[Buildroot] [PATCH v2 8/8] support/testing: test_optee.py: test optee boot and testsuite

[Etienne Carriere <etienne.carriere@linaro.org>]

Run a Qemu emulation over qemu_armv7a_tz_virt_defconfig and
run the embedded OP-TEE regression test suite (xtest).

Tool xtest dumps traces that contain '# ' (hash + space) which
corrupts infra/emulator.py sequence which use such traces to
find shell prompt when command is completed. To overcome the issue
the xtest traces are shown only if the test failed.

One can run the test from something like:

  $> ./support/testing/run-tests \
       -o output/optee-runtest -d output/dwl \
       tests.package.test_optee

Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
---
Changes v1 -> v2:
  - Add argument local=True to test emulator to use the qemu host
    built from test configuration.
  - Fix typo in trace "Silent test takes a while, be patient..."

---
 support/testing/tests/package/test_optee.py | 40 +++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 support/testing/tests/package/test_optee.py

diff --git a/support/testing/tests/package/test_optee.py b/support/testing/tests/package/test_optee.py
new file mode 100644
index 0000000..fdf391a
--- /dev/null
+++ b/support/testing/tests/package/test_optee.py
@@ -0,0 +1,40 @@
+import os
+
+import infra.basetest
+
+
+class TestOptee(infra.basetest.BRTest):
+
+    with open(os.path.join(os.getcwd(), 'configs/qemu_armv7a_tz_virt_defconfig'), 'r') as config_file:
+        config = "".join(line for line in config_file if line[:1]!='#') + \
+                """
+                BR2_TOOLCHAIN_EXTERNAL=y
+                """
+
+    def test_run(self):
+        qemu_options = ['-machine', 'virt,secure=on']
+        qemu_options.extend(['-cpu', 'cortex-a15'])
+        qemu_options.extend(['-m', '1024'])
+        qemu_options.extend(['-semihosting-config', 'enable,target=native'])
+        qemu_options.extend(['-bios', 'bl1.bin'])
+
+        # Prepare env for Qemu/armv7a to find the boot images
+        os.chdir(os.path.join(self.builddir, 'images'))
+        if not os.path.exists('bl33.bin'):
+            os.symlink('u-boot.bin', 'bl33.bin')
+        if not os.path.exists('bl32.bin'):
+            os.symlink('tee-header_v2.bin', 'bl32.bin')
+        if not os.path.exists('bl32_extra1.bin'):
+            os.symlink('tee-pager_v2.bin', 'bl32_extra1.bin')
+        if not os.path.exists('bl32_extra2.bin'):
+            os.symlink('tee-pageable_v2.bin', 'bl32_extra2.bin')
+
+        self.emulator.boot(arch='armv7', options=qemu_options, local=True)
+        self.emulator.login()
+
+        # Trick test trace since it prints "# " and corrupts emulator run method
+        # Print test trace only if test fails.
+        cmd = 'echo "Silent test takes a while, be patient..."; ' + \
+              'xtest -t regression > /tmp/xtest.log || (cat /tmp/xtest.log && false)'
+        output, exit_code = self.emulator.run(cmd, timeout=240)
+        self.assertEqual(exit_code, 0)
-- 
1.9.1