237 lines
7.1 KiB
Perl
237 lines
7.1 KiB
Perl
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% HELPERS
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% plunit is a Prolog unit-test framework initially developed for SWI-Prolog
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:- use_module(library(plunit)).
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:- discontiguous test/2.
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% Run the tests.
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test :-
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run_tests(sql).
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% 'clean' drop: call drop/1 and swallow any thrown exceptions
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cdrop(Table) :-
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catch(drop(Table), _, true).
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% Checks that two lists have the same content.
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same_content(L1, L2) :-
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msort(L1, S),
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msort(L2, S).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% TESTS
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:- begin_tests(sql).
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% Test if create/1 works.
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test(create_table, cleanup(cdrop(foo))) :-
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create_table(foo, [bar, baz]),
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tables(Tables),
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member(foo, Tables), !.
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% Test if create/1 throws an error on dup table name.
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test(create_redundant, [throws(_), cleanup(cdrop(foo))]) :-
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create_table(foo, [bar, baz]),
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create_table(foo, [bab, bac]).
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% Test if the columns are properly recorded.
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test(cols, cleanup(cdrop(foo))) :-
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create_table(foo, [baru, bazu]),
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cols(foo, Cols),
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assertion(Cols == [baru, bazu]).
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% Test if drop/1 works.
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test(drop) :-
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create_table(foo, [bar, baz]),
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drop(foo), !,
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tables(Tables),
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\+ member(foo, Tables).
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% Test if drop/1 throws an error on unknown table name.
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test(drop_inexistant, throws(_)) :-
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drop(foobar).
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% Test if row/2 returns the different rows of a given table.
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test(rows, cleanup(cdrop(foo))) :-
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create_table(foo, [bar, baz]),
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insert(foo, [1, 2]),
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insert(foo, [3, 4]),
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rows(foo, Rows),
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assertion(length(Rows,2)).
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% Test if row/2 fails on an unknown table name.
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test(row_inexistant, throws(_)) :-
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rows(foo, _Row).
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% Test if rows/1 works when called for a given table name.
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test(rows, cleanup(cdrop(foo))) :-
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create_table(foo, [bar, baz]),
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insert(foo, [1, 2]),
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insert(foo, [3, 4]),
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rows(foo).
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% Test if rows/1 throws an error on unknown table name.
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test(rows_inexistant, throws(_)) :-
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rows(foo).
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% Simple insert/2 & selec/4 test.
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test(insert2, cleanup(cdrop(foo))) :-
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create_table(foo, [bar, baz]),
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insert(foo, [1, 2]),
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%selec(foo, *, [], X/Y), !,
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selec(foo, *, X/Y), !,
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assertion(X == [+bar, +baz]),
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assertion(Y == [1, 2]),
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insert(foo, [3, 4]),
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findall(Z, selec(foo, *, [], _/Z), Zs), !,
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assertion(Zs == [[1,2],[3,4]]).
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% Test if insert/2 throws an error on unknown table name.
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test(insert_inexistant, throws(_)) :-
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insert(foo, [1, 2]).
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% Simple delete/1 test.
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test(delete1, cleanup(cdrop(foo))) :-
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create_table(foo, [bar, baz]),
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insert(foo, [1, 2]),
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insert(foo, [3, 4]),
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delete(foo),
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findall(Z, selec(foo, *, [], _/Z), Zs),
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assertion(Zs == []),
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tables(Tables),
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member(foo, Tables).
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% Simple delete/2 test.
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test(delete2, cleanup(cdrop(foo))) :-
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create_table(foo, [bar, baz]),
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insert(foo, [1, 2]),
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insert(foo, [3, 4]),
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delete(foo, [+bar = 1]),
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findall(Z, selec(foo, *, [], _/Z), Zs),
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assertion(Zs == [[3, 4]]).
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% Another simple delete/2 test.
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test(delete2bis, cleanup(cdrop(foo))) :-
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create_table(foo, [bar, baz]),
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insert(foo, [1, 2]),
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insert(foo, [3, 4]),
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delete(foo, [+bar >= 1]),
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findall(Z, selec(foo, *, [], _/Z), Zs),
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assertion(Zs == []).
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% Test delete/2 using multiple conditions.
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test(delete2_mult, cleanup(cdrop(foo))) :-
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create_table(foo, [bar, baz]),
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insert(foo, [1, 2]),
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insert(foo, [3, 4]),
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delete(foo, [+bar = 1, +baz = 2]),
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findall(Z, selec(foo, *, [], _/Z), Zs),
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assertion(Zs == [[3, 4]]).
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% Another test of delete/2 using multiple conditions.
