fails:ERB.new compiles eRuby script into ruby code when trim mode is 0 or not specified
fails:ERB.new remove "\\n" when trim_mode is 1 or '>'
fails:ERB.new remove spaces at beginning of line and "\\n" when trim_mode is 2 or '<>'
fails:ERB.new removes spaces around '<%- -%>' when trim_mode is '-'
fails:ERB.new regards lines starting with '%' as '<% ... %>' when trim_mode is '%'
fails:ERB.new regards lines starting with '%' as '<% ... %>' and remove "\\n" when trim_mode is '%>'
fails:ERB.new regard lines starting with '%' as '<% ... %>' and remove "\\n" when trim_mode is '%<>'
fails:ERB.new regard lines starting with '%' as '<% ... %>' and spaces around '<%- -%>' when trim_mode is '%-'
fails:ERB.new accepts a safe level as second argument
fails:ERB.new changes '_erbout' variable name in the produced source
fails:ERB.new ignores '<%# ... %>'
