From 0e27097e3d706e0e5bd761bf35fe301fd119d2a9 Mon Sep 17 00:00:00 2001
From: Martin Kagamino Lehoux <martin@lehoux.net>
Date: Fri, 21 Aug 2026 11:09:29 +0200
Subject: refactor(ride): express category thresholds as inclusive min scores

---
 ride/difficulty_test.go | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

(limited to 'ride/difficulty_test.go')

diff --git a/ride/difficulty_test.go b/ride/difficulty_test.go
index 142ac0a..5773376 100644
--- a/ride/difficulty_test.go
+++ b/ride/difficulty_test.go
@@ -1,6 +1,7 @@
 package ride_test
 
 import (
+	"math"
 	"testing"
 
 	"github.com/martinlehoux/biking_home/ride"
@@ -48,6 +49,32 @@ func TestCotacolClimbNotAtStart(t *testing.T) {
 	assert.InDelta(t, 98.0, climbs[0].DifficultyScore(), 1e-9)
 }
 
+func TestCategoryOfBoundaries(t *testing.T) {
+	cases := []struct {
+		score float64
+		want  ride.Category
+	}{
+		{-5, ride.CategoryNo},
+		{30, ride.CategoryNo},
+		{35, ride.CategoryFour}, // 35 is the first floor, not below it
+		{79, ride.CategoryFour},
+		{80, ride.CategoryThree},
+		{179, ride.CategoryThree},
+		{180, ride.CategoryTwo},
+		{249, ride.CategoryTwo},
+		{250, ride.CategoryOne},
+		{599, ride.CategoryOne},
+		{600, ride.CategoryHC},
+		{700, ride.CategoryHC},
+		{math.NaN(), ride.CategoryHC}, // reaches no floor, like the original switch default
+	}
+	for _, c := range cases {
+		assert.Equal(t, c.want, ride.CategoryOf(c.score), "score %v", c.score)
+	}
+	assert.Equal(t, "Cat 1", ride.CategoryOne.String())
+	assert.Equal(t, "NO", ride.CategoryNo.String())
+}
+
 func TestCotacolHautacamClimbfinderReference(t *testing.T) {
 	r, err := ride.ParseFile(parser, "../examples/2022-07-21.Pogacar.gpx")
 	assert.NoError(t, err)
-- 
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