File: test_statement.rb

package info (click to toggle)
ruby-dbd-mysql 0.4.4%2Bgem2deb-2
  • links: PTS, VCS
  • area: main
  • in suites: jessie, jessie-kfreebsd
  • size: 292 kB
  • ctags: 159
  • sloc: ruby: 1,403; sql: 47; makefile: 2
file content (326 lines) | stat: -rw-r--r-- 10,190 bytes parent folder | download | duplicates (10)
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
@class = Class.new(DBDConfig.testbase(DBDConfig.current_dbtype)) do
   
    def prep_status_statement
        @sth.finish if (@sth and !@sth.finished?)
        @sth = @dbh.prepare("select * from names order by age")
        @sth.raise_error = true
    end

    def test_status
        names_rc = 3

        [:fetch, :fetch_hash, :each, :fetch_all].each do |call|
            assert_raise(DBI::InterfaceError, DBI::NotSupportedError) do
                prep_status_statement
                @sth.send(call)
            end
        end
        
        # for these next three, it doesn't really matter what the args are, it should fail
        assert_raises(DBI::InterfaceError, DBI::NotSupportedError) do
            prep_status_statement
            @sth.fetch_many(1) 
        end

        assert_raises(DBI::InterfaceError, DBI::NotSupportedError) do
            prep_status_statement
            @sth.fetch_scroll(0, 0)
        end

        assert_raises(DBI::InterfaceError, DBI::NotSupportedError) do
            prep_status_statement
            @sth.each { |x| }
        end

        assert_raises(DBI::InterfaceError) do
            prep_status_statement
            @sth.execute
            2.times { @sth.fetch_all }
        end

        assert_raises(DBI::InterfaceError) do
            prep_status_statement
            @sth.execute
            # XXX fetch_many won't know it can't fetch anything until the third time around.
            3.times { @sth.fetch_many(names_rc) }
        end
    end

    def test_execute
        assert_nothing_raised do
            @dbh.execute("select * from names order by age") do |sth|
                assert_equal([["Joe", 19], ["Bob", 21], ["Jim", 30]], sth.fetch_all)
            end
        end
    end

    def test_quoting # FIXME breaks sqlite-ruby to a segfault - research
        @sth = nil

        assert_nothing_raised do
            if dbtype == "postgresql"
                @sth = @dbh.prepare('select E\'\\\\\'')
            else
                @sth = @dbh.prepare('select \'\\\\\'')
            end
            @sth.execute
            row = @sth.fetch
            assert_equal ['\\'], row
            @sth.finish
        end
    end

    def test_duplicate_columns
        assert_nothing_raised do
            @sth = @dbh.prepare("select name, name from names where name = ?")
            @sth.execute("Bob")
            assert_equal [["Bob", "Bob"]], @sth.fetch_all
            @sth.finish
        end
    end

    def test_columninfo
        @sth = nil
        
        assert_nothing_raised do
            @sth = @dbh.prepare("select * from precision_test")
            @sth.execute

            cols = @sth.column_info

            assert(cols)
            assert_kind_of(Array, cols)
            assert_equal(4, cols.length)
            
            # the first column should always be "text_field" and have the following
            # properties:
            assert_equal("text_field", cols[0]["name"])
            assert_equal(20, cols[0]["precision"])
            # scale can be either nil or 0 for character types.
            case cols[0]["scale"]
            when nil
                assert_equal(nil, cols[0]["scale"])
            when 0
                assert_equal(0, cols[0]["scale"])
            else
                flunk "scale can be either 0 or nil for character types"
            end
                
            assert_equal(
                DBI::Type::Varchar.object_id, 
                DBI::TypeUtil.type_name_to_module(cols[0]["type_name"]).object_id
            )

            # the second column should always be "integer_field" and have the following
            # properties:
            assert_equal("integer_field", cols[1]["name"])
            # if these aren't set on the field, they should not exist
            # FIXME mysql does not follow this rule, neither does ODBC
            if dbtype == "mysql" 
                assert_equal(0, cols[1]["scale"])
                assert_equal(11, cols[1]["precision"])
            elsif dbtype == "odbc"
                assert_equal(0, cols[1]["scale"])
                assert_equal(10, cols[1]["precision"])
            else
                assert(!cols[1]["scale"])
                assert(!cols[1]["precision"])
            end

            assert_equal(
                DBI::Type::Integer.object_id, 
                DBI::TypeUtil.type_name_to_module(cols[1]["type_name"]).object_id
            )

            # the second column should always be "integer_field" and have the following
            # properties:
            assert_equal("decimal_field", cols[2]["name"])
            assert_equal(1, cols[2]["scale"])
            assert_equal(2, cols[2]["precision"])
            assert_equal(
                DBI::Type::Decimal.object_id, 
                DBI::TypeUtil.type_name_to_module(cols[2]["type_name"]).object_id
            )

