Metricbeat: Integration tests for haproxy 1.7 and 1.8 #6793
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jsoriano
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| @@ -6,7 +6,7 @@ | |||
| HAPROXY_FIELDS = metricbeat.COMMON_FIELDS + ["haproxy"] | |||
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| class Test(metricbeat.BaseTest): | |||
| class HaproxyTest(metricbeat.BaseTest): | |||
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The reason we aways call it test is that it makes it very easy to run tests manually: nosetest test_haproxy.py:Test.test_*. What about not postfixing this by Test but just call it Haproxy for example and then have
16Test
17Test
18Test
like you have at the bottom.
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Yeah, indeed haproxy is already in the name of the file, I'll change it when I revisit this :)
| "period": "5s" | ||
| }]) | ||
| self._test_stat() | ||
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| class Haproxy_1_6_Test(HaproxyTest): |
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Not for now, but what if we could autogenerate this part? Meaning we would separate the test code from the versions against we want to test. This is getting interesting :-)
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There are ways to generate classes, I could give a try, but I'd wait to see more cases, for example in apache we had to override some parts of the test because each version provides different metrics, it was not only changing the scenario.
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+1 on waiting for some more cases to see how we can generalise it.
| @@ -32,7 +32,7 @@ def test_info_socket(self): | |||
| self.render_config_template(modules=[{ | |||
| "name": "haproxy", | |||
| "metricsets": ["info"], | |||
| "hosts": ["tcp://%s:%d" % (os.getenv('HAPROXY_HOST', 'localhost'), 14567)], | |||
| "hosts": ["tcp://%s:%d" % (self.compose_hosts()[0], 14567)], | |||
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What happens if more then 1 service is running? I think we are fine in this case as there will be only 1 haproxy instance but there are tests which require more then 1 service to be running.
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This method could return a hash with the service name as key, I'll refactor this. It could also return the hash with a list as values, in case some service has multiple replicas, e.g:
{
"proxy": ["172.0.18.1"],
"server": ["172.0.18.2", "172.0.18.3"],
}
I don't know if we have any case with multiple replicas.
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Although if we have different service names for different versions this is not going to work as I'd want, I have to think more about this...
| @@ -43,7 +43,7 @@ The default metricsets are `info`and `stat`. | |||
| [float] | |||
| === Compatibility | |||
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| The HAProxy metricsets were tested with HAProxy 1.6 and are expected to work with all 1.6 versions. | |||
| The HAProxy metricsets are tested with HAProxy versions from 1.6, 1.7 to 1.8. | |||
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Should we find a way to define the supported versions in fields.yml so we can generate this?
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We could have a central place where to define the versions matrix for the tests and use it also to generate doc, yes, this will require further thinking.
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I wonder if it would be enough if we start with an array `version: ["1.7", "2.1", "5.2-alpha"] or if this will not be enough, as we should also have the supported OS in there and for some versions only a subset of metricset works? Perhaps we should also allow to overwrite these values per metricset?
Test haproxy with versions 1.7 and 1.8 apart of 1.5.
It also adds a method to base compose mixin for tests to obtain hosts for tests using docker inspect.