library ieee;
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use ieee.std_logic_1164.all;
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use ieee.numeric_std.all;
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library osvvm;
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use osvvm.RandomPkg.all;
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library libvhdl;
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entity DictT is
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end entity DictT;
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architecture sim of DictT is
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type t_scoreboard is array (natural range <>) of std_logic_vector(7 downto 0);
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function to_string(d : string) return string is
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begin
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return d;
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end function to_string;
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package StringSlvDict is new libvhdl.DictP
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generic map (KEY_TYPE => string,
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VALUE_TYPE => std_logic_vector,
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key_to_string => to_string,
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value_to_string => to_hstring);
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use StringSlvDict.all;
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shared variable sv_dict : t_dict;
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shared variable sv_dact : t_dict;
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shared variable sv_duct : t_dict;
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begin
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DictInitP : process is
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begin
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sv_dict.init(false);
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sv_dact.init(false);
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sv_duct.init(false);
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wait;
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end process DictInitP;
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DictTestP : process is
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variable v_key : t_dict_key_ptr;
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variable v_last_key : t_dict_key_ptr;
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variable v_random : RandomPType;
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variable v_input : std_logic_vector(7 downto 0);
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variable v_output : std_logic_vector(7 downto 0);
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variable v_scoreboard : t_scoreboard(0 to 511);
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begin
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v_random.InitSeed(v_random'instance_name);
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-- check initial emptiness
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assert sv_dict.size = 0
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report "ERROR: Dict should be empty"
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severity failure;
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-- fill dictionary and check count
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report "INFO: Test 1: Fill dictionary";
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for i in 0 to 255 loop
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v_input := v_random.RandSlv(8);
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sv_dict.set(integer'image(i), v_input);
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v_scoreboard(i) := v_input;
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assert sv_dict.size = i+1
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report "ERROR: Dict should have " & to_string(i+1) & " entries"
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severity failure;
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end loop;
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report "INFO: Test successful";
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-- read all entries and check for correct data
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report "INFO: Test 2: Read dictionary";
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for i in 0 to 255 loop
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sv_dict.get(integer'image(i), v_output);
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assert v_output = v_scoreboard(i)
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report "ERROR: Got 0x" & to_hstring(v_output) & ", expected 0x" & to_hstring(v_scoreboard(i))
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severity failure;
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end loop;
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report "INFO: Test successful";
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-- overwrite a key/value pair
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report "INFO: Test 3: Overwrite a entry";
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v_input := v_random.RandSlv(8);
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sv_dict.set("128", v_input);
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v_scoreboard(128) := v_input;
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sv_dict.get("128", v_output);
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assert v_output = v_scoreboard(128)
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report "ERROR: Got 0x" & to_hstring(v_output) & ", expected 0x" & to_hstring(v_scoreboard(128))
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severity failure;
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report "INFO: Test successful";
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-- check for existing keys
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report "INFO: Test 4: Check hasKey() method";
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for i in 0 to 255 loop
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assert sv_dict.hasKey(integer'image(i))
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report "ERROR: Key" & integer'image(i) & " should exist in dictionary"
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severity failure;
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end loop;
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assert not(sv_dict.hasKey("AFFE"))
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report "ERROR: Key AFFE shouldn't exist in dictionary"
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severity failure;
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report "INFO: Test successful";
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-- iterate up over all entries
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report "INFO: Test 5: Iterate up over all entries";
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sv_dict.setIter;
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for i in 0 to 255 loop
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v_key := new string'(sv_dict.iter(UP));
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assert v_key.all = integer'image(i)
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report "ERROR: Got key " & v_key.all & ", expected " & integer'image(i)
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severity failure;
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sv_dict.get(v_key.all, v_output);
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assert v_key.all = integer'image(i) and v_output = v_scoreboard(i)
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report "ERROR: Got 0x" & to_hstring(v_output) & ", expected 0x" & to_hstring(v_scoreboard(i))
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severity failure;
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end loop;
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v_last_key := v_key;
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v_key := new string'(sv_dict.iter(UP));
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assert v_key.all = v_last_key.all
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report "ERROR: Got key " & v_key.all & ", expected key" & v_last_key.all
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severity failure;
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report "INFO: Test successful";
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-- iterate down over all entries
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report "INFO: Test 6: Iterate down over all entries";
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sv_dict.setIter(HEAD);
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for i in 255 downto 0 loop
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v_key := new string'(sv_dict.iter(DOWN));
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assert v_key.all = integer'image(i)
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report "ERROR: Got key " & v_key.all & ", expected " & integer'image(i)
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severity failure;
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sv_dict.get(v_key.all, v_output);
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assert v_key.all = integer'image(i) and v_output = v_scoreboard(i)
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report "ERROR: Got 0x" & to_hstring(v_output) & ", expected 0x" & to_hstring(v_scoreboard(i))
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severity failure;
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end loop;
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v_last_key := v_key;
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v_key := new string'(sv_dict.iter(DOWN));
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assert v_key.all = v_last_key.all
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report "ERROR: Got key " & v_key.all & ", expected key" & v_last_key.all
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severity failure;
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deallocate(v_key);
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report "INFO: Test successful";
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-- merge 2 dictionaries
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-- fill dictionary and check count
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report "INFO: Test 7: Merge dictionaries";
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for i in 256 to 511 loop
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v_input := v_random.RandSlv(8);
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sv_dact.set(integer'image(i), v_input);
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v_scoreboard(i) := v_input;
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assert sv_dact.size = i-255
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report "ERROR: Dict should have " & to_string(i-255) & " entries"
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severity failure;
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end loop;
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-- merge dictionaries
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merge(sv_dict, sv_dact, sv_duct);
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-- read all entries and check for correct data
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for i in 0 to 511 loop
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sv_duct.get(integer'image(i), v_output);
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assert v_output = v_scoreboard(i)
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report "ERROR: Got 0x" & to_hstring(v_output) & ", expected 0x" & to_hstring(v_scoreboard(i))
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severity failure;
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end loop;
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report "INFO: Test successful";
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-- Remove key/value pair from head of dictionary
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report "INFO: Test 8: Removing entry from head of dictionary";
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sv_dict.del("255");
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assert not(sv_dict.hasKey("255"))
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report "ERROR: Key 255 shouldn't exist in dictionary"
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severity failure;
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report "INFO: Test successful";
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-- Remove key/value pair from head of dictionary
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report "INFO: Test 9: Removing entry from middle of dictionary";
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sv_dict.del("127");
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assert not(sv_dict.hasKey("127"))
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report "ERROR: Key 127 shouldn't exist in dictionary"
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severity failure;
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report "INFO: Test successful";
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-- Remove key/value pair from head of dictionary
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report "INFO: Test 10: Removing entry from beginning of dictionary";
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sv_dict.del("0");
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assert not(sv_dict.hasKey("0"))
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report "ERROR: Key 0 shouldn't exist in dictionary"
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severity failure;
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report "INFO: Test successful";
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-- Remove key/value pair from head of dictionary
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report "INFO: Test 11: Clear all entries from dictionary";
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sv_dict.clear;
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assert sv_dict.size = 0
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report "ERROR: Dict should be empty"
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severity failure;
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report "INFO: Test successful";
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report "INFO: t_dict test finished successfully";
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wait;
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end process DictTestP;
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end architecture sim;
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