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# frozen_string_literal: true
RSpec.describe TTY::Command::Truncator do
it "writes nil content" do
truncator = described_class.new(max_size: 2)
truncator.write(nil)
expect(truncator.read).to eq("")
end
it "writes content within maximum size" do
truncator = described_class.new(max_size: 2)
truncator.write("a")
expect(truncator.read).to eq("a")
end
it "writes both prefix and suffix" do
truncator = described_class.new(max_size: 2)
truncator.write("abc")
truncator.write("d")
expect(truncator.read).to eq("abcd")
end
it "writes more bytes letter" do
truncator = described_class.new(max_size: 1000)
multibytes_string = "’test’"
truncator.write(multibytes_string)
expect(truncator.read).to eq(multibytes_string)
end
it "overflows prefix and suffix " do
truncator = described_class.new(max_size: 2)
truncator.write("abc")
truncator.write("d")
truncator.write("e")
expect(truncator.read).to eq("ab\n... omitting 1 bytes ...\nde")
end
it "omits bytes " do
truncator = described_class.new(max_size: 2)
truncator.write("abc___________________yz")
expect(truncator.read).to eq("ab\n... omitting 20 bytes ...\nyz")
end
it "reflows suffix with less content" do
truncator = described_class.new(max_size: 2)
truncator.write("abc____________________y")
truncator.write("z")
expect(truncator.read).to eq("ab\n... omitting 21 bytes ...\nyz")
end
it "reflows suffix with more content" do
truncator = described_class.new(max_size: 2)
truncator.write("abc____________________y")
truncator.write("zwx")
expect(truncator.read).to eq("ab\n... omitting 23 bytes ...\nwx")
end
end
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