BAEL-5760: Change test names to BDD format (#12856)

Co-authored-by: Loredana Crusoveanu <lore.crusoveanu@gmail.com>

testing-modules/mocks/src/test/java/com/baeldung/datafaker/CollectionUnitTest.java

@@ -0,0 +1,19 @@
+package com.baeldung.datafaker;
+
+import org.junit.jupiter.api.Test;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.jupiter.api.Assertions.assertAll;
+
+class CollectionUnitTest {
+
+    @Test
+    void whenGettingFictionaCharacters_thenResultNotEmptyAndOfCorrectSize() {
+        assertAll(
+                () -> assertThat(Collection.getFictionalCharacters()).isNotEmpty(),
+                () -> assertThat(Collection.getFictionalCharacters()).size().isGreaterThanOrEqualTo(Collection.MIN),
+                () -> assertThat(Collection.getFictionalCharacters()).size().isLessThanOrEqualTo(Collection.MAX)
+        );
+
+    }
+}