tests: add interactive_sync adapted to shell

dist/pythonlibs/testrunner/utils.py

@@ -9,19 +9,33 @@
 import pexpect
 
 
-def test_utils_interactive_sync(child, retries, delay):
-    """Synchronisation for 'test_utils_interactive_sync' function.
+def _test_utils_interactive_sync(child, retries, delay, ready_cmd='r',
+                                 ready_exp='READY'):
 
-    Interacts through input to wait for node being ready.
-    """
-    for _ in range(0, retries):
-        child.sendline('r')
-        ret = child.expect_exact(['READY', pexpect.TIMEOUT], timeout=delay)
+    for _ in range(retries):
+        child.sendline(ready_cmd)
+        ret = child.expect_exact([ready_exp, pexpect.TIMEOUT], timeout=delay)
         if ret == 0:
             break
     else:
-        # Last call to make it fail her,
-        child.expect_exact('READY', timeout=0)
+        # Last call to make it fail here,
+        child.expect_exact(ready_exp, timeout=0)
 
+
+def test_utils_interactive_sync(child, retries, delay):
+    """Synchronization for 'test_utils_interactive_sync' function
+
+    Interacts through input to wait for node being ready.
+    """
+    _test_utils_interactive_sync(child, retries, delay)
     child.sendline('s')
     child.expect_exact('START')
+
+
+def test_utils_interactive_sync_shell(child, retries, delay):
+    """Synchronization `shell` and `test_utils_interactive_sync` modules are
+    used ('test_utils_interactive_sync' function is not)
+
+    Interacts through input to wait for node being ready.
+    """
+    _test_utils_interactive_sync(child, retries, delay, '\n', '>')