Kotlin: fix default value (#882)

Author: jxnu-liguobin

src/main/resources/templates/kotlin-lang/request.ftl

@@ -107,7 +107,7 @@ open class ${className}(private val alias: String?) : GraphQLOperationRequest {
  <#else>
  <#if MapperUtil.isKotlinPrimitive(field.type)>
  <#assign default = MapperUtil.defaultValueKotlinPrimitive(field.type)/>
- private var ${field.name}: ${field.type} = default
+ private var ${field.name}: ${field.type} = ${default}
  <#else>
  private lateinit var ${field.name}: ${field.type}
  </#if>

src/test/java/com/kobylynskyi/graphql/codegen/kotlin/GraphQLCodegenGitHubTest.java

@@ -19,6 +19,7 @@
 import static java.util.Collections.singletonList;
 import static org.hamcrest.MatcherAssert.assertThat;
 
+
 class GraphQLCodegenGitHubTest {
 
  private final File outputBuildDir = new File("build/generated");
@@ -187,4 +188,16 @@ void generate_CustomFieldsResolvers() throws Exception {
  getFileByName(files, "AcceptTopicSuggestionPayloadResolver.kt"));
  }
 
+ @Test
+ void generate_RequestWithDefaultValue() throws Exception {
+ mappingConfig.setGenerateBuilder(true);
+ mappingConfig.setGenerateClient(true);
+ new KotlinGraphQLCodegen(singletonList("src/test/resources/schemas/kt/default.graphqls"),
+ outputBuildDir, mappingConfig, TestUtils.getStaticGeneratedInfo()).generate();
+ File[] files = Objects.requireNonNull(outputktClassesDir.listFiles());
+ assertSameTrimmedContent(new File("src/test/resources/expected-classes/kt/default/" +
+ "FriendsQueryRequest.kt.txt"),
+ getFileByName(files, "FriendsQueryRequest.kt"));
+ }
+
 }

src/test/resources/expected-classes/kt/default/FriendsQueryRequest.kt.txt

@@ -0,0 +1,78 @@
+package com.github.graphql
+
+import com.kobylynskyi.graphql.codegen.model.graphql.GraphQLOperation
+import com.kobylynskyi.graphql.codegen.model.graphql.GraphQLOperationRequest
+import java.util.Objects
+
+@javax.annotation.Generated(
+ value = ["com.kobylynskyi.graphql.codegen.GraphQLCodegen"],
+ date = "2020-12-31T23:59:59-0500"
+)
+open class FriendsQueryRequest(private val alias: String?) : GraphQLOperationRequest {
+
+ companion object {
+ const val OPERATION_NAME: String = "friends"
+ val OPERATION_TYPE: GraphQLOperation = GraphQLOperation.QUERY
+
+ @JvmStatic fun builder(): Builder = Builder()
+ }
+
+ private val input: MutableMap<String, Any?> = LinkedHashMap()
+ private val useObjectMapperForInputSerialization: MutableSet<String> = HashSet()
+
+ constructor(): this(null)
+
+ fun setNum(num: Int) {
+ this.input["num"] = num
+ }
+
+ override fun getOperationType(): GraphQLOperation = OPERATION_TYPE
+
+ override fun getOperationName(): String = OPERATION_NAME
+
+ override fun getAlias(): String? = alias ?: OPERATION_NAME
+
+ override fun getInput(): MutableMap<String, Any?> = input
+
+ override fun getUseObjectMapperForInputSerialization(): MutableSet<String> = useObjectMapperForInputSerialization
+
+ override fun equals(other: Any?): Boolean {
+ if (this === other) {
+ return true
+ }
+ if (other == null || javaClass != other.javaClass) {
+ return false
+ }
+ val that = other as FriendsQueryRequest
+ return Objects.equals(operationType, that.operationType) &&
+ Objects.equals(operationName, that.operationName) &&
+ Objects.equals(input, that.input)
+ }
+
+ override fun hashCode(): Int = Objects.hash(operationType, operationName, input)
+
+ override fun toString(): String = Objects.toString(input)
+
+ class Builder {
+
+ private var `$alias`: String? = null
+ private var num: Int = 0
+
+ fun alias(alias: String?): Builder {
+ this.`$alias` = alias
+ return this
+ }
+
+ fun setNum(num: Int): Builder {
+ this.num = num
+ return this
+ }
+
+ fun build(): FriendsQueryRequest {
+ val obj = FriendsQueryRequest(`$alias`)
+ obj.setNum(num)
+ return obj
+ }
+
+ }
+}

src/test/resources/schemas/kt/default.graphqls

@@ -0,0 +1,7 @@
+type Query {
+ friends(num: Int!): [Friend]
+}
+
+type Friend {
+ name: String
+}