[PATCH 19/20] tests/functional: remove hacky sleep from the tests

[Alex Bennée]

We have proper detection of prompts now so we don't need to guess with
sleep() sprinkled through the test. The extra step of calling halt is
just to flush the final bits of the log (although the last line is
still missed).

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
---
 tests/functional/test_aarch64_virt.py | 22 ++++++++++------------
 1 file changed, 10 insertions(+), 12 deletions(-)

diff --git a/tests/functional/test_aarch64_virt.py 
b/tests/functional/test_aarch64_virt.py
index c967da41b4..801300607c 100755
--- a/tests/functional/test_aarch64_virt.py
+++ b/tests/functional/test_aarch64_virt.py
@@ -107,18 +107,16 @@ def common_aarch64_virt(self, machine):
                          'virtio-blk-device,drive=scratch')
 
         self.vm.launch()
-        self.wait_for_console_pattern('Welcome to Buildroot')
-        time.sleep(0.1)
-        exec_command(self, 'root')
-        time.sleep(0.1)
-        exec_command(self, 'dd if=/dev/hwrng of=/dev/vda bs=512 count=4')
-        time.sleep(0.1)
-        exec_command(self, 'md5sum /dev/vda')
-        time.sleep(0.1)
-        exec_command(self, 'cat /proc/interrupts')
-        time.sleep(0.1)
-        exec_command(self, 'cat /proc/self/maps')
-        time.sleep(0.1)
+
+        ps1='#'
+        self.wait_for_console_pattern('login:')
+        exec_command_and_wait_for_pattern(self, 'root', ps1)
+        exec_command_and_wait_for_pattern(self, 'cat /proc/interrupts', ps1)
+        exec_command_and_wait_for_pattern(self, 'cat /proc/self/maps', ps1)
+        exec_command_and_wait_for_pattern(self, 'uname -a', ps1)
+        exec_command_and_wait_for_pattern(self, 'dd if=/dev/hwrng of=/dev/vda 
bs=512 count=4', ps1)
+        exec_command_and_wait_for_pattern(self, 'md5sum /dev/vda', ps1)
+        exec_command_and_wait_for_pattern(self, 'halt -n', 'reboot: System 
halted')
 
     def test_aarch64_virt_gicv3(self):
         self.common_aarch64_virt("virt,gic_version=3")
-- 
2.39.5