1 files changed, 119 insertions, 0 deletions
diff --git a/spec/ruby/language/heredoc_spec.rb b/spec/ruby/language/heredoc_spec.rb
new file mode 100644
index 0000000000..535f18cba8
--- /dev/null
+++ b/spec/ruby/language/heredoc_spec.rb
@@ -0,0 +1,119 @@
+# -*- encoding: us-ascii -*-
+
+require_relative '../spec_helper'
+
+describe "Heredoc string" do
+
+  before :each do
+    @ip = 'xxx' # used for interpolation
+  end
+
+  it "allows HEREDOC with <<identifier, interpolated" do
+    s = <<HERE
+foo bar#{@ip}
+HERE
+    s.should == "foo barxxx\n"
+    s.encoding.should == Encoding::US_ASCII
+  end
+
+  it 'allow HEREDOC with <<"identifier", interpolated' do
+    s = <<"HERE"
+foo bar#{@ip}
+HERE
+    s.should == "foo barxxx\n"
+    s.encoding.should == Encoding::US_ASCII
+  end
+
+  it "allows HEREDOC with <<'identifier', no interpolation" do
+    s = <<'HERE'
+foo bar#{@ip}
+HERE
+    s.should == 'foo bar#{@ip}' + "\n"
+    s.encoding.should == Encoding::US_ASCII
+  end
+
+  it "allows HEREDOC with <<-identifier, allowing to indent identifier, interpolated" do
+    s = <<-HERE
+    foo bar#{@ip}
+    HERE
+
+    s.should == "    foo barxxx\n"
+    s.encoding.should == Encoding::US_ASCII
+  end
+
+  it 'allows HEREDOC with <<-"identifier", allowing to indent identifier, interpolated' do
+    s = <<-"HERE"
+    foo bar#{@ip}
+    HERE
+
+    s.should == "    foo barxxx\n"
+    s.encoding.should == Encoding::US_ASCII
+  end
+
+  it "allows HEREDOC with <<-'identifier', allowing to indent identifier, no interpolation" do
+    s = <<-'HERE'
+    foo bar#{@ip}
+    HERE
+
+    s.should == '    foo bar#{@ip}' + "\n"
+    s.encoding.should == Encoding::US_ASCII
+  end
+
+  it 'raises SyntaxError if quoted HEREDOC identifier is ending not on same line' do
+    -> {
+      eval %{<<"HERE\n"\nraises syntax error\nHERE}
+    }.should.raise(SyntaxError)
+  end
+
+  it "allows HEREDOC with <<~'identifier', allowing to indent identifier and content" do
+    require_relative 'fixtures/squiggly_heredoc'
+    SquigglyHeredocSpecs.message.should == "character density, n.:\n  The number of very weird people in the office.\n"
+  end
+
+  it "trims trailing newline character for blank HEREDOC with <<~'identifier'" do
+    require_relative 'fixtures/squiggly_heredoc'
+    SquigglyHeredocSpecs.blank.should == ""
+  end
+
+  it 'allows HEREDOC with <<~identifier, interpolated' do
+    require_relative 'fixtures/squiggly_heredoc'
+    SquigglyHeredocSpecs.unquoted.should == "unquoted interpolated\n"
+  end
+
+  it 'allows HEREDOC with <<~"identifier", interpolated' do
+    require_relative 'fixtures/squiggly_heredoc'
+    SquigglyHeredocSpecs.doublequoted.should == "doublequoted interpolated\n"
+  end
+
+  it "allows HEREDOC with <<~'identifier', no interpolation" do
+    require_relative 'fixtures/squiggly_heredoc'
+    SquigglyHeredocSpecs.singlequoted.should == "singlequoted \#{\"interpolated\"}\n"
+  end
+
+  it "allows HEREDOC with <<~'identifier', no interpolation, with backslash" do
+    require_relative 'fixtures/squiggly_heredoc'
+    SquigglyHeredocSpecs.backslash.should == "a\nbc\n"
+  end
+
+  it "selects the least-indented line and removes its indentation from all the lines" do
+    require_relative 'fixtures/squiggly_heredoc'
+    SquigglyHeredocSpecs.least_indented_on_the_first_line.should == "a\n  b\n    c\n"
+    SquigglyHeredocSpecs.least_indented_on_the_last_line.should == "    a\n  b\nc\n"
+  end
+
+  it "selects the least-indented line and removes its indentation from all the lines for <<~'identifier'" do
+    require_relative 'fixtures/squiggly_heredoc'
+    SquigglyHeredocSpecs.least_indented_on_the_first_line_single.should == "a\n  b\n    c\n"
+    SquigglyHeredocSpecs.least_indented_on_the_last_line_single.should == "    a\n  b\nc\n"
+  end
+
+  it "reports line numbers inside HEREDOC with method call" do
+    -> {
+      <<-HERE.chomp
+        a
+        b
+        #{c}
+      HERE
+    }.should.raise(NameError) { |e| e.backtrace[0].should.start_with?("#{__FILE__}:#{__LINE__ - 2}") }
+  end
+end