GaxGrpcProperties { public static Pattern getDefaultApiClientHeaderPattern() { return DEFAULT_API_CLIENT_HEADER_PATTERN; } private  GaxGrpcProperties(); static String getGrpcVersion(); static String getGrpcTokenName(); static String getGaxGrpcVersion(); static Pattern getDefaultApiClientHeaderPattern();  }
@Test public void testDefaultHeaderPattern() { assertTrue( GaxGrpcProperties.getDefaultApiClientHeaderPattern() .matcher("gl-java/1.8_00 gapic/1.2.3-alpha gax/1.5.0 grpc/1.7.0") .matches()); }