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# frozen_string_literal: false
require_relative "../helper"
class TestCSVInterfaceWrite < Test::Unit::TestCase
extend DifferentOFS
def setup
super
@output = Tempfile.new(["interface-write", ".csv"])
end
def teardown
@output.close(true)
super
end
def test_generate_default
csv_text = CSV.generate do |csv|
csv << [1, 2, 3] << [4, nil, 5]
end
assert_equal(<<-CSV, csv_text)
1,2,3
4,,5
CSV
end
def test_generate_append
csv_text = <<-CSV
1,2,3
4,,5
CSV
CSV.generate(csv_text) do |csv|
csv << ["last", %Q{"row"}]
end
assert_equal(<<-CSV, csv_text)
1,2,3
4,,5
last,"""row"""
CSV
end
def test_generate_no_new_line
csv_text = CSV.generate("test") do |csv|
csv << ["row"]
end
assert_equal(<<-CSV, csv_text)
testrow
CSV
end
def test_generate_line_col_sep
line = CSV.generate_line(["1", "2", "3"], col_sep: ";")
assert_equal(<<-LINE, line)
1;2;3
LINE
end
def test_generate_line_row_sep
line = CSV.generate_line(["1", "2"], row_sep: nil)
assert_equal(<<-LINE.chomp, line)
1,2
LINE
end
def test_generate_line_shortcut
line = ["1", "2", "3"].to_csv(col_sep: ";")
assert_equal(<<-LINE, line)
1;2;3
LINE
end
def test_headers_detection
headers = ["a", "b", "c"]
CSV.open(@output.path, "w", headers: true) do |csv|
csv << headers
csv << ["1", "2", "3"]
assert_equal(headers, csv.headers)
end
end
def test_lineno
CSV.open(@output.path, "w") do |csv|
n_lines = 20
n_lines.times do
csv << ["a", "b", "c"]
end
assert_equal(n_lines, csv.lineno)
end
end
def test_append_row
CSV.open(@output.path, "wb") do |csv|
csv <<
CSV::Row.new([], ["1", "2", "3"]) <<
CSV::Row.new([], ["a", "b", "c"])
end
assert_equal(<<-CSV, File.read(@output.path, mode: "rb"))
1,2,3
a,b,c
CSV
end
def test_append_hash
CSV.open(@output.path, "wb", headers: true) do |csv|
csv << [:a, :b, :c]
csv << {a: 1, b: 2, c: 3}
csv << {a: 4, b: 5, c: 6}
end
assert_equal(<<-CSV, File.read(@output.path, mode: "rb"))
a,b,c
1,2,3
4,5,6
CSV
end
def test_append_hash_headers_array
CSV.open(@output.path, "wb", headers: [:b, :a, :c]) do |csv|
csv << {a: 1, b: 2, c: 3}
csv << {a: 4, b: 5, c: 6}
end
assert_equal(<<-CSV, File.read(@output.path, mode: "rb"))
2,1,3
5,4,6
CSV
end
def test_append_hash_headers_string
CSV.open(@output.path, "wb", headers: "b|a|c", col_sep: "|") do |csv|
csv << {"a" => 1, "b" => 2, "c" => 3}
csv << {"a" => 4, "b" => 5, "c" => 6}
end
assert_equal(<<-CSV, File.read(@output.path, mode: "rb"))
2|1|3
5|4|6
CSV
end
def test_write_headers
CSV.open(@output.path,
"wb",
headers: "b|a|c",
write_headers: true,
col_sep: "|" ) do |csv|
csv << {"a" => 1, "b" => 2, "c" => 3}
csv << {"a" => 4, "b" => 5, "c" => 6}
end
assert_equal(<<-CSV, File.read(@output.path, mode: "rb"))
b|a|c
2|1|3
5|4|6
CSV
end
def test_write_headers_empty
CSV.open(@output.path,
"wb",
headers: "b|a|c",
write_headers: true,
col_sep: "|" ) do |csv|
end
assert_equal(<<-CSV, File.read(@output.path, mode: "rb"))
b|a|c
CSV
end
def test_options_not_modified
options = {}.freeze
CSV.generate(**options) {}
CSV.generate_line([], **options)
CSV.filter("", "", **options)
CSV.instance("", **options)
end
end
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