1 files changed, 78 insertions, 0 deletions
diff --git a/spec/ruby/library/coverage/result_spec.rb b/spec/ruby/library/coverage/result_spec.rb
new file mode 100644
index 0000000000..adcc51dc80
--- /dev/null
+++ b/spec/ruby/library/coverage/result_spec.rb
@@ -0,0 +1,78 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+require fixture __FILE__, 'spec_helper'
+require 'coverage'
+
+describe 'Coverage.result' do
+  before :all do
+    @class_file = fixture __FILE__, 'some_class.rb'
+    @config_file = fixture __FILE__, 'start_coverage.rb'
+  end
+
+  after :each do
+    $LOADED_FEATURES.delete(@class_file)
+    $LOADED_FEATURES.delete(@config_file)
+  end
+
+  it 'gives the covered files as a hash with arrays of count or nil' do
+    Coverage.start
+    require @class_file.chomp('.rb')
+    result = CoverageSpecs.filtered_result
+
+    result.should == {
+      @class_file => [
+        nil, nil, 1, nil, nil, 1, nil, nil, 0, nil, nil, nil, nil, nil, nil, nil
+      ]
+    }
+  end
+
+  it 'no requires/loads should give empty hash' do
+    Coverage.start
+    result = CoverageSpecs.filtered_result
+
+    result.should == {}
+  end
+
+  it 'second call should give exception' do
+    Coverage.start
+    require @class_file.chomp('.rb')
+    Coverage.result
+    -> { Coverage.result }
+      .should raise_error(RuntimeError, 'coverage measurement is not enabled')
+  end
+
+  it 'second run should give same result' do
+    Coverage.start
+    load @class_file
+    result1 = CoverageSpecs.filtered_result
+
+    Coverage.start
+    load @class_file
+    result2 = CoverageSpecs.filtered_result
+
+    result2.should == result1
+  end
+
+  it 'second run without load/require should give empty hash' do
+    Coverage.start
+    require @class_file.chomp('.rb')
+    Coverage.result
+
+    Coverage.start
+    result = CoverageSpecs.filtered_result
+
+    result.should == {}
+  end
+
+  it 'second Coverage.start does nothing' do
+    Coverage.start
+    require @config_file.chomp('.rb')
+    result = CoverageSpecs.filtered_result
+
+    result.should == { @config_file => [1, 1, 1] }
+  end
+
+  it 'does not include the file starting coverage since it is not tracked' do
+    require @config_file.chomp('.rb')
+    CoverageSpecs.filtered_result.should_not include(@config_file)
+  end
+end