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Add some test cases for the previous commits

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This commit is contained in:
LemonBoy 2020-12-05 19:16:36 +01:00
parent 97f36d93f4
commit b45d2968e5
1 changed files with 79 additions and 0 deletions
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79
test/runtime_safety.zig
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@ -1,6 +1,85 @@
const tests = @import("tests.zig");
pub fn addCases(cases: *tests.CompareOutputContext) void {
{
const check_panic_msg =
\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
\\ if (std.mem.eql(u8, message, "reached unreachable code")) {
\\ std.process.exit(126); // good
\\ }
\\ std.process.exit(0); // test failed
\\}
;
cases.addRuntimeSafety("switch on corrupted enum value",
\\const std = @import("std");
++ check_panic_msg ++
\\const E = enum(u32) {
\\ X = 1,
\\};
\\pub fn main() void {
\\ var e: E = undefined;
\\ @memset(@ptrCast([*]u8, &e), 0x55, @sizeOf(E));
\\ switch (e) {
\\ .X => @breakpoint(),
\\ }
\\}
);
cases.addRuntimeSafety("switch on corrupted union value",
\\const std = @import("std");
++ check_panic_msg ++
\\const U = union(enum(u32)) {
\\ X: u8,
\\};
\\pub fn main() void {
\\ var u: U = undefined;
\\ @memset(@ptrCast([*]u8, &u), 0x55, @sizeOf(U));
\\ switch (u) {
\\ .X => @breakpoint(),
\\ }
\\}
);
}
{
const check_panic_msg =
\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
\\ if (std.mem.eql(u8, message, "invalid enum value")) {
\\ std.process.exit(126); // good
\\ }
\\ std.process.exit(0); // test failed
\\}
;
cases.addRuntimeSafety("@tagName on corrupted enum value",
\\const std = @import("std");
++ check_panic_msg ++
\\const E = enum(u32) {
\\ X = 1,
\\};
\\pub fn main() void {
\\ var e: E = undefined;
\\ @memset(@ptrCast([*]u8, &e), 0x55, @sizeOf(E));
\\ var n = @tagName(e);
\\}
);
cases.addRuntimeSafety("@tagName on corrupted union value",
\\const std = @import("std");
++ check_panic_msg ++
\\const U = union(enum(u32)) {
\\ X: u8,
\\};
\\pub fn main() void {
\\ var u: U = undefined;
\\ @memset(@ptrCast([*]u8, &u), 0x55, @sizeOf(U));
\\ var t: @TagType(U) = u;
\\ var n = @tagName(t);
\\}
);
}
{
const check_panic_msg =
\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {