diff --git a/crates/j2k-metal/src/batch/tests.rs b/crates/j2k-metal/src/batch/tests.rs
index befa54b8..023b9b95 100644
--- a/crates/j2k-metal/src/batch/tests.rs
+++ b/crates/j2k-metal/src/batch/tests.rs
@@ -6,8 +6,9 @@ use j2k_core::{BackendRequest, Downscale, PixelFormat, Rect};
 
 use crate::{Error, MetalSession};
 
+use super::execute::complete_repeated_device_failure;
 #[cfg(target_os = "macos")]
-use super::execute::{complete_repeated_device_failure, process_batch};
+use super::execute::process_batch;
 #[cfg(target_os = "macos")]
 use super::heuristics::GroupedRequests;
 use super::heuristics::{
diff --git a/crates/j2k-metal/src/encode/tests.rs b/crates/j2k-metal/src/encode/tests.rs
index 565ceb0a..af633bfb 100644
--- a/crates/j2k-metal/src/encode/tests.rs
+++ b/crates/j2k-metal/src/encode/tests.rs
@@ -7,8 +7,10 @@ use super::stage_accelerator::{
 use super::MetalEncodeStageAccelerator;
 #[cfg(target_os = "macos")]
 use crate::compute;
+#[cfg(target_os = "macos")]
+use j2k::encode_j2k_lossless;
 use j2k::{
-    encode_j2k_lossless, encode_j2k_lossless_with_accelerator, EncodeBackendPreference, EncodedJ2k,
+    encode_j2k_lossless_with_accelerator, EncodeBackendPreference, EncodedJ2k,
     J2kLosslessEncodeOptions, J2kLosslessSamples,
 };
 #[cfg(target_os = "macos")]
diff --git a/crates/j2k-metal/src/routing.rs b/crates/j2k-metal/src/routing.rs
index c6bd9240..f658f9ac 100644
--- a/crates/j2k-metal/src/routing.rs
+++ b/crates/j2k-metal/src/routing.rs
@@ -1,6 +1,8 @@
 // SPDX-License-Identifier: MIT OR Apache-2.0
 
-use j2k_core::{BackendRequest, CompressedTransferSyntax, PixelFormat};
+#[cfg(any(target_os = "macos", test))]
+use j2k_core::CompressedTransferSyntax;
+use j2k_core::{BackendRequest, PixelFormat};
 #[cfg(target_os = "macos")]
 use j2k_metal_support::metal_kernel_route;
 use j2k_metal_support::{
@@ -15,11 +17,16 @@ pub(crate) const AUTO_DECODE_CPU_FALLBACK_REASON: &str =
 
 // Minimum qualified cells from verified Auto-routing artifact
 // 162a47f7a96b2be88abebc100aab672513af04895532863fa1a293660546f879.
+#[cfg(any(target_os = "macos", test))]
 const AUTO_REPEATED_DECODE_MIN_COUNT: usize = 16;
+#[cfg(any(target_os = "macos", test))]
 const AUTO_REPEATED_GRAY8_MIN_PIXELS: u64 = 2_960_793;
+#[cfg(any(target_os = "macos", test))]
 const AUTO_REPEATED_RGB8_LOSSY_MIN_PIXELS: u64 = 307_200;
+#[cfg(any(target_os = "macos", test))]
 const AUTO_REPEATED_RGB8_LOSSLESS_MIN_PIXELS: u64 = 5_038_848;
 
+#[cfg(any(target_os = "macos", test))]
 pub(crate) fn auto_repeated_decode_uses_metal(
     dimensions: (u32, u32),
     fmt: PixelFormat,
diff --git a/crates/j2k-t803/src/runner/metal.rs b/crates/j2k-t803/src/runner/metal.rs
index 109c4ff7..a63903cc 100644
--- a/crates/j2k-t803/src/runner/metal.rs
+++ b/crates/j2k-t803/src/runner/metal.rs
@@ -18,6 +18,7 @@ use crate::{ExecutionLocation, PlatformIdentity};
 #[cfg(target_os = "macos")]
 use super::{cases, encoder, execute};
 
+#[cfg(target_os = "macos")]
 const METAL_CLAIM: &str = "Profile-1 Cclass-1 adapter IUT; Profile-1 Cclass-1HF adapter IUT; Annex G JP2 reader via j2k CPU stages (candidate evidence)";
 
 #[cfg(target_os = "macos")]