shithub: mc

ref: f995117702dd77f832b2a70ce94c4f5c9848efd4
dir: /lib/std/test/strbuf.myr/

use std

const main = {
	var sb
	var buf : byte[16]

	sb = std.mksb()
	std.assert(std.eq(std.sbpeek(sb), ""), "mismatched empty str\n")
	std.sbputs(sb, "hello")
	std.assert(std.eq(std.sbpeek(sb), "hello"), "mismatched hello\n")
	std.sbputs(sb, ", hello")
	std.assert(std.eq(std.sbpeek(sb), "hello, hello"), "mismatched double hello\n")
	std.sbtrim(sb, 7)
	std.assert(std.eq(std.sbpeek(sb), "hello, "), "mismatched trim\n")
	std.sbputs(sb, "world")
	std.assert(std.eq(std.sbpeek(sb), "hello, world"), "mismatched hello world\n")
	std.sbtrim(sb, -5)
	std.assert(std.eq(std.sbpeek(sb), "hello, "), "mismatched rtrim\n")
	std.sbputc(sb, '世')
	std.sbputc(sb, '界')
	std.assert(std.eq(std.sbpeek(sb), "hello, 世界"), "mismatched unicode\n")
	std.sbputb(sb, 10)
	std.assert(std.eq(std.sbpeek(sb), "hello, 世界\n"), "mismatched byte\n")

	sb = std.mkbufsb(buf[:])
	std.assert(std.sbputs(sb, "hello"), "failed to add hello\n") /* 5 characters */
	std.assert(std.sbputs(sb, "hello"), "failed to add hello\n") /* 10 characters */
	std.assert(std.sbputs(sb, "hello"), "failed to add hello\n") /* 15 characters */
	std.assert(!std.sbputs(sb, "hello"), "erronous success\n") /* 16 characters */
	std.assert(std.eq(std.sbpeek(sb), "hellohellohelloh"), "failed to copy as much as possible\n")
	std.sbtrim(sb, -1)
	std.assert(std.eq(std.sbpeek(sb), "hellohellohello"), "failed rtrim\n")
	std.sbputc(sb, '世')
	std.assert(std.eq(std.sbpeek(sb), "hellohellohello"), "modified overflowed putc\n")
	std.sbtrim(sb, -2)
	std.assert(std.eq(std.sbpeek(sb), "hellohellohel"), "failed rtrim\n")
	std.sbputc(sb, '世')
	std.assert(std.eq(std.sbpeek(sb), "hellohellohel世"), "failed to append with putc\n")
}