tyess: tests/move-gen.typ (87a9bef)

Oleksandr Smirnov only export chess as part of public api; merge moves.typ and rules.typ, 27 days ago

1	#import "../rules.typ": generate-moves-for
2	#import "../board.typ": starting-grid
3	#import "testutil.typ": assert-eq
4
5	// king, no moves in starting position
6	#assert-eq(generate-moves-for(starting-grid, 5, 8, "white").len(), 0)
7
8	// pawn e2 → e3, e4
9	#let pmoves = generate-moves-for(starting-grid, 5, 7, "white")
10	#assert(pmoves.len() >= 2)
11	#assert-eq(pmoves.at(0), (5, 6))
12	#assert-eq(pmoves.at(1), (5, 5))
13
14	// knight b1 → a3, c3
15	#let km = generate-moves-for(starting-grid, 2, 8, "white")
16	#assert-eq(km.len(), 2)
17	#assert-eq(km.at(0), (1, 6))
18	#assert-eq(km.at(1), (3, 6))
19
20	// en passant: white pawn on a4 with ep = b6
21	#let ep-grid = (
22	(".", ".", ".", ".", ".", ".", ".", "."),
23	(".", ".", ".", ".", ".", ".", ".", "."),
24	(".", ".", ".", ".", ".", ".", ".", "."),
25	(".", "p", ".", ".", ".", ".", ".", "."),
26	("P", ".", ".", ".", ".", ".", ".", "."),
27	(".", ".", ".", ".", ".", ".", ".", "."),
28	(".", ".", ".", ".", ".", ".", ".", "."),
29	(".", ".", ".", ".", ".", ".", ".", "."),
30	)
31	#let epm = generate-moves-for(ep-grid, 1, 5, "white", ep: (2, 3))
32	#let found = false
33	#for m in epm { if m.at(0) == 2 and m.at(1) == 3 { found = true; break } }
34	#assert(found)