Add test to verify that a resource is provided that returns a filename.

This resolves BAOBAB-2730, #43.

src/main/java/com/afrozaar/wordpress/wpapi/v2/util/FilenameWrapperByteArrayResource.java

@@ -0,0 +1,22 @@
+package com.afrozaar.wordpress.wpapi.v2.util;
+
+import org.springframework.core.io.ByteArrayResource;
+
+public class FilenameWrapperByteArrayResource extends ByteArrayResource {
+    final String fileName;
+
+    public FilenameWrapperByteArrayResource(byte[] byteArray, String fileName) {
+        super(byteArray);
+        this.fileName = fileName;
+    }
+
+    public FilenameWrapperByteArrayResource(byte[] byteArray, String description, String fileName) {
+        super(byteArray, description);
+        this.fileName = fileName;
+    }
+
+    @Override
+    public String getFilename() {
+        return fileName;
+    }
+}

src/test/java/com/afrozaar/wordpress/wpapi/v2/WordpressClientTest.java

@@ -2,11 +2,18 @@
 
 import static org.assertj.core.api.Assertions.assertThat;
 
+import static org.junit.Assert.fail;
+
 import com.afrozaar.wordpress.wpapi.v2.config.ClientConfig;
 import com.afrozaar.wordpress.wpapi.v2.config.ClientFactory;
+import com.afrozaar.wordpress.wpapi.v2.exception.WpApiParsedException;
 import com.afrozaar.wordpress.wpapi.v2.model.Post;
+import com.afrozaar.wordpress.wpapi.v2.model.builder.MediaBuilder;
 import com.afrozaar.wordpress.wpapi.v2.model.builder.PostBuilder;
 import com.afrozaar.wordpress.wpapi.v2.model.builder.TitleBuilder;
+import com.afrozaar.wordpress.wpapi.v2.util.FilenameWrapperByteArrayResource;
+
+import org.springframework.core.io.ByteArrayResource;
 
 import org.junit.Test;
 import org.slf4j.Logger;
@@ -46,4 +53,23 @@ public void PostFieldProcessingTest() {
 
     }
 
+    @Test(expected = NullPointerException.class)
+    public void CreateMedia_MustFallOverWhenResourceDoesNotReturnFilename() throws WpApiParsedException {
+        wordpress.createMedia(MediaBuilder.aMedia().build(), new ByteArrayResource(new byte[0]));
+    }
+
+    @Test
+    public void CreateMedia_MustNotFallOverWhenResourceReturnsFileName() throws WpApiParsedException {
+
+
+
+        try {
+            wordpress.createMedia(MediaBuilder.aMedia().build(), new FilenameWrapperByteArrayResource(new byte[0], "myfile.png"));
+        } catch (RuntimeException e) {
+            if (e instanceof NullPointerException) {
+                fail("Did not expect a nullpointer exception");
+            }
+        }
+    }
+
 }