tests: Add additional tests for the IMPLIED_STRING_LITERALS option

Author: dmaccormack

module/jsonurl-core/src/test/java/org/jsonurl/stream/JsonUrlIteratorTest.java

@@ -325,6 +325,14 @@ static Stream<EventTest> testAQF() {
                         JsonUrlEvent.VALUE_EMPTY_LITERAL,
                         JsonUrlEvent.END_STREAM}),
 
+                new EventTest(
+                    EnumSet.of(JsonUrlOption.IMPLIED_STRING_LITERALS),
+                    "!e",
+                    new Object[] {
+                        JsonUrlEvent.VALUE_STRING,
+                        "",
+                        JsonUrlEvent.END_STREAM}),
+
                 new EventTest(
                         "!e!e",
                         SyntaxException.class),
@@ -491,6 +499,14 @@ static Stream<EventTest> testNotAQF() {
                         "!e",
                         JsonUrlEvent.END_STREAM}),
 
+                new EventTest(
+                    EnumSet.of(JsonUrlOption.IMPLIED_STRING_LITERALS),
+                    "!e",
+                    new Object[] {
+                        JsonUrlEvent.VALUE_STRING,
+                        "!e",
+                        JsonUrlEvent.END_STREAM}),
+
                 new EventTest(
                     "!e!e",
                     new Object[] {

module/jsonurl-core/src/test/java/org/jsonurl/text/JsonUrlStringBuilderTest.java

@@ -249,6 +249,15 @@ void testEmptyString() throws IOException {
                 .add(EMPTY_STRING).build(),
             testName);
 
+        assertEquals(
+            "!e",
+            new JsonUrlStringBuilder(
+                    JsonUrlOption.COERCE_NULL_TO_EMPTY_STRING,
+                    JsonUrlOption.IMPLIED_STRING_LITERALS,
+                    JsonUrlOption.AQF)
+                .add((String)null).build(),
+            testName);
+
         assertEquals(
             "",
             new JsonUrlStringBuilder(