From 8f89bbdc02a687f69fc85733af54af6e998e21b7 Mon Sep 17 00:00:00 2001
From: Graham McIntire <graham@mcintire.me>
Date: Tue, 31 Mar 2026 10:00:13 -0500
Subject: [PATCH] Exclude slow GRIB2 fixture tests by default (81s -> 16s)

---
 .../weather/grib2/complex_packing_test.exs           | 12 ++++++------
 test/microwaveprop/weather/grib2/extractor_test.exs  | 10 +++++-----
 test/test_helper.exs                                 |  2 +-
 3 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/test/microwaveprop/weather/grib2/complex_packing_test.exs b/test/microwaveprop/weather/grib2/complex_packing_test.exs
index 19bedcd6..c9d0e1cf 100644
--- a/test/microwaveprop/weather/grib2/complex_packing_test.exs
+++ b/test/microwaveprop/weather/grib2/complex_packing_test.exs
@@ -7,7 +7,7 @@ defmodule Microwaveprop.Weather.Grib2.ComplexPackingTest do
   @fixture_path "test/fixtures/grib2/hrrr_tmp_2m.grib2"
 
   describe "extract_value/3 with real HRRR fixture" do
-    @tag :fixture
+    @tag :slow
     test "extracts a temperature value within meteorological range" do
       if File.exists?(@fixture_path) do
         fixture = File.read!(@fixture_path)
@@ -26,7 +26,7 @@ defmodule Microwaveprop.Weather.Grib2.ComplexPackingTest do
       end
     end
 
-    @tag :fixture
+    @tag :slow
     test "extracts values at multiple indices" do
       if File.exists?(@fixture_path) do
         fixture = File.read!(@fixture_path)
@@ -45,7 +45,7 @@ defmodule Microwaveprop.Weather.Grib2.ComplexPackingTest do
       end
     end
 
-    @tag :fixture
+    @tag :slow
     test "Dallas area temperature is reasonable for a US city" do
       if File.exists?(@fixture_path) do
         fixture = File.read!(@fixture_path)
@@ -70,7 +70,7 @@ defmodule Microwaveprop.Weather.Grib2.ComplexPackingTest do
   end
 
   describe "decode_all/2" do
-    @tag :fixture
+    @tag :slow
     test "decodes all values from fixture" do
       if File.exists?(@fixture_path) do
         fixture = File.read!(@fixture_path)
@@ -94,7 +94,7 @@ defmodule Microwaveprop.Weather.Grib2.ComplexPackingTest do
   end
 
   describe "extract_values/3" do
-    @tag :fixture
+    @tag :slow
     test "batch extracts multiple values matching individual calls" do
       if File.exists?(@fixture_path) do
         fixture = File.read!(@fixture_path)
@@ -122,7 +122,7 @@ defmodule Microwaveprop.Weather.Grib2.ComplexPackingTest do
       end
     end
 
-    @tag :fixture
+    @tag :slow
     test "returns values in meteorological range" do
       if File.exists?(@fixture_path) do
         fixture = File.read!(@fixture_path)
diff --git a/test/microwaveprop/weather/grib2/extractor_test.exs b/test/microwaveprop/weather/grib2/extractor_test.exs
index 79d08d9c..824fde7b 100644
--- a/test/microwaveprop/weather/grib2/extractor_test.exs
+++ b/test/microwaveprop/weather/grib2/extractor_test.exs
@@ -154,7 +154,7 @@ defmodule Microwaveprop.Weather.Grib2.ExtractorTest do
     @fixture_path "test/fixtures/grib2/hrrr_tmp_2m.grib2"
     @multi_fixture_path "test/fixtures/grib2/hrrr_multi.grib2"
 
-    @tag :fixture
+    @tag :slow
     @tag timeout: 300_000
     test "extracts grid values matching extract_points for same location" do
       if File.exists?(@fixture_path) do
@@ -174,7 +174,7 @@ defmodule Microwaveprop.Weather.Grib2.ExtractorTest do
       end
     end
 
-    @tag :fixture
+    @tag :slow
     @tag timeout: 300_000
     test "extracts grid values for multiple US cities" do
       if File.exists?(@fixture_path) do
@@ -206,7 +206,7 @@ defmodule Microwaveprop.Weather.Grib2.ExtractorTest do
     @fixture_path "test/fixtures/grib2/hrrr_tmp_2m.grib2"
     @multi_fixture_path "test/fixtures/grib2/hrrr_multi.grib2"
 
-    @tag :fixture
+    @tag :slow
     @tag timeout: 120_000
     test "extracts TMP:2m from real single-message GRIB2" do
       if File.exists?(@fixture_path) do
@@ -221,7 +221,7 @@ defmodule Microwaveprop.Weather.Grib2.ExtractorTest do
       end
     end
 
-    @tag :fixture
+    @tag :slow
     @tag timeout: 300_000
     test "extracts from multi-message GRIB2" do
       if File.exists?(@multi_fixture_path) do
@@ -234,7 +234,7 @@ defmodule Microwaveprop.Weather.Grib2.ExtractorTest do
       end
     end
 
-    @tag :fixture
+    @tag :slow
     @tag timeout: 300_000
     test "DPT values are meteorologically reasonable (not corrupted by bit padding)" do
       if File.exists?(@multi_fixture_path) do
diff --git a/test/test_helper.exs b/test/test_helper.exs
index 5f83cfe0..62f1ca42 100644
--- a/test/test_helper.exs
+++ b/test/test_helper.exs
@@ -1,2 +1,2 @@
-ExUnit.start()
+ExUnit.start(exclude: [:slow])
 Ecto.Adapters.SQL.Sandbox.mode(Microwaveprop.Repo, :manual)