increase coverage

up-annotations/pom.xml

@@ -1,20 +1,28 @@
 <?xml version="1.0"?>
-<project
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-    <modelVersion>4.0.0</modelVersion>
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xmlns="http://maven.apache.org/POM/4.0.0"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
 
-    <parent>
-        <groupId>com.github.restup</groupId>
-        <artifactId>up-parent</artifactId>
-        <version>0.0.1-SNAPSHOT</version>
-        <relativePath>../up-parent</relativePath>
-    </parent>
+	<parent>
+		<groupId>com.github.restup</groupId>
+		<artifactId>up-parent</artifactId>
+		<version>0.0.1-SNAPSHOT</version>
+		<relativePath>../up-parent</relativePath>
+	</parent>
 
-    <artifactId>up-annotations</artifactId>
-    <packaging>jar</packaging>
-    <name>Up! :: annotations</name>
+	<artifactId>up-annotations</artifactId>
+	<packaging>jar</packaging>
+	<name>Up! :: annotations</name>
 
+	<dependencies>
+
+		<dependency>
+			<groupId>junit</groupId>
+			<artifactId>junit</artifactId>
+			<scope>test</scope>
+		</dependency>
+
+	</dependencies>
 
 </project>

up-annotations/src/test/java/com/github/restup/annotations/field/RelationshipTypeTest.java

@@ -0,0 +1,43 @@
+package com.github.restup.annotations.field;
+
+import static com.github.restup.annotations.field.RelationshipType.manyToMany;
+import static com.github.restup.annotations.field.RelationshipType.manyToOne;
+import static com.github.restup.annotations.field.RelationshipType.oneToMany;
+import static com.github.restup.annotations.field.RelationshipType.oneToOne;
+import static org.junit.Assert.assertEquals;
+import java.util.function.Function;
+import org.junit.Test;
+
+public class RelationshipTypeTest {
+
+    @Test
+    public void testIsOneTo() {
+        assertType(true, RelationshipType::isOneTo, oneToOne, oneToMany);
+        assertType(false, RelationshipType::isOneTo, manyToOne, manyToMany);
+    }
+
+    @Test
+    public void testIsManyTo() {
+        assertType(true, RelationshipType::isManyTo, manyToOne, manyToMany);
+        assertType(false, RelationshipType::isManyTo, oneToOne, oneToMany);
+    }
+
+    @Test
+    public void testToOne() {
+        assertType(true, RelationshipType::isToOne, oneToOne, manyToOne);
+        assertType(false, RelationshipType::isToOne, oneToMany, manyToMany);
+    }
+
+    @Test
+    public void testToMany() {
+        assertType(true, RelationshipType::isToMany, oneToMany, manyToMany);
+        assertType(false, RelationshipType::isToMany, oneToOne, manyToOne);
+    }
+
+    private static void assertType(boolean expected, Function<RelationshipType, Boolean> f, RelationshipType... relationshipTypes ) {
+        for ( RelationshipType type : relationshipTypes ) {
+            assertEquals(expected, f.apply(type));
+        }
+    }
+
+}