Emmanuel BENOîT
4f083830f2
* Added table that will contain the cached technology dependencies. * Implemented trigger functions that update the cache and make sure there are no cycles or redundancies in the technology graph. * The following SQL files need to be (re-)executed: -> 030-data/080-techs.sql (for the defs.techdep_cache table) -> 040-functions/026-technology-dependencies.sql (new file)
79 lines
No EOL
3.4 KiB
PL/PgSQL
79 lines
No EOL
3.4 KiB
PL/PgSQL
/*
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* Make sure that it is not possible to create redundant dependencies
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*/
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BEGIN;
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\i utils/strings.sql
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-- Make the columns we don't use in the technology definition table NULL-able
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ALTER TABLE defs.technologies
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ALTER technology_category_id DROP NOT NULL ,
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ALTER technology_discovery_id DROP NOT NULL ,
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ALTER technology_description_id DROP NOT NULL ,
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ALTER technology_price DROP NOT NULL ,
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ALTER technology_points DROP NOT NULL;
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-- Create strings to use as the technologies' names
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SELECT _create_test_strings( 3 , 'tech' );
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-- Insert the technologies
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INSERT INTO defs.technologies ( technology_name_id )
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VALUES ( _get_string( 'tech1' ) ) ,
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( _get_string( 'tech2' ) ) ,
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( _get_string( 'tech3' ) );
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-- ***** TESTS BEGIN HERE *****
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SELECT plan( 5 );
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/*
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* Assuming we have tech2 -> {tech1} and tech3 -> {tech1}, it shouldn't be
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* possible to add dependencies between tech2 and tech3.
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*/
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INSERT INTO defs.technology_dependencies ( technology_name_id , technology_name_id_depends )
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VALUES ( _get_string( 'tech2' ) , _get_string( 'tech1' ) ) ,
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( _get_string( 'tech3' ) , _get_string( 'tech1' ) );
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SELECT diag_test_name( 'defs.technology_dependencies - B -> A and C -> A, adding B -> C is redundant' );
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SELECT throws_ok( $$
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INSERT INTO defs.technology_dependencies ( technology_name_id , technology_name_id_depends )
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VALUES ( _get_string( 'tech2' ) , _get_string( 'tech3' ) );
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$$ , 23514 );
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SELECT diag_test_name( 'defs.technology_dependencies - B -> A and C -> A, adding C -> B is redundant' );
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SELECT throws_ok( $$
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INSERT INTO defs.technology_dependencies ( technology_name_id , technology_name_id_depends )
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VALUES ( _get_string( 'tech3' ) , _get_string( 'tech2' ) );
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$$ , 23514 );
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DELETE FROM defs.technology_dependencies;
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/*
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* Assuming we have tech3 -> {tech2,tech1}, trying to add a dependency
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* between tech2 and tech1 would cause a redundancy.
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*/
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INSERT INTO defs.technology_dependencies ( technology_name_id , technology_name_id_depends )
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VALUES ( _get_string( 'tech3' ) , _get_string( 'tech1' ) ) ,
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( _get_string( 'tech3' ) , _get_string( 'tech2' ) );
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SELECT diag_test_name( 'defs.technology_dependencies - C -> A and C -> B, adding A -> B is redundant' );
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SELECT throws_ok( $$
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INSERT INTO defs.technology_dependencies ( technology_name_id , technology_name_id_depends )
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VALUES ( _get_string( 'tech1' ) , _get_string( 'tech2' ) );
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$$ , 23514 );
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SELECT diag_test_name( 'defs.technology_dependencies - C -> A and C -> B, adding B -> A is redundant' );
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SELECT throws_ok( $$
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INSERT INTO defs.technology_dependencies ( technology_name_id , technology_name_id_depends )
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VALUES ( _get_string( 'tech2' ) , _get_string( 'tech1' ) );
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$$ , 23514 );
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DELETE FROM defs.technology_dependencies;
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/*
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* Assuming we have tech3 -> {tech2} and tech2 -> {tech1}, trying to add a
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* dependency from tech3 to tech1 would cause a redundancy.
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*/
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INSERT INTO defs.technology_dependencies ( technology_name_id , technology_name_id_depends )
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VALUES ( _get_string( 'tech3' ) , _get_string( 'tech2' ) ) ,
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( _get_string( 'tech2' ) , _get_string( 'tech1' ) );
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SELECT diag_test_name( 'defs.technology_dependencies - C -> B and B -> A, adding C -> A is redundant' );
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SELECT throws_ok( $$
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INSERT INTO defs.technology_dependencies ( technology_name_id , technology_name_id_depends )
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VALUES ( _get_string( 'tech3' ) , _get_string( 'tech1' ) );
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$$ , 23514 );
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DELETE FROM defs.technology_dependencies;
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SELECT * FROM finish( );
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ROLLBACK; |