text: #!/usr/bin/env bats
  
  load test_helper
  
  @test 'assert() <expression>: returns 0 if <expression> evaluates to TRUE' {
    run assert true
    [ "$status" -eq 0 ]
    [ "${#lines[@]}" -eq 0 ]
  }
  
  @test 'assert() <expression>: returns 1 and displays <expression> if it evaluates to FALSE' {
    run assert false
    [ "$status" -eq 1 ]
    [ "${#lines[@]}" -eq 3 ]
    [ "${lines[0]}" == '-- assertion failed --' ]
    [ "${lines[1]}" == 'expression : false' ]
    [ "${lines[2]}" == '--' ]
  }
  