/
functions_test.rb
executable file
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/
functions_test.rb
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#!/usr/bin/env ruby
require 'test/unit'
require File.dirname(__FILE__) + '/../test_helper'
require File.dirname(__FILE__) + '/test_helper'
require 'sass/script'
require 'mock_importer'
module Sass::Script::Functions
def no_kw_args
Sass::Script::Value::String.new("no-kw-args")
end
def only_var_args(*args)
Sass::Script::Value::String.new("only-var-args("+args.map{|a| a.plus(Sass::Script::Value::Number.new(1)).to_s }.join(", ")+")")
end
declare :only_var_args, [], :var_args => true
def only_kw_args(kwargs)
Sass::Script::Value::String.new("only-kw-args(" + kwargs.keys.map {|a| a.to_s}.sort.join(", ") + ")")
end
declare :only_kw_args, [], :var_kwargs => true
end
module Sass::Script::Functions::UserFunctions
def call_options_on_new_value
str = Sass::Script::Value::String.new("foo")
str.options[:foo]
str
end
def user_defined
Sass::Script::Value::String.new("I'm a user-defined string!")
end
def _preceding_underscore
Sass::Script::Value::String.new("I'm another user-defined string!")
end
def fetch_the_variable
environment.var('variable')
end
end
module Sass::Script::Functions
include Sass::Script::Functions::UserFunctions
end
class SassFunctionTest < Test::Unit::TestCase
# Tests taken from:
# http://www.w3.org/Style/CSS/Test/CSS3/Color/20070927/html4/t040204-hsl-h-rotating-b.htm
# http://www.w3.org/Style/CSS/Test/CSS3/Color/20070927/html4/t040204-hsl-values-b.htm
File.read(File.dirname(__FILE__) + "/data/hsl-rgb.txt").split("\n\n").each do |chunk|
hsls, rgbs = chunk.strip.split("====")
hsls.strip.split("\n").zip(rgbs.strip.split("\n")) do |hsl, rgb|
hsl_method = "test_hsl: #{hsl} = #{rgb}"
unless method_defined?(hsl_method)
define_method(hsl_method) do
assert_equal(evaluate(rgb), evaluate(hsl))
end
end
rgb_to_hsl_method = "test_rgb_to_hsl: #{rgb} = #{hsl}"
unless method_defined?(rgb_to_hsl_method)
define_method(rgb_to_hsl_method) do
rgb_color = perform(rgb)
hsl_color = perform(hsl)
white = hsl_color.lightness == 100
black = hsl_color.lightness == 0
grayscale = white || black || hsl_color.saturation == 0
assert_in_delta(hsl_color.hue, rgb_color.hue, 0.0001,
"Hues should be equal") unless grayscale
assert_in_delta(hsl_color.saturation, rgb_color.saturation, 0.0001,
"Saturations should be equal") unless white || black
assert_in_delta(hsl_color.lightness, rgb_color.lightness, 0.0001,
"Lightnesses should be equal")
end
end
end
end
def test_hsl_kwargs
assert_equal "#33cccc", evaluate("hsl($hue: 180, $saturation: 60%, $lightness: 50%)")
end
def test_hsl_checks_bounds
assert_error_message("Saturation -114 must be between 0% and 100% for `hsl'", "hsl(10, -114, 12)");
assert_error_message("Lightness 256% must be between 0% and 100% for `hsl'", "hsl(10, 10, 256%)");
end
def test_hsl_checks_types
assert_error_message("$hue: \"foo\" is not a number for `hsl'", "hsl(\"foo\", 10, 12)");
assert_error_message("$saturation: \"foo\" is not a number for `hsl'", "hsl(10, \"foo\", 12)");
assert_error_message("$lightness: \"foo\" is not a number for `hsl'", "hsl(10, 10, \"foo\")");
end
def test_hsla
assert_equal "rgba(51, 204, 204, 0.4)", evaluate("hsla(180, 60%, 50%, 0.4)")
assert_equal "#33cccc", evaluate("hsla(180, 60%, 50%, 1)")
assert_equal "rgba(51, 204, 204, 0)", evaluate("hsla(180, 60%, 50%, 0)")
assert_equal "rgba(51, 204, 204, 0.4)", evaluate("hsla($hue: 180, $saturation: 60%, $lightness: 50%, $alpha: 0.4)")
end
def test_hsla_checks_bounds
assert_error_message("Saturation -114 must be between 0% and 100% for `hsla'", "hsla(10, -114, 12, 1)");
assert_error_message("Lightness 256% must be between 0% and 100% for `hsla'", "hsla(10, 10, 256%, 0)");
assert_error_message("Alpha channel -0.1 must be between 0 and 1 for `hsla'", "hsla(10, 10, 10, -0.1)");
assert_error_message("Alpha channel 1.1 must be between 0 and 1 for `hsla'", "hsla(10, 10, 10, 1.1)");
end
def test_hsla_checks_types
assert_error_message("$hue: \"foo\" is not a number for `hsla'", "hsla(\"foo\", 10, 12, 0.3)");
assert_error_message("$saturation: \"foo\" is not a number for `hsla'", "hsla(10, \"foo\", 12, 0)");
assert_error_message("$lightness: \"foo\" is not a number for `hsla'", "hsla(10, 10, \"foo\", 1)");
assert_error_message("$alpha: \"foo\" is not a number for `hsla'", "hsla(10, 10, 10, \"foo\")");
end
def test_percentage
assert_equal("50%", evaluate("percentage(.5)"))
assert_equal("100%", evaluate("percentage(1)"))
assert_equal("25%", evaluate("percentage(25px / 100px)"))
assert_equal("50%", evaluate("percentage($number: 0.5)"))
end
def test_percentage_deprecated_arg_name
assert_warning(<<WARNING) {assert_equal("50%", evaluate("percentage($value: 0.5)"))}
DEPRECATION WARNING: The `$value' argument for `percentage()' has been renamed to `$number'.
WARNING
end
def test_percentage_checks_types
assert_error_message("$number: 25px is not a unitless number for `percentage'", "percentage(25px)")
assert_error_message("$number: #cccccc is not a unitless number for `percentage'", "percentage(#ccc)")
assert_error_message("$number: \"string\" is not a unitless number for `percentage'", %Q{percentage("string")})
end
def test_round
assert_equal("5", evaluate("round(4.8)"))
assert_equal("5px", evaluate("round(4.8px)"))
assert_equal("5px", evaluate("round(5.49px)"))
assert_equal("5px", evaluate("round($number: 5.49px)"))
end
def test_round_deprecated_arg_name
assert_warning(<<WARNING) {assert_equal("5px", evaluate("round($value: 5.49px)"))}
DEPRECATION WARNING: The `$value' argument for `round()' has been renamed to `$number'.
