Added support for multipart with content type, fixes gh-599

spring-cloud-contract-tools/spring-cloud-contract-converters/pom.xml

@@ -66,6 +66,11 @@
 			<artifactId>spring-boot-starter-web</artifactId>
 			<scope>test</scope>
 		</dependency>
+		<dependency>
+			<groupId>io.rest-assured</groupId>
+			<artifactId>rest-assured</artifactId>
+			<scope>test</scope>
+		</dependency>
 	</dependencies>
 	<build>
 		<plugins>

spring-cloud-contract-tools/spring-cloud-contract-converters/src/test/groovy/org/springframework/cloud/contract/verifier/wiremock/DslToWireMockClientConverterSpec.groovy

@@ -125,10 +125,10 @@ class DslToWireMockClientConverterSpec extends Specification {
 			wireMockRule.addStubMapping(mapping)
 		and:
 			MultiValueMap<String, Object> parameters = new LinkedMultiValueMap<String, Object>()
-			parameters.add("file", new ByteArrayResource([100, 117, 100, 97] as byte[]) {
+			parameters.add("test", new ByteArrayResource([100, 117, 100, 97] as byte[]) {
 				@Override
-				public String getFilename(){
-					return "file"
+				String getFilename(){
+					return "test"
 				}
 			})
 			org.springframework.http.HttpHeaders headers = new org.springframework.http.HttpHeaders()