zig/test/cli.zig

93 lines
3.1 KiB
Zig

const std = @import("std");
const os = std.os;
const assertOrPanic = std.debug.assertOrPanic;
var a: *std.mem.Allocator = undefined;
pub fn main() !void {
var direct_allocator = std.heap.DirectAllocator.init();
defer direct_allocator.deinit();
var arena = std.heap.ArenaAllocator.init(&direct_allocator.allocator);
defer arena.deinit();
var arg_it = os.args();
// skip my own exe name
_ = arg_it.skip();
a = &arena.allocator;
const zig_exe_rel = try (arg_it.next(a) orelse {
std.debug.warn("Expected first argument to be path to zig compiler\n");
return error.InvalidArgs;
});
const cache_root = try (arg_it.next(a) orelse {
std.debug.warn("Expected second argument to be cache root directory path\n");
return error.InvalidArgs;
});
const zig_exe = try os.path.resolve(a, zig_exe_rel);
try testZigInitLib(zig_exe, cache_root);
try testZigInitExe(zig_exe, cache_root);
}
fn unwrapArg(arg: UnwrapArgError![]u8) UnwrapArgError![]u8 {
return arg catch |err| {
warn("Unable to parse command line: {}\n", err);
return err;
};
}
fn printCmd(cwd: []const u8, argv: []const []const u8) void {
std.debug.warn("cd {} && ", cwd);
for (argv) |arg| {
std.debug.warn("{} ", arg);
}
std.debug.warn("\n");
}
fn exec(cwd: []const u8, argv: []const []const u8) !os.ChildProcess.ExecResult {
const max_output_size = 100 * 1024;
const result = os.ChildProcess.exec(a, argv, cwd, null, max_output_size) catch |err| {
std.debug.warn("The following command failed:\n");
printCmd(cwd, argv);
return err;
};
switch (result.term) {
os.ChildProcess.Term.Exited => |code| {
if (code != 0) {
std.debug.warn("The following command exited with error code {}:\n", code);
printCmd(cwd, argv);
std.debug.warn("stderr:\n{}\n", result.stderr);
return error.CommandFailed;
}
},
else => {
std.debug.warn("The following command terminated unexpectedly:\n");
printCmd(cwd, argv);
std.debug.warn("stderr:\n{}\n", result.stderr);
return error.CommandFailed;
},
}
return result;
}
fn testZigInitLib(zig_exe: []const u8, cache_root: []const u8) !void {
const dir_path = try os.path.join(a, cache_root, "clitest");
try os.deleteTree(a, dir_path);
try os.makeDir(dir_path);
_ = try exec(dir_path, [][]const u8{ zig_exe, "init-lib" });
const test_result = try exec(dir_path, [][]const u8{ zig_exe, "build", "test" });
assertOrPanic(std.mem.endsWith(u8, test_result.stderr, "All tests passed.\n"));
}
fn testZigInitExe(zig_exe: []const u8, cache_root: []const u8) !void {
const dir_path = try os.path.join(a, cache_root, "clitest");
try os.deleteTree(a, dir_path);
try os.makeDir(dir_path);
_ = try exec(dir_path, [][]const u8{ zig_exe, "init-exe" });
const run_result = try exec(dir_path, [][]const u8{ zig_exe, "build", "run" });
assertOrPanic(std.mem.eql(u8, run_result.stderr, "All your base are belong to us.\n"));
}