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* rename QueryMethods#prepare to QueryMethods#build * rename Connection#build_statement to Connection#build_prepared_statement * add Connection#build_unprepared_statement * add Connection #prepared and #unprepared dsl methods
101 lines
3.3 KiB
Crystal
101 lines
3.3 KiB
Crystal
require "./spec_helper"
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describe DB::Database do
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it "allows connection initialization" do
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cnn_setup = 0
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DB.open "dummy://localhost:1027?initial_pool_size=2&max_pool_size=4&max_idle_pool_size=1" do |db|
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cnn_setup.should eq(0)
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db.setup_connection do |cnn|
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cnn_setup += 1
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end
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cnn_setup.should eq(2)
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db.using_connection do
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cnn_setup.should eq(2)
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db.using_connection do
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cnn_setup.should eq(2)
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db.using_connection do
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cnn_setup.should eq(3)
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db.using_connection do
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cnn_setup.should eq(4)
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end
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# the pool didn't shrink no new initialization should be done next
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db.using_connection do
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cnn_setup.should eq(4)
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end
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end
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# the pool shrink 1. max_idle_pool_size=1
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# after the previous end there where 2.
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db.using_connection do
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cnn_setup.should eq(4)
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# so now there will be a new connection created
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db.using_connection do
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cnn_setup.should eq(5)
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end
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end
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end
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end
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end
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end
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it "should allow creation of more statements than pool connections" do
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DB.open "dummy://localhost:1027?initial_pool_size=1&max_pool_size=2" do |db|
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db.build("query1").should be_a(DB::PoolStatement)
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db.build("query2").should be_a(DB::PoolStatement)
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db.build("query3").should be_a(DB::PoolStatement)
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end
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end
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it "should return same statement in pool per query" do
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with_dummy do |db|
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stmt = db.build("query1")
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db.build("query2").should_not eq(stmt)
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db.build("query1").should eq(stmt)
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end
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end
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it "should close pool statements when closing db" do
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stmt = uninitialized DB::PoolStatement
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with_dummy do |db|
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stmt = db.build("query1")
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end
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stmt.closed?.should be_true
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end
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it "should not reconnect if connection is lost and retry_attempts=0" do
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DummyDriver::DummyConnection.clear_connections
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DB.open "dummy://localhost:1027?initial_pool_size=1&max_pool_size=1&retry_attempts=0" do |db|
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db.exec("stmt1")
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DummyDriver::DummyConnection.connections.size.should eq(1)
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DummyDriver::DummyConnection.connections.first.disconnect!
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expect_raises DB::PoolRetryAttemptsExceeded do
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db.exec("stmt1")
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end
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DummyDriver::DummyConnection.connections.size.should eq(1)
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end
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end
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it "should reconnect if connection is lost and executing same statement" do
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DummyDriver::DummyConnection.clear_connections
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DB.open "dummy://localhost:1027?initial_pool_size=1&max_pool_size=1&retry_attempts=1" do |db|
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db.exec("stmt1")
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DummyDriver::DummyConnection.connections.size.should eq(1)
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DummyDriver::DummyConnection.connections.first.disconnect!
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db.exec("stmt1")
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DummyDriver::DummyConnection.connections.size.should eq(2)
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end
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end
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it "should allow new connections if pool can increased and retry is not allowed" do
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DummyDriver::DummyConnection.clear_connections
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DB.open "dummy://localhost:1027?initial_pool_size=1&max_pool_size=2&retry_attempts=0" do |db|
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db.query("stmt1")
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DummyDriver::DummyConnection.connections.size.should eq(1)
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db.query("stmt1")
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DummyDriver::DummyConnection.connections.size.should eq(2)
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end
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end
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end
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