Set limit for number of failed EXPECTs per test in test launcher output.

base/test/gtest_xml_unittest_result_printer.h

Index: base/test/gtest_xml_unittest_result_printer.h
diff --git a/base/test/gtest_xml_unittest_result_printer.h b/base/test/gtest_xml_unittest_result_printer.h
index cce5e88023a045f0de48486ee35de995a980d3df..fee39e82f30bef74a2eb89c69be25ea3e300af7b 100644
--- a/base/test/gtest_xml_unittest_result_printer.h
+++ b/base/test/gtest_xml_unittest_result_printer.h
@@ -22,6 +22,19 @@ class XmlUnitTestResultPrinter : public testing::EmptyTestEventListener {
   XmlUnitTestResultPrinter();
   ~XmlUnitTestResultPrinter() override;
 
+  // Some tests may contain broken EXPECT with a large message inside a loop
+  // with several thousands iterations and produce huge output (several
+  // gigabytes). Limit number of serialized test result parts to prevent it.
+  // Zero value disables test part results.
+  // Negative value disables limit.
+  void set_test_part_results_limit(int limit) {

[Paweł Hajdan Jr., 2017/05/05 17:33:03]

Instead of a setter, can we make this class read corresponding command-line flag
directly?

[alex-ac, 2017/05/07 12:07:24]

Done.

+    test_part_results_limit_ = limit;
+  }
+  int test_part_results_limit() const { return test_part_results_limit_; }
+  bool has_test_part_results_limit() const {
+    return test_part_results_limit_ >= 0;
+  }
+
   // Must be called before adding as a listener. Returns true on success.
   bool Initialize(const FilePath& output_file_path) WARN_UNUSED_RESULT;
 
@@ -45,6 +58,7 @@ class XmlUnitTestResultPrinter : public testing::EmptyTestEventListener {
                            const std::string& message);
 
   FILE* output_file_;
+  int test_part_results_limit_;
 
   DISALLOW_COPY_AND_ASSIGN(XmlUnitTestResultPrinter);
 };