To be able to run JTReg tests, configure needs to know where to find the JTReg test framework. If it is not picked up automatically by configure, use the --with-jtreg=<path to jtreg home> option to point to the JTReg framework. Note that this option should point to the JTReg home, i.e. the top directory, containing lib/jtreg.jar etc. (An alternative is to set the JT_HOME environment variable to point to the JTReg home before running configure.)
configure
--with-jtreg=<path to jtreg home>
lib/jtreg.jar
JT_HOME
All functionality is available using the run-test make target. In this use case, the test or tests to be executed is controlled using the TEST variable. To speed up subsequent test runs with no source code changes, run-test-only can be used instead, which do not depend on the source and test image build.
TEST
For some common top-level tests, direct make targets have been generated. This includes all JTreg test groups, the hotspot gtest, and custom tests (if present). This means that make run-test-tier1 is equivalent to make run-test TEST="tier1", but the latter is more tab-completion friendly. For more complex test runs, the run-test TEST="x" solution needs to be used.
make run-test-tier1
make run-test TEST="tier1"
run-test TEST="x"
For some common top-level tests, direct make targets have been generated. This includes all JTReg test groups, the hotspot gtest, and custom tests (if present). This means that make run-test-tier1 is equivalent to make run-test TEST="tier1", but the latter is more tab-completion friendly. For more complex test runs, the run-test TEST="x" solution needs to be used.
The test specifications given in TEST is parsed into fully qualified test descriptors, which clearly and unambigously show which tests will be run. As an example, :tier1 will expand to jtreg:jdk/test:tier1 jtreg:langtools/test:tier1 jtreg:nashorn/test:tier1 jtreg:jaxp/test:tier1. You can always submit a list of fully qualified test descriptors in the TEST variable if you want to shortcut the parser.
:tier1
jtreg:jdk/test:tier1 jtreg:langtools/test:tier1 jtreg:nashorn/test:tier1 jtreg:jaxp/test:tier1
JTreg test groups can be specified either without a test root, e.g. :tier1 (or tier1, the initial colon is optional), or with, e.g. hotspot/test:tier1, jdk/test:jdk_util.
tier1
hotspot/test:tier1
jdk/test:jdk_util
JTReg test groups can be specified either without a test root, e.g. :tier1 (or tier1, the initial colon is optional), or with, e.g. hotspot/test:tier1, jdk/test:jdk_util.
When specified without a test root, all matching groups from all tests roots will be added. Otherwise, only the group from the specified test root will be added.
Individual JTreg tests or directories containing JTreg tests can also be specified, like hotspot/test/native_sanity/JniVersion.java or hotspot/test/native_sanity. You can also specify an absolute path, to point to a JTreg test outside the source tree.
hotspot/test/native_sanity/JniVersion.java
hotspot/test/native_sanity
Individual JTReg tests or directories containing JTReg tests can also be specified, like hotspot/test/native_sanity/JniVersion.java or hotspot/test/native_sanity. You can also specify an absolute path, to point to a JTReg test outside the source tree.
As long as the test groups or test paths can be uniquely resolved, you do not need to enter the jtreg: prefix. If this is not possible, or if you want to use a fully qualified test descriptor, add jtreg:, e.g. jtreg:hotspot/test/native_sanity.
jtreg:
jtreg:hotspot/test/native_sanity
Since the Hotspot Gtest suite is so quick, the default is to run all tests. This is specified by just gtest, or as a fully qualified test descriptor gtest:all.
gtest
gtest:all
Tests where the number of TOTAL tests does not equal the number of PASSed tests will be considered a test failure. These are marked with the >> ... << marker for easy identification.
>> ... <<
The classification of non-passed tests differs a bit between test suites. In the summary, ERROR is used as a catch-all for tests that neither passed nor are classified as failed by the framework. This might indicate test framework error, timeout or other problems.
