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require_relative '../../spec_helper'
require 'coverage'
describe 'Coverage.start' do
before :each do
Coverage.should_not.running?
end
after :each do
Coverage.result(stop: true, clear: true) if Coverage.running?
end
it "enables the coverage measurement" do
Coverage.start
Coverage.should.running?
end
it "returns nil" do
Coverage.start.should == nil
end
ruby_version_is '3.1' do
it 'raises error when repeated Coverage.start call happens' do
Coverage.start
-> {
Coverage.start
}.should raise_error(RuntimeError, 'coverage measurement is already setup')
end
end
ruby_version_is '3.2' do
it "accepts :all optional argument" do
Coverage.start(:all)
Coverage.should.running?
end
it "accepts lines: optional keyword argument" do
Coverage.start(lines: true)
Coverage.should.running?
end
it "accepts branches: optional keyword argument" do
Coverage.start(branches: true)
Coverage.should.running?
end
it "accepts methods: optional keyword argument" do
Coverage.start(methods: true)
Coverage.should.running?
end
it "accepts eval: optional keyword argument" do
Coverage.start(eval: true)
Coverage.should.running?
end
it "accepts oneshot_lines: optional keyword argument" do
Coverage.start(oneshot_lines: true)
Coverage.should.running?
end
it "ignores unknown keyword arguments" do
Coverage.start(foo: true)
Coverage.should.running?
end
it "expects a Hash if not passed :all" do
-> {
Coverage.start(42)
}.should raise_error(TypeError, "no implicit conversion of Integer into Hash")
end
it "does not accept both lines: and oneshot_lines: keyword arguments" do
-> {
Coverage.start(lines: true, oneshot_lines: true)
}.should raise_error(RuntimeError, "cannot enable lines and oneshot_lines simultaneously")
end
it "enables the coverage measurement if passed options with `false` value" do
Coverage.start(lines: false, branches: false, methods: false, eval: false, oneshot_lines: false)
Coverage.should.running?
end
it "measures coverage within eval" do
Coverage.start(lines: true, eval: true)
eval("Object.new\n"*3, binding, "test.rb", 1)
Coverage.result["test.rb"].should == {lines: [1, 1, 1]}
end
end
end
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