ref: 227937428a714a63f5c307f3dfd1b6a9a490c28a
dir: /lib/testr/testr.myr/
use std
pkg testr =
	type ctx = struct
		ok	: bool
		reason	: byte[:]
		jmpbuf	: std.jmpbuf#
	;;
	type spec = struct
		name	: byte[:]
		fn	: (ctx : ctx# -> void)
	;;
	const run	: (specs : spec[:] -> void)
	const ok	: (ctx : ctx# -> void)
	const fail	: (ctx : ctx#, msg : byte[:], args : ... -> void)
	const check	: (ctx : ctx#, cond : bool, msg : byte[:], args : ... -> void)
	const softfail	: (ctx : ctx#, msg : byte[:], args : ... -> void)
;;
const run = {specs
	std.put("MTEST {}\n", specs.len)
	for s in specs
		runspec(&s)
	;;
}
const ok = {ctx
	/* nothing to do here */
}
const check = {ctx, cond, msg, args
	var ap
	
	if !cond
		ap = std.vastart(&args)
		failv(ctx, msg, &ap)
	;;
}
const fail = {ctx, msg, args
	var ap
	
	ap = std.vastart(&args)
	failv(ctx, msg, &ap)
}
const failv = {ctx, msg, ap
	softfailv(ctx, msg, ap)
	std.longjmp(ctx.jmpbuf)
}
const softfail = {ctx, msg, args
	var ap
	
	ap = std.vastart(&args)
	softfailv(ctx, msg, &ap)
}
const softfailv = {ctx, msg, ap
	ctx.ok = false
	ctx.reason = std.fmtv(msg, ap)
}
const runspec = {ts
	var ctx : ctx
	var status, reason
	var jmpbuf
	ctx.ok = true
	ctx.reason = ""
	ctx.jmpbuf = &jmpbuf
	std.put("test {} <<{{!\n", ts.name)
	if !std.setjmp(&jmpbuf)
		ts.fn(&ctx)
	;;
	if ctx.ok
		status = "ok"
		reason = ""
	else
		status = "fail"
		reason = ctx.reason
	;;
	std.put("!}}>> {} {}\n", status, reason)
	std.slfree(reason)
}