Added more unit tests in AuthorTest

src/test/java/org/jabref/model/entry/AuthorTest.java

@@ -1,6 +1,9 @@
 package org.jabref.model.entry;
 
 import org.junit.jupiter.api.Test;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.NullAndEmptySource;
+import org.junit.jupiter.params.provider.ValueSource;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
 
@@ -20,23 +23,57 @@ void addDotIfAbbreviationDoesNotAddMultipleSpaces() {
         assertEquals("A. O.", Author.addDotIfAbbreviation("A O"));
     }
 
+    @ParameterizedTest
+    @ValueSource(strings = {"O.", "A. O.", "A.-O.",
+                            "O. Moore", "A. O. Moore", "O. von Moore", "A.-O. Moore",
+                            "Moore, O.", "Moore, O., Jr.", "Moore, A. O.", "Moore, A.-O.",
+                            "MEmre", "{\\'{E}}douard", "J{\\\"o}rg", "Moore, O. and O. Moore",
+                            "Moore, O. and O. Moore and Moore, O. O."})
+    void addDotIfAbbreviationDoNotAddDot(String input) {
+        assertEquals(input, Author.addDotIfAbbreviation(input));
+    }
+
+    @ParameterizedTest
+    @NullAndEmptySource
+    void addDotIfAbbreviationIfNameIsNullOrEmpty(String input) {
+        assertEquals(input, Author.addDotIfAbbreviation(input));
+    }
+
+    @ParameterizedTest
+    @ValueSource(strings = {"asdf", "a"})
+    void addDotIfAbbreviationLowerCaseLetters(String input) {
+        assertEquals(input, Author.addDotIfAbbreviation(input));
+    }
+
     @Test
-    void addDotIfAbbreviationDoNotAddDot() {
-        assertEquals("O.", Author.addDotIfAbbreviation("O."));
-        assertEquals("A. O.", Author.addDotIfAbbreviation("A. O."));
-        assertEquals("A.-O.", Author.addDotIfAbbreviation("A.-O."));
-        assertEquals("O. Moore", Author.addDotIfAbbreviation("O. Moore"));
-        assertEquals("A. O. Moore", Author.addDotIfAbbreviation("A. O. Moore"));
-        assertEquals("O. von Moore", Author.addDotIfAbbreviation("O. von Moore"));
-        assertEquals("A.-O. Moore", Author.addDotIfAbbreviation("A.-O. Moore"));
-        assertEquals("Moore, O.", Author.addDotIfAbbreviation("Moore, O."));
-        assertEquals("Moore, O., Jr.", Author.addDotIfAbbreviation("Moore, O., Jr."));
-        assertEquals("Moore, A. O.", Author.addDotIfAbbreviation("Moore, A. O."));
-        assertEquals("Moore, A.-O.", Author.addDotIfAbbreviation("Moore, A.-O."));
-        assertEquals("MEmre", Author.addDotIfAbbreviation("MEmre"));
-        assertEquals("{\\'{E}}douard", Author.addDotIfAbbreviation("{\\'{E}}douard"));
-        assertEquals("J{\\\"o}rg", Author.addDotIfAbbreviation("J{\\\"o}rg"));
-        assertEquals("Moore, O. and O. Moore", Author.addDotIfAbbreviation("Moore, O. and O. Moore"));
-        assertEquals("Moore, O. and O. Moore and Moore, O. O.", Author.addDotIfAbbreviation("Moore, O. and O. Moore and Moore, O. O."));
+    void addDotIfAbbreviationStartWithUpperCaseAndHyphen() {
+        assertEquals("A.-melia", Author.addDotIfAbbreviation("A-melia"));
     }
+
+    @Test
+    void addDotIfAbbreviationEndsWithUpperCaseLetter() {
+        assertEquals("AmeliA", Author.addDotIfAbbreviation("AmeliA"));
+    }
+
+    @Test
+    void addDotIfAbbreviationEndsWithUpperCaseLetterSpaced() {
+        assertEquals("Ameli A.", Author.addDotIfAbbreviation("Ameli A"));
+    }
+
+    @Test
+    void addDotIfAbbreviationEndsWithWhiteSpaced() {
+        assertEquals("Ameli", Author.addDotIfAbbreviation("Ameli "));
+    }
+
+    @Test
+    void addDotIfAbbreviationEndsWithDoubleAbbreviation() {
+        assertEquals("Ameli A. A.", Author.addDotIfAbbreviation("Ameli AA"));
+    }
+
+    @ParameterizedTest
+    @ValueSource(strings = {"1", "1 23"})
+    void addDotIfAbbreviationIfStartsWithNumber(String input) {
+        assertEquals(input, Author.addDotIfAbbreviation(input));
+    }
+
 }