[CLI-343] OptionFormatter.getBothOpt() lacks validation for Options

without opt or longOpt

Add tests

Author: garydgregory

src/test/java/org/apache/commons/cli/help/OptionFormatterTest.java

@@ -17,6 +17,7 @@ Licensed to the Apache Software Foundation (ASF) under one or more
 package org.apache.commons.cli.help;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -132,6 +133,18 @@ void testAsSyntaxOption() {
         assertEquals("[-ot <arg>]", underTest.toSyntaxOption(), "optional multi char opt arg failed");
     }
 
+    @Test
+    void testCli343Part1() {
+        assertThrows(IllegalStateException.class, () -> Option.builder().required(false).build());
+        assertThrows(IllegalStateException.class, () -> Option.builder().required(false).get());
+    }
+
+    @Test
+    void testCli343Part2() {
+        assertThrows(IllegalStateException.class, () -> Option.builder().desc("description").build());
+        assertThrows(IllegalStateException.class, () -> Option.builder().desc("description").get());
+    }
+
     @ParameterizedTest(name = "{index} {0}")
     @MethodSource("deprecatedAttributesData")
     void testComplexDeprecationFormat(final DeprecatedAttributes da, final String expected) {