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2016-01-29test/py: check for bad patterns everywhere we waitStephen Warren
Currently, bad patterns are only honored when executing a shell command. Other cases, such as the initial boot-up of U-Boot or when interacting with command output rather than gathering all output prior to the shell prompt, do not currently look for bad patterns in console output. This patch makes sure that bad patterns are honored everywhere. One benefit of this change is that if U-Boot sandbox fails to start up, the error message it emits can be caught immediately, rather than relying on a (long) timeout when waiting for the expected signon message and/or command prompt. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org>
2016-01-29test.py: calculate bad patterns on change onlyStephen Warren
A future patch will use the bad_patterns array in multiple places. Rather than duplicating the code to calculate it, or even sharing it in a function and simply calling it redundantly when nothing has changed, only re-calculate the list when some change is made to it. This reduces work. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org>
2016-01-29test/py: fix spawn.expect multiple match handlingStephen Warren
Multiple patterns may be passed to spawn.expect(). The pattern which matches at the earliest position should be designated as the match. This aspect works correctly. When multiple patterns match at the same position, priority should be given the the earliest entry in the list of patterns. This aspect does not work correctly. This patch fixes it. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org>
2016-01-29test/py: Provide custom IDs when parametrizing testsStephen Warren
When pytest generates the name for parametrized tests, simple parameter values (ints, strings) get used directly, but more complex values such as dicts are not handled. This yields test names such as: dfu[env__usb_dev_port0-env__dfu_config0] dfu[env__usb_dev_port0-env__dfu_config1] Add some code to extract a custom fixture ID from the fixture values, so that we end up with meaningful names such as: dfu[micro_b-emmc] dfu[devport2-ram] If the boardenv file doesn't define custom names, the code falls back to the old algorithm. Signed-off-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-01-29test/py: Quote consistencyStephen Warren
When converting test/py from " to ', I missed a few places (or added a few inconsistencies later). Fix these. Note that only quotes in code are converted; double-quotes in comments and HTML are left as-is, since English and HTML use " not '. Signed-off-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-01-29test/py: use " for docstringsStephen Warren
Python's coding style docs indicate to use " not ' for docstrings. test/py has other violations of the coding style docs, since the docs specify a stranger style than I would expect, but nobody has complained about those yet:-) Signed-off-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-01-29test/py: make net test aware of USB and PCI enumerationStephen Warren
The existing net test executes a list of commands supplied by boardenv variable env__net_pre_commands. The idea was that boardenv would know whether the Ethernet device was attached to USB, PCI, ... and hence was the best place to put any commands required to probe the device. However, this approach doesn't scale well when attempting to use a single boardenv across multiple branches of U-Boot, some of which require "pci enum" to enumerate PCI and others of which don't, or don't /yet/ simply because various upstream changes haven't been merged down. This patch updates the test to require that the boardenv state which HW features are required for Ethernet to work, and lets the test itself map that knowledge to the set of commands to execute. Since this mapping is part of the test script, which is part of the U-Boot code/branch, this approach is more scalable. It also feels cleaner, since again boardenv is only providing data, rather than test logic. Signed-off-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-01-29test/py: dfu: error out if USB device already existsStephen Warren
The DFU test requests U-Boot configure its USB controller in device mode, then waits for the host machine to enumerate the USB device and create a device node for it. However, this wait can be fooled if the USB device node already exists before the test starts, e.g. if some previous software stack already configured the USB controller into device mode and never de-configured it. This "previous software stack" could even be another test/py test, if U-Boot's own USB teardown does not operate correctly. If this happens, dfu-util may be run before U-Boot is ready to serve DFU commands, which may cause false test failures. Enhance the dfu test to fail if the device node exists before it is expected to. Signed-off-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-01-29test/py: make crash detection more robustStephen Warren
test/py contains logic to detect the target crashing and rebooting by searching the console output for a U-Boot signon message, which will presumably be emitted when the system boots after the crash/reset. Currently, this logic only searches for the exact signon message that was printed by the U-Boot version under test, upon the assumption that binary is written into flash, and hence will be the version booted after any reset. However, this is not a valid assumption; some test setups download the U-Boot-under-test into RAM and boot it from there, and in such a scenario an arbitrary U-Boot version may be located in flash and hence run after any reset. Fix the reset detection logic to match any U-Boot signon message. This prevents false negatives. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org>
2016-01-29test/py: add a networking testStephen Warren
This tests: - dhcp (if indicated by boardenv file). - Static IP network setup (if provided by boardenv file). - Ping. - TFTP get. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org>
2016-01-29test/py: move find_ram_base() into u_boot_utilsStephen Warren
find_ram_base() is a shared utility function, not a core part of the U-Boot console interaction. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org>
2016-01-29test/py: add DFU testStephen Warren
Add a test of DFU functionality to the Python test suite. The test starts DFU in U-Boot, waits for USB device enumeration on the host, executes dfu-util multiple times to test various transfer sizes, many of which trigger USB driver edge cases, and finally aborts the DFU command in U-Boot. This test mirrors the functionality previously available via the shell scripts in test/dfu, and hence those are removed too. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Lukasz Majewski <l.majewski@samsung.com> Acked-by: Simon Glass <sjg@chromium.org>
2016-01-29test/py: ums: add filesystem-based testingStephen Warren
Enhance the UMS test to optionally mount a partition and read/write a file to it, validating that the content written and read back are identical. This enhancement is backwards-compatible; old boardenv contents that don't define the new configuration data will cause the test code to perform as before. test/ums/ is deleted since the Python test now performs the same testing that it did. The code is also re-written to make use of the recently added utility module, and split it up into nested functions so the overall logic of the test process can be followed more easily without the details cluttering the code. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Lukasz Majewski <l.majewski@samsung.com> Acked-by: Simon Glass <sjg@chromium.org>
