shard-ameba/spec/ameba/rule/style/verbose_block_spec.cr
2023-06-29 08:15:39 +02:00

278 lines
10 KiB
Crystal

require "../../../spec_helper"
module Ameba::Rule::Style
subject = VerboseBlock.new
describe VerboseBlock do
it "passes if there is no potential performance improvements" do
expect_no_issues subject, <<-CRYSTAL
(1..3).any?(&.odd?)
(1..3).join('.', &.to_s)
(1..3).each_with_index { |i, idx| i * idx }
(1..3).map { |i| typeof(i) }
(1..3).map { |i| i || 0 }
(1..3).map { |i| :foo }
(1..3).map { |i| :foo.to_s.split.join('.') }
(1..3).map { :foo }
CRYSTAL
end
it "passes if the block argument is used within the body" do
expect_no_issues subject, <<-CRYSTAL
(1..3).map { |i| i * i }
(1..3).map { |j| j * j.to_i64 }
(1..3).map { |k| k.to_i64 * k }
(1..3).map { |l| l.to_i64 * l.to_i64 }
(1..3).map { |m| m.to_s[start: m.to_i64, count: 3]? }
(1..3).map { |n| n.to_s.split.map { |z| n.to_i * z.to_i }.join }
(1..3).map { |o| o.foo = foos[o.abs]? || 0 }
CRYSTAL
end
it "reports if there is a call with a collapsible block" do
source = expect_issue subject, <<-CRYSTAL
(1..3).any? { |i| i.odd? }
# ^^^^^^^^^^^^^^^^^^^ error: Use short block notation instead: `any?(&.odd?)`
CRYSTAL
expect_correction source, <<-CRYSTAL
(1..3).any?(&.odd?)
CRYSTAL
end
it "reports if there is a call with an argument + collapsible block" do
source = expect_issue subject, <<-CRYSTAL
(1..3).join('.') { |i| i.to_s }
# ^^^^^^^^^^^^^^^^^^^^^^^^ error: Use short block notation instead: `join('.', &.to_s)`
CRYSTAL
expect_correction source, <<-CRYSTAL
(1..3).join('.', &.to_s)
CRYSTAL
end
it "reports if there is a call with a collapsible block (with chained call)" do
source = expect_issue subject, <<-CRYSTAL
(1..3).map { |i| i.to_s.split.reverse.join.strip }
# ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: Use short block notation instead: `map(&.to_s.split.reverse.join.strip)`
CRYSTAL
expect_correction source, <<-CRYSTAL
(1..3).map(&.to_s.split.reverse.join.strip)
CRYSTAL
end
context "properties" do
it "#exclude_calls_with_block" do
rule = VerboseBlock.new
rule.exclude_calls_with_block = true
expect_no_issues rule, <<-CRYSTAL
(1..3).in_groups_of(1) { |i| i.map(&.to_s) }
CRYSTAL
rule.exclude_calls_with_block = false
source = expect_issue rule, <<-CRYSTAL
(1..3).in_groups_of(1) { |i| i.map(&.to_s) }
# ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: Use short block notation instead: `in_groups_of(1, &.map(&.to_s))`
CRYSTAL
expect_correction source, <<-CRYSTAL
(1..3).in_groups_of(1, &.map(&.to_s))
CRYSTAL
end
it "#exclude_multiple_line_blocks" do
rule = VerboseBlock.new
rule.exclude_multiple_line_blocks = true
expect_no_issues rule, <<-CRYSTAL
(1..3).any? do |i|
i.odd?
end
CRYSTAL
rule.exclude_multiple_line_blocks = false
source = expect_issue rule, <<-CRYSTAL
(1..3).any? do |i|
# ^^^^^^^^^^^ error: Use short block notation instead: `any?(&.odd?)`
i.odd?
end
CRYSTAL
expect_correction source, <<-CRYSTAL
(1..3).any?(&.odd?)
CRYSTAL
end
it "#exclude_prefix_operators" do
rule = VerboseBlock.new
rule.exclude_prefix_operators = true
expect_no_issues rule, <<-CRYSTAL
(1..3).sum { |i| +i }
(1..3).sum { |i| -i }
(1..3).sum { |i| ~i }
CRYSTAL
rule.exclude_prefix_operators = false
rule.exclude_operators = false
source = expect_issue rule, <<-CRYSTAL
(1..3).sum { |i| +i }
# ^^^^^^^^^^^^^^ error: Use short block notation instead: `sum(&.+)`
(1..3).sum { |i| -i }
# ^^^^^^^^^^^^^^ error: Use short block notation instead: `sum(&.-)`
(1..3).sum { |i| ~i }
# ^^^^^^^^^^^^^^ error: Use short block notation instead: `sum(&.~)`
CRYSTAL
expect_correction source, <<-CRYSTAL
(1..3).sum(&.+)
(1..3).sum(&.-)
(1..3).sum(&.~)
CRYSTAL
end
it "#exclude_operators" do
rule = VerboseBlock.new
rule.exclude_operators = true
expect_no_issues rule, <<-CRYSTAL
(1..3).sum { |i| i * 2 }
CRYSTAL
rule.exclude_operators = false
source = expect_issue rule, <<-CRYSTAL
(1..3).sum { |i| i * 2 }
# ^^^^^^^^^^^^^^^^^ error: Use short block notation instead: `sum(&.*(2))`
CRYSTAL
expect_correction source, <<-CRYSTAL
(1..3).sum(&.*(2))
CRYSTAL
end
it "#exclude_setters" do
rule = VerboseBlock.new
rule.exclude_setters = true
expect_no_issues rule, <<-CRYSTAL
Char::Reader.new("abc").tap { |reader| reader.pos = 0 }
CRYSTAL
rule.exclude_setters = false
source = expect_issue rule, <<-CRYSTAL
Char::Reader.new("abc").tap { |reader| reader.pos = 0 }
# ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: Use short block notation instead: `tap(&.pos=(0))`
CRYSTAL
expect_correction source, <<-CRYSTAL
Char::Reader.new("abc").tap(&.pos=(0))
CRYSTAL
end
it "#max_line_length" do
rule = VerboseBlock.new
rule.exclude_multiple_line_blocks = false
rule.max_line_length = 60
expect_no_issues rule, <<-CRYSTAL
(1..3).tap &.tap &.tap &.tap &.tap &.tap &.tap do |i|
i.to_s.reverse.strip.blank?
