259 lines
7.0 KiB
Crystal
259 lines
7.0 KiB
Crystal
require "./spec_helper"
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def with_db(&block : DB::Database ->)
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DB.open "sqlite3", DB_FILENAME, &block
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ensure
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File.delete(DB_FILENAME)
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end
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def with_mem_db(&block : DB::Database ->)
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DB.open "sqlite3", ":memory:", &block
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end
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def sql(s : String)
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"#{s.inspect}"
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end
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def sql(s)
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"#{s}"
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end
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def sqlite_type_for(v)
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case v
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when String ; "text"
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when Int32, Int64 ; "int"
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when Float32, Float64; "float"
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else
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raise "not implemented for #{typeof(v)}"
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end
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end
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def assert_single_read(rs, value_type, value)
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rs.move_next.should be_true
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rs.read(value_type).should eq(value)
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rs.move_next.should be_false
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end
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def assert_single_read?(rs, value_type, value)
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rs.move_next.should be_true
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rs.read?(value_type).should eq(value)
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rs.move_next.should be_false
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end
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describe Driver do
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it "should register sqlite3 name" do
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DB.driver_class("sqlite3").should eq(SQLite3::Driver)
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end
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it "should use database option as file to open" do
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with_db do |db|
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db.driver_class.should eq(SQLite3::Driver)
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File.exists?(DB_FILENAME).should be_true
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end
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end
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{% for value in [1, 1_i64, "hello", 1.5, 1.5_f32] %}
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it "executes and select {{value.id}}" do
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with_db do |db|
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db.scalar(typeof({{value}}), "select #{sql({{value}})}").should eq({{value}})
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db.query "select #{sql({{value}})}" do |rs|
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assert_single_read rs, typeof({{value}}), {{value}}
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end
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end
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end
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it "executes and select {{value.id}} as nillable" do
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with_db do |db|
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db.scalar?(typeof({{value}}), "select #{sql({{value}})}").should eq({{value}})
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db.query "select #{sql({{value}})}" do |rs|
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assert_single_read? rs, typeof({{value}}), {{value}}
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end
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end
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end
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it "executes and select nil as type of {{value.id}}" do
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with_db do |db|
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db.scalar?(typeof({{value}}), "select null").should be_nil
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db.query "select null" do |rs|
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assert_single_read? rs, typeof({{value}}), nil
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end
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end
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end
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it "executes with bind {{value.id}}" do
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with_db do |db|
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db.scalar(typeof({{value}}), %(select ?), {{value}}).should eq({{value}})
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end
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end
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it "executes with bind {{value.id}} read as nillable" do
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with_db do |db|
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db.scalar?(typeof({{value}}), %(select ?), {{value}}).should eq({{value}})
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end
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end
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it "executes with bind nil as typeof {{value.id}}" do
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with_db do |db|
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db.scalar?(typeof({{value}}), %(select ?), nil).should be_nil
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end
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end
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it "executes with bind {{value.id}} as array" do
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with_db do |db|
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db.scalar?(typeof({{value}}), %(select ?), [{{value}}]).should eq({{value}})
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end
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end
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{% end %}
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it "executes and selects blob" do
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with_db do |db|
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slice = db.scalar(Slice(UInt8), %(select X'53514C697465'))
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slice.to_a.should eq([0x53, 0x51, 0x4C, 0x69, 0x74, 0x65])
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end
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end
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it "executes with bind blob" do
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with_db do |db|
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ary = UInt8[0x53, 0x51, 0x4C, 0x69, 0x74, 0x65]
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slice = db.scalar Slice(UInt8), %(select cast(? as BLOB)), Slice.new(ary.to_unsafe, ary.size)
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slice.to_a.should eq(ary)
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end
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end
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it "executes with named bind using symbol" do
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with_db do |db|
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db.scalar(String, %(select :value), {value: "hello"}).should eq("hello")
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end
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end
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it "executes with named bind using string" do
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with_db do |db|
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db.scalar(String, %(select :value), {"value": "hello"}).should eq("hello")
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end
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end
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it "gets column count" do
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with_mem_db do |db|
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db.exec "create table person (name string, age integer)"
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db.query "select * from person" do |rs|
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rs.column_count.should eq(2)
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end
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end
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end
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it "gets column name" do
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with_mem_db do |db|
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db.exec "create table person (name string, age integer)"
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db.query "select * from person" do |rs|
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rs.column_name(0).should eq("name")
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rs.column_name(1).should eq("age")
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end
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end
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end
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it "gets column types" do
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with_mem_db do |db|
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db.exec "create table table1 (aText text, anInteger integer, aReal real, aBlob blob)"
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db.exec "insert into table1 (aText, anInteger, aReal, aBlob) values ('a', 1, 1.5, X'53')"
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# sqlite is unable to get column_type information
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# from the query itself without executing and getting
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# actual data.
