change tests to comptime checks

Author: hazeycode

build.zig

@@ -2,25 +2,9 @@ const std = @import("std");
 const builtin = @import("builtin");
 
 pub fn build(b: *std.Build) !void {
-    const optimize = b.standardOptimizeOption(.{});
-    const target = b.standardTargetOptions(.{});
-
     _ = b.addModule("root", .{
         .root_source_file = b.path("src/zwin32.zig"),
     });
-
-    const test_step = b.step("test", "Run zwin32 tests");
-
-    const tests = b.addTest(.{
-        .name = "zwin32-tests",
-        .root_source_file = b.path("src/zwin32.zig"),
-        .target = target,
-        .optimize = optimize,
-    });
-
-    b.installArtifact(tests);
-
-    test_step.dependOn(&b.addRunArtifact(tests).step);
 }
 
 pub fn install_xaudio2(

src/zwin32.zig

@@ -1,3 +1,11 @@
+const std = @import("std");
+const panic = std.debug.panic;
+const assert = std.debug.assert;
+
+comptime {
+    std.testing.refAllDeclsRecursive(@This());
+}
+
 pub const w32 = @import("w32.zig");
 pub const dwrite = @import("dwrite.zig");
 pub const dxgi = @import("dxgi.zig");
@@ -19,17 +27,9 @@ pub const xinput = @import("xinput.zig");
 pub const dds_loader = @import("dds_loader.zig");
 pub const d3dcompiler = @import("d3dcompiler.zig");
 
-test {
-    std.testing.refAllDeclsRecursive(@This());
-}
-
 const HRESULT = w32.HRESULT;
 const S_OK = w32.S_OK;
 
-const std = @import("std");
-const panic = std.debug.panic;
-const assert = std.debug.assert;
-
 // TODO: Handle more error codes from https://docs.microsoft.com/en-us/windows/win32/com/com-error-codes-10
 pub const HResultError =
     w32.MiscError || w32.Error || dxgi.Error || d3d12.Error || d3d11.Error ||