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require 'spec_helper'
describe Proc do
describe "#to_ast" do
it "return Parser::AST::Node" do
ast = -> { 1 + 1 }.to_ast
expect(ast).to be_a(Parser::AST::Node)
expect(ast.type).to eq(:block)
end
context "proc variation" do
it "converts Kernel#proc" do
pr = proc { p 1 }
expect(pr.to_ast).to be_a(AST::Node)
end
it "converts Proc.new" do
pr = Proc.new do |b|
puts b
end
expect(pr.to_ast).to be_a(AST::Node)
end
it "long proc" do
pr = Proc.new do |b|
p 1
p 1
p 1
p 1
p 1
p 1
p 1
p 1
p 1
p 1
p 1
p 1
p 1
p 1
p 1
p 1
p 1
p 1
p 1
end
expect(pr.to_ast).to be_a(AST::Node)
end
it "converts block passing method" do
def receive_block(&block)
block.to_ast
end
block_pass = receive_block do |n|
puts n
[1, 2, 3].map do |i|
i * 2
end
end
block_pass2 = receive_block { %w(a b c).map(&:upcase) }
expect(block_pass).to be_a(AST::Node)
expect(block_pass2).to be_a(AST::Node)
end
it "raise ProcToAst::MultiMatchError, when other block exists on same line " do
_ = [1].map {|i| i * 2}; fuga = ->(a) {
p a
}
expect{ fuga.to_ast }.to raise_error(ProcToAst::MultiMatchError)
end
it "inner array" do
array = [
1,
-> { 2 },
[
-> {
3
},
],
proc do |a|
[
a,
]
end
]
expect(array[1].to_ast).to be_a(AST::Node)
expect(array[1].to_source).to eq("lambda {\n 2\n}")
expect(array[2][0].to_source).to eq("lambda {\n 3\n}")
expect(array[3].to_source).to eq("proc { |a,|\n [a]\n}")
end
it "inner two dimension array" do
array = [
[1, 2, -> { 3 }],
[4, 5, -> { 6 }]
]
expect(array[0][2].to_ast).to be_a(AST::Node)
expect(array[1][2].to_ast).to be_a(AST::Node)
end
it "inner hash" do
hash_oneline = {a: -> { 1 }}
expect(hash_oneline[:a].to_ast).to be_a(AST::Node)
expect(hash_oneline[:a].to_source).to eq("lambda {\n 1\n}")
end
it "inner multiline hash" do
hash = {
a: -> { 1 },
:b => -> { 2 },
c: -> {
3
},
d: -> { 4 }
}
expect(hash[:a].to_ast).to be_a(AST::Node)
expect(hash[:a].to_source).to eq("lambda {\n 1\n}")
expect(hash[:b].to_ast).to be_a(AST::Node)
expect(hash[:b].to_source).to eq("lambda {\n 2\n}")
expect(hash[:c].to_ast).to be_a(AST::Node)
expect(hash[:c].to_source).to eq("lambda {\n 3\n}")
expect(hash[:d].to_ast).to be_a(AST::Node)
expect(hash[:d].to_source).to eq("lambda {\n 4\n}")
end
it "inner another hash" do
hash = {
a: 1, :b => -> { 2 },
}
expect(hash[:b].to_ast).to be_a(AST::Node)
expect(hash[:b].to_source).to eq("lambda {\n 2\n}")
end
end
end
describe "#to_source" do
it "return source code string" do
fuga = ->(a) {
p a
}
expect(fuga.to_source).to eq("lambda { |a,|\n p(a)\n}")
expect(fuga.to_source(highlight: true)).to eq("\e[01mlambda\e[00m\e[38;5;230m \e[39m\e[38;5;87m{\e[39m\e[38;5;230m \e[39m\e[38;5;87;01m|\e[39;00m\e[38;5;230ma\e[39m\e[38;5;87m,\e[39m\e[38;5;87;01m|\e[39;00m\e[38;5;230m\e[39m\n\e[38;5;230m \e[39m\e[01mp\e[00m\e[38;5;87m(\e[39m\e[38;5;230ma\e[39m\e[38;5;87m)\e[39m\e[38;5;230m\e[39m\n\e[38;5;230m\e[39m\e[38;5;87m}\e[39m")
end
it "charset is UTF-8" do
fuga = ->(a) {
p a
}
expect(fuga.to_source.encoding).to eq(Encoding::UTF_8)
end
it "can handle multibyte characters" do
pr = ->(a) { a + "ほげほげ" }
expect(pr.to_source).to eq("lambda { |a,|\n a + \"\\xE3\\x81\\xBB\\xE3\\x81\\x92\\xE3\\x81\\xBB\\xE3\\x81\\x92\"\n}")
end
end
describe "#to_raw_source" do
it "return original source code" do
pr = ->(a) { a + 1 }
expect(pr.to_raw_source).to eq("->(a) { a + 1 }")
end
it "charset is UTF-8" do
pr = ->(a) { a + 1 }
expect(pr.to_raw_source.encoding).to eq(Encoding::UTF_8)
end
it "can handle multibyte characters" do
pr = ->(a) { a + "ほげほげ" }
expect(pr.to_raw_source).to eq("->(a) { a + \"ほげほげ\" }")
expect(pr.to_raw_source(highlight: true)).to eq("\e[38;5;87;01m->\e[39;00m\e[38;5;87m(\e[39m\e[38;5;230ma\e[39m\e[38;5;87m)\e[39m\e[38;5;230m \e[39m\e[38;5;87m{\e[39m\e[38;5;230m \e[39m\e[38;5;230ma\e[39m\e[38;5;230m \e[39m\e[38;5;87;01m+\e[39;00m\e[38;5;230m \e[39m\e[38;5;229;01m\"ほげほげ\"\e[39;00m\e[38;5;230m \e[39m\e[38;5;87m}\e[39m")
end
end
end
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