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require_relative 'test_helper'
require 'tilt/csv'
describe 'tilt/csv' do
data = (<<END).freeze
# header
csv << ['Type', 'Age']
raise NameError
# rows
csv << ['Frog', 2]
csv << ['Cat', 5]
END
it "registered for '.rcsv' files" do
assert_equal Tilt::CSVTemplate, Tilt['rcsv']
end
it "compiles and evaluates the template on #render" do
template = Tilt::CSVTemplate.new { "csv << ['hello', 'world']" }
assert_equal "hello,world\n", template.render
end
it "can be rendered more than once" do
template = Tilt::CSVTemplate.new { "csv << [1,2,3]" }
3.times { assert_equal "1,2,3\n", template.render }
end
it "can pass locals" do
template = Tilt::CSVTemplate.new { 'csv << [1, name]' }
assert_equal "1,Joe\n", template.render(Object.new, :name => 'Joe')
end
it "evaluating in an object scope" do
template = Tilt::CSVTemplate.new { 'csv << [1, @name]' }
scope = Object.new
scope.instance_variable_set :@name, 'Joe'
assert_equal "1,Joe\n", template.render(scope)
end
it "backtrace file and line reporting" do
template = Tilt::CSVTemplate.new('test.csv') { data }
begin
template.render
fail 'should have raised an exception'
rescue => boom
assert_kind_of NameError, boom
line = boom.backtrace.grep(/\Atest\.csv:/).first
assert line, "Backtrace didn't contain test.csv"
_file, line, _meth = line.split(":")
assert_equal '4', line
end
end
it "passing options to engine" do
template = Tilt::CSVTemplate.new(:col_sep => '|') { 'csv << [1,2,3]' }
assert_equal "1|2|3\n", template.render
end
it "outvar option" do
outvar = '@_output'
scope = Object.new
template = Tilt::CSVTemplate.new(:outvar => outvar) { 'csv << [1,2,3]' }
output = template.render(scope)
assert_equal output, scope.instance_variable_get(outvar.to_sym)
end
end
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