2016-01-29test/py: add various utility codeStephen Warren
Add various common utility functions. These will be used by a forthcoming re-written UMS test, and a brand-new DFU test. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org>
2016-01-29test/py: optionally ignore errors from shell commandsStephen Warren
Sometimes it's useful to run shell commands and ignore any errors. One example might be cleanup logic; if a test-case experiences an error, the cleanup logic might experience an error too, and we don't want that error to mask the original error, so we want to ignore the subsequent error. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org>
2016-01-29test/py: log when tests send CTRL-CStephen Warren
Write a note to the log file when a test sends CTRL-C to U-Boot. This makes it easier to follow what's happening in the logs, especially since U-Boot doesn't echo the character back to its output, so there's no other signal of what's going on. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org>
2016-01-29test/py: drain console log at the end of any failed testStephen Warren
Tests may fail for a number of reasons, and in particular for reasons other than a timeout waiting for U-Boot to print expected data. If the last operation that a failed test performs is not waiting for U-Boot to print something, then any trailing output from U-Boot during that test's operation will not be logged as part of that test, but rather either along with the next test, or even thrown away, potentiall hiding clues re: the test failure reason. Solve this by explicitly draining (and hence logging) the U-Boot output in the case of failed tests. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org>
2016-01-29test/py: move U-Boot respawn trigger to the test coreStephen Warren
Prior to this change, U-Boot was lazilly (re-)spawned if/when a test attempted to interact with it, and no active connection existed. This approach was simple, yet had the disadvantage that U-Boot might be spawned in the middle of a test function, e.g. after the test had already performed actions such as creating data files, etc. In that case, this could cause the log to contain the sequence (1) some test logs, (2) U-Boot's boot process, (3) the rest of that test's logs. This isn't optimally readable. This issue will affect the upcoming DFU and enhanced UMS tests. This change converts u_boot_console to be a function-scoped fixture, so that pytest attempts to re-create the object for each test invocation. This allows the fixture factory function to ensure that U-Boot is spawned prior to every test. In practice, the same object is returned each time so there is essentially no additional overhead due to this change. This allows us to remove: - The explicit ensure_spawned() call from test_sleep, since the core now ensures that the spawn happens before the test code is executed. - The laxy calls to ensure_spawned() in the u_boot_console_* implementations. The one downside is that test_env's "state_ttest_env" fixture must be converted to a function-scoped fixture too, since a module-scoped fixture cannot use a function-scoped fixture. To avoid overhead, we use the same trick of returning the same object each time. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org>
2016-01-29test/py: fix timeout to be absoluteStephen Warren
Currently, Spawn.expect() imposes its timeout solely upon receipt of new data, not on its overall operation. In theory, this could cause the timeout not to fire if U-Boot continually generated output that did not match the expected patterns. Fix the code to additionally impose a timeout on overall operation, which is the intended mode of operation. Signed-off-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com> Acked-by: Simon Glass <sjg@chromium.org>
2016-01-21test/py: add a test for the sleep commandStephen Warren
Execute "sleep", and validate that it sleeps for approximately the correct amount of time. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org>
2016-01-21test/py: test the ums commandStephen Warren
This test invokes the "ums" command in U-Boot, and validates that a USB storage device is enumerated on the test host system, and can be read from. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org>
2016-01-21test/py: test the shell if commandStephen Warren
Migrate all most tests from command_ut.c into the Python test system. This allows the tests to be run against any U-Boot binary that supports the if command (i.e. where hush is enabled) without requiring that binary to be permanently bloated with the code from command_ut. Some tests in command_ut.c can only be executed from C code, since they test internal (more unit-level) features of various U-Boot APIs. The migrated tests can all operate directly from the U-Boot console. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org>
2016-01-21test/py: add test of basic shell functionalityStephen Warren
This tests whether the following features of the U-Boot shell: - Execution of a directly entered command. - Compound commands (; delimiter). - Quoting of arguments containing spaces. - Executing commands from environment variables. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org>
2016-01-21test/py: test the md/mw commandsStephen Warren
This tests whether md/mw work, and affect each-other. Command repeat is also tested. test/cmd_repeat.sh is removed, since the new Python-based test does everything it used to. Signed-off-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org>
2016-01-21test/py: add test of setenv/printenv/echoStephen Warren
This tests basic environment variable functionality. Signed-off-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org>
2016-01-21test/py: test that sandbox exits when askedStephen Warren
Test the sandbox port's implementation of the reset command and SIGHUP handling. These should both cause the U-Boot process to exit gracefully. Signed-off-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org>
2016-01-21test/py: Implement pytest infrastructureStephen Warren
This tool aims to test U-Boot by executing U-Boot shell commands using the console interface. A single top-level script exists to execute or attach to the U-Boot console, run the entire script of tests against it, and summarize the results. Advantages of this approach are: - Testing is performed in the same way a user or script would interact with U-Boot; there can be no disconnect. - There is no need to write or embed test-related code into U-Boot itself. It is asserted that writing test-related code in Python is simpler and more flexible that writing it all in C. - It is reasonably simple to interact with U-Boot in this way. A few simple tests are provided as examples. Soon, we should convert as many as possible of the other tests in test/* and test/cmd_ut.c too. The hook scripts, relay control utilities, and udev rules I use for my own HW setup are published at https://github.com/swarren/uboot-test-hooks. See README.md for more details! Signed-off-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Stephen Warren <swarren@nvidia.com> Tested-by: Michal Simek <michal.simek@xilinx.com> Tested-by: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org> #v3