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fil/docs/snippets/zig/plugins/plugin_testing.md

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2026-06-01 23:40:55 +02:00
```zig title="Zig"
const std = @import("std");
const testing = std.testing;
const kreuzberg = @import("kreuzberg");
const NoopValidator = struct {
pub fn validate(self: *NoopValidator, result: [*c]const u8, config: [*c]const u8) !void {
_ = self;
_ = result;
_ = config;
}
pub fn should_validate(self: *NoopValidator, result: [*c]const u8, config: [*c]const u8) i32 {
_ = self;
_ = result;
_ = config;
return 1;
}
pub fn priority(self: *NoopValidator) i32 {
_ = self;
return 50;
}
};
test "register and unregister validator" {
var instance = NoopValidator{};
var vtable = kreuzberg.make_validator_vtable(NoopValidator, &instance);
vtable.name_fn = struct {
fn thunk(user_data: ?*anyopaque, out_name: ?*?[*c]u8) callconv(.C) void {
_ = user_data;
if (out_name) |ptr| ptr.* = @constCast("noop-validator");
}
}.thunk;
vtable.version_fn = struct {
fn thunk(user_data: ?*anyopaque, out_version: ?*?[*c]u8) callconv(.C) void {
_ = user_data;
if (out_version) |ptr| ptr.* = @constCast("1.0.0");
}
}.thunk;
var out_error: ?[*c]u8 = null;
try testing.expectEqual(@as(i32, 0), kreuzberg.register_validator("noop-validator", vtable, &instance, &out_error));
const validators = try kreuzberg.list_validators();
defer std.heap.c_allocator.free(validators);
try testing.expect(std.mem.indexOf(u8, validators, "noop-validator") != null);
try testing.expectEqual(@as(i32, 0), kreuzberg.unregister_validator("noop-validator", &out_error));
}
```