end
CRYSTAL
rule.max_line_length = nil
source = expect_issue rule, <<-CRYSTAL
(1..3).tap &.tap &.tap &.tap &.tap &.tap &.tap do |i|
# ^^^^^^^^^^ error: Use short block notation instead: `tap(&.to_s.reverse.strip.blank?)`
i.to_s.reverse.strip.blank?
end
CRYSTAL
expect_correction source, <<-CRYSTAL
(1..3).tap &.tap &.tap &.tap &.tap &.tap &.tap(&.to_s.reverse.strip.blank?)
CRYSTAL
end
it "#max_length" do
rule = VerboseBlock.new
rule.max_length = 30
expect_no_issues rule, <<-CRYSTAL
(1..3).tap { |i| i.to_s.split.reverse.join.strip.blank? }
CRYSTAL
rule.max_length = nil
source = expect_issue rule, <<-CRYSTAL
(1..3).tap { |i| i.to_s.split.reverse.join.strip.blank? }
# ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: [...] `tap(&.to_s.split.reverse.join.strip.blank?)`
CRYSTAL
expect_correction source, <<-CRYSTAL
(1..3).tap(&.to_s.split.reverse.join.strip.blank?)
CRYSTAL
end
end
context "macro" do
it "reports in macro scope" do
source = expect_issue subject, <<-CRYSTAL
{{ (1..3).any? { |i| i.odd? } }}
# ^^^^^^^^^^^^^^^^^^^ error: Use short block notation instead: `any?(&.odd?)`
CRYSTAL
expect_correction source, <<-CRYSTAL
{{ (1..3).any?(&.odd?) }}
CRYSTAL
end
end
it "reports call args and named_args" do
rule = VerboseBlock.new
rule.exclude_operators = false
source = expect_issue rule, <<-CRYSTAL
(1..3).map { |i| i.to_s[start: 0.to_i64, count: 3]? }
# ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: [...] `map(&.to_s.[start: 0.to_i64, count: 3]?)`
(1..3).map { |i| i.to_s[0.to_i64, count: 3]? }
# ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: [...] `map(&.to_s.[0.to_i64, count: 3]?)`
(1..3).map { |i| i.to_s[0.to_i64, 3]? }
# ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: [...] `map(&.to_s.[0.to_i64, 3]?)`
(1..3).map { |i| i.to_s[start: 0.to_i64, count: 3] = "foo" }
# ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: [...] `map(&.to_s.[start: 0.to_i64, count: 3]=("foo"))`
(1..3).map { |i| i.to_s[0.to_i64, count: 3] = "foo" }
# ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: [...] `map(&.to_s.[0.to_i64, count: 3]=("foo"))`
(1..3).map { |i| i.to_s[0.to_i64, 3] = "foo" }
# ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: [...] `map(&.to_s.[0.to_i64, 3]=("foo"))`
(1..3).map { |i| i.to_s.camelcase(lower: true) }
# ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: [...] `map(&.to_s.camelcase(lower: true))`
(1..3).map { |i| i.to_s.camelcase }
# ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: [...] `map(&.to_s.camelcase)`
(1..3).map { |i| i.to_s.gsub('_', '-') }
# ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: [...] `map(&.to_s.gsub('_', '-'))`
(1..3).map { |i| i.in?(*{1, 2, 3}, **{foo: :bar}) }
# ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: [...] `map(&.in?(*{1, 2, 3}, **{foo: :bar}))`
(1..3).map { |i| i.in?(1, *foo, 3, **bar) }
# ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: [...] `map(&.in?(1, *foo, 3, **bar))`
(1..3).join(separator: '.') { |i| i.to_s }
# ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: [...] `join(separator: '.', &.to_s)`
CRYSTAL
expect_correction source, <<-CRYSTAL
(1..3).map(&.to_s.[start: 0.to_i64, count: 3]?)
(1..3).map(&.to_s.[0.to_i64, count: 3]?)
(1..3).map(&.to_s.[0.to_i64, 3]?)
(1..3).map(&.to_s.[start: 0.to_i64, count: 3]=("foo"))
(1..3).map(&.to_s.[0.to_i64, count: 3]=("foo"))
(1..3).map(&.to_s.[0.to_i64, 3]=("foo"))
(1..3).map(&.to_s.camelcase(lower: true))
(1..3).map(&.to_s.camelcase)
(1..3).map(&.to_s.gsub('_', '-'))
(1..3).map(&.in?(*{1, 2, 3}, **{foo: :bar}))
(1..3).map(&.in?(1, *foo, 3, **bar))
(1..3).join(separator: '.', &.to_s)
CRYSTAL
end
end
end