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$LOAD_PATH.unshift(File.join(File.dirname(__FILE__), '..', 'lib'))
require 'prawn'
require 'benchmark'
# Helpers for benchmark
class String
CHARS = ('a'..'z').to_a
def self.random(length)
Array.new(length) { CHARS.sample }.join
end
end
def data_for_table(columns, rows, string_size)
Array.new(rows) { Array.new(columns) { String.random(string_size) } }
end
def benchmark_table_generation(columns, rows, string_size, options = {})
data = data_for_table(columns, rows, string_size)
Benchmark.bm do |x|
x.report(
"#{columns}x#{rows} table (#{columns * rows} cells, with #{string_size} "\
'char string contents' \
"#{", options = #{options.inspect}" unless options.empty?})"
) do
Prawn::Document.new { table(data, options) }.render
end
end
end
# Slowest case: styled table, which is very squeezed horizontally,
# so text has to be wrapped
benchmark_table_generation(
26, 50, 10,
row_colors: %w[FFFFFF F0F0FF],
header: true,
cell_style: { inline_format: true }
)
# Try building and rendering tables of different sizes
benchmark_table_generation(10, 400, 5)
benchmark_table_generation(10, 200, 5)
benchmark_table_generation(10, 100, 5)
# Try different optional arguments to Prawn::Document#table
benchmark_table_generation(10, 450, 5, cell_style: { inline_format: true })
benchmark_table_generation(
10, 450, 5,
row_colors: %w[FFFFFF F0F0FF],
header: true,
cell_style: { inline_format: true }
)
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