WARNING
end
def test_round_checks_types
assert_error_message("$value: #cccccc is not a number for `round'", "round(#ccc)")
end
def test_floor
assert_equal("4", evaluate("floor(4.8)"))
assert_equal("4px", evaluate("floor(4.8px)"))
assert_equal("4px", evaluate("floor($number: 4.8px)"))
end
def test_floor_deprecated_arg_name
assert_warning(<<WARNING) {assert_equal("4px", evaluate("floor($value: 4.8px)"))}
DEPRECATION WARNING: The `$value' argument for `floor()' has been renamed to `$number'.
WARNING
end
def test_floor_checks_types
assert_error_message("$value: \"foo\" is not a number for `floor'", "floor(\"foo\")")
end
def test_ceil
assert_equal("5", evaluate("ceil(4.1)"))
assert_equal("5px", evaluate("ceil(4.8px)"))
assert_equal("5px", evaluate("ceil($number: 4.8px)"))
end
def test_ceil_deprecated_arg_name
assert_warning(<<WARNING) {assert_equal("5px", evaluate("ceil($value: 4.8px)"))}
DEPRECATION WARNING: The `$value' argument for `ceil()' has been renamed to `$number'.
WARNING
end
def test_ceil_checks_types
assert_error_message("$value: \"a\" is not a number for `ceil'", "ceil(\"a\")")
end
def test_abs
assert_equal("5", evaluate("abs(-5)"))
assert_equal("5px", evaluate("abs(-5px)"))
assert_equal("5", evaluate("abs(5)"))
assert_equal("5px", evaluate("abs(5px)"))
assert_equal("5px", evaluate("abs($number: 5px)"))
end
def test_abs_deprecated_arg_name
assert_warning(<<WARNING) {assert_equal("5px", evaluate("abs($value: 5px)"))}
DEPRECATION WARNING: The `$value' argument for `abs()' has been renamed to `$number'.
WARNING
end
def test_abs_checks_types
assert_error_message("$value: #aaaaaa is not a number for `abs'", "abs(#aaa)")
end
def test_min
assert_equal("1", evaluate("min(1, 2, 3)"))
assert_equal("1", evaluate("min(3px, 2px, 1)"))
assert_equal("4em", evaluate("min(4em)"))
assert_equal("10cm", evaluate("min(10cm, 6in)"))
assert_error_message("#aaaaaa is not a number for `min'", "min(#aaa)")
assert_error_message("Incompatible units: 'px' and 'em'.", "min(3em, 4em, 1px)")
end
def test_max
assert_equal("3", evaluate("max(1, 2, 3)"))
assert_equal("3", evaluate("max(3, 2px, 1px)"))
assert_equal("4em", evaluate("max(4em)"))
assert_equal("6in", evaluate("max(10cm, 6in)"))
assert_error_message("#aaaaaa is not a number for `max'", "max(#aaa)")
assert_error_message("Incompatible units: 'px' and 'em'.", "max(3em, 4em, 1px)")
end
def test_rgb
assert_equal("#123456", evaluate("rgb(18, 52, 86)"))
assert_equal("#beaded", evaluate("rgb(190, 173, 237)"))
assert_equal("springgreen", evaluate("rgb(0, 255, 127)"))
assert_equal("springgreen", evaluate("rgb($red: 0, $green: 255, $blue: 127)"))
end
def test_rgb_percent
assert_equal("#123456", evaluate("rgb(7.1%, 20.4%, 34%)"))
assert_equal("#beaded", evaluate("rgb(74.7%, 173, 93%)"))
assert_equal("#beaded", evaluate("rgb(190, 68%, 237)"))
assert_equal("springgreen", evaluate("rgb(0%, 100%, 50%)"))
end
def test_rgb_tests_bounds
assert_error_message("$red: Color value 256 must be between 0 and 255 for `rgb'",
"rgb(256, 1, 1)")
assert_error_message("$green: Color value 256 must be between 0 and 255 for `rgb'",
"rgb(1, 256, 1)")
assert_error_message("$blue: Color value 256 must be between 0 and 255 for `rgb'",
"rgb(1, 1, 256)")
assert_error_message("$green: Color value 256 must be between 0 and 255 for `rgb'",
"rgb(1, 256, 257)")
assert_error_message("$red: Color value -1 must be between 0 and 255 for `rgb'",
"rgb(-1, 1, 1)")
end
def test_rgb_test_percent_bounds
assert_error_message("$red: Color value 100.1% must be between 0% and 100% for `rgb'",
"rgb(100.1%, 0, 0)")
assert_error_message("$green: Color value -0.1% must be between 0% and 100% for `rgb'",
"rgb(0, -0.1%, 0)")
assert_error_message("$blue: Color value 101% must be between 0% and 100% for `rgb'",
"rgb(0, 0, 101%)")
end
def test_rgb_tests_types
assert_error_message("$red: \"foo\" is not a number for `rgb'", "rgb(\"foo\", 10, 12)");
assert_error_message("$green: \"foo\" is not a number for `rgb'", "rgb(10, \"foo\", 12)");
assert_error_message("$blue: \"foo\" is not a number for `rgb'", "rgb(10, 10, \"foo\")");
end
def test_rgba
assert_equal("rgba(18, 52, 86, 0.5)", evaluate("rgba(18, 52, 86, 0.5)"))
assert_equal("#beaded", evaluate("rgba(190, 173, 237, 1)"))
assert_equal("rgba(0, 255, 127, 0)", evaluate("rgba(0, 255, 127, 0)"))
assert_equal("rgba(0, 255, 127, 0)", evaluate("rgba($red: 0, $green: 255, $blue: 127, $alpha: 0)"))
end
def test_rgba_tests_bounds
assert_error_message("$red: Color value 256 must be between 0 and 255 for `rgba'",
"rgba(256, 1, 1, 0.3)")
assert_error_message("$green: Color value 256 must be between 0 and 255 for `rgba'",
"rgba(1, 256, 1, 0.3)")
assert_error_message("$blue: Color value 256 must be between 0 and 255 for `rgba'",
"rgba(1, 1, 256, 0.3)")
assert_error_message("$green: Color value 256 must be between 0 and 255 for `rgba'",
"rgba(1, 256, 257, 0.3)")
assert_error_message("$red: Color value -1 must be between 0 and 255 for `rgba'",
"rgba(-1, 1, 1, 0.3)")
assert_error_message("Alpha channel -0.2 must be between 0 and 1 for `rgba'",
"rgba(1, 1, 1, -0.2)")
assert_error_message("Alpha channel 1.2 must be between 0 and 1 for `rgba'",
"rgba(1, 1, 1, 1.2)")
end
def test_rgba_tests_types
assert_error_message("$red: \"foo\" is not a number for `rgba'", "rgba(\"foo\", 10, 12, 0.2)");
assert_error_message("$green: \"foo\" is not a number for `rgba'", "rgba(10, \"foo\", 12, 0.1)");
assert_error_message("$blue: \"foo\" is not a number for `rgba'", "rgba(10, 10, \"foo\", 0)");
assert_error_message("$alpha: \"foo\" is not a number for `rgba'", "rgba(10, 10, 10, \"foo\")");
end
def test_rgba_with_color
assert_equal "rgba(16, 32, 48, 0.5)", evaluate("rgba(#102030, 0.5)")
assert_equal "rgba(0, 0, 255, 0.5)", evaluate("rgba(blue, 0.5)")
assert_equal "rgba(0, 0, 255, 0.5)", evaluate("rgba($color: blue, $alpha: 0.5)")
end
def test_rgba_with_color_tests_types
assert_error_message("$color: \"foo\" is not a color for `rgba'", "rgba(\"foo\", 0.2)");
assert_error_message("$alpha: \"foo\" is not a number for `rgba'", "rgba(blue, \"foo\")");
end
def test_rgba_tests_num_args
assert_error_message("wrong number of arguments (0 for 4) for `rgba'", "rgba()");
assert_error_message("wrong number of arguments (1 for 4) for `rgba'", "rgba(blue)");
assert_error_message("wrong number of arguments (3 for 4) for `rgba'", "rgba(1, 2, 3)");
assert_error_message("wrong number of arguments (5 for 4) for `rgba'", "rgba(1, 2, 3, 0.4, 5)");
end
def test_red
assert_equal("18", evaluate("red(#123456)"))
assert_equal("18", evaluate("red($color: #123456)"))
end
def test_red_exception
assert_error_message("$color: 12 is not a color for `red'", "red(12)")
end
def test_green
assert_equal("52", evaluate("green(#123456)"))
assert_equal("52", evaluate("green($color: #123456)"))
end
def test_green_exception
assert_error_message("$color: 12 is not a color for `green'", "green(12)")
end
def test_blue
assert_equal("86", evaluate("blue(#123456)"))
assert_equal("86", evaluate("blue($color: #123456)"))
end
def test_blue_exception
assert_error_message("$color: 12 is not a color for `blue'", "blue(12)")
end
def test_hue
assert_equal("18deg", evaluate("hue(hsl(18, 50%, 20%))"))
assert_equal("18deg", evaluate("hue($color: hsl(18, 50%, 20%))"))
end
def test_hue_exception
assert_error_message("$color: 12 is not a color for `hue'", "hue(12)")
end
def test_saturation
assert_equal("52%", evaluate("saturation(hsl(20, 52%, 20%))"))
assert_equal("52%", evaluate("saturation(hsl(20, 52, 20%))"))
assert_equal("52%", evaluate("saturation($color: hsl(20, 52, 20%))"))
end
def test_saturation_exception
assert_error_message("$color: 12 is not a color for `saturation'", "saturation(12)")
end
def test_lightness
assert_equal("86%", evaluate("lightness(hsl(120, 50%, 86%))"))
assert_equal("86%", evaluate("lightness(hsl(120, 50%, 86))"))
assert_equal("86%", evaluate("lightness($color: hsl(120, 50%, 86))"))
end
def test_lightness_exception
assert_error_message("$color: 12 is not a color for `lightness'", "lightness(12)")
end
def test_alpha
assert_equal("1", evaluate("alpha(#123456)"))
assert_equal("0.34", evaluate("alpha(rgba(0, 1, 2, 0.34))"))
assert_equal("0", evaluate("alpha(hsla(0, 1, 2, 0))"))
assert_equal("0", evaluate("alpha($color: hsla(0, 1, 2, 0))"))
end
def test_alpha_exception
assert_error_message("$color: 12 is not a color for `alpha'", "alpha(12)")
end
def test_opacity
assert_equal("1", evaluate("opacity(#123456)"))
assert_equal("0.34", evaluate("opacity(rgba(0, 1, 2, 0.34))"))
assert_equal("0", evaluate("opacity(hsla(0, 1, 2, 0))"))
assert_equal("0", evaluate("opacity($color: hsla(0, 1, 2, 0))"))
assert_equal("opacity(20%)", evaluate("opacity(20%)"))
end
def test_opacity_exception
assert_error_message("$color: \"foo\" is not a color for `opacity'", "opacity(foo)")
end
def test_opacify
assert_equal("rgba(0, 0, 0, 0.75)", evaluate("opacify(rgba(0, 0, 0, 0.5), 0.25)"))
assert_equal("rgba(0, 0, 0, 0.3)", evaluate("opacify(rgba(0, 0, 0, 0.2), 0.1)"))
assert_equal("rgba(0, 0, 0, 0.7)", evaluate("fade-in(rgba(0, 0, 0, 0.2), 0.5px)"))
assert_equal("black", evaluate("fade_in(rgba(0, 0, 0, 0.2), 0.8)"))
assert_equal("black", evaluate("opacify(rgba(0, 0, 0, 0.2), 1)"))
assert_equal("rgba(0, 0, 0, 0.2)", evaluate("opacify(rgba(0, 0, 0, 0.2), 0%)"))
assert_equal("rgba(0, 0, 0, 0.2)", evaluate("opacify($color: rgba(0, 0, 0, 0.2), $amount: 0%)"))
assert_equal("rgba(0, 0, 0, 0.2)", evaluate("fade-in($color: rgba(0, 0, 0, 0.2), $amount: 0%)"))
end
def test_opacify_tests_bounds
assert_error_message("Amount -0.001 must be between 0 and 1 for `opacify'",
"opacify(rgba(0, 0, 0, 0.2), -0.001)")
assert_error_message("Amount 1.001 must be between 0 and 1 for `opacify'",
"opacify(rgba(0, 0, 0, 0.2), 1.001)")
end
def test_opacify_tests_types
assert_error_message("$color: \"foo\" is not a color for `opacify'", "opacify(\"foo\", 10%)")
assert_error_message("$amount: \"foo\" is not a number for `opacify'", "opacify(#fff, \"foo\")")
end
def test_transparentize
assert_equal("rgba(0, 0, 0, 0.3)", evaluate("transparentize(rgba(0, 0, 0, 0.5), 0.2)"))
assert_equal("rgba(0, 0, 0, 0.1)", evaluate("transparentize(rgba(0, 0, 0, 0.2), 0.1)"))
assert_equal("rgba(0, 0, 0, 0.2)", evaluate("fade-out(rgba(0, 0, 0, 0.5), 0.3px)"))
