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427d54b2b0
Zeitwerk simplifies working with dependencies in dev and makes it easier reloading class chains. We no longer need to use Rails "require_dependency" anywhere and instead can just use standard Ruby patterns to require files. This is a far reaching change and we expect some followups here.
41 lines
1.1 KiB
Ruby
41 lines
1.1 KiB
Ruby
# frozen_string_literal: true
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require 'rails_helper'
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describe TimelineLookup do
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it "returns an empty array for empty input" do
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expect(TimelineLookup.build([])).to eq([])
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end
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it "returns an empty array for if input is an array if post ids" do
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expect(TimelineLookup.build([1, 2, 3])).to eq([])
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end
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it "returns the lookup for a series of posts" do
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result = TimelineLookup.build([[111, 10], [222, 9], [333, 8]])
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expect(result).to eq([[1, 10], [2, 9], [3, 8]])
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end
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it "omits duplicate dates" do
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result = TimelineLookup.build([[111, 10], [222, 10], [333, 8]])
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expect(result).to eq([[1, 10], [3, 8]])
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end
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it "respects a `max_values` setting" do
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input = (1..100).map { |i| [1000 + i, 100 - i] }
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result = TimelineLookup.build(input, 5)
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expect(result.size).to eq(5)
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expect(result).to eq([[1, 99], [21, 79], [41, 59], [61, 39], [81, 19]])
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end
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it "respects an uneven `max_values` setting" do
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input = (1..100).map { |i| [1000 + i, 100 - i] }
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result = TimelineLookup.build(input, 3)
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expect(result.size).to eq(3)
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expect(result).to eq([[1, 99], [35, 65], [69, 31]])
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end
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end
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