diff --git a/build.zig b/build.zig
index 4ab82c9762a9a5726b155bd0bf3f32c9a409007f..a6d84b25dec5008530db36494120004b2916ff6e 100644
--- a/build.zig
+++ b/build.zig
@@ -19,4 +19,16 @@ pub fn build(b: *std.Build) void {
         .install_dir = .header,
         .install_subdir = "unicode",
     });
+
+    const tests = b.addTest(.{
+        .root_source_file = b.path("test.zig"),
+        .target = target,
+        .optimize = mode,
+    });
+    deps.addAllTo(tests);
+
+    const test_step = b.step("test", "Run all library tests");
+    const tests_run = b.addRunArtifact(tests);
+    tests_run.has_side_effects = true;
+    test_step.dependOn(&tests_run.step);
 }
diff --git a/test.zig b/test.zig
new file mode 100644
index 0000000000000000000000000000000000000000..7cdb2eea6731a5f0e580a6b8bdbe29509fdf3637
--- /dev/null
+++ b/test.zig
@@ -0,0 +1,7 @@
+const std = @import("std");
+const icu = @import("icu");
+
+// TODO: run the official test suite from unicode
+test {
+    std.testing.refAllDeclsRecursive(icu);
+}