assert_equal("transparent", evaluate("fade_out(rgba(0, 0, 0, 0.2), 0.2)"))
assert_equal("transparent", evaluate("transparentize(rgba(0, 0, 0, 0.2), 1)"))
assert_equal("rgba(0, 0, 0, 0.2)", evaluate("transparentize(rgba(0, 0, 0, 0.2), 0)"))
assert_equal("rgba(0, 0, 0, 0.2)", evaluate("transparentize($color: rgba(0, 0, 0, 0.2), $amount: 0)"))
assert_equal("rgba(0, 0, 0, 0.2)", evaluate("fade-out($color: rgba(0, 0, 0, 0.2), $amount: 0)"))
end
def test_transparentize_tests_bounds
assert_error_message("Amount -0.001 must be between 0 and 1 for `transparentize'",
"transparentize(rgba(0, 0, 0, 0.2), -0.001)")
assert_error_message("Amount 1.001 must be between 0 and 1 for `transparentize'",
"transparentize(rgba(0, 0, 0, 0.2), 1.001)")
end
def test_transparentize_tests_types
assert_error_message("$color: \"foo\" is not a color for `transparentize'", "transparentize(\"foo\", 10%)")
assert_error_message("$amount: \"foo\" is not a number for `transparentize'", "transparentize(#fff, \"foo\")")
end
def test_lighten
assert_equal("#4d4d4d", evaluate("lighten(hsl(0, 0, 0), 30%)"))
assert_equal("#ee0000", evaluate("lighten(#800, 20%)"))
assert_equal("white", evaluate("lighten(#fff, 20%)"))
assert_equal("white", evaluate("lighten(#800, 100%)"))
assert_equal("#880000", evaluate("lighten(#800, 0%)"))
assert_equal("rgba(238, 0, 0, 0.5)", evaluate("lighten(rgba(136, 0, 0, 0.5), 20%)"))
assert_equal("rgba(238, 0, 0, 0.5)", evaluate("lighten($color: rgba(136, 0, 0, 0.5), $amount: 20%)"))
end
def test_lighten_tests_bounds
assert_error_message("Amount -0.001 must be between 0% and 100% for `lighten'",
"lighten(#123, -0.001)")
assert_error_message("Amount 100.001 must be between 0% and 100% for `lighten'",
"lighten(#123, 100.001)")
end
def test_lighten_tests_types
assert_error_message("$color: \"foo\" is not a color for `lighten'", "lighten(\"foo\", 10%)")
assert_error_message("$amount: \"foo\" is not a number for `lighten'", "lighten(#fff, \"foo\")")
end
def test_darken
assert_equal("#ff6a00", evaluate("darken(hsl(25, 100, 80), 30%)"))
assert_equal("#220000", evaluate("darken(#800, 20%)"))
assert_equal("black", evaluate("darken(#000, 20%)"))
assert_equal("black", evaluate("darken(#800, 100%)"))
assert_equal("#880000", evaluate("darken(#800, 0%)"))
assert_equal("rgba(34, 0, 0, 0.5)", evaluate("darken(rgba(136, 0, 0, 0.5), 20%)"))
assert_equal("rgba(34, 0, 0, 0.5)", evaluate("darken($color: rgba(136, 0, 0, 0.5), $amount: 20%)"))
end
def test_darken_tests_bounds
assert_error_message("Amount -0.001 must be between 0% and 100% for `darken'",
"darken(#123, -0.001)")
assert_error_message("Amount 100.001 must be between 0% and 100% for `darken'",
"darken(#123, 100.001)")
end
def test_darken_tests_types
assert_error_message("$color: \"foo\" is not a color for `darken'", "darken(\"foo\", 10%)")
assert_error_message("$amount: \"foo\" is not a number for `darken'", "darken(#fff, \"foo\")")
end
def test_saturate
assert_equal("#d9f2d9", evaluate("saturate(hsl(120, 30, 90), 20%)"))
assert_equal("#9e3f3f", evaluate("saturate(#855, 20%)"))
assert_equal("black", evaluate("saturate(#000, 20%)"))
assert_equal("white", evaluate("saturate(#fff, 20%)"))
assert_equal("#33ff33", evaluate("saturate(#8a8, 100%)"))
assert_equal("#88aa88", evaluate("saturate(#8a8, 0%)"))
assert_equal("rgba(158, 63, 63, 0.5)", evaluate("saturate(rgba(136, 85, 85, 0.5), 20%)"))
assert_equal("rgba(158, 63, 63, 0.5)", evaluate("saturate($color: rgba(136, 85, 85, 0.5), $amount: 20%)"))
assert_equal("saturate(50%)", evaluate("saturate(50%)"))
end
def test_saturate_tests_bounds
assert_error_message("Amount -0.001 must be between 0% and 100% for `saturate'",
"saturate(#123, -0.001)")
assert_error_message("Amount 100.001 must be between 0% and 100% for `saturate'",
"saturate(#123, 100.001)")
end
def test_saturate_tests_types
assert_error_message("$color: \"foo\" is not a color for `saturate'", "saturate(\"foo\", 10%)")
assert_error_message("$amount: \"foo\" is not a number for `saturate'", "saturate(#fff, \"foo\")")
end
def test_desaturate
assert_equal("#e3e8e3", evaluate("desaturate(hsl(120, 30, 90), 20%)"))
assert_equal("#726b6b", evaluate("desaturate(#855, 20%)"))
assert_equal("black", evaluate("desaturate(#000, 20%)"))
assert_equal("white", evaluate("desaturate(#fff, 20%)"))
assert_equal("#999999", evaluate("desaturate(#8a8, 100%)"))
assert_equal("#88aa88", evaluate("desaturate(#8a8, 0%)"))
assert_equal("rgba(114, 107, 107, 0.5)", evaluate("desaturate(rgba(136, 85, 85, 0.5), 20%)"))
assert_equal("rgba(114, 107, 107, 0.5)", evaluate("desaturate($color: rgba(136, 85, 85, 0.5), $amount: 20%)"))
end
def test_desaturate_tests_bounds
assert_error_message("Amount -0.001 must be between 0% and 100% for `desaturate'",
"desaturate(#123, -0.001)")
assert_error_message("Amount 100.001 must be between 0% and 100% for `desaturate'",
"desaturate(#123, 100.001)")
end
def test_desaturate_tests_types
assert_error_message("$color: \"foo\" is not a color for `desaturate'", "desaturate(\"foo\", 10%)")
assert_error_message("$amount: \"foo\" is not a number for `desaturate'", "desaturate(#fff, \"foo\")")
