Merge remote-tracking branch 'origin/master' into python_unittests

unittest/testing/core.h

@@ -42,7 +42,7 @@ using ::testing::MatchesRegex;
     }
 
 // whether to print verbose output (i.e. not capturing LAMMPS screen output).
-bool verbose = false;
+extern bool verbose;
 
 class LAMMPSTest : public ::testing::Test {
 public:

unittest/testing/utils.h

@@ -70,6 +70,9 @@ static bool file_exists(const std::string &filename)
 }
 
 #define ASSERT_FILE_EXISTS(NAME) ASSERT_TRUE(file_exists(NAME))
+#define ASSERT_FILE_NOT_EXISTS(NAME) ASSERT_FALSE(file_exists(NAME))
 #define ASSERT_FILE_EQUAL(FILE_A, FILE_B) ASSERT_TRUE(equal_lines(FILE_A, FILE_B))
 
+
+
 #endif