shithub: mc

ref: f1c2aa0d83a485ac3506d007263631a0e338da4d
dir: /lib/iter/test/chunk.myr/

use std
use testr

use iter

const main = {
	testr.run([
		[.name = "bychunk-01", .fn = bychunk01],
		[.name = "bychunk-02", .fn = bychunk02],
		[.name = "bychunk-03", .fn = bychunk03],
		[.name = "bychunk-04", .fn = bychunk04],
		[.name = "bychunk-05", .fn = bychunk05],
	][:])
}

const verify_bychunk = {c, v, n, e
	var sb : std.strbuf# = std.mksb()
	std.sbfmt(sb, " ")
	for w : iter.bychunk(v, n)
		std.sbfmt(sb, "{} ", w)
	;;
	var a : byte[:] = std.sbfin(sb)
	testr.check(c, std.eq(e, a), "expected “{}”, got “{}”", e, a)
}

const bychunk01 = {c
	verify_bychunk(c, [1, 2, 3, 4][:], 1, " [1] [2] [3] [4] ")
}

const bychunk02 = {c
	verify_bychunk(c, [1, 2, 3, 4, 5, 6, 7, 8][:], 3, " [1, 2, 3] [4, 5, 6] [7, 8] ")
}

const bychunk03 = {c
	verify_bychunk(c, [1, 2, 3, 4][:], 99, " [1, 2, 3, 4] ")
}

const bychunk04 = {c
	verify_bychunk(c, [1, 2, 3, 4][:], -2, " [1] [2] [3] [4] ")
}

const bychunk05 = {c
	verify_bychunk(c, [][:], 3, " ")
}