fix(serialization): support content-type parameters and case-insensitivity in form factories

components/serialization/form/src/main/java/com/microsoft/kiota/serialization/FormParseNodeFactory.java

@@ -28,7 +28,7 @@ public FormParseNodeFactory() {}
         Objects.requireNonNull(rawResponse, "parameter rawResponse cannot be null");
         if (contentType.isEmpty()) {
             throw new NullPointerException("contentType cannot be empty");
-        } else if (!contentType.equals(validContentType)) {
+        } else if (!contentType.split(";", 2)[0].trim().equalsIgnoreCase(validContentType)) {
             throw new IllegalArgumentException("expected a " + validContentType + " content type");
         }
         String rawText;

components/serialization/form/src/main/java/com/microsoft/kiota/serialization/FormSerializationWriterFactory.java

@@ -20,7 +20,7 @@ public FormSerializationWriterFactory() {}
         Objects.requireNonNull(contentType, "parameter contentType cannot be null");
         if (contentType.isEmpty()) {
             throw new NullPointerException("contentType cannot be empty");
-        } else if (!contentType.equals(validContentType)) {
+        } else if (!contentType.split(";", 2)[0].trim().equalsIgnoreCase(validContentType)) {
             throw new IllegalArgumentException("expected a " + validContentType + " content type");
         }
         return new FormSerializationWriter();

components/serialization/form/src/test/java/com/microsoft/kiota/serialization/ParseNodeFactoryTests.java

@@ -4,6 +4,8 @@
 import static org.junit.jupiter.api.Assertions.assertThrows;
 
 import org.junit.jupiter.api.Test;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.ValueSource;
 
 import java.io.ByteArrayInputStream;
 import java.io.UnsupportedEncodingException;
@@ -37,4 +39,40 @@ public void throwsArgumentNullExceptionForNoContentType() throws UnsupportedEnco
         assertThrows(
                 NullPointerException.class, () -> _parseNodeFactory.getParseNode("", rawResponse));
     }
+
+    @ParameterizedTest
+    @ValueSource(
+            strings = {
+                "application/x-www-form-urlencoded; charset=utf-8",
+                "application/x-www-form-urlencoded; charset=UTF-8",
+                "application/x-www-form-urlencoded; charset=us-ascii",
+                "APPLICATION/X-WWW-FORM-URLENCODED",
+                "APPLICATION/X-WWW-FORM-URLENCODED; CHARSET=UTF-8",
+                "Application/x-www-form-urlencoded",
+                "Application/x-www-form-urlencoded; charset=utf-8",
+            })
+    public void getsParseNodeForContentTypeWithParametersOrCaseVariants(final String inputType)
+            throws UnsupportedEncodingException {
+        final var initialString = "key1=value1&key2=value2";
+        final var rawResponse = new ByteArrayInputStream(initialString.getBytes("UTF-8"));
+        final var parseNode = _parseNodeFactory.getParseNode(inputType, rawResponse);
+        assertNotNull(parseNode);
+    }
+
+    @ParameterizedTest
+    @ValueSource(
+            strings = {
+                ";",
+                ";;",
+                "; charset=utf-8",
+                "   ; charset=utf-8",
+            })
+    public void throwsIllegalArgumentExceptionForDelimiterOnlyOrMissingMediaType(
+            final String inputType) throws UnsupportedEncodingException {
+        final var initialString = "key1=value1&key2=value2";
+        final var rawResponse = new ByteArrayInputStream(initialString.getBytes("UTF-8"));
+        assertThrows(
+                IllegalArgumentException.class,
+                () -> _parseNodeFactory.getParseNode(inputType, rawResponse));
+    }
 }

components/serialization/form/src/test/java/com/microsoft/kiota/serialization/SerializationWriterFactoryTests.java

@@ -4,6 +4,8 @@
 import static org.junit.jupiter.api.Assertions.assertThrows;
 
 import org.junit.jupiter.api.Test;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.ValueSource;
 
 public class SerializationWriterFactoryTests {
     private static final FormSerializationWriterFactory _serializationWriterFactory =
@@ -30,4 +32,36 @@ public void throwsArgumentNullExceptionForNoContentType() {
                 NullPointerException.class,
                 () -> _serializationWriterFactory.getSerializationWriter(""));
     }
+
+    @ParameterizedTest
+    @ValueSource(
+            strings = {
+                "application/x-www-form-urlencoded; charset=utf-8",
+                "application/x-www-form-urlencoded; charset=UTF-8",
+                "application/x-www-form-urlencoded; charset=us-ascii",
+                "APPLICATION/X-WWW-FORM-URLENCODED",
+                "APPLICATION/X-WWW-FORM-URLENCODED; CHARSET=UTF-8",
+                "Application/x-www-form-urlencoded",
+                "Application/x-www-form-urlencoded; charset=utf-8",
+            })
+    public void getsWriterForContentTypeWithParametersOrCaseVariants(final String inputType) {
+        final var serializationWriter =
+                _serializationWriterFactory.getSerializationWriter(inputType);
+        assertNotNull(serializationWriter);
+    }
+
+    @ParameterizedTest
+    @ValueSource(
+            strings = {
+                ";",
+                ";;",
+                "; charset=utf-8",
+                "   ; charset=utf-8",
+            })
+    public void throwsIllegalArgumentExceptionForDelimiterOnlyOrMissingMediaType(
+            final String inputType) {
+        assertThrows(
+                IllegalArgumentException.class,
+                () -> _serializationWriterFactory.getSerializationWriter(inputType));
+    }
 }