go/chroma
1
0
Fork 0
mirror of https://github.com/alecthomas/chroma.git synced 2025-11-29 22:47:29 +02:00
Code Issues Releases Activity

Upgrade project to Go 1.19 and switch to alecthomas/assert/v2

Browse Source
This commit is contained in:
Alec Thomas
2022-10-17 20:46:53 +11:00
parent b338844a9a
commit 40b7a9135a
29 changed files with 127 additions and 133 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
colour_test.go
View File

@@ -4,7 +4,7 @@ import (
"math"
"testing"
"github.com/stretchr/testify/assert"
assert "github.com/alecthomas/assert/v2"
)
func TestColourRGB(t *testing.T) {
@@ -62,12 +62,10 @@ func hue(c Colour) float64 {
}
func TestColourClampBrightness(t *testing.T) {
const delta = 0.01 // used for brightness and hue comparisons
// Start with a colour with a brightness close to 0.5.
initial := NewColour(0, 128, 255)
br := initial.Brightness()
assert.InDelta(t, 0.5, br, delta)
assertInDelta(t, 0.5, br)
// Passing a range that includes the colour's brightness should be a no-op.
assert.Equal(t, initial.String(), initial.ClampBrightness(br-0.01, br+0.01).String())
@@ -79,10 +77,15 @@ func TestColourClampBrightness(t *testing.T) {
// Clamping to a brighter or darker range should produce the requested
// brightness while preserving the colour's hue.
brighter := initial.ClampBrightness(0.75, 1)
assert.InDelta(t, 0.75, brighter.Brightness(), delta)
assert.InDelta(t, hue(initial), hue(brighter), delta)
assertInDelta(t, 0.75, brighter.Brightness())
assertInDelta(t, hue(initial), hue(brighter))
darker := initial.ClampBrightness(0, 0.25)
assert.InDelta(t, 0.25, darker.Brightness(), delta)
assert.InDelta(t, hue(initial), hue(darker), delta)
assertInDelta(t, 0.25, darker.Brightness())
assertInDelta(t, hue(initial), hue(darker))
}
func assertInDelta(t *testing.T, expected, actual float64) {
const delta = 0.01 // used for brightness and hue comparisons
assert.True(t, actual > (expected-delta) && actual < (expected+delta))
}