Add rest-test-client module: RestTestClient across all four binding modes, TestRestTemplate relocation, gzip-hiding HTTP client surprise (post #44)

README.md

@@ -41,12 +41,17 @@ files.
 | [`aot-cache/`](aot-cache) | [Faster Spring Boot Startup with the JDK AOT Cache (JEP 514/515): Benchmarks vs CDS and Native](https://ankurm.com/spring-boot-jdk-aot-cache-jep-514-515-startup-benchmarks/) | the JDK 25 AOT cache trained two ways, against a plain JVM, AppCDS, Spring's own AOT output and a GraalVM native image (ten interleaved rounds each), first-request latency, 24 cases where the cache silently stops applying (jar, timestamp, JVM build, ZGC, compact headers), `-XX:AOTMode=on`, Docker layer arithmetic |
 | [`kotlin/`](kotlin) | [Kotlin with Spring Boot 4.1: Null Safety, Coroutines, and What Java Developers Get Wrong](https://ankurm.com/) | Kotlin 2.3.21 (Boot 4.1.1's own managed version, not the latest GA), the real `@Configuration class may not be final` and `@Bean method must not be private or final` failures without the allopen/noarg `spring`/`jpa` compiler plugins, `suspend fun`/`Flow<T>` controller methods proven to still resume off a Tomcat thread under plain `spring-boot-starter-webmvc`, a JSpecify `@NullMarked` Java method that still NPEs at runtime because the contract isn't runtime-checked, and `TestRestTemplate` confirmed absent from Boot 4.1's `spring-boot-test` jar |
 | [`testing-no-containers/`](testing-no-containers) | [Testing Spring Boot 4 Without Containers: WireMock, MockWebServer and @MockitoBean](https://ankurm.com/) | `@MockBean`'s total removal proven with a real `javac` failure, `@MockitoBean`/`@MockitoSpyBean` context-cache behavior proven with real `org.springframework.test.context.cache` DEBUG log lines, WireMock fault injection against a real `RestClient`, a real `NoClassDefFoundError` from mixing `wiremock` with `wiremock-jetty12` (fixed with `wiremock-standalone`), and MockWebServer's `SocketEffect.ShutdownConnection` for genuinely severing a connection mid-response |
+| [`rest-test-client/`](rest-test-client) | [RestTestClient in Spring Framework 7: Testing REST APIs End-to-End (vs MockMvcTester)](https://ankurm.com/resttestclient-spring-framework-7-end-to-end-testing/) | one fluent `RestTestClient` API proven across `bindToController`, `bindTo(mockMvc)`, `bindToApplicationContext` and `bindToServer`; `RestTestClient`, `TestRestTemplate` and `@WebMvcTest` confirmed relocated into new Spring Boot 4 modules by unzipping the real jars; two distinct real failures for the two now-separate `@AutoConfigureRestTestClient`/`@AutoConfigureTestRestTemplate` annotations; and the JDK `HttpClient` Boot picks for `bindToServer` caught transparently decoding gzip and hiding `Content-Encoding`, verified against `curl` and against the older `SimpleClientHttpRequestFactory` |
 
-`core-di`, `core-beans`, `custom-starter`, `core-events`, `multi-datasource`, `i18n`, `aot-cache`, `kotlin`, `testing-no-containers` and `hexagonal` are the exception: they have **no `docs/` folder**. Their deeper material lives in
-collapsible sections inside the articles themselves, and their captured output sits in a top-level `output/`
-directory instead of `docs/output/` (`hexagonal` is also the one multi-module reactor in this
-repo, so its output sits one level deeper still, under each module: `core/output/`,
-`persistence-adapter/output/`, and so on).
+`core-di`, `core-beans`, `custom-starter`, `core-events`, `multi-datasource`, `i18n`, `aot-cache`, `kotlin`, `testing-no-containers`, `rest-test-client` and `hexagonal` are the exception: they have **no `docs/NN-topic.md` chapter folder**. Their deeper material lives in
+collapsible sections inside the articles themselves. Where their captured output sits is not
+uniform, and is worth checking per module rather than assuming: `core-di`, `core-beans`,
+`custom-starter`, `core-events`, `multi-datasource`, `i18n` and `aot-cache` keep it in a
+top-level `output/` directory (`hexagonal` is also the one multi-module reactor in this repo,
+so its output sits one level deeper still, under each module: `core/output/`,
+`persistence-adapter/output/`, and so on) — but `kotlin`, `testing-no-containers` and
+`rest-test-client` still use `docs/output/`, same as the chaptered modules, just without the
+`docs/NN-topic.md` chapters themselves.
 
 Articles whose text is kept here rather than only on the blog have it under
 `<directory>/post/` — `post.md` for the body and `meta.md` for the title, excerpt and