Add test cases with null values

Author: alb3rtino

mod-erm-usage-counter50/src/test/java/org/olf/erm/usage/counter50/converter/MissingAttributesTest.java

@@ -0,0 +1,80 @@
+package org.olf.erm.usage.counter50.converter;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatCode;
+
+import com.google.common.io.Resources;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.util.stream.Stream;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.olf.erm.usage.counter50.Counter5Utils;
+import org.olf.erm.usage.counter50.Counter5Utils.Counter5UtilsException;
+import org.olf.erm.usage.counter50.converter.dr.DRD1Converter;
+import org.olf.erm.usage.counter50.converter.tr.TRB1Converter;
+import org.olf.erm.usage.counter50.converter.tr.TRB3Converter;
+import org.olf.erm.usage.counter50.converter.tr.TRJ1Converter;
+import org.olf.erm.usage.counter50.converter.tr.TRJ3Converter;
+import org.olf.erm.usage.counter50.converter.tr.TRJ4Converter;
+import org.openapitools.client.model.COUNTERDatabaseReport;
+import org.openapitools.client.model.COUNTERTitleReport;
+
+public class MissingAttributesTest {
+
+  private static String trStr;
+  private static String drStr;
+  private static COUNTERTitleReport tr;
+  private static COUNTERDatabaseReport dr;
+
+  @BeforeClass
+  public static void beforeClass() throws IOException, Counter5UtilsException {
+    trStr =
+        Resources.toString(Resources.getResource("converter/tr/tr.json"), StandardCharsets.UTF_8);
+    drStr =
+        Resources.toString(Resources.getResource("converter/dr/dr.json"), StandardCharsets.UTF_8);
+  }
+
+  @Before
+  public void setUp() throws Counter5UtilsException {
+    tr = (COUNTERTitleReport) Counter5Utils.fromJSON(trStr);
+    dr = (COUNTERDatabaseReport) Counter5Utils.fromJSON(drStr);
+  }
+
+  @Test
+  public void testThatConverterIsWorkingWithNullAttributesWhileFiltering() {
+    tr.getReportItems().forEach(tu -> tu.setAccessMethod(null));
+    dr.getReportItems().forEach(du -> du.setAccessMethod(null));
+    Stream.of(
+            new TRJ1Converter(),
+            new TRJ3Converter(),
+            new TRJ4Converter(),
+            new TRB1Converter(),
+            new TRB3Converter())
+        .forEach(
+            m ->
+                assertThatCode(() -> assertThat(m.convert(tr).getReportItems()).isEmpty())
+                    .doesNotThrowAnyException());
+    assertThatCode(() -> assertThat(new DRD1Converter().convert(dr).getReportItems()).isEmpty())
+        .doesNotThrowAnyException();
+  }
+
+  @Test
+  public void testThatConverterIsWorkingWithNullAttributesWhileGrouping() {
+    tr.getReportItems().forEach(tu -> tu.setPlatform(null));
+    dr.getReportItems().forEach(du -> du.setPlatform(null));
+    Stream.of(
+            new TRJ1Converter(),
+            new TRJ3Converter(),
+            new TRJ4Converter(),
+            new TRB1Converter(),
+            new TRB3Converter())
+        .forEach(
+            m ->
+                assertThatCode(() -> assertThat(m.convert(tr).getReportItems()).isNotEmpty())
+                    .doesNotThrowAnyException());
+    assertThatCode(() -> assertThat(new DRD1Converter().convert(dr).getReportItems()).isNotEmpty())
+        .doesNotThrowAnyException();
+  }
+}