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# frozen_string_literal: true
RSpec.describe TTY::Prompt::Question::Modifier, "#whitespace" do
context "string with whitespaces" do
let(:string) { " text\t \n to\t modify\r\n" }
it "trims whitespace" do
modified = described_class.whitespace(:trim, string)
expect(modified).to eq("text\t \n to\t modify")
end
it "chomps whitespace" do
modified = described_class.whitespace(:chomp, string)
expect(modified).to eq(" text\t \n to\t modify")
end
it "collapses text" do
modified = described_class.whitespace(:collapse, string)
expect(modified).to eq(" text to modify ")
end
it "removes whitespace" do
modified = described_class.whitespace(:remove, string)
expect(modified).to eq("texttomodify")
end
end
context "nil (empty user input)" do
let(:string) { nil }
example "trim returns nil" do
modified = described_class.whitespace(:trim, string)
expect(modified).to be_nil
end
example "chomp returns nil" do
modified = described_class.whitespace(:chomp, string)
expect(modified).to be_nil
end
example "collapse returns nil" do
modified = described_class.whitespace(:collapse, string)
expect(modified).to be_nil
end
example "remove returns nil" do
modified = described_class.whitespace(:remove, string)
expect(modified).to be_nil
end
end
end
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