end
def test_adjust_hue
assert_equal("#deeded", evaluate("adjust-hue(hsl(120, 30, 90), 60deg)"))
assert_equal("#ededde", evaluate("adjust-hue(hsl(120, 30, 90), -60deg)"))
assert_equal("#886a11", evaluate("adjust-hue(#811, 45deg)"))
assert_equal("black", evaluate("adjust-hue(#000, 45deg)"))
assert_equal("white", evaluate("adjust-hue(#fff, 45deg)"))
assert_equal("#88aa88", evaluate("adjust-hue(#8a8, 360deg)"))
assert_equal("#88aa88", evaluate("adjust-hue(#8a8, 0deg)"))
assert_equal("rgba(136, 106, 17, 0.5)", evaluate("adjust-hue(rgba(136, 17, 17, 0.5), 45deg)"))
assert_equal("rgba(136, 106, 17, 0.5)", evaluate("adjust-hue($color: rgba(136, 17, 17, 0.5), $degrees: 45deg)"))
end
def test_adjust_hue_tests_types
assert_error_message("$color: \"foo\" is not a color for `adjust-hue'", "adjust-hue(\"foo\", 10%)")
assert_error_message("$degrees: \"foo\" is not a number for `adjust-hue'", "adjust-hue(#fff, \"foo\")")
end
def test_adjust_color
# HSL
assert_equal(evaluate("hsl(180, 30, 90)"),
evaluate("adjust-color(hsl(120, 30, 90), $hue: 60deg)"))
assert_equal(evaluate("hsl(120, 50, 90)"),
evaluate("adjust-color(hsl(120, 30, 90), $saturation: 20%)"))
assert_equal(evaluate("hsl(120, 30, 60)"),
evaluate("adjust-color(hsl(120, 30, 90), $lightness: -30%)"))
# RGB
assert_equal(evaluate("rgb(15, 20, 30)"),
evaluate("adjust-color(rgb(10, 20, 30), $red: 5)"))
assert_equal(evaluate("rgb(10, 15, 30)"),
evaluate("adjust-color(rgb(10, 20, 30), $green: -5)"))
assert_equal(evaluate("rgb(10, 20, 40)"),
evaluate("adjust-color(rgb(10, 20, 30), $blue: 10)"))
# Alpha
assert_equal(evaluate("hsla(120, 30, 90, 0.65)"),
evaluate("adjust-color(hsl(120, 30, 90), $alpha: -0.35)"))
assert_equal(evaluate("rgba(10, 20, 30, 0.9)"),
evaluate("adjust-color(rgba(10, 20, 30, 0.4), $alpha: 0.5)"))
# HSL composability
assert_equal(evaluate("hsl(180, 20, 90)"),
evaluate("adjust-color(hsl(120, 30, 90), $hue: 60deg, $saturation: -10%)"))
assert_equal(evaluate("hsl(180, 20, 95)"),
evaluate("adjust-color(hsl(120, 30, 90), $hue: 60deg, $saturation: -10%, $lightness: 5%)"))
assert_equal(evaluate("hsla(120, 20, 95, 0.3)"),
evaluate("adjust-color(hsl(120, 30, 90), $saturation: -10%, $lightness: 5%, $alpha: -0.7)"))
# RGB composability
assert_equal(evaluate("rgb(15, 20, 29)"),
evaluate("adjust-color(rgb(10, 20, 30), $red: 5, $blue: -1)"))
assert_equal(evaluate("rgb(15, 45, 29)"),
evaluate("adjust-color(rgb(10, 20, 30), $red: 5, $green: 25, $blue: -1)"))
assert_equal(evaluate("rgba(10, 25, 29, 0.7)"),
evaluate("adjust-color(rgb(10, 20, 30), $green: 5, $blue: -1, $alpha: -0.3)"))
# HSL range restriction
assert_equal(evaluate("hsl(120, 30, 90)"),
evaluate("adjust-color(hsl(120, 30, 90), $hue: 720deg)"))
assert_equal(evaluate("hsl(120, 0, 90)"),
evaluate("adjust-color(hsl(120, 30, 90), $saturation: -90%)"))
assert_equal(evaluate("hsl(120, 30, 100)"),
evaluate("adjust-color(hsl(120, 30, 90), $lightness: 30%)"))
# RGB range restriction
assert_equal(evaluate("rgb(255, 20, 30)"),
evaluate("adjust-color(rgb(10, 20, 30), $red: 250)"))
assert_equal(evaluate("rgb(10, 0, 30)"),
evaluate("adjust-color(rgb(10, 20, 30), $green: -30)"))
assert_equal(evaluate("rgb(10, 20, 0)"),
evaluate("adjust-color(rgb(10, 20, 30), $blue: -40)"))
end
def test_adjust_color_tests_types
assert_error_message("$color: \"foo\" is not a color for `adjust-color'", "adjust-color(foo, $hue: 10)")
# HSL
assert_error_message("$hue: \"foo\" is not a number for `adjust-color'",
"adjust-color(blue, $hue: foo)")
assert_error_message("$saturation: \"foo\" is not a number for `adjust-color'",
"adjust-color(blue, $saturation: foo)")
assert_error_message("$lightness: \"foo\" is not a number for `adjust-color'",
"adjust-color(blue, $lightness: foo)")
# RGB
assert_error_message("$red: \"foo\" is not a number for `adjust-color'",
"adjust-color(blue, $red: foo)")
assert_error_message("$green: \"foo\" is not a number for `adjust-color'",
"adjust-color(blue, $green: foo)")
assert_error_message("$blue: \"foo\" is not a number for `adjust-color'",
"adjust-color(blue, $blue: foo)")
# Alpha
assert_error_message("$alpha: \"foo\" is not a number for `adjust-color'",
"adjust-color(blue, $alpha: foo)")
end
def test_adjust_color_tests_arg_range
# HSL
assert_error_message("$saturation: Amount 101% must be between -100% and 100% for `adjust-color'",
"adjust-color(blue, $saturation: 101%)")
assert_error_message("$saturation: Amount -101% must be between -100% and 100% for `adjust-color'",
"adjust-color(blue, $saturation: -101%)")
assert_error_message("$lightness: Amount 101% must be between -100% and 100% for `adjust-color'",
"adjust-color(blue, $lightness: 101%)")
assert_error_message("$lightness: Amount -101% must be between -100% and 100% for `adjust-color'",
"adjust-color(blue, $lightness: -101%)")
# RGB
assert_error_message("$red: Amount 256 must be between -255 and 255 for `adjust-color'",
"adjust-color(blue, $red: 256)")
assert_error_message("$red: Amount -256 must be between -255 and 255 for `adjust-color'",
"adjust-color(blue, $red: -256)")
