aboutsummaryrefslogtreecommitdiffstats
path: root/activerecord/test/cases/schema_dumper_test.rb
blob: 741827446dc2525309bc46f28d717d30ba335ce2 (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
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
require "cases/helper"

class SchemaDumperTest < ActiveRecord::TestCase
  def setup
    super
    ActiveRecord::SchemaMigration.create_table
    @stream = StringIO.new
  end

  def standard_dump
    @stream = StringIO.new
    ActiveRecord::SchemaDumper.ignore_tables = []
    ActiveRecord::SchemaDumper.dump(ActiveRecord::Base.connection, @stream)
    @stream.string
  end

  def test_dump_schema_information_outputs_lexically_ordered_versions
    versions = %w{ 20100101010101 20100201010101 20100301010101 }
    versions.reverse.each do |v|
      ActiveRecord::SchemaMigration.create!(:version => v)
    end

    schema_info = ActiveRecord::Base.connection.dump_schema_information
    assert_match(/20100201010101.*20100301010101/m, schema_info)
  end

  def test_magic_comment
    assert_match "# encoding: #{@stream.external_encoding.name}", standard_dump
  end

  def test_schema_dump
    output = standard_dump
    assert_match %r{create_table "accounts"}, output
    assert_match %r{create_table "authors"}, output
    assert_no_match %r{create_table "schema_migrations"}, output
  end

  def test_schema_dump_excludes_sqlite_sequence
    output = standard_dump
    assert_no_match %r{create_table "sqlite_sequence"}, output
  end

  def test_schema_dump_includes_camelcase_table_name
    output = standard_dump
    assert_match %r{create_table "CamelCase"}, output
  end

  def assert_line_up(lines, pattern, required = false)
    return assert(true) if lines.empty?
    matches = lines.map { |line| line.match(pattern) }
    assert matches.all? if required
    matches.compact!
    return assert(true) if matches.empty?
    assert_equal 1, matches.map{ |match| match.offset(0).first }.uniq.length
  end

  def column_definition_lines(output = standard_dump)
    output.scan(/^( *)create_table.*?\n(.*?)^\1end/m).map{ |m| m.last.split(/\n/) }
  end

  def test_types_line_up
    column_definition_lines.each do |column_set|
      next if column_set.empty?

      lengths = column_set.map do |column|
        if match = column.match(/t\.(?:integer|decimal|float|datetime|timestamp|time|date|text|binary|string|boolean)\s+"/)
          match[0].length
        end
      end

      assert_equal 1, lengths.uniq.length
    end
  end

  def test_arguments_line_up
    column_definition_lines.each do |column_set|
      assert_line_up(column_set, /default: /)
      assert_line_up(column_set, /limit: /)
      assert_line_up(column_set, /null: /)
    end
  end

  def test_no_dump_errors
    output = standard_dump
    assert_no_match %r{\# Could not dump table}, output
  end

  def test_schema_dump_includes_not_null_columns
    stream = StringIO.new

    ActiveRecord::SchemaDumper.ignore_tables = [/^[^r]/]
    ActiveRecord::SchemaDumper.dump(ActiveRecord::Base.connection, stream)
    output = stream.string
    assert_match %r{null: false}, output
  end

  def test_schema_dump_includes_limit_constraint_for_integer_columns
    stream = StringIO.new

    ActiveRecord::SchemaDumper.ignore_tables = [/^(?!integer_limits)/]
    ActiveRecord::SchemaDumper.dump(ActiveRecord::Base.connection, stream)
    output = stream.string

    if current_adapter?(:PostgreSQLAdapter)
      assert_match %r{c_int_1.*limit: 2}, output
      assert_match %r{c_int_2.*limit: 2}, output

