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// test getting environment variables
const std = @import("std");
const builtin = @import("builtin");
pub fn main() !void {
if (builtin.target.os.tag == .windows) {
return; // Windows env strings are WTF-16, so not supported by Zig's std.posix.getenv()
}
if (builtin.target.os.tag == .wasi and !builtin.link_libc) {
return; // std.posix.getenv is not supported on WASI due to the need of allocation
}
// Test some unset env vars:
try std.testing.expectEqual(std.posix.getenv(""), null);
try std.testing.expectEqual(std.posix.getenv("BOGUSDOESNOTEXISTENVVAR"), null);
try std.testing.expectEqual(std.posix.getenvZ("BOGUSDOESNOTEXISTENVVAR"), null);
if (builtin.link_libc) {
// Test if USER matches what C library sees
const expected = std.mem.span(std.c.getenv("USER") orelse "");
const actual = std.posix.getenv("USER") orelse "";
try std.testing.expectEqualStrings(expected, actual);
}
// env vars set by our build.zig run step:
try std.testing.expectEqualStrings("", std.posix.getenv("ZIG_TEST_POSIX_EMPTY") orelse "invalid");
try std.testing.expectEqualStrings("test=variable", std.posix.getenv("ZIG_TEST_POSIX_1EQ") orelse "invalid");
try std.testing.expectEqualStrings("=test=variable=", std.posix.getenv("ZIG_TEST_POSIX_3EQ") orelse "invalid");
}
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