Merge pull request #1694 from swagger-api/issue#1685

improve test for issue #1685 get messages from conversion v2 to v3

Author: gracekarina

modules/swagger-parser/src/test/java/io/swagger/parser/OpenAPIParserTest.java

@@ -1,6 +1,5 @@
 package io.swagger.parser;
 
-import io.swagger.v3.core.util.Yaml;
 import io.swagger.v3.oas.models.Components;
 import io.swagger.v3.oas.models.OpenAPI;
 import io.swagger.v3.oas.models.media.ArraySchema;
@@ -39,6 +38,10 @@ public void testNPE_1685() {
         options.setResolveFully(true);
         SwaggerParseResult swaggerParseResult = openAPIParser.readLocation("issue1685.json", null, options);
         assertNull(swaggerParseResult.getOpenAPI());
+        assertNotNull(swaggerParseResult.getMessages());
+        assertTrue(swaggerParseResult.getMessages().size() == 2);
+        assertEquals(swaggerParseResult.getMessages().get(0), "attribute notswagger is unexpected");
+        assertEquals(swaggerParseResult.getMessages().get(1), "attribute swagger is missing");
     }
 
     @Test