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require 'spec_helper'
describe VCR::Cassette::ERBRenderer do
describe '#render' do
def render(*args)
described_class.new(*args).render
end
let(:no_vars_content) { '<%= 3 + 4 %>. Some ERB' }
let(:vars_content) { '<%= var1 %>. ERB with Vars! <%= var2 %>' }
context 'when ERB is disabled' do
it 'returns the given template' do
expect(render(no_vars_content, false)).to eq(no_vars_content)
expect(render(no_vars_content, nil)).to eq(no_vars_content)
end
end
context 'when ERB is enabled but no variables are passed' do
it 'renders the file content as ERB' do
expect(render(no_vars_content, true)).to eq("7. Some ERB")
end
it 'raises an appropriate error when the ERB template needs variables' do
expect {
render(vars_content, true, "vars")
}.to raise_error(VCR::Errors::MissingERBVariableError,
%{The ERB in the vars cassette file references undefined variable var1. } +
%{Pass it to the cassette using :erb => #{ {:var1=>"some value"}.inspect }.}
)
end
it 'gracefully handles the template being nil' do
expect(render(nil, true)).to be_nil
end
end
context 'when ERB is enabled and variables are passed' do
it 'renders the file content as ERB with the passed variables' do
expect(render(vars_content, :var1 => 'foo', :var2 => 'bar')).to eq('foo. ERB with Vars! bar')
end
it 'raises an appropriate error when one or more of the needed variables are not passed' do
expect {
render(vars_content, { :var1 => 'foo' }, "vars")
}.to raise_error(VCR::Errors::MissingERBVariableError,
%{The ERB in the vars cassette file references undefined variable var2. } +
%{Pass it to the cassette using :erb => #{ {:var1 => "foo", :var2 => "some value"}.inspect }.}
)
end
end
end
end
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