A test of courage is something that requires bravery or daring. There are many synonyms for this phrase including a trial of nerve, a feat of valor, a challenge of resolve, an ordeal of pluck, a demonstration of heroism, a proving ground of mettle, a gauntlet of fearlessness, a test of bravery, and a trial of fortitude. Each of these phrases conveys a sense of difficulty or adversity that must be overcome with courage and bravery. Whether facing danger, uncertainty, or adversity, a test of courage requires the ability to act with bravery, fearlessly confronting any obstacles that come one's way.