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db.query "select * from table1" do |rs|
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rs.move_next
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rs.column_type(0).should eq(String)
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rs.column_type(1).should eq(Int64)
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rs.column_type(2).should eq(Float64)
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rs.column_type(3).should eq(Slice(UInt8))
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end
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end
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end
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it "gets last insert row id" do
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with_mem_db do |db|
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cnn = db.connection
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cnn.exec "create table person (name string, age integer)"
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cnn.last_insert_id.should eq(0)
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cnn.exec %(insert into person values ("foo", 10))
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cnn.last_insert_id.should eq(1)
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end
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end
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{% for value in [1, 1_i64, "hello", 1.5, 1.5_f32] %}
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it "insert/get value {{value.id}} from table" do
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with_db do |db|
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db.exec "create table table1 (col1 #{sqlite_type_for({{value}})})"
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db.exec %(insert into table1 values (#{sql({{value}})}))
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db.scalar(typeof({{value}}), "select col1 from table1").should eq({{value}})
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end
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end
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{% end %}
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it "insert/get blob value from table" do
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with_db do |db|
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ary = UInt8[0x53, 0x51, 0x4C, 0x69, 0x74, 0x65]
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db.exec "create table table1 (col1 blob)"
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db.exec %(insert into table1 values (?)), Slice.new(ary.to_unsafe, ary.size)
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slice = db.scalar(Slice(UInt8), "select col1 from table1")
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slice.to_a.should eq(ary)
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end
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end
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it "gets many rows from table" do
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with_mem_db do |db|
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db.exec "create table person (name string, age integer)"
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db.exec %(insert into person values ("foo", 10))
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db.exec %(insert into person values ("bar", 20))
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db.exec %(insert into person values ("baz", 30))
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names = [] of String
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ages = [] of Int32
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db.query "select * from person" do |rs|
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rs.each do
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names << rs.read(String)
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ages << rs.read(Int32)
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end
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end
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names.should eq(["foo", "bar", "baz"])
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ages.should eq([10, 20, 30])
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end
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end
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it "ensures statements are closed" do
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begin
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DB.open "sqlite3", DB_FILENAME do |db|
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db.exec %(create table if not exists a (i int not null, str text not null);)
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db.exec %(insert into a (i, str) values (23, "bai bai");)
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end
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2.times do |i|
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DB.open "sqlite3", DB_FILENAME do |db|
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begin
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db.query("SELECT i, str FROM a WHERE i = ?", 23) do |rs|
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rs.move_next
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break
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end
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rescue e : SQLite3::Exception
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fail("Expected no exception, but got \"#{e.message}\"")
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end
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begin
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db.exec("UPDATE a SET i = ? WHERE i = ?", 23, 23)
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rescue e : SQLite3::Exception
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fail("Expected no exception, but got \"#{e.message}\"")
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end
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end
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end
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ensure
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File.delete(DB_FILENAME)
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end
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end
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end
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