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require_relative 'test_helper'
require 'tilt/string'
data = (<<'END').freeze
<html>
<body>
<h1>Hey #{name}!</h1>
<p>#{fail}</p>
</body>
</html>
END
describe 'tilt/string' do
it "registered for '.str' files" do
assert_equal Tilt::StringTemplate, Tilt['test.str']
end
it "loading and evaluating templates on #render" do
template = Tilt::StringTemplate.new { |t| "Hello World!" }
assert_equal "Hello World!", template.render
end
it "can be rendered more than once" do
template = Tilt::StringTemplate.new { |t| "Hello World!" }
3.times { assert_equal "Hello World!", template.render }
end
it "passing locals" do
template = Tilt::StringTemplate.new { 'Hey #{name}!' }
assert_equal "Hey Joe!", template.render(Object.new, :name => 'Joe')
end
it "evaluating in an object scope" do
template = Tilt::StringTemplate.new { 'Hey #{@name}!' }
scope = Object.new
scope.instance_variable_set :@name, 'Joe'
assert_equal "Hey Joe!", template.render(scope)
end
it "passing a block for yield" do
template = Tilt::StringTemplate.new { 'Hey #{yield}!' }
assert_equal "Hey Joe!", template.render { 'Joe' }
assert_equal "Hey Moe!", template.render { 'Moe' }
end
it "multiline templates" do
template = Tilt::StringTemplate.new { "Hello\nWorld!\n" }
assert_equal "Hello\nWorld!\n", template.render
end
it "backtrace file and line reporting without locals" do
template = Tilt::StringTemplate.new('test.str', 11) { data }
begin
template.render
fail 'should have raised an exception'
rescue => boom
assert_kind_of NameError, boom
line = boom.backtrace.grep(/\Atest\.str:/).first
assert line, "Backtrace didn't contain test.str"
_file, line, _meth = line.split(":")
skip if heredoc_line_number_bug?
assert_equal '13', line
end
end
it "backtrace file and line reporting with locals" do
template = Tilt::StringTemplate.new('test.str', 1) { data }
begin
template.render(nil, :name => 'Joe', :foo => 'bar')
fail 'should have raised an exception'
rescue => boom
assert_kind_of RuntimeError, boom
line = boom.backtrace.first
file, line, _meth = line.split(":")
assert_equal 'test.str', file
skip if heredoc_line_number_bug?
assert_equal '6', line
end
end
end
describe 'tilt/string (compiled)' do
after do
GC.start
end
_Scope = Class.new
it "compiling template source to a method" do
template = Tilt::StringTemplate.new { |t| "Hello World!" }
template.render(_Scope.new)
method = template.send(:compiled_method, [])
assert_kind_of UnboundMethod, method
end
it "loading and evaluating templates on #render" do
template = Tilt::StringTemplate.new { |t| "Hello World!" }
assert_equal "Hello World!", template.render(_Scope.new)
end
it "passing locals" do
template = Tilt::StringTemplate.new { 'Hey #{name}!' }
assert_equal "Hey Joe!", template.render(_Scope.new, :name => 'Joe')
assert_equal "Hey Moe!", template.render(_Scope.new, :name => 'Moe')
end
it "evaluating in an object scope" do
template = Tilt::StringTemplate.new { 'Hey #{@name}!' }
scope = _Scope.new
scope.instance_variable_set :@name, 'Joe'
assert_equal "Hey Joe!", template.render(scope)
scope.instance_variable_set :@name, 'Moe'
assert_equal "Hey Moe!", template.render(scope)
end
it "passing a block for yield" do
template = Tilt::StringTemplate.new { 'Hey #{yield}!' }
assert_equal "Hey Joe!", template.render(_Scope.new) { 'Joe' }
assert_equal "Hey Moe!", template.render(_Scope.new) { 'Moe' }
end
it "multiline templates" do
template = Tilt::StringTemplate.new { "Hello\nWorld!\n" }
assert_equal "Hello\nWorld!\n", template.render(_Scope.new)
end
it "template with '}'" do
template = Tilt::StringTemplate.new { "Hello }" }
assert_equal "Hello }", template.render
end
it "backtrace file and line reporting without locals" do
template = Tilt::StringTemplate.new('test.str', 11) { data }
begin
template.render(_Scope.new)
fail 'should have raised an exception'
rescue => boom
assert_kind_of NameError, boom
line = boom.backtrace.first
line = boom.backtrace.grep(/\Atest\.str:/).first
assert line, "Backtrace didn't contain test.str"
_file, line, _meth = line.split(":")
skip if heredoc_line_number_bug?
assert_equal '13', line
end
end
it "backtrace file and line reporting with locals" do
template = Tilt::StringTemplate.new('test.str') { data }
begin
template.render(_Scope.new, :name => 'Joe', :foo => 'bar')
fail 'should have raised an exception'
rescue => boom
assert_kind_of RuntimeError, boom
line = boom.backtrace.first
file, line, _meth = line.split(":")
assert_equal 'test.str', file
skip if heredoc_line_number_bug?
