Commit Graph

108 Commits

Author SHA1 Message Date
Robert Muir 6c8e290322 Allow binding to multiple addresses
* Allow for multiple host specifications (e.g. _en0_,192.168.1.2,_site_).
* Add _site_ and _global_ scopes as counterparts to _local_.
* Warn on heuristic selection of publish address.
* Remove the arbitrary _non_loopback_ setting.

Closes #13954
2015-10-23 23:43:37 -04:00
Nik Everett 2cc97a0d3e Remove and ban @Test
There are three ways `@Test` was used. Way one:

```java
@Test
public void flubTheBlort() {
```

This way was always replaced with:

```java
public void testFlubTheBlort() {
```

Or, maybe with a better method name if I was feeling generous.

Way two:

```java
@Test(throws=IllegalArgumentException.class)
public void testFoo() {
    methodThatThrows();
}
```

This way of using `@Test` is actually pretty OK, but to get the tools to ban
`@Test` entirely it can't be used. Instead:

```java
public void testFoo() {
    try {
        methodThatThrows();
        fail("Expected IllegalArgumentException");
    } catch (IllegalArgumentException e ) {
        assertThat(e.getMessage(), containsString("something"));
    }
}
```

This is longer but tests more than the old ways and is much more precise.
Compare:

```java
@Test(throws=IllegalArgumentException.class)
public void testFoo() {
    some();
    copy();
    and();
    pasted();
    methodThatThrows();
    code();  // <---- This was left here by mistake and is never called
}
```

to:

```java
@Test(throws=IllegalArgumentException.class)
public void testFoo() {
    some();
    copy();
    and();
    pasted();
    try {
        methodThatThrows();
        fail("Expected IllegalArgumentException");
    } catch (IllegalArgumentException e ) {
        assertThat(e.getMessage(), containsString("something"));
    }
}
```

The final use of test is:

```java
@Test(timeout=1000)
public void testFoo() {
    methodThatWasSlow();
}
```

This is the most insidious use of `@Test` because its tempting but tragically
flawed. Its flaws are:
1. Hard and fast timeouts can look like they are asserting that something is
faster and even do an ok job of it when you compare the timings on the same
machine but as soon as you take them to another machine they start to be
invalid. On a slow VM both the new and old methods fail. On a super-fast
machine the slower and faster ways succeed.
2. Tests often contain slow `assert` calls so the performance of tests isn't
sure to predict the performance of non-test code.
3. These timeouts are rude to debuggers because the test just drops out from
under it after the timeout.

Confusingly, timeouts are useful in tests because it'd be rude for a broken
test to cause CI to abort the whole build after it hits a global timeout. But
those timeouts should be very very long "backstop" timeouts and aren't useful
assertions about speed.

For all its flaws `@Test(timeout=1000)` doesn't have a good replacement __in__
__tests__. Nightly benchmarks like http://benchmarks.elasticsearch.org/ are
useful here because they run on the same machine but they aren't quick to check
and it takes lots of time to figure out the regressions. Sometimes its useful
to compare dueling implementations but that requires keeping both
implementations around. All and all we don't have a satisfactory answer to the
question "what do you replace `@Test(timeout=1000)`" with. So we handle each
occurrence on a case by case basis.

For files with `@Test` this also:
1. Removes excess blank lines. They don't help anything.
2. Removes underscores from method names. Those would fail any code style
checks we ever care to run and don't add to readability. Since I did this manually
I didn't do it consistently.
3. Make sure all test method names start with `test`. Some used to end in `Test` or start
with `verify` or `check` and they were picked up using the annotation. Without the
annotation they always need to start with `test`.
4. Organizes imports using the rules we generate for Eclipse. For the most part
this just removes `*` imports which is a win all on its own. It was "required"
to quickly remove `@Test`.
5. Removes unneeded casts. This is just a setting I have enabled in Eclipse and
forgot to turn off before I did this work. It probably isn't hurting anything.
6. Removes trailing whitespace. Again, another Eclipse setting I forgot to turn
off that doesn't hurt anything. Hopefully.
7. Swaps some tests override superclass tests to make them empty with
`assumeTrue` so that the reasoning for the skips is logged in the test run and
it doesn't "look like" that thing is being tested when it isn't.
8. Adds an oxford comma to an error message.

