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# frozen_string_literal: true
require "abstract_unit"
require "active_support/core_ext/string/inflections"
require "yaml"
class SafeBufferTest < ActiveSupport::TestCase
def setup
@buffer = ActiveSupport::SafeBuffer.new
end
def test_titleize
assert_equal "Foo", "foo".html_safe.titleize
end
test "Should look like a string" do
assert @buffer.is_a?(String)
assert_equal "", @buffer
end
test "Should escape a raw string which is passed to them" do
@buffer << "<script>"
assert_equal "&lt;script&gt;", @buffer
end
test "Should NOT escape a safe value passed to it" do
@buffer << "<script>".html_safe
assert_equal "<script>", @buffer
end
test "Should not mess with an innocuous string" do
@buffer << "Hello"
assert_equal "Hello", @buffer
end
test "Should not mess with a previously escape test" do
@buffer << ERB::Util.html_escape("<script>")
assert_equal "&lt;script&gt;", @buffer
end
test "Should be considered safe" do
assert @buffer.html_safe?
end
test "Should return a safe buffer when calling to_s" do
new_buffer = @buffer.to_s
assert_equal ActiveSupport::SafeBuffer, new_buffer.class
end
test "Should be converted to_yaml" do
str = "hello!"
buf = ActiveSupport::SafeBuffer.new str
yaml = buf.to_yaml
assert_match(/^--- #{str}/, yaml)
assert_equal "hello!", YAML.load(yaml)
end
test "Should work in nested to_yaml conversion" do
str = "hello!"
data = { "str" => ActiveSupport::SafeBuffer.new(str) }
yaml = YAML.dump data
assert_equal({ "str" => str }, YAML.load(yaml))
end
test "Should work with primitive-like-strings in to_yaml conversion" do
assert_equal "true", YAML.load(ActiveSupport::SafeBuffer.new("true").to_yaml)
assert_equal "false", YAML.load(ActiveSupport::SafeBuffer.new("false").to_yaml)
assert_equal "1", YAML.load(ActiveSupport::SafeBuffer.new("1").to_yaml)
assert_equal "1.1", YAML.load(ActiveSupport::SafeBuffer.new("1.1").to_yaml)
end
test "Should work with underscore" do
str = "MyTest".html_safe.underscore
assert_equal "my_test", str
end
test "Should not return safe buffer from gsub" do
altered_buffer = @buffer.gsub("", "asdf")
assert_equal "asdf", altered_buffer
assert !altered_buffer.html_safe?
end
test "Should not return safe buffer from gsub!" do
@buffer.gsub!("", "asdf")
assert_equal "asdf", @buffer
assert !@buffer.html_safe?
end
test "Should escape dirty buffers on add" do
clean = "hello".html_safe
@buffer.gsub!("", "<>")
assert_equal "hello&lt;&gt;", clean + @buffer
end
test "Should concat as a normal string when safe" do
clean = "hello".html_safe
@buffer.gsub!("", "<>")
assert_equal "<>hello", @buffer + clean
end
test "Should preserve html_safe? status on copy" do
@buffer.gsub!("", "<>")
assert !@buffer.dup.html_safe?
end
test "Should return safe buffer when added with another safe buffer" do
clean = "<script>".html_safe
result_buffer = @buffer + clean
assert result_buffer.html_safe?
assert_equal "<script>", result_buffer
end
test "Should raise an error when safe_concat is called on unsafe buffers" do
@buffer.gsub!("", "<>")
assert_raise ActiveSupport::SafeBuffer::SafeConcatError do
@buffer.safe_concat "BUSTED"
end
end
test "Should not fail if the returned object is not a string" do
assert_kind_of NilClass, @buffer.slice("chipchop")
end
test "clone_empty returns an empty buffer" do
assert_equal "", ActiveSupport::SafeBuffer.new("foo").clone_empty
end
test "clone_empty keeps the original dirtyness" do
assert @buffer.clone_empty.html_safe?
assert !@buffer.gsub!("", "").clone_empty.html_safe?
end
test "Should be safe when sliced if original value was safe" do
new_buffer = @buffer[0, 0]
assert_not_nil new_buffer
assert new_buffer.html_safe?, "should be safe"
end
test "Should continue unsafe on slice" do
x = "foo".html_safe.gsub!("f", '<script>alert("lolpwnd");</script>')
# calling gsub! makes the dirty flag true
assert !x.html_safe?, "should not be safe"
# getting a slice of it
y = x[0..-1]
# should still be unsafe
assert !y.html_safe?, "should not be safe"
end
test "Should work with interpolation (array argument)" do
x = "foo %s bar".html_safe % ["qux"]
assert_equal "foo qux bar", x
end
test "Should work with interpolation (hash argument)" do
x = "foo %{x} bar".html_safe % { x: "qux" }
assert_equal "foo qux bar", x
end
test "Should escape unsafe interpolated args" do
x = "foo %{x} bar".html_safe % { x: "<br/>" }
assert_equal "foo &lt;br/&gt; bar", x
end
test "Should not escape safe interpolated args" do
x = "foo %{x} bar".html_safe % { x: "<br/>".html_safe }
assert_equal "foo <br/> bar", x
end
test "Should interpolate to a safe string" do
x = "foo %{x} bar".html_safe % { x: "qux" }
assert x.html_safe?, "should be safe"
end
test "Should not affect frozen objects when accessing characters" do
x = "Hello".html_safe
assert_nil x[/a/, 1]
end
end