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require 'helper'
module SQLite3
class TestStatement < SQLite3::TestCase
def setup
@db = SQLite3::Database.new(':memory:')
@stmt = SQLite3::Statement.new(@db, "select 'foo'")
end
def teardown
@stmt.close if !@stmt.closed?
@db.close
end
def test_double_close_does_not_segv
@db.execute 'CREATE TABLE "things" ("number" float NOT NULL)'
stmt = @db.prepare 'INSERT INTO things (number) VALUES (?)'
assert_raises(SQLite3::ConstraintException) { stmt.execute(nil) }
stmt.close
assert_raises(SQLite3::Exception) { stmt.close }
end
def test_raises_type_error
assert_raises(TypeError) do
SQLite3::Statement.new( @db, nil )
end
end
def test_insert_duplicate_records
@db.execute 'CREATE TABLE "things" ("name" varchar(20) CONSTRAINT "index_things_on_name" UNIQUE)'
stmt = @db.prepare("INSERT INTO things(name) VALUES(?)")
stmt.execute('ruby')
exception = assert_raises(SQLite3::ConstraintException) { stmt.execute('ruby') }
# SQLite 3.8.2 returns new error message:
# UNIQUE constraint failed: *table_name*.*column_name*
# Older versions of SQLite return:
# column *column_name* is not unique
assert_match(/(column(s)? .* (is|are) not unique|UNIQUE constraint failed: .*)/, exception.message)
stmt.close
end
###
# This method may not exist depending on how sqlite3 was compiled
def test_database_name
@db.execute('create table foo(text BLOB)')
@db.execute('insert into foo(text) values (?)',SQLite3::Blob.new('hello'))
stmt = @db.prepare('select text from foo')
if stmt.respond_to?(:database_name)
assert_equal 'main', stmt.database_name(0)
end
stmt.close
end
def test_prepare_blob
@db.execute('create table foo(text BLOB)')
stmt = @db.prepare('insert into foo(text) values (?)')
stmt.bind_param(1, SQLite3::Blob.new('hello'))
stmt.step
stmt.close
end
def test_select_blob
@db.execute('create table foo(text BLOB)')
@db.execute('insert into foo(text) values (?)',SQLite3::Blob.new('hello'))
assert_equal 'hello', @db.execute('select * from foo').first.first
end
def test_new
assert @stmt
end
def test_new_closed_handle
@db = SQLite3::Database.new(':memory:')
@db.close
assert_raises(ArgumentError) do
SQLite3::Statement.new(@db, 'select "foo"')
end
end
def test_new_with_remainder
stmt = SQLite3::Statement.new(@db, "select 'foo';bar")
assert_equal 'bar', stmt.remainder
stmt.close
end
def test_empty_remainder
assert_equal '', @stmt.remainder
end
def test_close
@stmt.close
assert @stmt.closed?
end
def test_double_close
@stmt.close
assert_raises(SQLite3::Exception) do
@stmt.close
end
end
def test_bind_param_string
stmt = SQLite3::Statement.new(@db, "select ?")
stmt.bind_param(1, "hello")
result = nil
stmt.each { |x| result = x }
assert_equal ['hello'], result
stmt.close
end
def test_bind_param_int
stmt = SQLite3::Statement.new(@db, "select ?")
stmt.bind_param(1, 10)
result = nil
stmt.each { |x| result = x }
assert_equal [10], result
stmt.close
end
def test_bind_nil
stmt = SQLite3::Statement.new(@db, "select ?")
stmt.bind_param(1, nil)
result = nil
stmt.each { |x| result = x }
assert_equal [nil], result
stmt.close
end
def test_bind_blob
@db.execute('create table foo(text BLOB)')
stmt = SQLite3::Statement.new(@db, 'insert into foo(text) values (?)')
stmt.bind_param(1, SQLite3::Blob.new('hello'))
stmt.execute
row = @db.execute('select * from foo')
stmt.close
assert_equal ['hello'], row.first
capture_io do # hush deprecation warning
assert_equal ['blob'], row.first.types
end
end
def test_bind_64
stmt = SQLite3::Statement.new(@db, "select ?")
stmt.bind_param(1, 2 ** 31)
result = nil
stmt.each { |x| result = x }
assert_equal [2 ** 31], result
stmt.close
end
def test_bind_double
stmt = SQLite3::Statement.new(@db, "select ?")
stmt.bind_param(1, 2.2)
result = nil
stmt.each { |x| result = x }
assert_equal [2.2], result
stmt.close
end
def test_named_bind
stmt = SQLite3::Statement.new(@db, "select :foo")
stmt.bind_param(':foo', 'hello')
result = nil
stmt.each { |x| result = x }
assert_equal ['hello'], result
stmt.close
end
def test_named_bind_no_colon
stmt = SQLite3::Statement.new(@db, "select :foo")
stmt.bind_param('foo', 'hello')
result = nil
stmt.each { |x| result = x }
assert_equal ['hello'], result
stmt.close
end
def test_named_bind_symbol
stmt = SQLite3::Statement.new(@db, "select :foo")
stmt.bind_param(:foo, 'hello')
result = nil
stmt.each { |x| result = x }
assert_equal ['hello'], result
stmt.close
end
def test_named_bind_not_found
stmt = SQLite3::Statement.new(@db, "select :foo")
assert_raises(SQLite3::Exception) do
stmt.bind_param('bar', 'hello')
end
stmt.close
end
def test_each
r = nil
@stmt.each do |row|
r = row
end
assert_equal(['foo'], r)
end
def test_reset!
r = []
@stmt.each { |row| r << row }
@stmt.reset!
@stmt.each { |row| r << row }
assert_equal [['foo'], ['foo']], r
end
def test_step
r = @stmt.step
assert_equal ['foo'], r
end
def test_step_twice
assert_not_nil @stmt.step
assert !@stmt.done?
assert_nil @stmt.step
assert @stmt.done?
@stmt.reset!
assert !@stmt.done?
end
def test_step_never_moves_past_done
10.times { @stmt.step }
@stmt.done?
end
def test_column_count
assert_equal 1, @stmt.column_count
end
def test_column_name
assert_equal "'foo'", @stmt.column_name(0)
assert_nil @stmt.column_name(10)
end
def test_bind_parameter_count
stmt = SQLite3::Statement.new(@db, "select ?, ?, ?")
assert_equal 3, stmt.bind_parameter_count
stmt.close
end
def test_execute_with_varargs
stmt = @db.prepare('select ?, ?')
assert_equal [[nil, nil]], stmt.execute(nil, nil).to_a
stmt.close
end
def test_execute_with_hash
stmt = @db.prepare('select :n, :h')
assert_equal [[10, nil]], stmt.execute('n' => 10, 'h' => nil).to_a
stmt.close
end
def test_with_error
@db.execute('CREATE TABLE "employees" ("name" varchar(20) NOT NULL CONSTRAINT "index_employees_on_name" UNIQUE)')
stmt = @db.prepare("INSERT INTO Employees(name) VALUES(?)")
stmt.execute('employee-1')
stmt.execute('employee-1') rescue SQLite3::ConstraintException
stmt.reset!
assert stmt.execute('employee-2')
stmt.close
end
def test_clear_bindings!
stmt = @db.prepare('select ?, ?')
stmt.bind_param 1, "foo"
stmt.bind_param 2, "bar"
# We can't fetch bound parameters back out of sqlite3, so just call
# the clear_bindings! method and assert that nil is returned
stmt.clear_bindings!
while x = stmt.step
assert_equal [nil, nil], x
end
stmt.close
end
end
end
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