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test(delete2_mult_bis, cleanup(cdrop(foo))) :-
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create_table(foo, [bar, baz]),
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insert(foo, [1, 2]),
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insert(foo, [3, 4]),
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delete(foo, [+bar > 1, +baz < 2]),
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findall(Z, selec(foo, *, [], _/Z), Zs),
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assertion(Zs == [[1, 2],[3,4]]).
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% Test selec/4 with a single condition +col condition.
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test(selec_cond1) :-
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selec(persons, *, [+id = 0], _/Row1), !,
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assertion(Row1 == [0, "Jeffrey", "Bowman", 30, "Daytona Beach"]),
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selec(persons, *, [+first = "Lorena"], _/Row2), !,
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assertion(Row2 == [1, "Lorena", "Michaels", 50, "Boardman"]).
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% Test selec/4 with two +col conditions.
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test(selec_cond_mult1) :-
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selec(persons, *, [+age = 47, +city = "Atlanta"], _/Row), !,
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assertion(Row == [11, "Betty", "Strickland", 47, "Atlanta"]).
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% Test selec/4 with a single projection and no conditions.
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test(selec_proj) :-
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findall(Row, selec(persons, [+first], [], _/Row), Rows0),
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flatten(Rows0, Rows),
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assertion(Rows == ["Jeffrey", "Lorena", "Joseph", "Stewart", "Thomas",
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"Tameka", "Annette", "David", "Anthony", "Lindsay", "Claudette", "Betty",
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"Richard", "Robert", "Candace", "Sandra"]).
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% Test selec/4 with projections and a condition.
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test(selec_mult_proj) :-
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findall(Row, selec(persons, [+first, +last], [+age >= 70], _/Row), Rows),
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same_content(Rows, [
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["Stewart", "Sullivan"],
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["Thomas", "Marshall"],
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["Lindsay", "Faught"]]).
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% Test that drop/1 correctly removes rows.
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test(drop_implem, cleanup(cdrop(foo))) :-
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create_table(foo, [bar, baz]),
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insert(foo, [1, 2]),
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drop(foo),
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create_table(foo, [bar, baz]),
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findall(Z, selec(foo, *, [], _/Z), Zs), !,
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assertion(Zs == []).
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% Test that tables/1 works.
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test(tables, cleanup((cdrop(foo), cdrop(bar), cdrop(baz)))) :-
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create_table(foo, []),
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create_table(bar, []),
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create_table(baz, []),
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drop(bar),
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tables(Tables),
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member(foo, Tables), !,
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member(baz, Tables), !,
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\+ member(bar, Tables), !.
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% Test that insert/2 throws an error on unknown table name.
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test(insert_inexistant, throws(_)) :-
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insert(foobar, [1, 2]).
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% Test that insert/2 throws an error if it is supplied too few values.
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test(insert_count1, [throws(_), cleanup(drop(foo))]) :-
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create_table(foo, [bar, baz]),
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insert(foo, [1]).
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% Test that insert/2 throws an error if it is supplied too many values.
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test(insert_count2, [throws(_), cleanup(drop(foo))]) :-
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create_table(foo, [bar, baz]),
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insert(foo, [1, 2, 3]).
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% Tests that delete/1 throws an error on unknown table name.
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test(delete_inexistant1, throws(_)) :-
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delete(foobar).
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% Tests that delete/2 throws an error on unknown table name.
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test(delete_inexistant2, throws(_)) :-
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delete(foobar, []).
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% Simple delete/2 test using the +<column>.
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test(delete2_1, cleanup(drop(foo))) :-
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create_table(foo, [bar, baz]),
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insert(foo, [1, 2]),
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insert(foo, [3, 4]),
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delete(foo, [+baz = 4]),
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findall(Z, selec(foo, *, [], _/Z), Zs),
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assertion(Zs == [[1, 2]]).
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% delete/2 test using mixed notations.
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test(delete2_2, cleanup(drop(foo))) :-
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create_table(foo, [bar, baz]),
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insert(foo, [1, 2]),
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insert(foo, [3, 4]),
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insert(foo, [3, 5]),
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delete(foo, [+bar = 3, +baz = 4]),
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findall(Z, selec(foo, *, [], _/Z), Zs),
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assertion(Zs == [[1, 2], [3, 5]]).
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% Test selec/4 with a projection and multiple conditions.
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test(selec_mult_cond) :-
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findall(Row, selec(persons, [+first, +last],
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[+age >= 60, +city = "Atlanta"], _/Row), Rows),
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same_content(Rows, [["Robert", "Evans"]]).
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% ==============================================================================
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