trunner: add capability to assert sending long commands due to ash li…

…ne wrap up

JIRA: CI-307

fs_mark/fs_mark_clean.c

@@ -66,6 +66,8 @@ int remove_dir_recursive(const char *dirPath)
 			return -1;
 		}
 	}
+
+	return ret;
 }
 
 int main(int argc, char **argv)

trunner/harness/psh.py

@@ -72,7 +72,15 @@ def __call__(self, result: TestResult) -> TestResult:
         if self.cmd is not None:
             self.dut.send(self.cmd + "\n")
             try:
-                self.dut.expect(f"{self.cmd}(\r+)\n")
+                # ash wraps up lines longer than 80 characters
+                if len(self.cmd) <= 80 - len(self.prompt):
+                    self.dut.expect(f"{self.cmd}(\r+)\n")
+                else:
+                    full_cmd = ""
+                    while full_cmd not in self.cmd:
+                        self.dut.expect("(\r+)\n")
+                        full_cmd += self.dut.before
+
             except (pexpect.TIMEOUT, pexpect.EOF) as e:
                 raise ShellError(
                     msg="Couldn't find the echoed command!",