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require_relative "spec_helper"
describe "primary_key_lookup_check_values plugin" do
int_pk_schema = {:id=>{:primary_key=>true, :type=>:integer, :min_value=>0, :max_value=>10}.freeze}.freeze
def model(schema)
fetch = {}
schema.keys.each_with_index{|k,i| fetch[k] = i+1}
db = Sequel.mock(:fetch=>fetch)
schema = schema.to_a
db.define_singleton_method(:schema){|*| schema}
def db.supports_schema_parsing?; true end
c = Class.new(Sequel::Model(db[:a]))
c.plugin :primary_key_lookup_check_values
db.sqls
c
end
it "should be loadable on a model class without a dataset" do
db = model(int_pk_schema).db
c = Class.new(Sequel::Model(db))
c.plugin :primary_key_lookup_check_values
c.dataset = :a
c.db.sqls
c['1'].must_equal c.load(:id=>1)
db.sqls.must_equal ["SELECT * FROM a WHERE id = 1"]
end
it "should work in subclasses" do
c = Class.new(model(int_pk_schema))
c.db.sqls
c['1'].must_equal c.load(:id=>1)
c.db.sqls.must_equal ["SELECT * FROM a WHERE id = 1"]
c.dataset = Sequel.mock(:fetch=>{:id=>1})[:a]
c.db.sqls
c['1'].must_equal c.load(:id=>1)
c.db.sqls.must_equal ["SELECT * FROM a WHERE id = '1'"]
end
it "should handle lookup for single primary key if database type is not known" do
c = model(:id=>{:primary_key=>true})
c['1'].must_equal c.load(:id=>1)
c.db.sqls.must_equal ["SELECT * FROM a WHERE id = '1'"]
end
it "should handle lookup for single primary key when value can be type checked but not value checked" do
c = model(:id=>{:primary_key=>true, :type=>:integer})
c['1'].must_equal c.load(:id=>1)
c.db.sqls.must_equal ["SELECT * FROM a WHERE id = 1"]
end
it "should handle lookup for composite primary key if no columns can be type checked" do
c = model(:id1=>{:primary_key=>true}, :id2=>{:primary_key=>true})
c[['1', '2']].must_equal c.load(:id1=>1, :id2=>2)
c.db.sqls.must_equal ["SELECT * FROM a WHERE ((id1 = '1') AND (id2 = '2')) LIMIT 1"]
end
it "should handle lookup for composite primary key where only a subset of columns can be type checked" do
c = model(:id1=>{:primary_key=>true, :type=>:integer}, :id2=>{:primary_key=>true})
c[['a', '2']].must_be_nil
c.db.sqls.must_equal []
c[['1', '2']].must_equal c.load(:id1=>1, :id2=>2)
c.db.sqls.must_equal ["SELECT * FROM a WHERE ((id1 = 1) AND (id2 = '2')) LIMIT 1"]
end
it "should handle lookup for composite primary key where only a subset of columns can be type checked and value checked" do
c = model(:id1=>{:primary_key=>true, :type=>:integer, :min_value=>0, :max_value=>10}, :id2=>{:primary_key=>true})
c[['a', '2']].must_be_nil
c.db.sqls.must_equal []
c[['12', '2']].must_be_nil
c.db.sqls.must_equal []
c[['1', '2']].must_equal c.load(:id1=>1, :id2=>2)
c.db.sqls.must_equal ["SELECT * FROM a WHERE ((id1 = 1) AND (id2 = '2')) LIMIT 1"]
end
it "should handle lookup for composite primary key where only a subset of columns can be value checked" do
c = model(:id1=>{:primary_key=>true, :type=>:integer, :min_value=>0, :max_value=>10}, :id2=>{:primary_key=>true, :type=>:integer})
c[['a', '2']].must_be_nil
c.db.sqls.must_equal []
c[['12', '2']].must_be_nil
c.db.sqls.must_equal []
c[['1', '2']].must_equal c.load(:id1=>1, :id2=>2)
c.db.sqls.must_equal ["SELECT * FROM a WHERE ((id1 = 1) AND (id2 = 2)) LIMIT 1"]
end
describe "with single pk with type and value" do
before do
@c = model(int_pk_schema)
@c.db.sqls
end
it "should work when setting the dataset for an existing class" do
@c.dataset = :b
@c.db.sqls
@c['1'].must_equal @c.load(:id=>1)
@c.db.sqls.must_equal ["SELECT * FROM b WHERE id = 1"]
end
it "should skip query when nil is given" do
@c[nil].must_be_nil
@c.db.sqls.must_equal []
end
it "should skip query for single primary key with array value" do
@c[[1]].must_be_nil
