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feat: check
WrapperAdapter#adaptee contract when `createWrapperAdap…
…ter` ⚖️
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124 changes: 124 additions & 0 deletions
124
src/test/java/io/foldright/inspectablewrappers/utils/WrapperAdapterUtilsTest.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,124 @@ | ||
| package io.foldright.inspectablewrappers.utils | ||
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||
| import io.foldright.inspectablewrappers.* | ||
| import io.foldright.inspectablewrappers.utils.WrapperAdapterUtils.createWrapperAdapter | ||
| import io.kotest.assertions.throwables.shouldThrow | ||
| import io.kotest.core.spec.style.FunSpec | ||
| import io.kotest.matchers.booleans.shouldBeFalse | ||
| import io.kotest.matchers.booleans.shouldBeTrue | ||
| import io.kotest.matchers.nulls.shouldBeNull | ||
| import io.kotest.matchers.shouldBe | ||
| import io.kotest.matchers.string.shouldStartWith | ||
| import java.util.concurrent.Executor | ||
| import java.util.concurrent.ExecutorService | ||
| import java.util.concurrent.Executors | ||
| import java.util.concurrent.ThreadPoolExecutor | ||
|
|
||
| class WrapperAdapterUtilsTest : FunSpec({ | ||
| @Suppress("UNCHECKED_CAST") | ||
| test("createWrapperAdapter with Attachable") { | ||
| val chain: Executor = Executor { runnable -> runnable.run() } | ||
| .let { | ||
| val existed = ExistedExecutorWrapper(it) | ||
| val adapter = createWrapperAdapter( | ||
| Executor::class.java, | ||
| it, | ||
| existed, | ||
| AttachableDelegate<String, String>(), | ||
| ) | ||
| adapter.toString() shouldStartWith "[WrapperAdapterProxy created by WrapperAdapterUtils] " | ||
|
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| val attachable = adapter as Attachable<String, String> | ||
| attachable.setAttachment(ADAPTED_MSG_KEY, ADAPTED_MSG_VALUE) | ||
| attachable.getAttachment(ADAPTED_MSG_KEY) shouldBe ADAPTED_MSG_VALUE | ||
|
|
||
| adapter | ||
| } | ||
| .let(::ChattyExecutorWrapper) | ||
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| Inspector.containsInstanceOnWrapperChain(chain, ExistedExecutorWrapper::class.java).shouldBeTrue() | ||
| Inspector.containsInstanceOnWrapperChain(chain, ChattyExecutorWrapper::class.java).shouldBeTrue() | ||
| Inspector.containsInstanceOnWrapperChain(chain, ExecutorService::class.java).shouldBeFalse() | ||
|
|
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| val value: String? = Inspector.getAttachmentFromWrapperChain(chain, ADAPTED_MSG_KEY) | ||
| value shouldBe ADAPTED_MSG_VALUE | ||
|
|
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| Inspector.getAttachmentFromWrapperChain<Executor, String, String?>(chain, "not existed").shouldBeNull() | ||
|
|
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| // testing the proxy invocation | ||
| chain.execute { println("I'm working.") } | ||
| } | ||
|
|
||
| test("createWrapperAdapter without Attachable") { | ||
| val chain: Executor = Executor { runnable -> runnable.run() } | ||
| .let { | ||
| createWrapperAdapter( | ||
| Executor::class.java, | ||
| it, | ||
| ExistedExecutorWrapper(it), | ||
| ) | ||
| } | ||
| .let(::ChattyExecutorWrapper) | ||
|
|
||
| Inspector.containsInstanceOnWrapperChain(chain, ExistedExecutorWrapper::class.java).shouldBeTrue() | ||
| Inspector.containsInstanceOnWrapperChain(chain, ChattyExecutorWrapper::class.java).shouldBeTrue() | ||
| Inspector.containsInstanceOnWrapperChain(chain, ExecutorService::class.java).shouldBeFalse() | ||
|
|
||
| Inspector.getAttachmentFromWrapperChain<Executor, String, String?>(chain, "not existed").shouldBeNull() | ||
|
|
||
| // testing the proxy invocation | ||
| chain.execute { println("I'm working.") } | ||
| } | ||
|
|
||
| test("adaptee contract") { | ||
| val executor = Executor { it.run() } | ||
| val wrongAdaptee = WrongWrapperAdapter(executor) | ||
| shouldThrow<IllegalArgumentException> { | ||
| createWrapperAdapter(Executor::class.java, executor, wrongAdaptee) | ||
| }.message shouldBe "adaptee(io.foldright.inspectablewrappers.utils.WrongWrapperAdapter) is type Wrapper," + | ||
| " adapting a Wrapper to a Wrapper is unnecessary!" | ||
| } | ||
|
|
||
| @Suppress("UNCHECKED_CAST") | ||
| test("checkTypeRequirements - bizInterface") { | ||
| shouldThrow<IllegalArgumentException> { | ||
| createWrapperAdapter( | ||
| ThreadPoolExecutor::class.java, | ||
| Executors.newCachedThreadPool() as ThreadPoolExecutor, | ||
| Executors.newCachedThreadPool() as ThreadPoolExecutor | ||
| ) | ||
| }.message shouldBe "bizInterface(java.util.concurrent.ThreadPoolExecutor) is not an interface" | ||
|
|
||
| shouldThrow<IllegalArgumentException> { | ||
| createWrapperAdapter(Wrapper::class.java as Class<Any>, "", "") | ||
| }.message shouldBe "io.foldright.inspectablewrappers.Wrapper is auto implemented by proxy, not a valid biz interface" | ||
| shouldThrow<IllegalArgumentException> { | ||
| createWrapperAdapter(WrapperAdapter::class.java as Class<Any>, "", "") | ||
| }.message shouldBe "io.foldright.inspectablewrappers.WrapperAdapter is auto implemented by proxy, not a valid biz interface" | ||
| shouldThrow<IllegalArgumentException> { | ||
| createWrapperAdapter(Attachable::class.java as Class<Any>, "", "") | ||
| }.message shouldBe "io.foldright.inspectablewrappers.Attachable is auto implemented by proxy, not a valid biz interface" | ||
| } | ||
|
|
||
| @Suppress("UNCHECKED_CAST") | ||
| test("checkTypeRequirements - underlying/adaptee") { | ||
| shouldThrow<IllegalArgumentException> { | ||
| createWrapperAdapter( | ||
| Executor::class.java as Class<Any>, | ||
| "", "" | ||
| ) | ||
| }.message shouldBe "underlying(java.lang.String) is not a java.util.concurrent.Executor" | ||
|
|
||
| shouldThrow<IllegalArgumentException> { | ||
| createWrapperAdapter( | ||
| Executor::class.java as Class<Any>, | ||
| Executor { it.run() }, "" | ||
| ) | ||
| }.message shouldBe "adaptee(java.lang.String) is not a java.util.concurrent.Executor" | ||
| } | ||
| }) | ||
|
|
||
| class WrongWrapperAdapter(private val executor: Executor) : WrapperAdapter<Executor>, Executor by executor { | ||
| override fun unwrap(): Executor = executor | ||
| override fun adaptee(): Executor = executor | ||
| } |