assert_error_message("$green: Amount 256 must be between -255 and 255 for `adjust-color'",
"adjust-color(blue, $green: 256)")
assert_error_message("$green: Amount -256 must be between -255 and 255 for `adjust-color'",
"adjust-color(blue, $green: -256)")
assert_error_message("$blue: Amount 256 must be between -255 and 255 for `adjust-color'",
"adjust-color(blue, $blue: 256)")
assert_error_message("$blue: Amount -256 must be between -255 and 255 for `adjust-color'",
"adjust-color(blue, $blue: -256)")
# Alpha
assert_error_message("$alpha: Amount 1.1 must be between -1 and 1 for `adjust-color'",
"adjust-color(blue, $alpha: 1.1)")
assert_error_message("$alpha: Amount -1.1 must be between -1 and 1 for `adjust-color'",
"adjust-color(blue, $alpha: -1.1)")
end
def test_adjust_color_argument_errors
assert_error_message("Unknown argument $hoo (260deg) for `adjust-color'",
"adjust-color(blue, $hoo: 260deg)")
assert_error_message("Cannot specify HSL and RGB values for a color at the same time for `adjust-color'",
"adjust-color(blue, $hue: 120deg, $red: 10)");
assert_error_message("10px is not a keyword argument for `adjust_color'",
"adjust-color(blue, 10px)")
assert_error_message("10px is not a keyword argument for `adjust_color'",
"adjust-color(blue, 10px, 20px)")
assert_error_message("10px is not a keyword argument for `adjust_color'",
"adjust-color(blue, 10px, $hue: 180deg)")
end
def test_scale_color
# HSL
assert_equal(evaluate("hsl(120, 51, 90)"),
evaluate("scale-color(hsl(120, 30, 90), $saturation: 30%)"))
assert_equal(evaluate("hsl(120, 30, 76.5)"),
evaluate("scale-color(hsl(120, 30, 90), $lightness: -15%)"))
# RGB
assert_equal(evaluate("rgb(157, 20, 30)"),
evaluate("scale-color(rgb(10, 20, 30), $red: 60%)"))
assert_equal(evaluate("rgb(10, 38.8, 30)"),
evaluate("scale-color(rgb(10, 20, 30), $green: 8%)"))
assert_equal(evaluate("rgb(10, 20, 20)"),
evaluate("scale-color(rgb(10, 20, 30), $blue: -(1/3)*100%)"))
# Alpha
assert_equal(evaluate("hsla(120, 30, 90, 0.86)"),
evaluate("scale-color(hsl(120, 30, 90), $alpha: -14%)"))
assert_equal(evaluate("rgba(10, 20, 30, 0.82)"),
evaluate("scale-color(rgba(10, 20, 30, 0.8), $alpha: 10%)"))
# HSL composability
assert_equal(evaluate("hsl(120, 51, 76.5)"),
evaluate("scale-color(hsl(120, 30, 90), $saturation: 30%, $lightness: -15%)"))
assert_equal(evaluate("hsla(120, 51, 90, 0.2)"),
evaluate("scale-color(hsl(120, 30, 90), $saturation: 30%, $alpha: -80%)"))
# RGB composability
assert_equal(evaluate("rgb(157, 38.8, 30)"),
evaluate("scale-color(rgb(10, 20, 30), $red: 60%, $green: 8%)"))
assert_equal(evaluate("rgb(157, 38.8, 20)"),
evaluate("scale-color(rgb(10, 20, 30), $red: 60%, $green: 8%, $blue: -(1/3)*100%)"))
assert_equal(evaluate("rgba(10, 38.8, 20, 0.55)"),
evaluate("scale-color(rgba(10, 20, 30, 0.5), $green: 8%, $blue: -(1/3)*100%, $alpha: 10%)"))
# Extremes
assert_equal(evaluate("hsl(120, 100, 90)"),
evaluate("scale-color(hsl(120, 30, 90), $saturation: 100%)"))
assert_equal(evaluate("hsl(120, 30, 90)"),
evaluate("scale-color(hsl(120, 30, 90), $saturation: 0%)"))
assert_equal(evaluate("hsl(120, 0, 90)"),
evaluate("scale-color(hsl(120, 30, 90), $saturation: -100%)"))
end
def test_scale_color_tests_types
assert_error_message("$color: \"foo\" is not a color for `scale-color'", "scale-color(foo, $red: 10%)")
# HSL
assert_error_message("$saturation: \"foo\" is not a number for `scale-color'",
"scale-color(blue, $saturation: foo)")
assert_error_message("$lightness: \"foo\" is not a number for `scale-color'",
"scale-color(blue, $lightness: foo)")
# RGB
assert_error_message("$red: \"foo\" is not a number for `scale-color'",
"scale-color(blue, $red: foo)")
assert_error_message("$green: \"foo\" is not a number for `scale-color'",
"scale-color(blue, $green: foo)")
assert_error_message("$blue: \"foo\" is not a number for `scale-color'",
"scale-color(blue, $blue: foo)")
# Alpha
assert_error_message("$alpha: \"foo\" is not a number for `scale-color'",
"scale-color(blue, $alpha: foo)")
end
def test_scale_color_argument_errors
# Range
assert_error_message("$saturation: Amount 101% must be between -100% and 100% for `scale-color'",
"scale-color(blue, $saturation: 101%)")
assert_error_message("$red: Amount -101% must be between -100% and 100% for `scale-color'",
"scale-color(blue, $red: -101%)")
assert_error_message("$alpha: Amount -101% must be between -100% and 100% for `scale-color'",
"scale-color(blue, $alpha: -101%)")
# Unit
assert_error_message("Expected $saturation to have a unit of % but got 80 for `scale-color'",
"scale-color(blue, $saturation: 80)")
assert_error_message("Expected $alpha to have a unit of % but got 0.5 for `scale-color'",
"scale-color(blue, $alpha: 0.5)")
# Unknown argument
assert_error_message("Unknown argument $hue (80%) for `scale-color'", "scale-color(blue, $hue: 80%)")
# Non-keyword arg
assert_error_message("10px is not a keyword argument for `scale_color'", "scale-color(blue, 10px)")
# HSL/RGB
assert_error_message("Cannot specify HSL and RGB values for a color at the same time for `scale-color'",
"scale-color(blue, $lightness: 10%, $red: 20%)");
end
def test_change_color
