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# -*- encoding: utf-8 -*-
require_relative '../../spec_helper'
require_relative 'shared/encode'
describe "String#encode" do
before :each do
@external = Encoding.default_external
@internal = Encoding.default_internal
end
after :each do
Encoding.default_external = @external
Encoding.default_internal = @internal
end
it_behaves_like :string_encode, :encode
describe "when passed no options" do
it "returns a copy when Encoding.default_internal is nil" do
Encoding.default_internal = nil
str = "あ"
encoded = str.encode
encoded.should_not equal(str)
encoded.should == str
end
it "returns a copy for a ASCII-only String when Encoding.default_internal is nil" do
Encoding.default_internal = nil
str = "abc"
encoded = str.encode
encoded.should_not equal(str)
encoded.should == str
end
it "encodes an ascii substring of a binary string to UTF-8" do
x82 = [0x82].pack('C')
str = "#{x82}foo".force_encoding("binary")[1..-1].encode("utf-8")
str.should == "foo".force_encoding("utf-8")
str.encoding.should equal(Encoding::UTF_8)
end
end
describe "when passed to encoding" do
it "returns a copy when passed the same encoding as the String" do
str = "あ"
encoded = str.encode(Encoding::UTF_8)
encoded.should_not equal(str)
encoded.should == str
end
it "round trips a String" do
str = "abc def".force_encoding Encoding::US_ASCII
str.encode("utf-32be").encode("ascii").should == "abc def"
end
end
describe "when passed options" do
it "returns a copy when Encoding.default_internal is nil" do
Encoding.default_internal = nil
str = "あ"
str.encode(invalid: :replace).should_not equal(str)
end
it "normalizes newlines" do
"\r\nfoo".encode(universal_newline: true).should == "\nfoo"
"\rfoo".encode(universal_newline: true).should == "\nfoo"
end
it "replaces invalid encoding in source with default replacement" do
encoded = "ち\xE3\x81\xFF".encode("UTF-16LE", invalid: :replace)
encoded.should == "\u3061\ufffd\ufffd".encode("UTF-16LE")
encoded.encode("UTF-8").should == "ち\ufffd\ufffd"
end
it "replaces invalid encoding in source with a specified replacement" do
encoded = "ち\xE3\x81\xFF".encode("UTF-16LE", invalid: :replace, replace: "foo")
encoded.should == "\u3061foofoo".encode("UTF-16LE")
encoded.encode("UTF-8").should == "ちfoofoo"
end
it "replace multiple invalid bytes at the end with a single replacement character" do
"\xE3\x81\x93\xE3\x81".encode("UTF-8", invalid: :replace).should == "\u3053\ufffd"
end
it "replaces invalid encoding in source using a specified replacement even when a fallback is given" do
encoded = "ち\xE3\x81\xFF".encode("UTF-16LE", invalid: :replace, replace: "foo", fallback: -> c { "bar" })
encoded.should == "\u3061foofoo".encode("UTF-16LE")
encoded.encode("UTF-8").should == "ちfoofoo"
end
it "replaces undefined encoding in destination with default replacement" do
encoded = "B\ufffd".encode(Encoding::US_ASCII, undef: :replace)
encoded.should == "B?".encode(Encoding::US_ASCII)
encoded.encode("UTF-8").should == "B?"
end
it "replaces undefined encoding in destination with a specified replacement" do
encoded = "B\ufffd".encode(Encoding::US_ASCII, undef: :replace, replace: "foo")
encoded.should == "Bfoo".encode(Encoding::US_ASCII)
encoded.encode("UTF-8").should == "Bfoo"
end
it "replaces undefined encoding in destination with a specified replacement even if a fallback is given" do
encoded = "B\ufffd".encode(Encoding::US_ASCII, undef: :replace, replace: "foo", fallback: proc {|x| "bar"})
encoded.should == "Bfoo".encode(Encoding::US_ASCII)
encoded.encode("UTF-8").should == "Bfoo"
end
it "replaces undefined encoding in destination using a fallback proc" do
encoded = "B\ufffd".encode(Encoding::US_ASCII, fallback: proc {|x| "bar"})
encoded.should == "Bbar".encode(Encoding::US_ASCII)
encoded.encode("UTF-8").should == "Bbar"
end
it "replaces invalid encoding in source using replace even when fallback is given as proc" do
encoded = "ち\xE3\x81\xFF".encode("UTF-16LE", invalid: :replace, replace: "foo", fallback: proc {|x| "bar"})
encoded.should == "\u3061foofoo".encode("UTF-16LE")
encoded.encode("UTF-8").should == "ちfoofoo"
end
end
describe "when passed to, from" do
it "returns a copy in the destination encoding when both encodings are the same" do
str = "あ"
str.force_encoding("binary")
encoded = str.encode("utf-8", "utf-8")
encoded.should_not equal(str)
encoded.should == str.force_encoding("utf-8")
encoded.encoding.should == Encoding::UTF_8
end
it "returns the transcoded string" do
str = "\x00\x00\x00\x1F"
str.encode(Encoding::UTF_8, Encoding::UTF_16BE).should == "\u0000\u001f"
end
end
describe "when passed to, options" do
it "returns a copy when the destination encoding is the same as the String encoding" do
str = "あ"
encoded = str.encode(Encoding::UTF_8, undef: :replace)
encoded.should_not equal(str)
encoded.should == str
end
end
describe "when passed to, from, options" do
it "returns a copy when both encodings are the same" do
str = "あ"
encoded = str.encode("utf-8", "utf-8", invalid: :replace)
encoded.should_not equal(str)
encoded.should == str
end
it "returns a copy in the destination encoding when both encodings are the same" do
str = "あ"
str.force_encoding("binary")
encoded = str.encode("utf-8", "utf-8", invalid: :replace)
encoded.should_not equal(str)
encoded.should == str.force_encoding("utf-8")
encoded.encoding.should == Encoding::UTF_8
end
end
end
describe "String#encode!" do
before :each do
@external = Encoding.default_external
@internal = Encoding.default_internal
end
after :each do
Encoding.default_external = @external
Encoding.default_internal = @internal
end
it_behaves_like :string_encode, :encode!
it "raises a FrozenError when called on a frozen String" do
-> { "foo".freeze.encode!("euc-jp") }.should raise_error(FrozenError)
end
# http://redmine.ruby-lang.org/issues/show/1836
it "raises a FrozenError when called on a frozen String when it's a no-op" do
-> { "foo".freeze.encode!("utf-8") }.should raise_error(FrozenError)
end
describe "when passed no options" do
it "returns self when Encoding.default_internal is nil" do
Encoding.default_internal = nil
str = "あ"
str.encode!.should equal(str)
end
it "returns self for a ASCII-only String when Encoding.default_internal is nil" do
Encoding.default_internal = nil
str = "abc"
str.encode!.should equal(str)
end
end
describe "when passed options" do
it "returns self for ASCII-only String when Encoding.default_internal is nil" do
Encoding.default_internal = nil
str = "abc"
str.encode!(invalid: :replace).should equal(str)
end
end
describe "when passed to encoding" do
it "returns self" do
str = "abc"
result = str.encode!(Encoding::BINARY)
result.encoding.should equal(Encoding::BINARY)
result.should equal(str)
end
end
describe "when passed to, from" do
it "returns self" do
str = "ああ"
result = str.encode!("euc-jp", "utf-8")
result.encoding.should equal(Encoding::EUC_JP)
result.should equal(str)
end
end
end
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