1 files changed, 7 insertions, 1 deletions
diff --git a/build.zig b/build.zig
index 04516cc8..e5a63532 100644
--- a/build.zig
+++ b/build.zig
@@ -668,7 +668,7 @@ pub fn build(b: *std.Build) void {
             .optimize = optimize,
             .root_source_file = b.path("src/modal.zig"),
         }) });
-        const unit_step = b.step("unit-test", "run the modal.zig + crt.zig + deck replay unit tests");
+        const unit_step = b.step("unit-test", "run the modal.zig + crt.zig + deck replay + core unit tests");
         unit_step.dependOn(&b.addRunArtifact(unit).step);
         // crt.zig is pure std — the mouse-mapping-vs-shader-formula test
         const crt_test = b.addTest(.{ .root_module = b.createModule(.{
@@ -690,6 +690,12 @@ pub fn build(b: *std.Build) void {
             .root_source_file = b.path("src/gui/deck.zig"),
         }));
         unit_step.dependOn(&b.addRunArtifact(deck_test).step);
+        // the core's own inline tests (config.zig's wheel drift guard). It
+        // links the SAME module hxdiff does rather than a fourth hand-wired
+        // copy of ghostty-vt/tree-sitter/zstbi — a second wiring of that graph
+        // is a second thing to keep in step.
+        const core_test = b.addTest(.{ .root_module = hx_core_mod });
+        unit_step.dependOn(&b.addRunArtifact(core_test).step);
     }
 }