This commit moves many features of individual distro tests into the base
class so that other test cases can utilize them. It also standardizes
the pattern for tests adding assumptions for the particular
distributions to test.
Most of our CLI tools use the Terminal class, which previously did not provide methods for writing to standard output. When all output goes to standard out, there are two basic problems. First, errors and warnings are "swallowed" in pipelines, making it hard for a user to know when something's gone wrong. Second, errors and warnings are intermingled with legitimate output, making it difficult to pass the results of interactive scripts to other tools.
This commit adds a second set of print commands to Terminal for printing to standard error, with errorPrint corresponding to print and errorPrintln corresponding to println. This leaves it to developers to decide which output should go where. It also adjusts existing commands to send errors and warnings to stderr.
Usage is printed to standard output when it's correctly requested (e.g., bin/elasticsearch-keystore --help) but goes to standard error when a command is invoked incorrectly (e.g. bin/elasticsearch-keystore list-with-a-typo | sort).
The java based distribution tests currently have a single Tests class
which encapsulates all of the tests for a particular distribution. The
test task in gradle then depends on all distributions being built, and
each individual tests class looks for the particular distribution it is
trying to test. This means that reproducing a single test failure
triggers all the distributions to be built, even though only one is
needed for the test.
This commit reworks the java distribution tests to pass in a particular
distribution to be tested, and changes the base test classes to be
actual test classes which have assumptions around which distributions
they operate on. For example, the archives tests will be skipped when
run with an rpm distribution, and vice versa for the package tests. This
makes reproduction much more granular. It also also better splitting up
tests around a particular use case. For example, all tests for systemd
behavior can be in one test class, and run independently of all tests
against rpm/deb distributions.
This commit addresses an issue when trying to using Elasticsearch on
systems with Sys V init and the bundled JDK was not being used. Instead,
we were still inadvertently trying to fallback on the path. This commit
removes that fallback as that is against our intentions for 7.x where we
only support the bundled JDK or an explicit JDK via JAVA_HOME.
The system level tests for our distributions have historically be run in
vagrant, and thus the name of the gradle project has been "vagrant".
However, as we move to running these tests in other environments (eg
GCP) the name vagrant no longer makes sense. This commit renames the
project to "os" (short for operating system), since these tests ensure
all of our distributions run correctly on our supported operating
systems.
Ryan Ernst
William Brafford
Jason Tedor