[OE-core] [PATCH 2/2] oeqa/core/runner: OEStreamLogger don't buffer test execution writes

[Aníbal Limón]

Since OEQA framework uses Python logging functionality to report test
results there is a class that wraps PyUnit writes into logging commands
(OEStreamLogger), so don't buffer the actual test execution to have
insight of what is currently executing.

This fix will change a little the test output format adding an '\n'
previous the test result, for example:

From:

test_nonmatching_checksum (lic_checksum.LicenseTests) ... ok

To:

test_nonmatching_checksum (lic_checksum.LicenseTests)
 ... ok

This is because the new line added by the PyUnit StreamLogger because
currently we don't have a manner to identify when a test execution
starts at report level (write msg).

[YOCTO #11827]

Signed-off-by: Aníbal Limón <anibal.limon at linux.intel.com>
---
 meta/lib/oeqa/core/runner.py | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/meta/lib/oeqa/core/runner.py b/meta/lib/oeqa/core/runner.py
index 8a55c24c788..f6539e60b6b 100644
--- a/meta/lib/oeqa/core/runner.py
+++ b/meta/lib/oeqa/core/runner.py
@@ -25,10 +25,14 @@ class OEStreamLogger(object):
 
     def write(self, msg):
         if len(msg) > 1 and msg[0] != '\n':
-            self.buffer += msg
-        else:
-            self.logger.log(logging.INFO, self.buffer.rstrip("\n"))
-            self.buffer = ""
+            if '...' in msg:
+                self.buffer += msg
+            elif self.buffer:
+                self.buffer += msg
+                self.logger.log(logging.INFO, self.buffer)
+                self.buffer = ""
+            else:
+                self.logger.log(logging.INFO, msg)
 
     def flush(self):
         for handler in self.logger.handlers:
-- 
2.11.0