summaryrefslogtreecommitdiff
path: root/spec/rubocop/cop/migration/remove_column_spec.rb
blob: 4768093b10d17f50cd358ae853ffe61b57254130 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
# frozen_string_literal: true

require 'fast_spec_helper'
require 'rubocop'
require_relative '../../../../rubocop/cop/migration/remove_column'

RSpec.describe RuboCop::Cop::Migration::RemoveColumn do
  include CopHelper

  subject(:cop) { described_class.new }

  def source(meth = 'change')
    "def #{meth}; remove_column :table, :column; end"
  end

  context 'in a regular migration' do
    before do
      allow(cop).to receive(:in_migration?).and_return(true)
      allow(cop).to receive(:in_post_deployment_migration?).and_return(false)
    end

    it 'registers an offense when remove_column is used in the change method' do
      inspect_source(source('change'))

      aggregate_failures do
        expect(cop.offenses.size).to eq(1)
        expect(cop.offenses.map(&:line)).to eq([1])
      end
    end

    it 'registers an offense when remove_column is used in the up method' do
      inspect_source(source('up'))

      aggregate_failures do
        expect(cop.offenses.size).to eq(1)
        expect(cop.offenses.map(&:line)).to eq([1])
      end
    end

    it 'registers no offense when remove_column is used in the down method' do
      inspect_source(source('down'))

      expect(cop.offenses.size).to eq(0)
    end
  end

  context 'in a post-deployment migration' do
    before do
      allow(cop).to receive(:in_migration?).and_return(true)
      allow(cop).to receive(:in_post_deployment_migration?).and_return(true)
    end

    it 'registers no offense' do
      inspect_source(source)

      expect(cop.offenses.size).to eq(0)
    end
  end

  context 'outside of a migration' do
    it 'registers no offense' do
      inspect_source(source)

      expect(cop.offenses.size).to eq(0)
    end
  end
end