Added lots of unit tests.

Theses actually come from the library files; now they are included. Also, rake test and test:all don't test the scanners now; you have to start them using rake test:scanners.

1 files changed, 63 insertions, 0 deletions

diff --git a/test/unit/lines_of_code.rb b/test/unit/lines_of_code.rb
new file mode 100644
index 0000000..a76fed6
--- /dev/null
+++ b/test/unit/lines_of_code.rb
@@ -0,0 +1,63 @@
+require 'test/unit'
+require 'coderay'
+$VERBOSE = true
+
+class LinesOfCodeTest < Test::Unit::TestCase
+  
+  def test_creation
+    assert CodeRay::Encoders::LinesOfCode < CodeRay::Encoders::Encoder
+    filter = nil
+    assert_nothing_raised do
+      filter = CodeRay.encoder :loc
+    end
+    assert_kind_of CodeRay::Encoders::LinesOfCode, filter
+    assert_nothing_raised do
+      filter = CodeRay.encoder :lines_of_code
+    end
+    assert_kind_of CodeRay::Encoders::LinesOfCode, filter
+  end
+  
+  def test_lines_of_code
+    tokens = CodeRay.scan <<-RUBY, :ruby
+#!/usr/bin/env ruby
+
+# a minimal Ruby program
+puts "Hello world!"
+    RUBY
+    assert_equal 1, CodeRay::Encoders::LinesOfCode.new.encode_tokens(tokens)
+    assert_equal 1, tokens.lines_of_code
+    assert_equal 1, tokens.loc
+  end
+  
+  class ScannerMockup
+    KINDS_NOT_LOC = [:space]
+  end
+  
+  def test_filtering_block_tokens
+    tokens = CodeRay::Tokens.new
+    tokens.concat ["Hello\n", :world]
+    tokens.concat ["\n", :space]
+    tokens.concat ["Hello\n", :comment]
+    
+    if defined? JRUBY_VERSION
+      $stderr.puts 'Skipped test because of JRUBY bug.'
+    else
+      stderr, fake_stderr = $stderr, Object.new
+      begin
+        $err = ''
+        def fake_stderr.write x
+          $err << x
+        end
+        $stderr = fake_stderr
+        assert_equal 1, tokens.lines_of_code
+        assert_equal "Tokens have no associated scanner, counting all nonempty lines.\n", $err
+      ensure
+        $stderr = stderr
+      end
+    end
+    
+    tokens.scanner = ScannerMockup.new
+    assert_equal 2, tokens.lines_of_code
+  end
+  
+end
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