Test case: output styles

Other tests: test-crayon, test-dont, test-figures, test-links, test-lists, test-params, test-verbatim

## Examples

# This example illustrates some important output types
# The following output should be wrapped over multiple lines
a <- 1:100
a#>   [1]   1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18
#>  [19]  19  20  21  22  23  24  25  26  27  28  29  30  31  32  33  34  35  36
#>  [37]  37  38  39  40  41  42  43  44  45  46  47  48  49  50  51  52  53  54
#>  [55]  55  56  57  58  59  60  61  62  63  64  65  66  67  68  69  70  71  72
#>  [73]  73  74  75  76  77  78  79  80  81  82  83  84  85  86  87  88  89  90
#>  [91]  91  92  93  94  95  96  97  98  99 100
cat("This some text!\n")#> This some text!message("This is a message!")#> This is a message!warning("This is a warning!")#> Warning: This is a warning!
# This is a multi-line block
{
1 + 2
2 + 2
}#> [1] 4