BIND 10 trac2375, updated. 89a6e668f647c323849e78449f00efad1ca624c4 [2375] A fake state class

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- Log -----------------------------------------------------------------
commit 89a6e668f647c323849e78449f00efad1ca624c4
Author: Michal 'vorner' Vaner <michal.vaner at nic.cz>
Date:   Mon Nov 12 19:24:21 2012 +0100

    [2375] A fake state class

-----------------------------------------------------------------------

Summary of changes:
 src/lib/dns/master_lexer.cc                |    5 +++++
 src/lib/dns/master_lexer_state.h           |    5 +++++
 src/lib/dns/tests/master_lexer_unittest.cc |   29 ++++++++++++++++++++++++++++
 3 files changed, 39 insertions(+)

-----------------------------------------------------------------------
diff --git a/src/lib/dns/master_lexer.cc b/src/lib/dns/master_lexer.cc
index f4ded23..76c40e1 100644
--- a/src/lib/dns/master_lexer.cc
+++ b/src/lib/dns/master_lexer.cc
@@ -178,6 +178,11 @@ State::getParenCount(const MasterLexer& lexer) const {
     return (lexer.impl_->paren_count_);
 }
 
+void
+State::setToken(MasterLexer& lexer, const Token& token) {
+    lexer.impl_->token_ = token;
+}
+
 class CRLF : public State {
 public:
     CRLF() {}
diff --git a/src/lib/dns/master_lexer_state.h b/src/lib/dns/master_lexer_state.h
index 0d00049..aad557e 100644
--- a/src/lib/dns/master_lexer_state.h
+++ b/src/lib/dns/master_lexer_state.h
@@ -126,6 +126,11 @@ protected:
     MasterLexer::MasterLexerImpl* getLexerImpl(MasterLexer& lexer) const {
         return (lexer.impl_);
     }
+
+    /// \brief Set the token in master lexer.
+    ///
+    /// The reason is similar as with getLexerImpl.
+    void setToken(MasterLexer& lexer, const MasterLexer::Token& token) const;
 };
 
 } // namespace master_lexer_internal
diff --git a/src/lib/dns/tests/master_lexer_unittest.cc b/src/lib/dns/tests/master_lexer_unittest.cc
index 34d9ab7..0b19984 100644
--- a/src/lib/dns/tests/master_lexer_unittest.cc
+++ b/src/lib/dns/tests/master_lexer_unittest.cc
@@ -15,10 +15,12 @@
 #include <exceptions/exceptions.h>
 
 #include <dns/master_lexer.h>
+#include <dns/master_lexer_state.h>
 
 #include <gtest/gtest.h>
 
 #include <boost/lexical_cast.hpp>
+#include <boost/function.hpp>
 
 #include <string>
 #include <sstream>
@@ -30,6 +32,33 @@ using boost::lexical_cast;
 
 namespace {
 
+// A fake state that just eats something from the input, pushes
+// a given token and calls a callback if it is set. It refers to
+// another state to return.
+class FakeState : public master_lexer_internal::State {
+public:
+    FakeState(const State* next, MasterLexer::Token* token = NULL,
+              const boost::function<void ()>& callback =
+              boost::function<void ()>()) :
+        next_(next),
+        token_(token),
+        callback_(callback)
+    {}
+    virtual const State* handle(MasterLexer& lexer) const {
+        if (token_ != NULL) {
+            setToken(lexer, *token_);
+        }
+        if (!callback_.empty()) {
+            callback_();
+        }
+        return (next_);
+    }
+private:
+    const State* const next_;
+    MasterLexer::Token* const token_;
+    const boost::function<void ()> callback_;
+};
+
 class MasterLexerTest : public ::testing::Test {
 protected:
     MasterLexerTest() :