DROP FUNCTION IF EXISTS test_given;
CREATE FUNCTION test_given()
    RETURNS void
    LANGUAGE 'plpgsql'
VOLATILE
AS
$BODY$
BEGIN
    PERFORM hive.app_create_context( 'context' );

    INSERT INTO hive.fork( id, block_num, time_of_fork)
    VALUES ( 2, 6, '2020-06-22 19:10:25-07'::timestamp ),
           ( 3, 7, '2020-06-22 19:10:25-07'::timestamp );

    INSERT INTO hive.blocks
    VALUES
          ( 1, '\xBADD10', '\xCAFE10', '2016-06-22 19:10:21-07'::timestamp, 5, '\x4007', E'[]', '\x2157', 'STM65w' )
        , ( 2, '\xBADD20', '\xCAFE20', '2016-06-22 19:10:22-07'::timestamp, 5, '\x4007', E'[]', '\x2157', 'STM65w' )
        , ( 3, '\xBADD30', '\xCAFE30', '2016-06-22 19:10:23-07'::timestamp, 5, '\x4007', E'[]', '\x2157', 'STM65w' )
        , ( 4, '\xBADD40', '\xCAFE40', '2016-06-22 19:10:24-07'::timestamp, 5, '\x4007', E'[]', '\x2157', 'STM65w' )
    ;

    INSERT INTO hive.accounts( id, name, block_num )
    VALUES (5, 'initminer', 1)
         , (6, 'alice', 1)
         , (7, 'bob', 1)
    ;

    INSERT INTO hive.blocks_reversible
    VALUES
          ( 4, '\xBADD40', '\xCAFE40', '2016-06-22 19:10:25-07'::timestamp, 5, '\x4007', E'[]', '\x2157', 'STM65w', 1 )
        , ( 5, '\xBADD5A', '\xCAFE5A', '2016-06-22 19:10:55-07'::timestamp, 5, '\x4007', E'[]', '\x2157', 'STM65w', 1 )
        , ( 6, '\xBADD60', '\xCAFE60', '2016-06-22 19:10:26-07'::timestamp, 5, '\x4007', E'[]', '\x2157', 'STM65w', 1 )
        , ( 7, '\xBADD70', '\xCAFE70', '2016-06-22 19:10:27-07'::timestamp, 5, '\x4007', E'[]', '\x2157', 'STM65w', 2 )
        , ( 8, '\xBADD80', '\xCAFE80', '2016-06-22 19:10:28-07'::timestamp, 5, '\x4007', E'[]', '\x2157', 'STM65w', 2 )
        , ( 9, '\xBADD90', '\xCAFE90', '2016-06-22 19:10:29-07'::timestamp, 5, '\x4007', E'[]', '\x2157', 'STM65w', 2 )
        , ( 8, '\xBADD80', '\xCAFE80', '2016-06-22 19:10:30-07'::timestamp, 5, '\x4007', E'[]', '\x2157', 'STM65w', 3 )
        , ( 9, '\xBADD90', '\xCAFE90', '2016-06-22 19:10:31-07'::timestamp, 5, '\x4007', E'[]', '\x2157', 'STM65w', 3 )
        , ( 10, '\xBADD1A', '\xCAFE1A', '2016-06-22 19:10:32-07'::timestamp, 5, '\x4007', E'[]', '\x2157', 'STM65w', 3 )
    ;

    -- it is important that currently we are at first block, lower than irreversible block
    UPDATE hive.contexts SET fork_id = 2, irreversible_block = 4, current_block_num = 1;
END;
$BODY$
;

DROP FUNCTION IF EXISTS test_when;
CREATE FUNCTION test_when()
    RETURNS void
    LANGUAGE 'plpgsql'
VOLATILE
AS
$BODY$
BEGIN
    PERFORM hive.app_context_detach( 'context' );
END
$BODY$
;

DROP FUNCTION IF EXISTS test_then;
CREATE FUNCTION test_then()
    RETURNS void
    LANGUAGE 'plpgsql'
STABLE
AS
$BODY$
BEGIN
    ASSERT EXISTS ( SELECT FROM information_schema.tables WHERE table_schema='hive' AND table_name='context_blocks_view' ), 'No context blocks view';

    ASSERT NOT EXISTS (
        SELECT * FROM hive.context_blocks_view
        EXCEPT SELECT * FROM ( VALUES
                   (1, '\xBADD10', '\xCAFE10', '2016-06-22 19:10:21-07'::timestamp, 5, '\x4007'::bytea, '[]'::jsonb, '\x2157'::bytea, 'STM65w')
                 , (2, '\xBADD20'::bytea, '\xCAFE20'::bytea, '2016-06-22 19:10:22-07'::timestamp, 5, '\x4007'::bytea, '[]'::jsonb, '\x2157'::bytea, 'STM65w')
                 , (3, '\xBADD30'::bytea, '\xCAFE30'::bytea, '2016-06-22 19:10:23-07'::timestamp, 5, '\x4007'::bytea, '[]'::jsonb, '\x2157'::bytea, 'STM65w')
                 , (4, '\xBADD40'::bytea, '\xCAFE40'::bytea, '2016-06-22 19:10:24-07'::timestamp, 5, '\x4007'::bytea, '[]'::jsonb, '\x2157'::bytea, 'STM65w')
                 ) as pattern
    ), 'Unexpected rows in the view';

    ASSERT ( SELECT COUNT(*) FROM hive.context_blocks_view ) = 4, 'Not all rows are visible';
END
$BODY$
;




