[2497] Add tests for OPT, PTR and RP rrtypes

src/lib/dns/tests/rdata_opt_unittest.cc

@@ -56,6 +56,14 @@ TEST_F(Rdata_OPT_Test, createFromWire) {
                  InvalidRdataLength);
 }
 
+TEST_F(Rdata_OPT_Test, createFromLexer) {
+    // OPT RR cannot be created from text.
+    EXPECT_THROW({
+        *test::createRdataUsingLexer(RRType::OPT(), RRClass::IN(),
+                                     "this does not matter");
+    }, InvalidRdataText);
+}
+
 TEST_F(Rdata_OPT_Test, toWireBuffer) {
     rdata_opt.toWire(obuffer);
     EXPECT_EQ(0, obuffer.getLength());

src/lib/dns/tests/rdata_ptr_unittest.cc

@@ -90,6 +90,12 @@ TEST_F(Rdata_PTR_Test, createFromWire) {
                  InvalidRdataLength);
 }
 
+TEST_F(Rdata_PTR_Test, createFromLexer) {
+    EXPECT_EQ(0, rdata_ptr.compare(
+        *test::createRdataUsingLexer(RRType::PTR(), RRClass::IN(),
+                                     "ns.example.com")));
+}
+
 TEST_F(Rdata_PTR_Test, toWireBuffer) {
     rdata_ptr.toWire(obuffer);
     EXPECT_PRED_FORMAT4(UnitTestUtil::matchWireData,

src/lib/dns/tests/rdata_rp_unittest.cc

@@ -106,6 +106,19 @@ TEST_F(Rdata_RP_Test, createFromParams) {
     EXPECT_EQ(text_name, generic::RP(mailbox_name, text_name).getText());
 }
 
+TEST_F(Rdata_RP_Test, createFromLexer) {
+    EXPECT_EQ(0, rdata_rp.compare(
+        *test::createRdataUsingLexer(RRType::RP(), RRClass::IN(),
+                                     "root.example.com. "
+                                     "rp-text.example.com.")));
+
+    // Check that bad input throws as usual
+    EXPECT_THROW({
+        *test::createRdataUsingLexer(RRType::RP(), RRClass::IN(),
+                                     "mailbox.example.com.");
+    }, InvalidRdataText);
+}
+
 TEST_F(Rdata_RP_Test, toWireBuffer) {
     // construct expected data
     UnitTestUtil::readWireData("rdata_rp_toWire1.wire", expected_wire);