aboutsummaryrefslogtreecommitdiffstats
path: root/activerecord/test/cases/adapter_test.rb
blob: f1023ed7ef9304cd4acf73add7fdf53163b17f7d (plain) (blame)
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
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
require "cases/helper"

class AdapterTest < ActiveRecord::TestCase
  def setup
    @connection = ActiveRecord::Base.connection
  end

  def test_tables
    tables = @connection.tables
    assert tables.include?("accounts")
    assert tables.include?("authors")
    assert tables.include?("tasks")
    assert tables.include?("topics")
  end

  def test_table_exists?
    assert @connection.table_exists?("accounts")
    assert !@connection.table_exists?("nonexistingtable")
  end

  def test_indexes
    idx_name = "accounts_idx"

    if @connection.respond_to?(:indexes)
      indexes = @connection.indexes("accounts")
      assert indexes.empty?

      @connection.add_index :accounts, :firm_id, :name => idx_name
      indexes = @connection.indexes("accounts")
      assert_equal "accounts", indexes.first.table
      # OpenBase does not have the concept of a named index
      # Indexes are merely properties of columns.
      assert_equal idx_name, indexes.first.name unless current_adapter?(:OpenBaseAdapter)
      assert !indexes.first.unique
      assert_equal ["firm_id"], indexes.first.columns
    else
      warn "#{@connection.class} does not respond to #indexes"
    end

  ensure
    @connection.remove_index(:accounts, :name => idx_name) rescue nil
  end

  def test_current_database
    if @connection.respond_to?(:current_database)
      assert_equal ARTest.connection_config['arunit']['database'], @connection.current_database
    end
  end

  if current_adapter?(:MysqlAdapter)
    def test_charset
      assert_not_nil @connection.charset
      assert_not_equal 'character_set_database', @connection.charset
      assert_equal @connection.show_variable('character_set_database'), @connection.charset
    end

    def test_collation
      assert_not_nil @connection.collation
      assert_not_equal 'collation_database', @connection.collation
      assert_equal @connection.show_variable('collation_database'), @connection.collation
    end

    def test_show_nonexistent_variable_returns_nil
      assert_nil @connection.show_variable('foo_bar_baz')
    end

    def test_not_specifying_database_name_for_cross_database_selects
      begin
        assert_nothing_raised do
          ActiveRecord::Base.establish_connection(ActiveRecord::Base.configurations['arunit'].except(:database))

          config = ARTest.connection_config
          ActiveRecord::Base.connection.execute(
            "SELECT #{config['arunit']['database']}.pirates.*, #{config['arunit2']['database']}.courses.* " \
            "FROM #{config['arunit']['database']}.pirates, #{config['arunit2']['database']}.courses"
          )
        end
      ensure
        ActiveRecord::Base.establish_connection 'arunit'
      end
    end
  end

  def test_table_alias
    def @connection.test_table_alias_length() 10; end
    class << @connection
      alias_method :old_table_alias_length, :table_alias_length
      alias_method :table_alias_length,     :test_table_alias_length
    end

    assert_equal 'posts',      @connection.table_alias_for('posts')
    assert_equal 'posts_comm', @connection.table_alias_for('posts_comments')
    assert_equal 'dbo_posts',  @connection.table_alias_for('dbo.posts')

    class << @connection
      remove_method :table_alias_length
      alias_method :table_alias_length, :old_table_alias_length
    end
  end

  # test resetting sequences in odd tables in postgreSQL
  if ActiveRecord::Base.connection.respond_to?(:reset_pk_sequence!)
    require 'models/movie'
    require 'models/subscriber'

    def test_reset_empty_table_with_custom_pk
      Movie.delete_all
      Movie.connection.reset_pk_sequence! 'movies'
      assert_equal 1, Movie.create(:name => 'fight club').id
    end

    if ActiveRecord::Base.connection.adapter_name != "FrontBase"
      def test_reset_table_with_non_integer_pk
        Subscriber.delete_all
        Subscriber.connection.reset_pk_sequence! 'subscribers'
        sub = Subscriber.new(:name => 'robert drake')
        sub.id = 'bob drake'
        assert_nothing_raised { sub.save! }
      end
    end
  end

  def test_uniqueness_violations_are_translated_to_specific_exception
    @connection.execute "INSERT INTO subscribers(nick) VALUES('me')"
    assert_raises(ActiveRecord::RecordNotUnique) do
      @connection.execute "INSERT INTO subscribers(nick) VALUES('me')"
    end
  end

  def test_foreign_key_violations_are_translated_to_specific_exception
    unless @connection.adapter_name == 'SQLite'
      assert_raises(ActiveRecord::InvalidForeignKey) do
        # Oracle adapter uses prefetched primary key values from sequence and passes them to connection adapter insert method
        if @connection.prefetch_primary_key?
          id_value = @connection.next_sequence_value(@connection.default_sequence_name("fk_test_has_fk", "id"))
          @connection.execute "INSERT INTO fk_test_has_fk (id, fk_id) VALUES (#{id_value},0)"
        else
          @connection.execute "INSERT INTO fk_test_has_fk (fk_id) VALUES (0)"
        end
      end
    end
  end

  def test_disable_referential_integrity
    assert_nothing_raised do
      @connection.disable_referential_integrity do
        # Oracle adapter uses prefetched primary key values from sequence and passes them to connection adapter insert method
        if @connection.prefetch_primary_key?
          id_value = @connection.next_sequence_value(@connection.default_sequence_name("fk_test_has_fk", "id"))
          @connection.execute "INSERT INTO fk_test_has_fk (id, fk_id) VALUES (#{id_value},0)"
        else
          @connection.execute "INSERT INTO fk_test_has_fk (fk_id) VALUES (0)"
        end
        # should deleted created record as otherwise disable_referential_integrity will try to enable contraints after executed block
        # and will fail (at least on Oracle)
        @connection.execute "DELETE FROM fk_test_has_fk"
      end
    end
  end
end