      # int 3 is 4 bytes in postgresql
      assert_match %r{c_int_3.*}, output
      assert_no_match %r{c_int_3.*limit:}, output

      assert_match %r{c_int_4.*}, output
      assert_no_match %r{c_int_4.*limit:}, output
    elsif current_adapter?(:MysqlAdapter, :Mysql2Adapter)
      assert_match %r{c_int_1.*limit: 1}, output
      assert_match %r{c_int_2.*limit: 2}, output
      assert_match %r{c_int_3.*limit: 3}, output

      assert_match %r{c_int_4.*}, output
      assert_no_match %r{c_int_4.*:limit}, output
    elsif current_adapter?(:SQLite3Adapter)
      assert_match %r{c_int_1.*limit: 1}, output
      assert_match %r{c_int_2.*limit: 2}, output
      assert_match %r{c_int_3.*limit: 3}, output
      assert_match %r{c_int_4.*limit: 4}, output
    end
    assert_match %r{c_int_without_limit.*}, output
    assert_no_match %r{c_int_without_limit.*limit:}, output

    if current_adapter?(:SQLite3Adapter)
      assert_match %r{c_int_5.*limit: 5}, output
      assert_match %r{c_int_6.*limit: 6}, output
      assert_match %r{c_int_7.*limit: 7}, output
      assert_match %r{c_int_8.*limit: 8}, output
    elsif current_adapter?(:OracleAdapter)
      assert_match %r{c_int_5.*limit: 5}, output
      assert_match %r{c_int_6.*limit: 6}, output
      assert_match %r{c_int_7.*limit: 7}, output
      assert_match %r{c_int_8.*limit: 8}, output
    else
      assert_match %r{c_int_5.*limit: 8}, output
      assert_match %r{c_int_6.*limit: 8}, output
      assert_match %r{c_int_7.*limit: 8}, output
      assert_match %r{c_int_8.*limit: 8}, output
    end
  end

  def test_schema_dump_with_string_ignored_table
    stream = StringIO.new

    ActiveRecord::SchemaDumper.ignore_tables = ['accounts']
    ActiveRecord::SchemaDumper.dump(ActiveRecord::Base.connection, stream)
    output = stream.string
    assert_no_match %r{create_table "accounts"}, output
    assert_match %r{create_table "authors"}, output
    assert_no_match %r{create_table "schema_migrations"}, output
  end

  def test_schema_dump_with_regexp_ignored_table
    stream = StringIO.new

    ActiveRecord::SchemaDumper.ignore_tables = [/^account/]
    ActiveRecord::SchemaDumper.dump(ActiveRecord::Base.connection, stream)
    output = stream.string
    assert_no_match %r{create_table "accounts"}, output
    assert_match %r{create_table "authors"}, output
    assert_no_match %r{create_table "schema_migrations"}, output
  end

  def test_schema_dump_illegal_ignored_table_value
    stream = StringIO.new
    ActiveRecord::SchemaDumper.ignore_tables = [5]
    assert_raise(StandardError) do
      ActiveRecord::SchemaDumper.dump(ActiveRecord::Base.connection, stream)
    end
  end

  def test_schema_dumps_index_columns_in_right_order
    index_definition = standard_dump.split(/\n/).grep(/add_index.*companies/).first.strip
    if current_adapter?(:MysqlAdapter) || current_adapter?(:Mysql2Adapter) || current_adapter?(:PostgreSQLAdapter)
      assert_equal 'add_index "companies", ["firm_id", "type", "rating"], name: "company_index", using: :btree', index_definition
    else
      assert_equal 'add_index "companies", ["firm_id", "type", "rating"], name: "company_index"', index_definition
    end
  end

  def test_schema_dumps_partial_indices
    index_definition = standard_dump.split(/\n/).grep(/add_index.*company_partial_index/).first.strip
    if current_adapter?(:PostgreSQLAdapter)
      assert_equal 'add_index "companies", ["firm_id", "type"], name: "company_partial_index", where: "(rating > 10)", using: :btree', index_definition
    elsif current_adapter?(:MysqlAdapter) || current_adapter?(:Mysql2Adapter)
      assert_equal 'add_index "companies", ["firm_id", "type"], name: "company_partial_index", using: :btree', index_definition
    else
      assert_equal 'add_index "companies", ["firm_id", "type"], name: "company_partial_index"', index_definition
    end
  end