# HSL
assert_equal(evaluate("hsl(195, 30, 90)"),
evaluate("change-color(hsl(120, 30, 90), $hue: 195deg)"))
assert_equal(evaluate("hsl(120, 50, 90)"),
evaluate("change-color(hsl(120, 30, 90), $saturation: 50%)"))
assert_equal(evaluate("hsl(120, 30, 40)"),
evaluate("change-color(hsl(120, 30, 90), $lightness: 40%)"))
# RGB
assert_equal(evaluate("rgb(123, 20, 30)"),
evaluate("change-color(rgb(10, 20, 30), $red: 123)"))
assert_equal(evaluate("rgb(10, 234, 30)"),
evaluate("change-color(rgb(10, 20, 30), $green: 234)"))
assert_equal(evaluate("rgb(10, 20, 198)"),
evaluate("change-color(rgb(10, 20, 30), $blue: 198)"))
# Alpha
assert_equal(evaluate("rgba(10, 20, 30, 0.76)"),
evaluate("change-color(rgb(10, 20, 30), $alpha: 0.76)"))
# HSL composability
assert_equal(evaluate("hsl(56, 30, 47)"),
evaluate("change-color(hsl(120, 30, 90), $hue: 56deg, $lightness: 47%)"))
assert_equal(evaluate("hsla(56, 30, 47, 0.9)"),
evaluate("change-color(hsl(120, 30, 90), $hue: 56deg, $lightness: 47%, $alpha: 0.9)"))
end
def test_change_color_tests_types
assert_error_message("$color: \"foo\" is not a color for `change-color'", "change-color(foo, $red: 10%)")
# HSL
assert_error_message("$saturation: \"foo\" is not a number for `change-color'",
"change-color(blue, $saturation: foo)")
assert_error_message("$lightness: \"foo\" is not a number for `change-color'",
"change-color(blue, $lightness: foo)")
# RGB
assert_error_message("$red: \"foo\" is not a number for `change-color'", "change-color(blue, $red: foo)")
assert_error_message("$green: \"foo\" is not a number for `change-color'", "change-color(blue, $green: foo)")
assert_error_message("$blue: \"foo\" is not a number for `change-color'", "change-color(blue, $blue: foo)")
# Alpha
assert_error_message("$alpha: \"foo\" is not a number for `change-color'", "change-color(blue, $alpha: foo)")
end
def test_change_color_argument_errors
# Range
assert_error_message("Saturation 101% must be between 0% and 100% for `change-color'",
"change-color(blue, $saturation: 101%)")
assert_error_message("Lightness 101% must be between 0% and 100% for `change-color'",
"change-color(blue, $lightness: 101%)")
assert_error_message("Red value -1 must be between 0 and 255 for `change-color'",
"change-color(blue, $red: -1)")
assert_error_message("Green value 256 must be between 0 and 255 for `change-color'",
"change-color(blue, $green: 256)")
assert_error_message("Blue value 500 must be between 0 and 255 for `change-color'",
"change-color(blue, $blue: 500)")
# Unknown argument
assert_error_message("Unknown argument $hoo (80%) for `change-color'", "change-color(blue, $hoo: 80%)")
# Non-keyword arg
assert_error_message("10px is not a keyword argument for `change_color'", "change-color(blue, 10px)")
# HSL/RGB
assert_error_message("Cannot specify HSL and RGB values for a color at the same time for `change-color'",
"change-color(blue, $lightness: 10%, $red: 120)");
end
def test_ie_hex_str
assert_equal("#FFAA11CC", evaluate('ie-hex-str(#aa11cc)'))
assert_equal("#FFAA11CC", evaluate('ie-hex-str(#a1c)'))
assert_equal("#FFAA11CC", evaluate('ie-hex-str(#A1c)'))
assert_equal("#80FF0000", evaluate('ie-hex-str(rgba(255, 0, 0, 0.5))'))
end
def test_mix
assert_equal("#7f007f", evaluate("mix(#f00, #00f)"))
assert_equal("#7f7f7f", evaluate("mix(#f00, #0ff)"))
assert_equal("#7f9055", evaluate("mix(#f70, #0aa)"))
assert_equal("#3f00bf", evaluate("mix(#f00, #00f, 25%)"))
assert_equal("rgba(63, 0, 191, 0.75)", evaluate("mix(rgba(255, 0, 0, 0.5), #00f)"))
assert_equal("red", evaluate("mix(#f00, #00f, 100%)"))
assert_equal("blue", evaluate("mix(#f00, #00f, 0%)"))
assert_equal("rgba(255, 0, 0, 0.5)", evaluate("mix(#f00, transparentize(#00f, 1))"))
assert_equal("rgba(0, 0, 255, 0.5)", evaluate("mix(transparentize(#f00, 1), #00f)"))
assert_equal("red", evaluate("mix(#f00, transparentize(#00f, 1), 100%)"))
assert_equal("blue", evaluate("mix(transparentize(#f00, 1), #00f, 0%)"))
assert_equal("rgba(0, 0, 255, 0)", evaluate("mix(#f00, transparentize(#00f, 1), 0%)"))
assert_equal("rgba(255, 0, 0, 0)", evaluate("mix(transparentize(#f00, 1), #00f, 100%)"))
assert_equal("rgba(255, 0, 0, 0)", evaluate("mix($color1: transparentize(#f00, 1), $color2: #00f, $weight: 100%)"))
end
def test_mix_deprecated_arg_name
assert_warning <<WARNING do
DEPRECATION WARNING: The `$color-1' argument for `mix()' has been renamed to `$color1'.
DEPRECATION WARNING: The `$color-2' argument for `mix()' has been renamed to `$color2'.
WARNING
assert_equal("rgba(255, 0, 0, 0)",
evaluate("mix($color-1: transparentize(#f00, 1), $color-2: #00f, $weight: 100%)"))
end
assert_warning <<WARNING do
DEPRECATION WARNING: The `$color-1' argument for `mix()' has been renamed to `$color1'.
DEPRECATION WARNING: The `$color-2' argument for `mix()' has been renamed to `$color2'.
WARNING
assert_equal("rgba(0, 0, 255, 0.5)",
evaluate("mix($color-1: transparentize(#f00, 1), $color-2: #00f)"))
end
assert_warning <<WARNING do
DEPRECATION WARNING: The `$color_1' argument for `mix()' has been renamed to `$color1'.
DEPRECATION WARNING: The `$color_2' argument for `mix()' has been renamed to `$color2'.
