Introduce URI::File to handle file URI scheme

* the default value of URI::File's authority is "" (localhost).
  Both nil and "localhost" is normalized to "" by default.
* URI::File ignores setting userinfo and port
[Feature #14035]
fix https://github.com/ruby/ruby/pull/1719
fic https://github.com/ruby/ruby/pull/1832

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62767 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 67 insertions, 0 deletions

diff --git a/test/uri/test_file.rb b/test/uri/test_file.rb
new file mode 100644
index 0000000000..7e542b652d
--- /dev/null
+++ b/test/uri/test_file.rb
@@ -0,0 +1,67 @@
+# frozen_string_literal: false
+require 'test/unit'
+require 'uri/file'
+
+class URI::TestFile < Test::Unit::TestCase
+  def test_parse
+    u = URI("file://example.com/file")
+    assert_equal "/file", u.path
+
+    u = URI("file://localhost/file")
+    assert_equal "/file", u.path
+    assert_equal "file:///file", u.to_s
+
+    u = URI("file://localhost:30/file")
+    assert_equal "", u.host
+    assert_equal nil, u.port
+    assert_equal "/file", u.path
+    assert_equal "file:///file", u.to_s
+
+    u = URI("file:///file")
+    assert_equal "/file", u.path
+    assert_equal "file:///file", u.to_s
+
+    u = URI("file:/file")
+    assert_equal "/file", u.path
+    assert_equal "file:///file", u.to_s
+
+    u = URI("file://foo:pass@example.com/file")
+    assert_equal "/file", u.path
+    assert_equal nil, u.user
+    assert_equal nil, u.password
+
+    u = URI("file:///c:/path/to/file")
+    assert_equal "/c:/path/to/file", u.path
+
+    # this form is not supported
+    u = URI("file:c:/path/to/file")
+    assert_equal "c:/path/to/file", u.opaque
+
+  end
+
+  def test_build
+    u = URI::File.build(scheme: "file", host: "example.com", path:"/file")
+    assert_equal "/file", u.path
+    assert_equal "file://example.com/file", u.to_s
+    assert_raise(URI::InvalidURIError){ u.user = "foo" }
+    assert_raise(URI::InvalidURIError){ u.password = "foo" }
+    assert_raise(URI::InvalidURIError){ u.userinfo = "foo" }
+    assert_raise(URI::InvalidURIError){ URI::File.build(scheme: "file", userinfo: "foo", host: "example.com", path:"/file") }
+
+    u = URI::File.build(scheme: "file", path:"/file")
+    assert_equal "", u.host
+    assert_equal "/file", u.path
+    assert_equal "file:///file", u.to_s
+
+    u = URI::File.build(scheme: "file", host: "localhost", path:"/file")
+    assert_equal "", u.host
+    assert_equal "/file", u.path
+    assert_equal "file:///file", u.to_s
+
+    u = URI::File.build(scheme: "file", path:"/file", port: 30)
+    assert_equal "", u.host
+    assert_equal nil, u.port
+    assert_equal "/file", u.path
+    assert_equal "file:///file", u.to_s
+  end
+end