== How to write good tests?

=== Base classes for test cases

There are multiple base classes for tests:

* **`ESTestCase`**: The base class of all tests. It is typically extended
  directly by unit tests.
* **`ESSingleNodeTestCase`**: This test case sets up a cluster that has a
  single node.
* **`ESIntegTestCase`**: An integration test case that creates a cluster that
  might have multiple nodes.

  * New SchedulerExtender enables users to implement custom
out-of-(the-scheduler)-process scheduling predicates and priority functions,
for example to schedule pods based on resources that are not directly managed

using [spotless], backed by the Eclipse formatter. **We strongly recommend
installing using the [Eclipse Code Formatter] plugin** so that you can
apply the correct formatting directly in IntelliJ.  The configuration for
the plugin is held in `.idea/eclipseCodeFormatter.xml` and should be
automatically applied, but manual instructions are below in case you you
need them.

      fail();
    } catch (IllegalStateException expected) {
    }
  }

  // Avoid infinite recursion if a closeable's close() method throws RejectedExecutionException and
  // is closed using the direct executor.
  public void testCloseThrowsRejectedExecutionException() throws Exception {
    doThrow(new RejectedExecutionException()).when(mockCloseable).close();
    ClosingFuture<Closeable> closingFuture =

github.com/nats-io/stan.go v0.10.4 h1:19GS/eD1SeQJaVkeM9EkvEYattnvnWrZ3wkSWSw4uXw=
github.com/nats-io/stan.go v0.10.4/go.mod h1:3XJXH8GagrGqajoO/9+HgPyKV5MWsv7S5ccdda+pc6k=
github.com/ncw/directio v1.0.5 h1:JSUBhdjEvVaJvOoyPAbcW0fnd0tvRXD76wEfZ1KcQz4=
github.com/ncw/directio v1.0.5/go.mod h1:rX/pKEYkOXBGOggmcyJeJGloCkleSvphPx2eV3t6ROk=
github.com/nsqio/go-nsq v1.1.0 h1:PQg+xxiUjA7V+TLdXw7nVrJ5Jbl3sN86EhGCQj4+FYE=

				"application/x-compress",
				"application/x-corelpresentations",
				"application/x-cpio",
				"application/x-csh",
				"application/x-debian-package",
				"application/x-dex",
				"application/x-director",
				"application/x-doom",
				"application/x-dtbncx+xml",
				"application/x-dtbook+xml",
				"application/x-dtbresource+xml",
				"application/x-dvi",
				"application/x-elc",
				"application/x-elf",

  }

  @Test
  fun emptyCache() {
    cache.close()
    assertJournalEquals()
  }

  @Test
  fun recoverFromInitializationFailure() {
    // Add an uncommitted entry. This will get detected on initialization, and the cache will
    // attempt to delete the file. Do not explicitly close the cache here so the entry is left as
    // incomplete.
    val creator = cache.edit("k1")!!

- The audit event sourceIPs list will now always end with the IP that sent the request directly to the API server. ([#87167](https://github.com/kubernetes/kubernetes/pull/87167), [@tallclair](https://github.com/tallclair)) [SIG API Machinery and Auth]

    // Cached!
    val response2 = get(server.url("/"))
    assertThat(response2.body.string()).isEqualTo("ABC")
    assertThat(response2.handshake!!.cipherSuite).isNotNull()

    // 2 direct + 2 redirect = 4
    assertThat(cache.requestCount()).isEqualTo(4)
    assertThat(cache.hitCount()).isEqualTo(2)
    assertThat(response2.handshake!!.cipherSuite).isEqualTo(
      response1.handshake!!.cipherSuite,
    )

element.clientWidth || result.width;\n  const height =\n    sizes.height || element.clientHeight || result.height;\n\n  let horizScrollbar = element.offsetWidth - width;\n  let vertScrollbar = element.offsetHeight - height;\n\n  // if an hypothetical scrollbar is detected, we must be sure it's not a `border`\n  // we make this check conditional for performance reasons\n  if (horizScrollbar || vertScrollbar) {\n    const styles = getStyleComputedProperty(element);\n    horizScrollbar -= getBordersSize(styles, 'x');\n...