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Contents
require 'stringio'
# Custom matchers for the tab completion test suite.
#
# Require :subject and :output_buffer to be defined/accessible.
#
# The matchers are simplistic (but still adequate); the (most) appropriate choice would be
# [diffable matchers](https://relishapp.com/rspec/rspec-expectations/v/3-6/docs/custom-matchers/define-diffable-matcher)
#
# Note that the semantic of the expected value is different from the standard rspec one, since we
# process it, therefore, we need to use intermediate instance variables.
#
module TabCompletionCustomRSpecMatchers
extend RSpec::Matchers::DSL
# Doesn't matter in this context.
#
PHONY_EXECUTABLE = '/path/to/executable'
matcher :complete_with do |expected_entries|
match do |symbolic_commandline_options|
commandline = "#{PHONY_EXECUTABLE} #{symbolic_commandline_options}"
cursor_position = commandline.index("<tab>")
commandline = commandline.sub("<tab>", "")
subject.complete(execution_target, commandline, cursor_position)
@actual_output = output_buffer.string
expected_output = expected_entries.join("\n")
expect(@actual_output).to eql(expected_output)
end
failure_message do |actual|
actual_entries = @actual_output.split("\n")
"#{actual} listed #{actual_entries} instead of #{expected}"
end
end
matcher :not_complete do
match do |symbolic_commandline_options|
expect(symbolic_commandline_options).to complete_with([])
end
failure_message do |actual|
@actual_output = output_buffer.string
actual_entries = @actual_output.split("\n")
"#{actual} listed #{actual_entries} instead of no entries"
end
end
end # TabCompletionCustomRSpecMatchers
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