In case of test failures, make run-test will exit with a non-zero exit value.
make run-test
All tests have their result stored in build/$BUILD/test-result/$TEST_ID, where TEST_ID is a path-safe conversion from the fully qualified test descriptor, e.g. for jtreg:jdk/test:tier1 the TEST_ID is jtreg_jdk_test_tier1. This path is also printed in the log at the end of the test run.
build/$BUILD/test-result/$TEST_ID
jtreg:jdk/test:tier1
jtreg_jdk_test_tier1
All tests have their result stored in build/$BUILD/test-results/$TEST_ID, where TEST_ID is a path-safe conversion from the fully qualified test descriptor, e.g. for jtreg:jdk/test:tier1 the TEST_ID is jtreg_jdk_test_tier1. This path is also printed in the log at the end of the test run.
build/$BUILD/test-results/$TEST_ID
Additional work data is stored in build/$BUILD/test-support/$TEST_ID. For some frameworks, this directory might contain information that is useful in determining the cause of a failed test.
build/$BUILD/test-support/$TEST_ID
It is possible to control various aspects of the test suites using make control variables.
These variables use a keyword=value approach to allow multiple values to be set. So, for instance, JTREG="JOBS=1;TIMEOUT=8" will set the JTreg concurrency level to 1 and the timeout factor to 8. This is equivalent to setting JTREG_JOBS=1 JTREG_TIMEOUT=8, but using the keyword format means that the JTREG variable is parsed and verified for correctness, so JTREG="TMIEOUT=8" would give an error, while JTREG_TMIEOUT=8 would just pass unnoticed.
JTREG="JOBS=1;TIMEOUT=8"
JTREG_JOBS=1 JTREG_TIMEOUT=8
JTREG
JTREG="TMIEOUT=8"
JTREG_TMIEOUT=8
These variables use a keyword=value approach to allow multiple values to be set. So, for instance, JTREG="JOBS=1;TIMEOUT=8" will set the JTReg concurrency level to 1 and the timeout factor to 8. This is equivalent to setting JTREG_JOBS=1 JTREG_TIMEOUT=8, but using the keyword format means that the JTREG variable is parsed and verified for correctness, so JTREG="TMIEOUT=8" would give an error, while JTREG_TMIEOUT=8 would just pass unnoticed.
To separate multiple keyword=value pairs, use ; (semicolon). Since the shell normally eats ;, the recommended usage is to write the assignment inside qoutes, e.g. JTREG="...;...". This will also make sure spaces are preserved, as in JTREG="VM_OTIONS=-XshowSettings -Xlog:gc+ref=debug".
;
JTREG="...;..."
JTREG="VM_OTIONS=-XshowSettings -Xlog:gc+ref=debug"
(Other ways are possible, e.g. using backslash: JTREG=JOBS=1\;TIMEOUT=8. Also, as a special technique, the string %20 will be replaced with space for certain options, e.g. JTREG=VM_OTIONS=-XshowSettings%20-Xlog:gc+ref=debug. This can be useful if you have layers of scripts and have trouble getting proper quoting of command line arguments through.)
JTREG=JOBS=1\;TIMEOUT=8
%20
JTREG=VM_OTIONS=-XshowSettings%20-Xlog:gc+ref=debug
As far as possible, the names of the keywords have been standardized between test suites.
The test concurrency (-concurrency).
-concurrency
Defaults to TEST_JOBS (if set by --with-test-jobs=), otherwise it defaults to JOBS, except for Hotspot, where the default is number of CPU cores/2, but never more than 12.
--with-test-jobs=
Defaults to fail,error.
fail,error
Limit memory consumption (-Xmx and -vmoption:-Xmx, or none).
-Xmx
-vmoption:-Xmx
Limit memory consumption for JTreg test framework and VM under test. Set to 0 to disable the limits.
Limit memory consumption for JTReg test framework and VM under test. Set to 0 to disable the limits.
Defaults to 512m, except for hotspot, where it defaults to 0 (no limit).
Additional options to the JTreg test framework.
Use JTREG="OPTIONS=--help all" to see all available JTreg options.
JTREG="OPTIONS=--help all"
Additional options to the JTReg test framework.
Use JTREG="OPTIONS=--help all" to see all available JTReg options.
Additional Java options to JTreg (-javaoption).
-javaoption
Additional Java options to JTReg (-javaoption).
Additional VM options to JTreg (-vmoption).
-vmoption
Additional VM options to JTReg (-vmoption).
The number of times to repeat the tests (--gtest_repeat).
--gtest_repeat