[2512] Add a comment about redundant test

diff --git a/src/lib/dns/tests/rdata_caa_unittest.cc b/src/lib/dns/tests/rdata_caa_unittest.cc
index 40cb1bfb125e3cf6bc4676e8fc993e40c8a2d3e2..e842bd69e9c279ae5a827e2ad68ec6fd6e4a3087 100644 (file)
--- a/src/lib/dns/tests/rdata_caa_unittest.cc
+++ b/src/lib/dns/tests/rdata_caa_unittest.cc
@@ -116,7 +116,8 @@ TEST_F(Rdata_CAA_Test, fields) {
     EXPECT_NO_THROW(const generic::CAA rdata_caa2("0 relaxed-too \"ca.example.net\""));
     EXPECT_NO_THROW(const generic::CAA rdata_caa2("0 RELAXED.too \"ca.example.net\""));
 
-    // No value
+    // No value (this is redundant to the last test case in the
+    // .createFromText test
     EXPECT_NO_THROW(const generic::CAA rdata_caa2("0 issue"));
 
     // > 255 would be broken