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module RSpec
module Matchers
RSpec.describe EnglishPhrasing do
describe ".split_words" do
it "replaces underscores with spaces" do
expect(
described_class.split_words(:banana_creme_pie)
).to eq("banana creme pie")
end
it "first casts its argument to string" do
arg = double(:to_s => "banana")
expect(described_class.split_words(arg)).to eq("banana")
end
end
describe ".list" do
context "given nil" do
it "returns value from inspect, and a leading space" do
expect(described_class.list(nil)).to eq(" nil")
end
end
context "given a Struct" do
it "returns value from inspect, and a leading space" do
banana = Struct.new("Banana", :flavor).new
expect(
described_class.list(banana)
).to eq(" #{banana.inspect}")
end
end
context "given a Hash" do
it "returns value from inspect, and a leading space" do
banana = { :flavor => 'Banana' }
expect(
described_class.list(banana)
).to eq(" #{banana.inspect}")
end
end
context "given an Enumerable other than a Hash" do
before do
allow(RSpec::Support::ObjectFormatter).to(
receive(:format).and_return("Banana")
)
end
context "with zero items" do
it "returns the empty string" do
expect(described_class.list([])).to eq("")
end
end
context "with one item" do
let(:list) { [double] }
it "returns description, and a leading space" do
expect(described_class.list(list)).to eq(" Banana")
expect(RSpec::Support::ObjectFormatter).to(
have_received(:format).once
)
end
end
context "with two items" do
let(:list) { [double, double] }
it "returns descriptions, and a leading space" do
expect(described_class.list(list)).to eq(" Banana and Banana")
expect(RSpec::Support::ObjectFormatter).to(
have_received(:format).twice
)
end
end
context "with three items" do
let(:list) { [double, double, double] }
it "returns descriptions, and a leading space" do
expect(
described_class.list(list)
).to eq(" Banana, Banana, and Banana")
expect(RSpec::Support::ObjectFormatter).to(
have_received(:format).exactly(3).times
)
end
end
end
end
end
end
end
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