@c.db.sqls.must_equal []
end
it "should skip query for single primary key when typecasting fails" do
@c['a'].must_be_nil
@c.db.sqls.must_equal []
end
it "should skip query for single primary key when value check fails" do
@c[12].must_be_nil
@c[-1].must_be_nil
@c.db.sqls.must_equal []
end
it "should handle lookup for single primary key when value can be type and value checked" do
@c['1']
@c.db.sqls.must_equal ["SELECT * FROM a WHERE id = 1"]
end
it "should handle lookup when given value is a symbol" do
@c[:b]
@c.db.sqls.must_equal ["SELECT * FROM a WHERE id = b"]
end
it "should handle lookup when given value is an literal string" do
@c[Sequel.lit('b')]
@c.db.sqls.must_equal ["SELECT * FROM a WHERE id = b"]
end
it "should handle lookup when given value is an SQL expression" do
@c[Sequel.identifier('b')]
@c.db.sqls.must_equal ["SELECT * FROM a WHERE id = b"]
end
it "should affect Model.with_pk lookups" do
@c.with_pk(nil).must_be_nil
@c.db.sqls.must_equal []
@c.with_pk('1').must_equal @c.load(:id=>1)
@c.db.sqls.must_equal ["SELECT * FROM a WHERE id = 1"]
end
it "should affect Model.with_pk! lookups" do
proc{@c.with_pk!(nil)}.must_raise Sequel::NoMatchingRow
@c.db.sqls.must_equal []
@c.with_pk!('1').must_equal @c.load(:id=>1)
@c.db.sqls.must_equal ["SELECT * FROM a WHERE id = 1"]
end
it "should affect Model Dataset#[] lookups with integers" do
@c.dataset[12].must_be_nil
@c.db.sqls.must_equal []
@c.dataset[1].must_equal @c.load(:id=>1)
@c.db.sqls.must_equal ["SELECT * FROM a WHERE (a.id = 1) LIMIT 1"]
end
it "should affect Model Dataset#with_pk lookups" do
@c.dataset.with_pk(nil).must_be_nil
@c.db.sqls.must_equal []
@c.dataset.with_pk('1').must_equal @c.load(:id=>1)
@c.db.sqls.must_equal ["SELECT * FROM a WHERE (a.id = 1) LIMIT 1"]
end
it "should affect Model Dataset#with_pk! lookups" do
proc{@c.dataset.with_pk!(nil)}.must_raise Sequel::NoMatchingRow
@c.db.sqls.must_equal []
@c.dataset.with_pk!('1').must_equal @c.load(:id=>1)
@c.db.sqls.must_equal ["SELECT * FROM a WHERE (a.id = 1) LIMIT 1"]
end
end
describe "with composite pk with type and value for all columns" do
comp_pk_schema = {
:id1=>{:primary_key=>true, :type=>:integer, :min_value=>0, :max_value=>10}.freeze,
:id2=>{:primary_key=>true, :type=>:integer, :min_value=>12, :max_value=>20}.freeze
}.freeze
before do
@ds = model(comp_pk_schema).dataset
end
it "should skip query for composite primary key with non-array value" do
@ds.with_pk(1).must_be_nil
@ds.db.sqls.must_equal []
end
it "should skip query for composite primary key with incorrect array value size" do
@ds.with_pk([1]).must_be_nil
@ds.with_pk([1, 2, 3]).must_be_nil
@ds.db.sqls.must_equal []
end
it "should skip query for composite primary key with nil value" do
@ds.with_pk([nil, nil]).must_be_nil
@ds.with_pk([nil, 14]).must_be_nil
@ds.with_pk([1, nil]).must_be_nil
@ds.db.sqls.must_equal []
end
it "should skip query for composite primary key where typecasting fails for any value" do
@ds.with_pk(['a', 'a']).must_be_nil
@ds.with_pk(['a', 14]).must_be_nil
@ds.with_pk([1, 'a']).must_be_nil
@ds.db.sqls.must_equal []
end
it "should skip query for composite primary key where where value check fails for any value" do
@ds.with_pk([-1, 5]).must_be_nil
@ds.with_pk([5, 5]).must_be_nil
@ds.with_pk([5, 25]).must_be_nil
@ds.with_pk([-1, 14]).must_be_nil
@ds.with_pk([11, 14]).must_be_nil
@ds.db.sqls.must_equal []
end
it "should handle lookup for composite primary key when all values can be type and value checked" do
@ds.with_pk(['5', '15']).must_equal @ds.model.load(:id1=>1, :id2=>2)
@ds.db.sqls.must_equal ["SELECT * FROM a WHERE ((a.id1 = 5) AND (a.id2 = 15)) LIMIT 1"]
end
end
end
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