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class TestPostgresArray < DBDConfig.testbase(:postgresql)
def test_array_type
assert_nothing_raised do
cols = @dbh.columns("array_test")
assert_equal(
[
{
:name =>"foo",
:default =>nil,
:primary =>nil,
:scale =>nil,
:sql_type =>DBI::SQL_INTEGER,
:nullable =>true,
:indexed =>false,
:precision =>-1,
:type_name =>"integer",
:unique =>nil,
:array_of_type => true
},
{
:name =>"bar",
:default =>nil,
:primary =>nil,
:scale =>nil,
:sql_type =>DBI::SQL_INTEGER,
:nullable =>true,
:indexed =>false,
:precision =>-1,
:type_name =>"integer",
:unique =>nil,
:array_of_type => true
},
{
:name =>"baz",
:default =>nil,
:primary =>nil,
:scale =>nil,
:sql_type =>DBI::SQL_INTEGER,
:nullable =>true,
:indexed =>false,
:precision =>-1,
:type_name =>"integer",
:unique =>nil,
:array_of_type => true
},
{
:array_of_type=>true,
:unique=>nil,
:precision=>-1,
:name=>"quux",
:default=>nil,
:indexed=>false,
:scale=>nil,
:primary=>nil,
:sql_type=>12,
:nullable=>true,
:type_name=>"character varying"
}
], cols.collect { |x| x.reject { |key, value| key == :dbi_type } }
)
assert_equal(([DBI::DBD::Pg::Type::Array] * 4), cols.collect { |x| x["dbi_type"].class })
assert_equal((([DBI::Type::Integer] * 3) + [DBI::Type::Varchar]), cols.collect { |x| x["dbi_type"].base_type })
end
end
def test_array_parser
# string representation
assert_nothing_raised do
sth = @dbh.prepare('insert into array_test (foo) values (?)')
sth.execute('{1,2,3}')
sth.finish
end
assert_nothing_raised do
sth = @dbh.prepare('insert into array_test (foo) values (?)')
sth.execute([1,2,3])
sth.finish
end
assert_nothing_raised do
sth = @dbh.prepare('insert into array_test (quux) values (?)')
sth.execute(["Hello\\ World", "Again\\"])
sth.finish
end
assert_nothing_raised do
sth = @dbh.prepare('select foo from array_test where foo is not null')
sth.execute
assert_equal(
[
[[1,2,3]],
[[1,2,3]],
], sth.fetch_all
)
sth.finish
sth = @dbh.prepare('select quux from array_test where quux is not null')
sth.execute
assert_equal(
[
[["Hello\\ World", "Again\\"]]
], sth.fetch_all
)
sth.finish
end
end
def test_array_boundaries
# bar has a max extents of 3
sth = @dbh.prepare('insert into array_test (bar) values (?)')
assert_nothing_raised do
sth.execute('{1,2,3}')
end
# XXX postgresql does not enforce extents on single-dimension arrays
assert_nothing_raised do
sth.execute('{1,2,3,4}')
end
sth.finish
sth = @dbh.prepare('insert into array_test(baz) values (?)')
assert_nothing_raised do
sth.execute('{{1,2,3}, {1,2,3}}')
end
assert_nothing_raised do
# XXX for the record, I have no fucking idea why this works, what
# it's technically represented as and what backwards array
# implementation would allow it to work.
#
# I'm hoping it'll break on some future version of postgresql so I
# can fix it.
sth.execute('{1,2,3}')
end
assert_raises(DBI::ProgrammingError) do
sth.execute('{{1,2,3,4}, {1,2,3}}')
end
assert_raises(DBI::ProgrammingError) do
sth.execute('{{1,2,3}, {1,2,3,4}}')
end
sth.finish
end
def test_array_type_parser
pc = DBI::DBD::Pg::Type::Array
assert_nothing_raised do
po = pc.new(DBI::Type::Integer)
assert_equal([1,2,3], po.parse("{1,2,3}"))
assert_equal([[1,2,3],[4,5,6]], po.parse("{{1,2,3},{4,5,6}}"))
end
assert_nothing_raised do
po = pc.new(DBI::Type::Varchar)
assert_equal(["one", "two", "three"], po.parse("{\"one\",\"two\",\"three\"}"))
assert_equal([["one"], ["two\\"]], po.parse("{{\"one\"},{\"two\\\\\"}}"))
assert_equal([["one", "two\\"], ["three\\", "four"]], po.parse("{{\"one\",\"two\\\\\"},{\"three\\\\\",\"four\"}}"))
end
end
def test_array_generator
pg = DBI::DBD::Pg
assert_nothing_raised do
assert_equal("{1,2,3}", pg.generate_array([1,2,3]))
assert_equal("{{1,2,3},{1,2,3}}", pg.generate_array([[1,2,3],[1,2,3]]))
assert_equal("{\"one\",\"two\"}", pg.generate_array(["one", "two"]))
assert_equal("{\"hello\\\\ world\",\"again\"}", pg.generate_array(["hello\\ world", "again"]))
end
end
end
|
