version.

src/test/java/org/springframework/data/util/VersionUnitTests.java

@@ -0,0 +1,114 @@
+package org.springframework.data.util;
+
+import static org.hamcrest.Matchers.*;
+import static org.junit.Assert.*;
+
+import org.junit.Test;
+
+/**
+ * Unit tests for {@link Version}.
+ * 
+ * @author Oliver Gierke
+ */
+public class VersionUnitTests {
+
+	@Test
+	public void sameVersionsEqualOneDigits() {
+
+		Version first = new Version(6);
+		Version second = new Version(6);
+
+		assertThat(first, is(second));
+		assertThat(second, is(first));
+	}
+
+	@Test
+	public void sameVersionsEqualTwoDigits() {
+
+		Version first = new Version(5, 2);
+		Version second = new Version(5, 2);
+
+		assertThat(first, is(second));
+		assertThat(second, is(first));
+	}
+
+	@Test
+	public void sameVersionsEqualThreeDigits() {
+
+		Version first = new Version(1, 2, 3);
+		Version second = new Version(1, 2, 3);
+
+		assertThat(first, is(second));
+		assertThat(second, is(first));
+	}
+
+	@Test
+	public void sameVersionsEqualFourDigits() {
+
+		Version first = new Version(1, 2, 3, 1000);
+		Version second = new Version(1, 2, 3, 1000);
+
+		assertThat(first, is(second));
+		assertThat(second, is(first));
+	}
+
+	@Test
+	public void parsesVersionCorrectlyOneDigits() {
+
+		Version version = Version.parse("5");
+		assertThat(version, is(new Version(5)));
+	}
+
+	@Test
+	public void parsesVersionCorrectlyTwoDigits() {
+
+		Version version = Version.parse("5.2");
+		assertThat(version, is(new Version(5, 2)));
+	}
+
+	@Test
+	public void parsesVersionCorrectlyThreeDigits() {
+
+		Version version = Version.parse("12.1.3");
+		assertThat(version, is(new Version(12, 1, 3)));
+	}
+
+	@Test
+	public void parsesVersionCorrectlyFourDigits() {
+
+		Version version = Version.parse("12.1.3.1000");
+		assertThat(version, is(new Version(12, 1, 3, 1000)));
+	}
+
+	@Test
+	public void comparesToCorrectly() {
+
+		Version version = new Version(1, 2, 3, 1000);
+		Version nextBuild = new Version(1, 2, 3, 1001);
+		Version nextBugfix = new Version(1, 2, 4);
+		Version nextMinor = new Version(1, 3);
+		Version nextMajor = new Version(2);
+
+		assertThat(nextMajor.isGreaterThan(nextMinor), is(true));
+		assertThat(nextMajor.isGreaterThan(nextMajor), is(false));
+		assertThat(nextMajor.is(nextMajor), is(true));
+		assertThat(nextMinor.isLessThan(nextMajor), is(true));
+		assertThat(nextMinor.isLessThan(nextMinor), is(false));
+
+		assertThat(nextMajor.compareTo(nextMajor), is(0));
+		assertThat(nextMinor.compareTo(nextMinor), is(0));
+		assertThat(nextBugfix.compareTo(nextBugfix), is(0));
+		assertThat(nextBuild.compareTo(nextBuild), is(0));
+
+		assertThat(version.compareTo(nextMajor), is(lessThan(0)));
+		assertThat(version.compareTo(nextMinor), is(lessThan(0)));
+		assertThat(version.compareTo(nextBugfix), is(lessThan(0)));
+		assertThat(version.compareTo(nextBuild), is(lessThan(0)));
+
+		assertThat(version.compareTo(null), is(greaterThan(0)));
+		assertThat(nextMajor.compareTo(version), is(greaterThan(0)));
+		assertThat(nextMinor.compareTo(version), is(greaterThan(0)));
+		assertThat(nextBugfix.compareTo(version), is(greaterThan(0)));
+		assertThat(nextBuild.compareTo(version), is(greaterThan(0)));
+	}
+}