Behavior of cached database is now covered by a few tests.
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108
spec/cached.cr
108
spec/cached.cr
@ -2,35 +2,25 @@ require "spec"
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require "file_utils"
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require "../src/dodb.cr"
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require "./spec-database.cr"
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require "./test-data.cr"
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class DODB::SpecDataBase < DODB::CachedDataBase(Ship)
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def initialize(storage_ext = "", remove_previous_data = true)
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storage_dir = "test-storage#{storage_ext}"
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if remove_previous_data
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::FileUtils.rm_rf storage_dir
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end
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super storage_dir
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end
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end
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describe "DODB::DataBase::Cached" do
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describe "DODB::CachedDataBase" do
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describe "basics" do
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it "store and get data" do
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db = DODB::SpecDataBase.new
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db = DODB::CachedSpecDataBase(Ship).new
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Ship.all_ships.each do |ship|
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db << ship
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end
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db.to_a.sort.should eq(Ship.all_ships.sort)
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db.rm_storage_dir
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end
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it "rewrite already stored data" do
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db = DODB::SpecDataBase.new
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db = DODB::CachedSpecDataBase(Ship).new
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ship = Ship.all_ships[0]
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key = db << ship
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@ -39,10 +29,12 @@ describe "DODB::DataBase::Cached" do
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db[key] = ship
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db[key].should eq(ship)
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db.rm_storage_dir
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end
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it "properly remove data" do
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db = DODB::SpecDataBase.new
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db = DODB::CachedSpecDataBase(Ship).new
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Ship.all_ships.each do |ship|
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db << ship
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@ -60,23 +52,28 @@ describe "DODB::DataBase::Cached" do
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db[i]?.should be_nil
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end
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db.rm_storage_dir
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end
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it "preserves data on reopening" do
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db1 = DODB::SpecDataBase.new
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db1 = DODB::CachedSpecDataBase(Ship).new
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db1 << Ship.kisaragi
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db1.to_a.size.should eq(1)
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db2 = DODB::SpecDataBase.new remove_previous_data: false
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db2 = DODB::CachedSpecDataBase(Ship).new remove_previous_data: false
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db2 << Ship.mutsuki
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# Only difference with DODB::DataBase: for now, concurrent DB cannot coexists.
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# Only difference with DODB::DataBase: concurrent DB cannot coexists.
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db2.to_a.size.should eq(2)
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db1.rm_storage_dir
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db2.rm_storage_dir
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end
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it "iterates in normal and reversed order" do
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db = DODB::SpecDataBase.new
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db = DODB::CachedSpecDataBase(Ship).new
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Ship.all_ships.each do |ship|
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db << ship
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@ -93,10 +90,12 @@ describe "DODB::DataBase::Cached" do
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# Actual reversal is tested here.
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db.to_a(reversed: true).should eq db.to_a.reverse
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db.rm_storage_dir
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end
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it "respects the provided offsets if any" do
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db = DODB::SpecDataBase.new
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db = DODB::CachedSpecDataBase(Ship).new
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Ship.all_ships.each do |ship|
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db << ship
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@ -109,12 +108,14 @@ describe "DODB::DataBase::Cached" do
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db.to_a(start_offset: 0, end_offset: 2).should eq [
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Ship.mutsuki, Ship.kisaragi, Ship.yayoi
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]
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db.rm_storage_dir
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end
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end
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describe "indices" do
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it "do basic indexing" do
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db = DODB::SpecDataBase.new
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db = DODB::CachedSpecDataBase(Ship).new
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db_ships_by_name = db.new_index "name", &.name
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@ -125,10 +126,12 @@ describe "DODB::DataBase::Cached" do
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Ship.all_ships.each_with_index do |ship|
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db_ships_by_name.get?(ship.name).should eq(ship)
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end
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db.rm_storage_dir
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end
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it "raise on index overload" do
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db = DODB::SpecDataBase.new
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db = DODB::CachedSpecDataBase(Ship).new
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db_ships_by_name = db.new_index "name", &.name
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@ -139,10 +142,12 @@ describe "DODB::DataBase::Cached" do
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expect_raises(DODB::IndexOverload) do
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db << Ship.kisaragi
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end
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db.rm_storage_dir
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end
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it "properly deindex" do
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db = DODB::SpecDataBase.new
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db = DODB::CachedSpecDataBase(Ship).new
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db_ships_by_name = db.new_index "name", &.name
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@ -157,10 +162,12 @@ describe "DODB::DataBase::Cached" do
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Ship.all_ships.each do |ship|
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db_ships_by_name.get?(ship.name).should be_nil
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end
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db.rm_storage_dir
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end
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it "properly reindex" do
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db = DODB::SpecDataBase.new
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db = DODB::CachedSpecDataBase(Ship).new
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db_ships_by_name = db.new_index "name", &.name
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@ -175,10 +182,12 @@ describe "DODB::DataBase::Cached" do
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db[key].should eq(some_new_ship)
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db_ships_by_name.get?(some_new_ship.name).should eq(some_new_ship)
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db.rm_storage_dir
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end
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it "properly updates" do
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db = DODB::SpecDataBase.new
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db = DODB::CachedSpecDataBase(Ship).new
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db_ships_by_name = db.new_index "name", &.name
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@ -195,12 +204,14 @@ describe "DODB::DataBase::Cached" do
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db_ships_by_name.get?("Kisaragi").should be_nil
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db_ships_by_name.get?(new_kisaragi.name).should eq new_kisaragi
