The countries are the first new additions to cricket's top table since Bangladesh were given the right to play Test matches in 2000.

Both nations are now full members of the ICC following a unanimous vote by the governing body's Full Council at The Oval in London.

There are now 12 sides at Test match level, where games are played over five days.

"I'd like to congratulate Afghanistan and Ireland on their full membership status which is the result of their dedication to improving performance both off and on the field resulting in the significant development and growth of cricket in their respective countries," said ICC chief executive David Richardson.

"Both have clearly demonstrated they meet the new criteria and as such have made the progression to full membership.”

Afghanistan and Ireland have both claimed notable scalps of Test playing sides in limited overs cricket on their route to being accepted.

"For a nation like Afghanistan it is a huge and remarkable achievement, the entire nation will be celebrating across all five regions and different provinces, it is the perfect Eid gift," said Afghanistan Cricket Board chief executive Shafiq Stanikzai. 

"Everyone has waited for this news and has been so keen to hear this news. 

"Afghanistan cricket has gone from strength to strength and we dared to dream that this would happen and today it has become a reality."

Cricket Ireland chief executive Warren Deutrom added: "We are delighted and proud with today’s historic announcement. 

"It is an extraordinary testament to the talent and endeavour of thousands of passionate players, coaches, volunteers, staff, clubs and committee people."