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pry--pry/spec/pager_spec.rb

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describe "Pry::Pager" do
describe "PageTracker" do
before do
@pt = Pry::Pager::PageTracker.new(10, 10)
end
def record_short_line
@pt.record "012345678\n"
end
def record_long_line
@pt.record "0123456789012\n"
end
def record_multiline
@pt.record "0123456789012\n01\n"
end
def record_string_without_newline
@pt.record "0123456789"
end
def record_string_with_color_codes
@pt.record(CodeRay.scan("0123456789", :ruby).term + "\n")
end
it "records short lines that don't add up to a page" do
9.times { record_short_line }
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expect(@pt.page?).to equal false
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end
it "records short lines that do add up to a page" do
10.times { record_short_line }
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expect(@pt.page?).to equal true
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end
it "treats a long line as taking up more than one row" do
4.times { record_long_line }
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expect(@pt.page?).to equal false
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record_long_line
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expect(@pt.page?).to equal true
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end
it "records a string with an embedded newline" do
3.times { record_multiline }
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expect(@pt.page?).to equal false
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record_short_line
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expect(@pt.page?).to equal true
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end
it "doesn't count a line until it ends" do
12.times { record_string_without_newline }
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expect(@pt.page?).to equal false
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record_short_line
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expect(@pt.page?).to equal true
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end
it "doesn't count ansi color codes towards length" do
9.times { record_string_with_color_codes }
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expect(@pt.page?).to equal false
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record_string_with_color_codes
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expect(@pt.page?).to equal true
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end
end
end