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require "minitest/autorun"
# Largely borrowed from selecta
describe "score" do
def score(candidate, query)
# FIXME: should escape this properly
ret = `./testscore '#{query}' '#{candidate}'`
ret.to_f unless ret.empty?
end
def assert_unmatched(candidate, query)
assert_equal nil, score(candidate, query)
end
def assert_matched(candidate, query)
assert_operator 0, :<=, score(candidate, query)
end
it "scores 1 when the query is empty" do
assert_equal 1, score("a", "")
end
it "scores 0 when the choice is empty" do
assert_unmatched "", "a"
end
it "scores 1 when exact match" do
assert_equal 1, score("a", "a")
end
it "scores 0 when the query is longer than the choice" do
assert_unmatched "short", "longer"
end
it "scores 0 when the query doesn't match at all" do
assert_unmatched "a", "b"
end
it "scores 0 when only a prefix of the query matches" do
assert_unmatched "ab", "ac"
end
it "scores greater than 0 when it matches" do
assert_matched "a", "a"
assert_matched "ab", "a"
assert_matched "ba", "a"
assert_matched "bab", "a"
assert_matched "bababababab", "aaaaa"
end
it "prefers start of words" do
assert_operator score("app/models/foo", "amo"), :<, score("app/models/order", "amo")
end
end
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