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require 'spec_helper'
module OccurrenceRangeSpec
class Foo < Treetop::Runtime::SyntaxNode
end
describe "zero to two of a terminal symbol followed by a node class declaration and a block" do
testing_expression '"foo"..2 <OccurrenceRangeSpec::Foo> { def a_method; end }'
it "successfully parses epsilon, reporting a failure" do
parse('') do |result|
result.should_not be_nil
result.should be_an_instance_of(Foo)
result.should respond_to(:a_method)
terminal_failures = parser.terminal_failures
terminal_failures.size.should == 0
end
end
it "successfully parses epsilon, returning an instance declared node class and recording a terminal failure" do
parse('') do |result|
result.should_not be_nil
result.should be_an_instance_of(Foo)
result.should respond_to(:a_method)
terminal_failures = parser.terminal_failures
terminal_failures.size.should == 0
end
end
it "successfully parses one of that terminal, returning an instance of the declared node class and recording a terminal failure" do
parse("foo") do |result|
result.should_not be_nil
result.should be_an_instance_of(Foo)
result.should respond_to(:a_method)
terminal_failures = parser.terminal_failures
terminal_failures.size.should == 0
end
end
it "successfully parses two of that terminal, returning an instance of the declared node class and reporting no failure" do
parse("foofoo") do |result|
result.should_not be_nil
result.should be_an_instance_of(Foo)
result.should respond_to(:a_method)
terminal_failures = parser.terminal_failures
terminal_failures.size.should == 0
end
end
it "fails to parses two of that terminal but fails because of an extra one" do
parse("foofoofoo") do |result|
result.should be_nil
parser.terminal_failures.size.should == 1
end
end
it "parses two of three of that terminal, reporting no failure" do
parse("foofoofoo", :consume_all_input => false) do |result|
result.should_not be_nil
result.elements.size.should == 2
parser.terminal_failures.size.should == 0
end
end
end
describe "two to four of a terminal symbol followed by a node class declaration and a block" do
testing_expression '"foo" 2..4 <OccurrenceRangeSpec::Foo> { def a_method; end }'
it "fails to parse epsilon, reporting a failure" do
parse('') do |result|
result.should be_nil
terminal_failures = parser.terminal_failures
terminal_failures.size.should == 1
failure = terminal_failures.first
failure.index.should == 0
failure.expected_string.should == '"foo"'
end
end
it "fails to parse one of that terminal, returning an instance of the declared node class and recording a terminal failure" do
parse("foo") do |result|
result.should be_nil
terminal_failures = parser.terminal_failures
terminal_failures.size.should == 1
failure = terminal_failures.first
failure.index.should == 3
failure.expected_string.should == '"foo"'
end
end
it "successfully parses two of that terminal, returning an instance of the declared node class and reporting no failure" do
parse("foofoo") do |result|
result.should_not be_nil
result.should be_an_instance_of(Foo)
result.should respond_to(:a_method)
terminal_failures = parser.terminal_failures
terminal_failures.size.should == 0
end
end
it "successfully parses four of that terminal, returning an instance of the declared node class and reporting no failure" do
parse("foofoofoofoo") do |result|
result.should_not be_nil
result.should be_an_instance_of(Foo)
result.should respond_to(:a_method)
terminal_failures = parser.terminal_failures
terminal_failures.size.should == 0
end
end
it "fails to parses four of that terminal because there's an extra unconsumed one" do
parse("foofoofoofoofoo") do |result|
result.should be_nil
terminal_failures = parser.terminal_failures
terminal_failures.size.should == 1
end
end
end
describe "two to any number of a terminal symbol followed by a node class declaration and a block" do
testing_expression '"foo" 2.. <OccurrenceRangeSpec::Foo> { def a_method; end }'
it "fails to parse epsilon, reporting a failure" do
parse('') do |result|
result.should be_nil
terminal_failures = parser.terminal_failures
terminal_failures.size.should == 1
failure = terminal_failures.first
failure.index.should == 0
failure.expected_string.should == '"foo"'
end
end
it "fails to parse one of that terminal, returning an instance of the declared node class and recording a terminal failure" do
parse("foo") do |result|
result.should be_nil
terminal_failures = parser.terminal_failures
terminal_failures.size.should == 1
failure = terminal_failures.first
failure.index.should == 3
failure.expected_string.should == '"foo"'
end
end
it "successfully parses two of that terminal, returning an instance of the declared node class and reporting no failure" do
parse("foofoo") do |result|
result.should_not be_nil
result.should be_an_instance_of(Foo)
result.should respond_to(:a_method)
terminal_failures = parser.terminal_failures
terminal_failures.size.should == 1
failure = terminal_failures.first
failure.index.should == 6
failure.expected_string.should == '"foo"'
end
end
it "successfully parses four of that terminal, returning an instance of the declared node class and reporting a failure on the fifth" do
parse("foofoofoofoo") do |result|
result.should_not be_nil
result.should be_an_instance_of(Foo)
result.should respond_to(:a_method)
terminal_failures = parser.terminal_failures
terminal_failures.size.should == 1
failure = terminal_failures.first
failure.index.should == 12
failure.expected_string.should == '"foo"'
end
end
end
end
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