            # the second column should always be "numeric_field" and have the following
            # properties:
            assert_equal("numeric_field", cols[3]["name"])
            assert_equal(6, cols[3]["scale"])
            assert_equal(30, cols[3]["precision"])
            assert_equal(
                DBI::Type::Decimal.object_id, 
                DBI::TypeUtil.type_name_to_module(cols[3]["type_name"]).object_id
            )

            cols.each { |col| assert_kind_of(DBI::ColumnInfo, col) }
            @sth.finish
        end
    end

    def test_duplicate_columns
        assert_nothing_raised do
            @sth = @dbh.prepare("select name, name from names where name = ?")
            @sth.execute("Bob")
            assert_equal [["Bob", "Bob"]], @sth.fetch_all
            @sth.finish
        end
    end

    def test_rows
        @sth = nil

        assert_nothing_raised do
            @sth = @dbh.prepare("insert into names (name, age) values (?, ?)")
            @sth.execute("Bill", 22);
        end

        assert 1, @sth.rows

        @sth.finish
        @sth = nil

        assert_nothing_raised do
            @sth = @dbh.prepare("delete from names where name = ?")
            @sth.execute("Bill");
        end

        assert 1, @sth.rows

        @sth.finish

        assert_nothing_raised do
            @sth = @dbh.prepare("select * from names")
            @sth.execute
        end

        assert_equal 0, @sth.rows
        assert @sth.fetchable?
        assert @sth.any?
        assert @sth.rows.zero?
        @sth.finish
    end

    def test_prepare_execute
        assert_nothing_raised do 
            @sth = @dbh.prepare("select * from names")
            @sth.execute
            @sth.finish
        end

        assert_nothing_raised do
            @sth = @dbh.prepare("select * from names where name = ?")
            @sth.execute("Bob")
            @sth.finish
        end

        assert_nothing_raised do
            @sth = @dbh.prepare("insert into names (name, age) values (?, ?)")
            @sth.execute("Bill", 22);
            @sth.finish
        end
    end

    def test_prepare_execute_with_transactions
        @dbh["AutoCommit"] = false 
        config = DBDConfig.get_config['sqlite3']

        # rollback 1 (the right way)
        @sth = nil
        @sth2 = nil

        assert_nothing_raised do
            @sth = @dbh.prepare("insert into names (name, age) values (?, ?)")
            @sth.execute("Billy", 23)
            @sth2 = @dbh.prepare("select * from names where name = ?")
            @sth2.execute("Billy")
        end
        assert_equal ["Billy", 23 ], @sth2.fetch
        @sth2.finish
        @sth.finish
        assert_nothing_raised { @dbh.rollback }

        @sth = @dbh.prepare("select * from names where name = ?")
        @sth.execute("Billy")
        assert_nil @sth.fetch
        @sth.finish
       
        # rollback 2 (without closing statements first)

        @sth = nil
        @sth2 = nil

        assert_nothing_raised do
            @sth = @dbh.prepare("insert into names (name, age) values (?, ?)")
            @sth.execute("Billy", 23)
            @sth2 = @dbh.prepare("select * from names where name = ?")
            @sth2.execute("Billy")
        end

        assert_equal ["Billy", 23], @sth2.fetch

        # FIXME some throw here, some don't. we should probably normalize this
        @dbh.rollback rescue true
        
        @sth2.finish
        @sth.finish
        assert_nothing_raised { @dbh.rollback }
        
        @sth = @dbh.prepare("select * from names where name = ?")
        @sth.execute("Billy")
        assert_nil @sth.fetch
        @sth.finish

        # commit

        @sth = nil
        @sth2 = nil

        assert_nothing_raised do
            @sth = @dbh.prepare("insert into names (name, age) values (?, ?)")
            @sth.execute("Billy", 23)
            @sth2 = @dbh.prepare("select * from names where name = ?")
            @sth2.execute("Billy")
        end
        assert_equal ["Billy", 23 ], @sth2.fetch
        @sth2.finish
        @sth.finish
        assert_nothing_raised { @dbh.commit }

        @sth = @dbh.prepare("select * from names where name = ?")
        @sth.execute("Billy")
        assert_equal ["Billy", 23 ], @sth.fetch
        @sth.finish
    end

    def test_fetch
        @sth = nil
        assert_nothing_raised do 
            @sth = @dbh.prepare("select * from names order by age")
            @sth.execute
        end

        # this tests that we're getting the rows in the right order,
        # and that the types are being converted. 
        assert_equal ["Joe", 19], @sth.fetch
        assert_equal ["Bob", 21], @sth.fetch
        assert_equal ["Jim", 30], @sth.fetch
        assert_nil @sth.fetch

        @sth.finish
    end

    def test_transaction_block
        @dbh["AutoCommit"] = false
        # this transaction should not fail because it called return early
        @dbh.transaction do |dbh|
            dbh.do('INSERT INTO names (name, age) VALUES (?, ?)', "Cooter", 69)
            return 42
        end 
        @sth = @dbh.prepare("select * from names where name = ?")
        @sth.execute("Cooter")
        row = @sth.fetch
        assert row
        assert_equal ["Cooter", 69], row
        @sth.finish
    end
end