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renehernandez/data_structures_101

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Similar blocks of code found in 2 locations. Consider refactoring.
Open

      report = do_report do |bench|
        bench.report('ChainedHashTable#delete') do
          sample.each { |i| @chained_hash.delete(i) }
        end
Severity: Minor
Found in perf/hash/hash_methods.rb and 1 other location - About 20 mins to fix
perf/hash/hash_methods.rb on lines 19..25

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 27.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Similar blocks of code found in 3 locations. Consider refactoring.
Open

  context '#each' do
    it 'returns enum if no block given' do
      expect(hash_table.each).to be_a(Enumerator)
    end
Severity: Minor
Found in spec/probe_hash_spec.rb and 2 other locations - About 20 mins to fix
spec/bucket_spec.rb on lines 90..96
spec/chained_hash_spec.rb on lines 92..98

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 27.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Extra empty line detected at class body beginning.
Open


    attr_reader :min_heap
Severity: Minor
Found in lib/data_structures_101/heap.rb by rubocop

This cops checks if empty lines around the bodies of classes match the configuration.

Example: EnforcedStyle: empty_lines

# good

class Foo

  def bar
    # ...
  end

end

Example: EnforcedStyle: emptylinesexcept_namespace

# good

class Foo
  class Bar

    # ...

  end
end

Example: EnforcedStyle: emptylinesspecial

# good
class Foo

  def bar; end

end

Example: EnforcedStyle: noemptylines (default)

# good

class Foo
  def bar
    # ...
  end
end

Use 2 (not 4) spaces for indentation.
Open

            expect(heap.size).to eql(0)
Severity: Minor
Found in spec/heap_spec.rb by rubocop

This cops checks for indentation that doesn't use the specified number of spaces.

See also the IndentationConsistency cop which is the companion to this one.

Example:

# bad
class A
 def test
  puts 'hello'
 end
end

# good
class A
  def test
    puts 'hello'
  end
end

Example: IgnoredPatterns: ['^\s*module']

# bad
module A
class B
  def test
  puts 'hello'
  end
end
end

# good
module A
class B
  def test
    puts 'hello'
  end
end
end

Use 2 (not 4) spaces for indentation.
Open

            args = 10.times.map { Random.rand(10) }
Severity: Minor
Found in spec/heap_spec.rb by rubocop

This cops checks for indentation that doesn't use the specified number of spaces.

See also the IndentationConsistency cop which is the companion to this one.

Example:

# bad
class A
 def test
  puts 'hello'
 end
end

# good
class A
  def test
    puts 'hello'
  end
end

Example: IgnoredPatterns: ['^\s*module']

# bad
module A
class B
  def test
  puts 'hello'
  end
end
end

# good
module A
class B
  def test
    puts 'hello'
  end
end
end

Trailing whitespace detected.
Open

    context '.new' do
Severity: Minor
Found in spec/heap_spec.rb by rubocop

Use Array.new(10) with a block instead of .times.map.
Open

            args = 10.times.map { Random.rand(10) }
Severity: Minor
Found in spec/heap_spec.rb by rubocop

This cop checks for .times.map calls. In most cases such calls can be replaced with an explicit array creation.

Example:

# bad
9.times.map do |i|
  i.to_s
end

# good
Array.new(9) do |i|
  i.to_s
end

Trailing whitespace detected.
Open
Severity: Minor
Found in spec/bucket_spec.rb by rubocop

Use 2 (not 4) spaces for indentation.
Open

            args = 10.times.map { Random.rand(10) }
Severity: Minor
Found in spec/heap_spec.rb by rubocop

This cops checks for indentation that doesn't use the specified number of spaces.

See also the IndentationConsistency cop which is the companion to this one.

Example:

# bad
class A
 def test
  puts 'hello'
 end
end

# good
class A
  def test
    puts 'hello'
  end
end

Example: IgnoredPatterns: ['^\s*module']

# bad
module A
class B
  def test
  puts 'hello'
  end
end
end

# good
module A
class B
  def test
    puts 'hello'
  end
end
end

Use 2 (not 4) spaces for indentation.
Open

            it 'returns the root of the heap and reorganizes the heap' do
Severity: Minor
Found in spec/heap_spec.rb by rubocop

This cops checks for indentation that doesn't use the specified number of spaces.

