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# frozen_string_literal: true
require "mime/types"
require "minitest_helper"
describe MIME::Types do
def mime_types
@mime_types ||= MIME::Types.new.tap { |mt|
mt.add MIME::Type.new(["text/plain", %w[txt]]),
MIME::Type.new(["image/jpeg", %w[jpg jpeg]]),
MIME::Type.new("application/x-wordperfect6.1"),
MIME::Type.new(
"content-type" => "application/x-www-form-urlencoded",
"registered" => true
),
MIME::Type.new(["application/x-gzip", %w[gz]]),
MIME::Type.new(
"content-type" => "application/gzip",
"extensions" => "gz",
"registered" => true
),
*MIME::Types.type_for("foo.webm")
}
end
describe "is enumerable" do
it "correctly uses an Enumerable method like #any?" do
assert(mime_types.any? { |type| type.content_type == "text/plain" })
end
it "implements each with no parameters to return an Enumerator" do
assert_kind_of Enumerator, mime_types.each
assert_kind_of Enumerator, mime_types.map
end
it "will create a lazy enumerator" do
assert_kind_of Enumerator::Lazy, mime_types.lazy
assert_kind_of Enumerator::Lazy, mime_types.map.lazy
end
it 'is countable with an enumerator' do
assert_equal 8, mime_types.each.count
assert_equal 8, mime_types.lazy.count
end
end
describe "#[]" do
it "can be searched with a MIME::Type" do
text_plain = MIME::Type.new("text/plain")
assert_includes mime_types[text_plain], "text/plain"
assert_equal 1, mime_types[text_plain].size
end
it "can be searched with a regular expression" do
assert_includes mime_types[/plain$/], "text/plain"
assert_equal 1, mime_types[/plain$/].size
end
it "sorts by priority with multiple matches" do
assert_equal %w[application/gzip application/x-gzip], mime_types[/gzip$/]
assert_equal 2, mime_types[/gzip$/].size
end
it "can be searched with a string" do
assert_includes mime_types["text/plain"], "text/plain"
assert_equal 1, mime_types["text/plain"].size
end
it "can be searched with the complete flag" do
assert_empty mime_types[
"application/x-www-form-urlencoded",
complete: true
]
assert_includes mime_types["text/plain", complete: true], "text/plain"
assert_equal 1, mime_types["text/plain", complete: true].size
end
it "can be searched with the registered flag" do
assert_empty mime_types["application/x-wordperfect6.1", registered: true]
refute_empty mime_types[
"application/x-www-form-urlencoded",
registered: true
]
refute_empty mime_types[/gzip/, registered: true]
refute_equal mime_types[/gzip/], mime_types[/gzip/, registered: true]
end
it "properly returns an empty result on a regular expression miss" do
assert_empty mime_types[/^foo/]
assert_empty mime_types[/^foo/, registered: true]
assert_empty mime_types[/^foo/, complete: true]
end
end
describe "#add" do
let(:eruby) { MIME::Type.new("application/x-eruby") }
let(:jinja) { MIME::Type.new("application/jinja2") }
it "successfully adds a new type" do
mime_types.add(eruby)
assert_equal mime_types["application/x-eruby"], [eruby]
end
it "complains about adding a duplicate type" do
mime_types.add(eruby)
assert_output "", /is already registered as a variant/ do
mime_types.add(eruby)
end
assert_equal mime_types["application/x-eruby"], [eruby]
end
it "does not complain about adding a duplicate type when quiet" do
mime_types.add(eruby)
assert_output "", "" do
mime_types.add(eruby, :silent)
end
assert_equal mime_types["application/x-eruby"], [eruby]
end
it "successfully adds from an array" do
mime_types.add([eruby, jinja])
assert_equal mime_types["application/x-eruby"], [eruby]
assert_equal mime_types["application/jinja2"], [jinja]
end
it "successfully adds from another MIME::Types" do
mt = MIME::Types.new
mt.add(mime_types)
assert_equal mime_types.count, mt.count
mime_types.each do |type|
assert_equal mt[type.content_type], [type]
end
end
end
describe "#type_for" do
it "finds all types for a given extension" do
assert_equal %w[application/gzip application/x-gzip],
mime_types.type_for("gz")
end
it "separates the extension from filenames" do
assert_equal %w[image/jpeg], mime_types.of(["foo.jpeg", "bar.jpeg"])
end
it "finds multiple extensions" do
assert_equal %w[image/jpeg text/plain],
mime_types.type_for(%w[foo.txt foo.jpeg])
end
it "does not find unknown extensions" do
keys = mime_types.instance_variable_get(:@extension_index).keys
assert_empty mime_types.type_for("zzz")
assert_equal keys, mime_types.instance_variable_get(:@extension_index).keys
end
it "modifying type extensions causes reindexing" do
plain_text = mime_types["text/plain"].first
plain_text.add_extensions("xtxt")
assert_includes mime_types.type_for("xtxt"), "text/plain"
end
it 'returns a stable order for types with equal priority' do
assert_equal %w(audio/webm video/webm), mime_types.type_for('foo.webm')
end
end
describe '#count' do
it 'can count the number of types inside' do
assert_equal 8, mime_types.count
end
end
end
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