WARNING
assert_equal("rgba(0, 0, 255, 0.5)",
evaluate("mix($color_1: transparentize(#f00, 1), $color_2: #00f)"))
end
end
def test_mix_tests_types
assert_error_message("$color1: \"foo\" is not a color for `mix'", "mix(\"foo\", #f00, 10%)")
assert_error_message("$color2: \"foo\" is not a color for `mix'", "mix(#f00, \"foo\", 10%)")
assert_error_message("$weight: \"foo\" is not a number for `mix'", "mix(#f00, #baf, \"foo\")")
end
def test_mix_tests_bounds
assert_error_message("Weight -0.001 must be between 0% and 100% for `mix'",
"mix(#123, #456, -0.001)")
assert_error_message("Weight 100.001 must be between 0% and 100% for `mix'",
"mix(#123, #456, 100.001)")
end
def test_grayscale
assert_equal("#bbbbbb", evaluate("grayscale(#abc)"))
assert_equal("gray", evaluate("grayscale(#f00)"))
assert_equal("gray", evaluate("grayscale(#00f)"))
assert_equal("white", evaluate("grayscale(white)"))
assert_equal("black", evaluate("grayscale(black)"))
assert_equal("black", evaluate("grayscale($color: black)"))
assert_equal("grayscale(2)", evaluate("grayscale(2)"))
assert_equal("grayscale(-5px)", evaluate("grayscale(-5px)"))
end
def tets_grayscale_tests_types
assert_error_message("$color: \"foo\" is not a color for `grayscale'", "grayscale(\"foo\")")
end
def test_complement
assert_equal("#ccbbaa", evaluate("complement(#abc)"))
assert_equal("cyan", evaluate("complement(red)"))
assert_equal("red", evaluate("complement(cyan)"))
assert_equal("white", evaluate("complement(white)"))
assert_equal("black", evaluate("complement(black)"))
assert_equal("black", evaluate("complement($color: black)"))
end
def tets_complement_tests_types
assert_error_message("$color: \"foo\" is not a color for `complement'", "complement(\"foo\")")
end
def test_invert
assert_equal("#112233", evaluate("invert(#edc)"))
assert_equal("rgba(245, 235, 225, 0.5)", evaluate("invert(rgba(10, 20, 30, 0.5))"))
assert_equal("invert(20%)", evaluate("invert(20%)"))
end
def test_invert_tests_types
assert_error_message("$color: \"foo\" is not a color for `invert'", "invert(\"foo\")")
end
def test_unquote
assert_equal('foo', evaluate('unquote("foo")'))
assert_equal('foo', evaluate('unquote(foo)'))
assert_equal('foo', evaluate('unquote($string: foo)'))
end
def test_quote
assert_equal('"foo"', evaluate('quote(foo)'))
assert_equal('"foo"', evaluate('quote("foo")'))
assert_equal('"foo"', evaluate('quote($string: "foo")'))
end
def test_quote_tests_type
assert_error_message("$string: #ff0000 is not a string for `quote'", "quote(#f00)")
end
def test_str_length
assert_equal('3', evaluate('str-length(foo)'))
end
def test_str_length_requires_a_string
assert_error_message("$string: #ff0000 is not a string for `str-length'", "str-length(#f00)")
end
def test_str_insert
assert_equal('Xabcd', evaluate('str-insert(abcd, X, 0)'))
assert_equal('Xabcd', evaluate('str-insert(abcd, X, 1)'))
assert_equal('abcXd', evaluate('str-insert(abcd, X, 4)'))
assert_equal('abcdX', evaluate('str-insert(abcd, X, 100)'))
assert_equal('Xabcd', evaluate('str-insert(abcd, X, -100)'))
assert_equal('aXbcd', evaluate('str-insert(abcd, X, -4)'))
assert_equal('abcdX', evaluate('str-insert(abcd, X, -1)'))
end
def test_str_insert_maintains_quote_of_primary_string
assert_equal('"Xfoo"', evaluate('str-insert("foo", X, 1)'))
assert_equal('"Xfoo"', evaluate('str-insert("foo", "X", 1)'))
assert_equal('Xfoo', evaluate('str-insert(foo, "X", 1)'))
end
def test_str_insert_asserts_types
assert_error_message("$string: #ff0000 is not a string for `str-insert'", "str-insert(#f00, X, 1)")
assert_error_message("$insert: #ff0000 is not a string for `str-insert'", "str-insert(foo, #f00, 1)")
assert_error_message("$index: #ff0000 is not a number for `str-insert'", "str-insert(foo, X, #f00)")
assert_error_message("Expected $index to be unitless but got 10px for `str-insert'", "str-insert(foo, X, 10px)")
end
def test_str_index
assert_equal('1', evaluate('str-index(abcd, a)'))
assert_equal('1', evaluate('str-index(abcd, ab)'))
assert_equal(Sass::Script::Value::Null.new, perform('str-index(abcd, X)'))
assert_equal('3', evaluate('str-index(abcd, c)'))
end
def test_str_index_asserts_types
assert_error_message("$string: #ff0000 is not a string for `str-index'", "str-index(#f00, X)")
assert_error_message("$substring: #ff0000 is not a string for `str-index'", "str-index(asdf, #f00)")
end
def test_to_lower_case
assert_equal('abcd', evaluate('to-lower-case(ABCD)'))
assert_equal('"abcd"', evaluate('to-lower-case("ABCD")'))
assert_error_message("$string: #ff0000 is not a string for `to-lower-case'", "to-lower-case(#f00)")
end
def test_to_upper_case
assert_equal('ABCD', evaluate('to-upper-case(abcd)'))
assert_equal('"ABCD"', evaluate('to-upper-case("abcd")'))
assert_error_message("$string: #ff0000 is not a string for `to-upper-case'", "to-upper-case(#f00)")
end
def test_str_slice
assert_equal('bc', evaluate('str-slice(abcd,2,3)')) # in the middle of the string
assert_equal('a', evaluate('str-slice(abcd,1,1)')) # when start = end
assert_equal('ab', evaluate('str-slice(abcd,1,2)')) # for completeness
assert_equal('abcd', evaluate('str-slice(abcd,1,4)')) # at the end points
assert_equal('abcd', evaluate('str-slice(abcd,0,4)')) # when start is before the start of the string
assert_equal('abcd', evaluate('str-slice(abcd,1,100)')) # when end is past the end of the string
assert_equal('', evaluate('str-slice(abcd,2,1)')) # when end is before start
assert_equal('"bc"', evaluate('str-slice("abcd",2,3)')) # when used with a quoted string