See also the IndentationConsistency cop which is the companion to this one.

Example:

# bad
class A
 def test
  puts 'hello'
 end
end

# good
class A
  def test
    puts 'hello'
  end
end

Example: IgnoredPatterns: ['^\s*module']

# bad
module A
class B
  def test
  puts 'hello'
  end
end
end

# good
module A
class B
  def test
    puts 'hello'
  end
end
end

Use 2 (not 4) spaces for indentation.
Open

                    expect(heap[heap.parent(i)]).to be >= heap[i]
Severity: Minor
Found in spec/heap_spec.rb by rubocop

This cops checks for indentation that doesn't use the specified number of spaces.

See also the IndentationConsistency cop which is the companion to this one.

Example:

# bad
class A
 def test
  puts 'hello'
 end
end

# good
class A
  def test
    puts 'hello'
  end
end

Example: IgnoredPatterns: ['^\s*module']

# bad
module A
class B
  def test
  puts 'hello'
  end
end
end

# good
module A
class B
  def test
    puts 'hello'
  end
end
end

Trailing whitespace detected.
Open

        let(:heap) do
Severity: Minor
Found in spec/heap_spec.rb by rubocop

Trailing whitespace detected.
Open

            DataStructures101::Heap.new(*args, min_heap: true)
Severity: Minor
Found in spec/heap_spec.rb by rubocop

Trailing whitespace detected.
Open
Severity: Minor
Found in spec/bucket_spec.rb by rubocop

Trailing whitespace detected.
Open
Severity: Minor
Found in spec/bucket_spec.rb by rubocop

Use 2 (not 4) spaces for indentation.
Open

        let(:heap) do
Severity: Minor
Found in spec/heap_spec.rb by rubocop

This cops checks for indentation that doesn't use the specified number of spaces.

See also the IndentationConsistency cop which is the companion to this one.

Example:

# bad
class A
 def test
  puts 'hello'
 end
end

# good
class A
  def test
    puts 'hello'
  end
end

Example: IgnoredPatterns: ['^\s*module']

# bad
module A
class B
  def test
  puts 'hello'
  end
end
end

# good
module A
class B
  def test
    puts 'hello'
  end
end
end

Use 2 (not 4) spaces for indentation.
Open

            DataStructures101::Heap.new(25, 18, 10, 4, 30, min_heap: true)
Severity: Minor
Found in spec/heap_spec.rb by rubocop

This cops checks for indentation that doesn't use the specified number of spaces.

See also the IndentationConsistency cop which is the companion to this one.

Example:

# bad
class A
 def test
  puts 'hello'
 end
end

# good
class A
  def test
    puts 'hello'
  end
end

Example: IgnoredPatterns: ['^\s*module']

# bad
module A
class B
  def test
  puts 'hello'
  end
end
end

# good
module A
class B
  def test
    puts 'hello'
  end
end
end

Use 2 (not 4) spaces for indentation.
Open

                    expect(heap[heap.parent(i)]).to be <= heap[i]
Severity: Minor
Found in spec/heap_spec.rb by rubocop

This cops checks for indentation that doesn't use the specified number of spaces.

See also the IndentationConsistency cop which is the companion to this one.

Example:

# bad
class A
 def test
  puts 'hello'
 end
end

# good
class A
  def test
    puts 'hello'
  end
end

Example: IgnoredPatterns: ['^\s*module']

# bad
module A
class B
  def test
  puts 'hello'
  end
end
end

# good
module A
class B
  def test
    puts 'hello'
  end
end
end

Final newline missing.
Open

end
Severity: Minor
Found in spec/heap_spec.rb by rubocop

(...) interpreted as grouped expression.
Open

        let (:fixed_heap) do
Severity: Minor
Found in spec/heap_spec.rb by rubocop

Checks for space between the name of a called method and a left parenthesis.

Example:

# bad

puts (x + y)

Example:

# good

puts(x + y)
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