  def test_schema_dump_should_honor_nonstandard_primary_keys
    output = standard_dump
    match = output.match(%r{create_table "movies"(.*)do})
    assert_not_nil(match, "nonstandardpk table not found")
    assert_match %r(primary_key: "movieid"), match[1], "non-standard primary key not preserved"
  end

  def test_schema_dump_should_use_false_as_default
    output = standard_dump
    assert_match %r{t\.boolean\s+"has_fun",.+default: false}, output
  end

  if current_adapter?(:MysqlAdapter, :Mysql2Adapter)
    def test_schema_dump_should_not_add_default_value_for_mysql_text_field
      output = standard_dump
      assert_match %r{t.text\s+"body",\s+null: false$}, output
    end

    def test_schema_dump_includes_length_for_mysql_binary_fields
      output = standard_dump
      assert_match %r{t.binary\s+"var_binary",\s+limit: 255$}, output
      assert_match %r{t.binary\s+"var_binary_large",\s+limit: 4095$}, output
    end

    def test_schema_dump_includes_length_for_mysql_blob_and_text_fields
      output = standard_dump
      assert_match %r{t.binary\s+"tiny_blob",\s+limit: 255$}, output
      assert_match %r{t.binary\s+"normal_blob"$}, output
      assert_match %r{t.binary\s+"medium_blob",\s+limit: 16777215$}, output
      assert_match %r{t.binary\s+"long_blob",\s+limit: 2147483647$}, output
      assert_match %r{t.text\s+"tiny_text",\s+limit: 255$}, output
      assert_match %r{t.text\s+"normal_text"$}, output
      assert_match %r{t.text\s+"medium_text",\s+limit: 16777215$}, output
      assert_match %r{t.text\s+"long_text",\s+limit: 2147483647$}, output
    end

    def test_schema_dumps_index_type
      output = standard_dump
      assert_match %r{add_index "key_tests", \["awesome"\], name: "index_key_tests_on_awesome", type: :fulltext}, output
      assert_match %r{add_index "key_tests", \["pizza"\], name: "index_key_tests_on_pizza", using: :btree}, output
    end
  end

  def test_schema_dump_includes_decimal_options
    stream = StringIO.new
    ActiveRecord::SchemaDumper.ignore_tables = [/^[^n]/]
    ActiveRecord::SchemaDumper.dump(ActiveRecord::Base.connection, stream)
    output = stream.string
    assert_match %r{precision: 3,[[:space:]]+scale: 2,[[:space:]]+default: 2.78}, output
  end

  if current_adapter?(:PostgreSQLAdapter)
    def test_schema_dump_includes_bigint_default
      output = standard_dump
      assert_match %r{t.integer\s+"bigint_default",\s+limit: 8,\s+default: 0}, output
    end

    if ActiveRecord::Base.connection.supports_extensions?
      def test_schema_dump_includes_extensions
        connection = ActiveRecord::Base.connection

        connection.stubs(:extensions).returns(['hstore'])
        output = standard_dump
        assert_match "# These are extensions that must be enabled", output
        assert_match %r{enable_extension "hstore"}, output

        connection.stubs(:extensions).returns([])
        output = standard_dump
        assert_no_match "# These are extensions that must be enabled", output
        assert_no_match %r{enable_extension}, output
      end
    end

    def test_schema_dump_includes_xml_shorthand_definition
      output = standard_dump
      if %r{create_table "postgresql_xml_data_type"} =~ output
        assert_match %r{t.xml "data"}, output
      end
    end

    def test_schema_dump_includes_json_shorthand_definition
      output = standard_dump
      if %r{create_table "postgresql_json_data_type"} =~ output
        assert_match %r|t.json "json_data", default: {}|, output
      end
    end

    def test_schema_dump_includes_inet_shorthand_definition
      output = standard_dump
      if %r{create_table "postgresql_network_addresses"} =~ output
        assert_match %r{t.inet\s+"inet_address",\s+default: "192.168.1.1"}, output
      end
    end

