SERVER-41796 Create Evergreen variant for libfuzzer targets

buildscripts/resmokelib/testing/testcases/cpp_libfuzzer_test.py

@@ -0,0 +1,51 @@
+"""The libfuzzertest.TestCase for C++ libfuzzer tests."""
+
+import subprocess
+import os
+import datetime
+
+from . import interface
+from ... import core
+from ... import utils
+
+class CPPLibfuzzerTestCase(interface.ProcessTestCase):
+    """A C++ libfuzzer test to execute."""
+
+    REGISTERED_NAME = "cpp_libfuzzer_test"
+    DEFAULT_TIMEOUT = datetime.timedelta(hours=1)
+
+    def __init__(self, logger, program_executable, program_options=None):
+        """Initialize the CPPLibfuzzerTestCase with the executable to run."""
+
+        interface.ProcessTestCase.__init__(self, logger, "C++ libfuzzer test", program_executable)
+
+        self.program_executable = program_executable
+        self.program_options = utils.default_if_none(program_options, {}).copy()
+        self.corpus_directory = "corpus/corpus-" + self.short_name()
+
+        os.makedirs(self.corpus_directory, exist_ok=True)
+
+    def _make_process(self):
+        default_args = [self.program_executable, self.corpus_directory, "-max_len=100000", "-rss_limit_mb=5000"]
+        return core.programs.make_process(self.logger, default_args,
+                                          **self.program_options)
+
+    def _execute(self, process):
+        """Run the specified process."""
+        self.logger.info("Starting Libfuzzer Test %s...\n%s", self.short_description(), process.as_command())
+        process.start()
+        self.logger.info("%s started with pid %s.", self.short_description(), process.pid)
+        try:
+            self.return_code = process.wait(self.DEFAULT_TIMEOUT.total_seconds())
+        except subprocess.TimeoutExpired:
+            # If the test timeout, then no errors were detected. Thus, the return code should be 0.
+            process.stop(kill=True)
+            process.wait()
+            self.logger.info("%s timed out. No errors were found.", self.short_description())
+            self.return_code = 0
+
+        if self.return_code != 0:
+            self.logger.info("Failed %s", self.return_code)
+            raise self.failureException("%s failed" % (self.short_description()))
+
+        self.logger.info("%s finished.", self.short_description())