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db.rm_storage_dir
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end
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end
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describe "partitions" do
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it "do basic partitioning" do
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db = DODB::SpecDataBase.new
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db = DODB::CachedSpecDataBase(Ship).new
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db_ships_by_class = db.new_partition "class", &.klass
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@ -224,11 +235,13 @@ describe "DODB::DataBase::Cached" do
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}.should be_true
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end
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db_ships_by_class.get("does-not-exist").should eq [] of Ship
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db_ships_by_class.get?("does-not-exist").should be_nil
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db.rm_storage_dir
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end
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it "removes select elements from partitions" do
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db = DODB::SpecDataBase.new
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db = DODB::CachedSpecDataBase(Ship).new
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db_ships_by_class = db.new_partition "class", &.klass
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@ -243,12 +256,14 @@ describe "DODB::DataBase::Cached" do
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partition.any?(&.name.==("Kisaragi")).should be_false
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end
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db.rm_storage_dir
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end
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end
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describe "tags" do
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it "do basic tagging" do
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db = DODB::SpecDataBase.new
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db = DODB::CachedSpecDataBase(Ship).new
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db_ships_by_tags = db.new_tags "tags", &.tags
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@ -265,11 +280,13 @@ describe "DODB::DataBase::Cached" do
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.should be_true
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# There shouldn’t be one in our data about WWII Japanese warships…
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db_ships_by_tags.get("starship").should eq([] of Ship)
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db_ships_by_tags.get?("starship").should be_nil
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db.rm_storage_dir
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end
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it "properly removes tags" do
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db = DODB::SpecDataBase.new
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db = DODB::CachedSpecDataBase(Ship).new
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db_ships_by_tags = db.new_tags "tags", &.tags
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@ -278,7 +295,8 @@ describe "DODB::DataBase::Cached" do
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end
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# Removing the “flagship” tag, brace for impact.
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flagship, index = db_ships_by_tags.get_with_indices("flagship")[0]
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flagship, index = db_ships_by_tags.get_with_indice("flagship")[0]
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flagship = flagship.clone
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flagship.tags = [] of String
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db[index] = flagship
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@ -290,10 +308,12 @@ describe "DODB::DataBase::Cached" do
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# end
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db_ships_by_tags.get("flagship").should eq([] of Ship)
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db.rm_storage_dir
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end
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it "gets items that have multiple tags" do
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db = DODB::SpecDataBase.new
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db = DODB::CachedSpecDataBase(Ship).new
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db_ships_by_tags = db.new_tags "tags", &.tags
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@ -309,12 +329,14 @@ describe "DODB::DataBase::Cached" do
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results = db_ships_by_tags.get(["flagship"])
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results.should eq([Ship.yamato])
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db.rm_storage_dir
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end
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end
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describe "atomic operations" do
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it "safe_get and safe_get?" do
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db = DODB::SpecDataBase.new
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db = DODB::CachedSpecDataBase(Ship).new
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db_ships_by_name = db.new_index "name", &.name
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@ -331,12 +353,14 @@ describe "DODB::DataBase::Cached" do
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results.should eq(ship)
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end
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end
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db.rm_storage_dir
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end
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end
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describe "tools" do
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it "rebuilds indexes" do
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db = DODB::SpecDataBase.new
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db = DODB::CachedSpecDataBase(Ship).new
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db_ships_by_name = db.new_index "name", &.name
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db_ships_by_class = db.new_partition "class", &.klass
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@ -352,11 +376,12 @@ describe "DODB::DataBase::Cached" do
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db_ships_by_name.get?(ship.name).should eq(ship)
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db_ships_by_class.get(ship.klass).should contain(ship)
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end
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db.rm_storage_dir
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end
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it "migrates properly" do
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::FileUtils.rm_rf "test-storage-migration-origin"
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old_db = DODB::DataBase(PrimitiveShip).new "test-storage-migration-origin"
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old_db = DODB::CachedSpecDataBase(PrimitiveShip).new "-migration-origin"
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old_ships_by_name = old_db.new_index "name", &.name
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old_ships_by_class = old_db.new_partition "class", &.class_name
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@ -368,7 +393,7 @@ describe "DODB::DataBase::Cached" do
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# At this point, the “old” DB is filled. Now we need to convert
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# to the new DB.
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new_db = DODB::SpecDataBase.new "-migration-target"
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new_db = DODB::CachedSpecDataBase(Ship).new "-migration-target"
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new_ships_by_name = new_db.new_index "name", &.name
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new_ships_by_class = new_db.new_partition "class", &.klass
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@ -396,6 +421,9 @@ describe "DODB::DataBase::Cached" do
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ship.tags.any?(&.==("name ship")).should be_true if ship.name == ship.klass
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end
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old_db.rm_storage_dir
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new_db.rm_storage_dir
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end
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end
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end
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@ -215,7 +215,7 @@ describe "DODB::DataBase" do
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}.should be_true
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end
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db_ships_by_class.get?("does-not-exist").should eq nil
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db_ships_by_class.get?("does-not-exist").should be_nil
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end
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it "removes select elements from partitions" do
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@ -256,7 +256,7 @@ describe "DODB::DataBase" do
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.should be_true
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# There shouldn’t be one in our data about WWII Japanese warships…
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db_ships_by_tags.get?("starship").should eq nil
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db_ships_by_tags.get?("starship").should be_nil
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end
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it "properly removes tags" do
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