The total test count doesn't change. I know. I counted.
```bash
git checkout master && mvn clean && mvn install | tee with_test
git no_test_annotation master && mvn clean && mvn install | tee not_test
grep 'Tests summary' with_test > with_test_summary
grep 'Tests summary' not_test > not_test_summary
diff with_test_summary not_test_summary
```

These differ somewhat because some tests are skipped based on the random seed.
The total shouldn't differ. But it does!
```
1c1
< [INFO] Tests summary: 564 suites (1 ignored), 3171 tests, 31 ignored (31 assumptions)
---
> [INFO] Tests summary: 564 suites (1 ignored), 3167 tests, 17 ignored (17 assumptions)
```

These are the core unit tests. So we dig further:
```bash
cat with_test | perl -pe 's/\n// if /^Suite/;s/.*\n// if /IGNOR/;s/.*\n// if /Assumption #/;s/.*\n// if /HEARTBEAT/;s/Completed .+?,//' | grep Suite > with_test_suites
cat not_test | perl -pe 's/\n// if /^Suite/;s/.*\n// if /IGNOR/;s/.*\n// if /Assumption #/;s/.*\n// if /HEARTBEAT/;s/Completed .+?,//' | grep Suite > not_test_suites
diff <(sort with_test_suites) <(sort not_test_suites)
```

The four tests with lower test numbers are all extend `AbstractQueryTestCase`
and all have a method that looks like this:

```java
@Override
public void testToQuery() throws IOException {
    assumeTrue("test runs only when at least a type is registered", getCurrentTypes().length > 0);
    super.testToQuery();
}
```

It looks like this method was being double counted on master and isn't anymore.

Closes #14028
2015-10-20 17:37:36 -04:00
Nik Everett 6074f631d0 [test] Convert GCE test to ESTestCase
And work around GCE's annoying security issues that that exposed.

Required for #14069
2015-10-20 14:55:34 -04:00
xuzha 1ae524bace Fix test bug to match windows /r 2015-10-19 12:41:52 -07:00
xuzha 1069ad9fad fix a test bug 2015-10-19 12:06:20 -07:00
xuzha 6a6e168b8b Adding backoff from retries on GCE errors
In case of any error while trying to get GCE instances list from GCE
API, elasticsearch will slow down its API calls.
2015-10-19 10:28:08 -07:00
Robert Muir 5d001d1578 Decentralize plugin security
* Add ability for plugins to declare additional permissions with a custom plugin-security.policy file and corresponding AccessController logic. See the plugin author's guide for more information.
* Add warning messages to users for extra plugin permissions in bin/plugin.
* When bin/plugin is run interactively (stdin is a controlling terminal and -b/--batch not supplied), require user confirmation.
* Improve unit test and IDE support for plugins with additional permissions by exposing plugin's metadata as a maven test resource.

Closes #14108

Squashed commit of the following:

commit cf8ace65a7397aaccd356bf55f95d6fbb8bb571c
Author: Robert Muir <rmuir@apache.org>
Date:   Wed Oct 14 13:36:05 2015 -0400

    fix new unit test from master merge

commit 9be3c5aa38f2d9ae50f3d54924a30ad9cddeeb65
Merge: 2f168b8 7368231
Author: Robert Muir <rmuir@apache.org>
Date:   Wed Oct 14 12:58:31 2015 -0400

    Merge branch 'master' into off_my_back

commit 2f168b8038e32672f01ad0279fb5db77ba902ae8
Author: Robert Muir <rmuir@apache.org>
Date:   Wed Oct 14 12:56:04 2015 -0400

    improve plugin author documentation

commit 6e6c2bfda68a418d92733ac22a58eec35508b2d0
Author: Robert Muir <rmuir@apache.org>
Date:   Wed Oct 14 12:52:14 2015 -0400

    move security confirmation after 'plugin already installed' check, to prevent user from answering unnecessary questions.

commit 08233a2972554afef2a6a7521990283102e20d92
Author: Robert Muir <rmuir@apache.org>
Date:   Wed Oct 14 05:36:42 2015 -0400

    Add documentation and pluginmanager support

commit 05dad86c51488ba43ccbd749f0164f3fbd3aee62
Author: Robert Muir <rmuir@apache.org>
Date:   Wed Oct 14 02:22:24 2015 -0400

    Decentralize plugin permissions (modulo docs and pluginmanager work)
2015-10-14 14:46:45 -04:00
David Pilato c73ab50df1 Rename cloud-gce plugin to discovery-gce plugin
Follow up azure and aws splits, we need to be consistent and rename `cloud-gce` to `discovery-gce`.
2015-10-08 06:53:37 +02:00