Fixes a possible issue with DB reopening.
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parent
6dd5fc4637
commit
603a65c6f4
19
spec/test.cr
19
spec/test.cr
@ -30,9 +30,10 @@ class Ship
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# and can easily be extended.
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class_getter kisaragi = Ship.new("Kisaragi", "Mutsuki")
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class_getter mutsuki = Ship.new("Mutsuki", "Mutsuki", tags: ["name ship"])
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class_getter destroyers = [
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@@kisaragi,
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Ship.new("Mutsuki", "Mutsuki", tags: ["name ship"]),
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@@mutsuki,
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Ship.new("Yayoi", "Mutsuki"),
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Ship.new("Uzuki", "Mutsuki"),
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Ship.new("Satsuki", "Mutsuki"),
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@ -89,10 +90,12 @@ class PrimitiveShip
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end
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class DODB::SpecDataBase < DODB::DataBase(Ship)
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def initialize(storage_ext = "")
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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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@ -142,6 +145,18 @@ describe "DODB::DataBase" do
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db[i]?.should be_nil
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end
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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 << 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 << Ship.mutsuki
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db1.to_a.size.should eq(2)
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end
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end
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describe "indices" do
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@ -9,8 +9,12 @@ class DODB::DataBase(V)
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def initialize(@directory_name : String)
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Dir.mkdir_p data_path
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begin
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self.last_index
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rescue
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self.last_index = -1
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end
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end
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private def index_file
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"#{@directory_name}/last-index"
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@ -21,7 +25,7 @@ class DODB::DataBase(V)
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def last_index=(x : Int32)
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file = File.open(index_file, "w")
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file << stringify_key(x)
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file << x.to_s
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file.close
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