misc: move model to unit test

Author: 0marperez

tests/compile/src/test/kotlin/software/amazon/smithy/kotlin/codegen/SmithySdkTest.kt

@@ -227,7 +227,34 @@ class SmithySdkTest {
 
     @Test
     fun `it compiles models with unions with members that have the same name as the union`() {
-        val model = javaClass.getResource("/kitchen-sink-model.smithy")!!.asSmithy()
+        val model = """
+            namespace aws.sdk.kotlin.test
+
+            use aws.protocols#awsJson1_0
+            use smithy.rules#operationContextParams
+            use smithy.rules#endpointRuleSet
+            use aws.api#service
+            
+            @awsJson1_0
+            @service(sdkId: "UnionOperationTest")
+            service TestService {
+                operations: [UnionOperation],
+                version: "1"
+            }
+            
+            operation UnionOperation {
+                input: UnionOperationRequest
+            }
+            
+            structure UnionOperationRequest {
+                Union: Foo
+            }
+            
+            union Foo {
+                foo: Boolean
+            }
+
+        """.asSmithy()
 
         val compileOutputStream = ByteArrayOutputStream()
         val compilationResult = compileSdkAndTest(model = model, outputSink = compileOutputStream, emitSourcesToTmp = Debug.emitSourcesToTemp)

tests/compile/src/test/resources/kitchen-sink-model.smithy

@@ -59,13 +59,7 @@ structure SmokeTestRequest {
 
     payload1: String,
     payload2: Integer,
-    payload3: Nested,
-
-    nestedUnion: NestedUnion
-}
-
-union NestedUnion {
-    nestedUnion: Boolean
+    payload3: Nested
 }
 
 structure Nested {