    def test_schema_dump_includes_cidr_shorthand_definition
      output = standard_dump
      if %r{create_table "postgresql_network_addresses"} =~ output
        assert_match %r{t.cidr\s+"cidr_address",\s+default: "192.168.1.0/24"}, output
      end
    end

    def test_schema_dump_includes_macaddr_shorthand_definition
      output = standard_dump
      if %r{create_table "postgresql_network_addresses"} =~ output
        assert_match %r{t.macaddr\s+"mac_address",\s+default: "ff:ff:ff:ff:ff:ff"}, output
      end
    end

    def test_schema_dump_includes_uuid_shorthand_definition
      output = standard_dump
      if %r{create_table "postgresql_uuids"} =~ output
        assert_match %r{t.uuid "guid"}, output
      end
    end

    def test_schema_dump_includes_hstores_shorthand_definition
      output = standard_dump
      if %r{create_table "postgresql_hstores"} =~ output
        assert_match %r[t.hstore "hash_store", default: {}], output
      end
    end

    def test_schema_dump_includes_ltrees_shorthand_definition
      output = standard_dump
      if %r{create_table "postgresql_ltrees"} =~ output
        assert_match %r[t.ltree "path"], output
      end
    end

    def test_schema_dump_includes_arrays_shorthand_definition
      output = standard_dump
      if %r{create_table "postgresql_arrays"} =~ output
        assert_match %r[t.text\s+"nicknames",\s+array: true], output
        assert_match %r[t.integer\s+"commission_by_quarter",\s+array: true], output
      end
    end

    def test_schema_dump_includes_tsvector_shorthand_definition
      output = standard_dump
      if %r{create_table "postgresql_tsvectors"} =~ output
        assert_match %r{t.tsvector "text_vector"}, output
      end
    end
  end

  def test_schema_dump_keeps_large_precision_integer_columns_as_decimal
    output = standard_dump
    # Oracle supports precision up to 38 and it identifies decimals with scale 0 as integers
    if current_adapter?(:OracleAdapter)
      assert_match %r{t.integer\s+"atoms_in_universe",\s+precision: 38,\s+scale: 0}, output
    else
      assert_match %r{t.decimal\s+"atoms_in_universe",\s+precision: 55,\s+scale: 0}, output
    end
  end

  def test_schema_dump_keeps_id_column_when_id_is_false_and_id_column_added
    output = standard_dump
    match = output.match(%r{create_table "goofy_string_id"(.*)do.*\n(.*)\n})
    assert_not_nil(match, "goofy_string_id table not found")
    assert_match %r(id: false), match[1], "no table id not preserved"
    assert_match %r{t.string[[:space:]]+"id",[[:space:]]+null: false$}, match[2], "non-primary key id column not preserved"
  end

  def test_schema_dump_keeps_id_false_when_id_is_false_and_unique_not_null_column_added
    output = standard_dump
    assert_match %r{create_table "subscribers", id: false}, output
  end

  class CreateDogMigration < ActiveRecord::Migration
    def up
      create_table("dogs") do |t|
        t.column :name, :string
      end
      add_index "dogs", [:name]
    end
    def down
      drop_table("dogs")
    end
  end

  def test_schema_dump_with_table_name_prefix_and_suffix
    original, $stdout = $stdout, StringIO.new
    ActiveRecord::Base.table_name_prefix = 'foo_'
    ActiveRecord::Base.table_name_suffix = '_bar'

    migration = CreateDogMigration.new
    migration.migrate(:up)

    output = standard_dump
    assert_no_match %r{create_table "foo_.+_bar"}, output
    assert_no_match %r{create_index "foo_.+_bar"}, output
    assert_no_match %r{create_table "schema_migrations"}, output
  ensure
    migration.migrate(:down)

    ActiveRecord::Base.table_name_suffix = ActiveRecord::Base.table_name_prefix = ''
    $stdout = original
  end

end