assert_equal '6', line
end
end
it "respects embedded fixed locals that are empty" do
template = Tilt::StringTemplate.new { <<'DATA' }
#{# locals: ()
1}
DATA
assert_equal "1\n", template.render(nil)
assert_raises(ArgumentError) { template.render(nil, :something => true) }
end
it "respects embedded fixed locals with optional keyword argument" do
template = Tilt::StringTemplate.new { <<'DATA' }
#{# locals: (name: "foo")
name}
DATA
assert_equal "foo\n", template.render(nil)
assert_equal "bar\n", template.render(nil, :name => "bar")
end
it "respects embedded fixed locals with required keyword argument" do
template = Tilt::StringTemplate.new { <<'DATA' }
#{# locals: (name:)
name}
DATA
assert_raises(ArgumentError) { template.render(nil) }
assert_equal "bar\n", template.render(nil, :name => "bar")
end if RUBY_VERSION >= '2.1'
it "respects embedded fixed locals with optional keyword argument and keyword splat" do
template = Tilt::StringTemplate.new { <<'DATA' }
#{# locals: (name: "foo", **args)
name + args[:bar].to_s}
DATA
assert_equal "foo\n", template.render(nil)
assert_equal "barbaz\n", template.render(nil, :name => "bar", :bar=>"baz")
end
it "respects embedded fixed locals with positional argument" do
template = Tilt::StringTemplate.new { <<'DATA' }
#{# locals: (args)
args[:name]}
DATA
assert_raises(ArgumentError) { template.render(nil) }
assert_equal "bar\n", template.render(nil, :name => "bar")
end
it "respects embedded fixed locals with block argument" do
template = Tilt::StringTemplate.new { <<'DATA' }
#{# locals: (name: "foo", &block)
block.call(name)}
DATA
assert_equal "FOO\n", template.render(nil, &:upcase)
assert_equal "BAR\n", template.render(nil, :name => "bar", &:upcase)
end
it "respects :fixed_locals option" do
template = Tilt::StringTemplate.new(fixed_locals: '(name: "foo")') { '#{name}\n' }
assert_equal "foo\n", template.render(nil)
assert_equal "bar\n", template.render(nil, :name => "bar")
end
it "respects :fixed_locals option in preference to :default_fixed_locals option" do
template = Tilt::StringTemplate.new(fixed_locals: '(name: "foo")', default_fixed_locals: '(name: "baz")') { '#{name}\n' }
assert_equal "foo", template.render(nil).strip
assert_equal "bar", template.render(nil, :name => "bar").strip
end
it "respects :default_fixed_locals option if there are no embedded fixed locals" do
template = Tilt::StringTemplate.new(default_fixed_locals: '(name: "foo")') { '#{name}\n' }
assert_equal "foo", template.render(nil).strip
assert_equal "bar", template.render(nil, :name => "bar").strip
end
it "respects embedded fixed locals in preference to :default_fixed_locals option" do
template = Tilt::StringTemplate.new(default_fixed_locals: '(name: "foo")') { <<'DATA' }
#{# locals: ()
1}
DATA
assert_equal "1", template.render(nil).strip
assert_raises(ArgumentError) { template.render(nil, :something => true) }
end
it "ignores embedded fixed locals when Tilt.extract_fixed_locals is true and extract_fixed_locals: false option is given" do
template = Tilt::StringTemplate.new(extract_fixed_locals: false) { <<'DATA' }
#{# locals: ()
1}
DATA
assert_equal "1", template.render(nil).strip
assert_equal "1", template.render(nil, :something=>true).strip
end
it "handles eager compiling when embedded fixed locals and :scope_class are present" do
template = Tilt::StringTemplate.new(scope_class: Object) { <<'DATA' }
#{# locals: ()
1}
DATA
assert_equal "1", template.render(nil).strip
assert_raises(ArgumentError) { template.render(nil, :something => true) }
end
without_extract_fixed_locals "ignores embedded fixed locals when Tilt.extract_fixed_locals is false" do
template = Tilt::StringTemplate.new { <<'DATA' }
#{# locals: ()
1}
DATA
assert_equal "1", template.render(nil).strip
assert_equal "1", template.render(nil, :something=>true).strip
end
without_extract_fixed_locals "respects embedded fixed locals when Tilt.extract_fixed_locals is false and :extract_fixed_locals option is given" do
template = Tilt::StringTemplate.new(extract_fixed_locals: true) { <<'DATA' }
#{# locals: ()
1}
DATA
assert_equal "1", template.render(nil).strip
assert_raises(ArgumentError) { template.render(nil, :something => true) }
end
without_extract_fixed_locals "respects :fixed_locals option when Tilt.extract_fixed_locals is false" do
template = Tilt::StringTemplate.new(fixed_locals: '(name: "foo")') { '#{name}\n' }
assert_equal "foo\n", template.render(nil)
assert_equal "bar\n", template.render(nil, :name => "bar")
end
if RUBY_VERSION >= '2.3'
it "uses frozen literal strings if :freeze option is used" do
template = Tilt::StringTemplate.new(nil, :freeze => true) { |t| '#{"".frozen?}' }
assert_equal "true", template.render
end
end
end
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