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|
# frozen_string_literal: true
RSpec.describe RuboCop::AST::CaseMatchNode do
let(:case_match_node) { parse_source(source).ast }
context 'when using Ruby 2.7 or newer', :ruby27 do
describe '.new' do
let(:source) do
<<~RUBY
case expr
in pattern
end
RUBY
end
it { expect(case_match_node.is_a?(described_class)).to be(true) }
end
describe '#keyword' do
let(:source) do
<<~RUBY
case expr
in pattern
end
RUBY
end
it { expect(case_match_node.keyword).to eq('case') }
end
describe '#in_pattern_branches' do
let(:source) do
<<~RUBY
case expr
in pattern
in pattern
in pattern
end
RUBY
end
it { expect(case_match_node.in_pattern_branches.size).to eq(3) }
it {
expect(case_match_node.in_pattern_branches).to all(be_in_pattern_type)
}
end
describe '#each_in_pattern' do
let(:source) do
<<~RUBY
case expr
in pattern
in pattern
in pattern
end
RUBY
end
context 'when not passed a block' do
it {
expect(case_match_node.each_in_pattern.is_a?(Enumerator)).to be(true)
}
end
context 'when passed a block' do
it 'yields all the conditions' do
expect { |b| case_match_node.each_in_pattern(&b) }
.to yield_successive_args(*case_match_node.in_pattern_branches)
end
end
end
describe '#else?' do
context 'without an else statement' do
let(:source) do
<<~RUBY
case expr
in pattern
end
RUBY
end
it { expect(case_match_node.else?).to be(false) }
end
context 'with an else statement' do
let(:source) do
<<~RUBY
case expr
in pattern
else
end
RUBY
end
it { expect(case_match_node.else?).to be(true) }
end
end
describe '#else_branch' do
describe '#else?' do
context 'without an else statement' do
let(:source) do
<<~RUBY
case expr
in pattern
end
RUBY
end
it { expect(case_match_node.else_branch.nil?).to be(true) }
end
context 'with an else statement' do
let(:source) do
<<~RUBY
case expr
in pattern
else
:foo
end
RUBY
end
it { expect(case_match_node.else_branch.sym_type?).to be(true) }
end
end
end
end
end
|
