Add ComplexGenericsInheritanceTest

kotlin/tests/src/test/kotlin/com/squareup/moshi/kotlin/codegen/ComplexGenericsInheritanceTest.kt

@@ -0,0 +1,132 @@
+@file:Suppress("UNUSED", "UNUSED_PARAMETER")
+
+package com.squareup.moshi.kotlin.codegen
+
+import com.squareup.moshi.JsonClass
+import com.squareup.moshi.Moshi
+import com.squareup.moshi.kotlin.reflect.adapter
+import org.assertj.core.api.Assertions.assertThat
+import org.intellij.lang.annotations.Language
+import org.junit.Test
+
+@ExperimentalStdlibApi
+class ComplexGenericsInheritanceTest {
+
+  private val moshi = Moshi.Builder().build()
+
+  @Test
+  fun simple() {
+    val adapter = moshi.adapter<PersonResponse>()
+
+    @Language("JSON")
+    val json = """{"data":{"name":"foo"},"data2":"bar","data3":"baz"}"""
+
+    val instance = adapter.fromJson(json)!!
+    val testInstance = PersonResponse().apply {
+      data = Person("foo")
+    }
+    assertThat(instance).isEqualTo(testInstance)
+    assertThat(adapter.toJson(instance)).isEqualTo(json)
+  }
+
+  @Test
+  fun nested() {
+    val adapter = moshi.adapter<NestedPersonResponse>()
+
+    @Language("JSON")
+    val json = """{"data":{"name":"foo"},"data2":"bar","data3":"baz"}"""
+
+    val instance = adapter.fromJson(json)!!
+    val testInstance = NestedPersonResponse().apply {
+      data = Person("foo")
+    }
+    assertThat(instance).isEqualTo(testInstance)
+    assertThat(adapter.toJson(instance)).isEqualTo(json)
+  }
+
+  @Test
+  fun untyped() {
+    val adapter = moshi.adapter<UntypedNestedPersonResponse<Person>>()
+
+    @Language("JSON")
+    val json = """{"data":{"name":"foo"},"data2":"bar","data3":"baz"}"""
+
+    val instance = adapter.fromJson(json)!!
+    val testInstance = UntypedNestedPersonResponse<Person>().apply {
+      data = Person("foo")
+    }
+    assertThat(instance).isEqualTo(testInstance)
+    assertThat(adapter.toJson(instance)).isEqualTo(json)
+  }
+
+  @Test
+  fun complex() {
+    val adapter = moshi.adapter<Layer4<Person, UntypedNestedPersonResponse<Person>>>()
+
+    @Language("JSON")
+    val json = """{"layer4E":{"name":"layer4E"},"layer4F":{"data":{"name":"layer4F"},"data2":"layer4F","data3":"layer4F"},"layer3C":[1,2,3],"layer3D":"layer3D","layer2":"layer2","layer1":"layer1"}"""
+
+    val instance = adapter.fromJson(json)!!
+    val testInstance = Layer4(
+        layer4E = Person("layer4E"),
+        layer4F = UntypedNestedPersonResponse<Person>().apply {
+          data = Person("layer4F")
+          data2 = "layer4F"
+          data3 = "layer4F"
+        }
+    ).apply {
+      layer3C = listOf(1, 2, 3)
+      layer3D = "layer3D"
+      layer2 = "layer2"
+      layer1 = "layer1"
+    }
+    assertThat(instance).isEqualTo(testInstance)
+    assertThat(adapter.toJson(testInstance)).isEqualTo(json)
+  }
+}
+
+open class ResponseWithSettableProperty<T, R> {
+  var data: T? = null
+  var data2: R? = null
+  var data3: R? = null
+}
+
+interface Personable
+
+@JsonClass(generateAdapter = true)
+data class Person(val name: String) : Personable
+
+@JsonClass(generateAdapter = true)
+data class PersonResponse(
+    val extra: String? = null) : ResponseWithSettableProperty<Person, String>()
+
+abstract class NestedResponse<T : Personable> : ResponseWithSettableProperty<T, String>()
+
+@JsonClass(generateAdapter = true)
+data class NestedPersonResponse(val extra: String? = null) : NestedResponse<Person>()
+
+@JsonClass(generateAdapter = true)
+data class UntypedNestedPersonResponse<T : Personable>(
+    val extra: String? = null
+) : NestedResponse<T>()
+
+interface LayerInterface<I>
+
+abstract class Layer1<A> {
+  var layer1: A? = null
+}
+
+abstract class Layer2<B> : Layer1<B>(), LayerInterface<B> {
+  var layer2: B? = null
+}
+
+abstract class Layer3<C, D> : Layer2<D>() {
+  var layer3C: C? = null
+  var layer3D: D? = null
+}
+
+@JsonClass(generateAdapter = true)
+data class Layer4<E, F>(
+    val layer4E: E,
+    val layer4F: F? = null
+) : Layer3<List<Int>, String>(), LayerInterface<String>