Behavior of cached database is now covered by a few tests.

toying-with-ramdb
Philippe PITTOLI 2024-05-10 00:06:31 +02:00
parent c475c4f584
commit 5ce24184be
2 changed files with 70 additions and 42 deletions

View File

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

View File

@ -215,7 +215,7 @@ describe "DODB::DataBase" do
}.should be_true
end
db_ships_by_class.get?("does-not-exist").should eq nil
db_ships_by_class.get?("does-not-exist").should be_nil
end
it "removes select elements from partitions" do
@ -256,7 +256,7 @@ describe "DODB::DataBase" do
.should be_true
# There shouldnt be one in our data about WWII Japanese warships…
db_ships_by_tags.get?("starship").should eq nil
db_ships_by_tags.get?("starship").should be_nil
end
it "properly removes tags" do