Add spec for nil matcher

This commit is contained in:
Michael Miller 2019-01-26 16:41:21 -07:00
parent 5c68e7eb52
commit 3bfaa07d4f

View file

@ -0,0 +1,55 @@
require "../spec_helper"
describe Spectator::Matchers::NilMatcher do
describe "#match?" do
context "with nil" do
it "is true" do
value = nil.as(Bool?)
partial = Spectator::Expectations::ValueExpectationPartial.new(value)
matcher = Spectator::Matchers::NilMatcher.new
matcher.match?(partial).should be_true
end
end
context "with not nil" do
it "is false" do
value = true.as(Bool?)
partial = Spectator::Expectations::ValueExpectationPartial.new(value)
matcher = Spectator::Matchers::NilMatcher.new
matcher.match?(partial).should be_false
end
end
end
describe "#message" do
it "mentions nil" do
partial = Spectator::Expectations::ValueExpectationPartial.new(42)
matcher = Spectator::Matchers::NilMatcher.new
matcher.message(partial).should contain("nil")
end
it "contains the actual label" do
value = 42
label = "everything"
partial = Spectator::Expectations::ValueExpectationPartial.new(label, value)
matcher = Spectator::Matchers::NilMatcher.new
matcher.message(partial).should contain(label)
end
end
describe "#negated_message" do
it "mentions nil" do
partial = Spectator::Expectations::ValueExpectationPartial.new(42)
matcher = Spectator::Matchers::NilMatcher.new
matcher.negated_message(partial).should contain("nil")
end
it "contains the actual label" do
value = 42
label = "everything"
partial = Spectator::Expectations::ValueExpectationPartial.new(label, value)
matcher = Spectator::Matchers::NilMatcher.new
matcher.negated_message(partial).should contain(label)
end
end
end