Added test script for validate task

Testing/test_validate.cpp

@@ -0,0 +1,35 @@
+#define CATCH_CONFIG_MAIN
+#include "catch.hpp"
+
+
+SCENARIO( "CMakeFile has been updated" )
+{
+    // open file
+    const std::string filename = "CMakeLists.txt";
+    std::ifstream file( filename );
+
+    if( !file.is_open() )
+        FAIL( "Could not open " + filename );
+
+    // declare regexes
+    std::vector< std::tuple<std::regex,std::string,size_t> > regexes 
+        { { std::regex( "^[^#]*add_executable\\s*\\(\\s*validate\\s.*validate.cpp.*\\)" ), "add_executable", 0 }, 
+          { std::regex( "^[^#]*add_library\\s*\\(\\s*[\\w]{1,}\\s{1,}.*passwords.cpp.*\\)" ), "add_library", 0 },
+          { std::regex( "^[^#]*target_link_libraries\\s*\\(\\s*validate\\s.*\\)" ), "target_link_libraries", 0 } };
+    std::smatch match;
+
+    // process file
+    std::string line;
+    while( std::getline( file, line ) )
+        for( auto &re : regexes )
+        {
+            if( std::regex_match( line, match, std::get<0>(re) ) )
+                std::get<2>(re)++;
+        }
+
+    // check all regexes matched
+    for( auto &re : regexes )
+        if( !std::get<2>(re) )
+            FAIL( "Could not find expected \"" + std::get<1>(re) + "\" statement" );
+}
+