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| | # -*- encoding: binary -*-
# Copyright (C) 2013, Eric Wong <normalperson@yhbt.net>
# License: GPLv3 or later (https://www.gnu.org/licenses/gpl-3.0.txt)
require './test/helper'
require 'tempfile'
require 'dtas/format'
class TestFormat < Minitest::Unit::TestCase
def test_initialize
fmt = DTAS::Format.new
assert_equal %w(-ts32 -c2 -r44100), fmt.to_sox_arg
hash = fmt.to_hsh
assert_equal({}, hash)
end
def test_nonstandard
fmt = DTAS::Format.new
fmt.type = "s16"
fmt.rate = 48000
fmt.channels = 4
hash = fmt.to_hsh
assert_kind_of Hash, hash
assert_equal %w(channels rate type), hash.keys.sort
assert_equal "s16", hash["type"]
assert_equal 48000, hash["rate"]
assert_equal 4, hash["channels"]
# back to stereo
fmt.channels = 2
hash = fmt.to_hsh
assert_equal %w(rate type), hash.keys.sort
assert_equal "s16", hash["type"]
assert_equal 48000, hash["rate"]
assert_nil hash["channels"]
end
def test_from_file
Tempfile.open(%w(tmp .wav)) do |tmp|
# generate an empty file with 1s of audio
cmd = %W(sox -r 96000 -b 24 -c 2 -n #{tmp.path} trim 0 1)
system(*cmd)
assert $?.success?, "#{cmd.inspect} failed: #$?"
fmt = DTAS::Format.new
fmt.from_file tmp.path
assert_equal 96000, fmt.rate
assert_equal 2, fmt.channels
tmp.unlink
end
end
def test_bytes_per_sample
fmt = DTAS::Format.new
assert_equal 4, fmt.bytes_per_sample
fmt.type = "f64"
assert_equal 8, fmt.bytes_per_sample
fmt.type = "f32"
assert_equal 4, fmt.bytes_per_sample
fmt.type = "s16"
assert_equal 2, fmt.bytes_per_sample
end
end
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