1 files changed, 87 insertions, 0 deletions
diff --git a/spec/rubyspec/language/heredoc_spec.rb b/spec/rubyspec/language/heredoc_spec.rb
new file mode 100644
index 0000000000..436fcb9c9e
--- /dev/null
+++ b/spec/rubyspec/language/heredoc_spec.rb
@@ -0,0 +1,87 @@
+# -*- encoding: us-ascii -*-
+
+require File.expand_path('../../spec_helper', __FILE__)
+
+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"
+  end
+
+  it 'allow HEREDOC with <<"identifier", interpolated' do
+    s = <<"HERE"
+foo bar#{@ip}
+HERE
+    s.should == "foo barxxx\n"
+  end
+
+  it "allows HEREDOC with <<'identifier', no interpolation" do
+    s = <<'HERE'
+foo bar#{@ip}
+HERE
+    s.should == 'foo bar#{@ip}' + "\n"
+  end
+
+  it "allows HEREDOC with <<-identifier, allowing to indent identifier, interpolated" do
+    s = <<-HERE
+    foo bar#{@ip}
+    HERE
+
+    s.should == "    foo barxxx\n"
+  end
+
+  it 'allows HEREDOC with <<-"identifier", allowing to indent identifier, interpolated' do
+    s = <<-"HERE"
+    foo bar#{@ip}
+    HERE
+
+    s.should == "    foo barxxx\n"
+  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"
+  end
+
+  ruby_version_is "2.3" do
+    it "allows HEREDOC with <<~'identifier', allowing to indent identifier and content" do
+      require File.expand_path('../fixtures/squiggly_heredoc', __FILE__)
+      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 File.expand_path('../fixtures/squiggly_heredoc', __FILE__)
+      SquigglyHeredocSpecs.blank.should == ""
+    end
+
+    it 'allows HEREDOC with <<~identifier, interpolated' do
+      require File.expand_path('../fixtures/squiggly_heredoc', __FILE__)
+      SquigglyHeredocSpecs.unquoted.should == "unquoted interpolated\n"
+    end
+
+    it 'allows HEREDOC with <<"identifier", interpolated' do
+      require File.expand_path('../fixtures/squiggly_heredoc', __FILE__)
+      SquigglyHeredocSpecs.doublequoted.should == "doublequoted interpolated\n"
+    end
+
+    it "allows HEREDOC with <<'identifier', no interpolation" do
+      require File.expand_path('../fixtures/squiggly_heredoc', __FILE__)
+      SquigglyHeredocSpecs.singlequoted.should == "singlequoted \#{\"interpolated\"}\n"
+    end
+
+    it "selects the least-indented line and removes its indentation from all the lines" do
+      require File.expand_path('../fixtures/squiggly_heredoc', __FILE__)
+      SquigglyHeredocSpecs.least_indented_on_the_last_line.should == "    a\n  b\nc\n"
+    end
+  end
+end