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rails--rails/actionpack/test/journey/nfa/simulator_test.rb

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require 'abstract_unit'
module ActionDispatch
module Journey
module NFA
class TestSimulator < ActiveSupport::TestCase
def test_simulate_simple
sim = simulator_for ['/foo']
assert_match sim, '/foo'
end
def test_simulate_simple_no_match
sim = simulator_for ['/foo']
assert_no_match sim, 'foo'
end
def test_simulate_simple_no_match_too_long
sim = simulator_for ['/foo']
assert_no_match sim, '/foo/bar'
end
def test_simulate_simple_no_match_wrong_string
sim = simulator_for ['/foo']
assert_no_match sim, '/bar'
end
def test_simulate_regex
sim = simulator_for ['/:foo/bar']
assert_match sim, '/bar/bar'
assert_match sim, '/foo/bar'
end
def test_simulate_or
sim = simulator_for ['/foo', '/bar']
assert_match sim, '/bar'
assert_match sim, '/foo'
assert_no_match sim, '/baz'
end
def test_simulate_optional
sim = simulator_for ['/foo(/bar)']
assert_match sim, '/foo'
assert_match sim, '/foo/bar'
assert_no_match sim, '/foo/'
end
def test_matchdata_has_memos
paths = %w{ /foo /bar }
parser = Journey::Parser.new
asts = paths.map { |x|
ast = parser.parse x
ast.each { |n| n.memo = ast}
ast
}
expected = asts.first
builder = Builder.new Nodes::Or.new asts
sim = Simulator.new builder.transition_table
md = sim.match '/foo'
assert_equal [expected], md.memos
end
def test_matchdata_memos_on_merge
parser = Journey::Parser.new
routes = [
'/articles(.:format)',
'/articles/new(.:format)',
'/articles/:id/edit(.:format)',
'/articles/:id(.:format)',
].map { |path|
ast = parser.parse path
ast.each { |n| n.memo = ast }
ast
}
asts = routes.dup
ast = Nodes::Or.new routes
nfa = Journey::NFA::Builder.new ast
sim = Simulator.new nfa.transition_table
md = sim.match '/articles'
assert_equal [asts.first], md.memos
end
def simulator_for paths
parser = Journey::Parser.new
asts = paths.map { |x| parser.parse x }
builder = Builder.new Nodes::Or.new asts
Simulator.new builder.transition_table
end
end
end
end
end