66 lines
2.0 KiB
Go
66 lines
2.0 KiB
Go
package gui
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import (
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"math"
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"net/url"
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"testing"
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)
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func TestParseFit(t *testing.T) {
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h, g, ok := parseFit(url.Values{"h": {"480"}, "ms": {"620"}, "ease": {".22,1,.36,1"}})
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if !ok || h != 480 || g.MS != 620 || g.Curve != [4]float64{.22, 1, .36, 1} {
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t.Fatalf("parsed %d %+v %v", h, g, ok)
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}
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if _, g, _ := parseFit(url.Values{"h": {"300"}}); g.MS != 0 {
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t.Errorf("a bare h glides: %+v", g)
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}
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if _, _, ok := parseFit(url.Values{"h": {"x"}}); ok {
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t.Error("a height that isn't a number read as one")
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}
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if _, g, _ := parseFit(url.Values{"h": {"300"}, "ms": {"99999"}, "ease": {"2,0,-1,1"}}); g.MS != 2000 || g.Curve[0] != 1 || g.Curve[2] != 0 {
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t.Errorf("out of range kept: %+v", g)
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}
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if got := (Glide{Curve: [4]float64{.22, 1, .36, 1}}).ease(); got != "0.22,1,0.36,1" {
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t.Errorf("ease %q", got)
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}
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}
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// The glide keeps the page's pace: linear is linear, an ease-out is ahead of
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// it early on, and the frames end exactly on the height asked for.
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func TestGlideCurve(t *testing.T) {
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lin := Glide{Curve: [4]float64{0, 0, 1, 1}}
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for _, x := range []float64{.1, .5, .9} {
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if math.Abs(lin.at(x)-x) > 1e-6 {
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t.Errorf("linear at %v = %v", x, lin.at(x))
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}
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}
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out := Glide{MS: 620, Curve: [4]float64{.22, 1, .36, 1}}
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if out.at(.3) < .6 {
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t.Errorf("ease-out lags at .3: %v", out.at(.3))
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}
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f := out.frames(300, 420)
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if len(f) != 37 || f[len(f)-1] != 420 {
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t.Fatalf("frames %d, last %d", len(f), f[len(f)-1])
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}
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for i := 1; i < len(f); i++ {
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if f[i] < f[i-1] {
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t.Fatalf("frames go back at %d: %v", i, f)
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}
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}
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}
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func TestParseTint(t *testing.T) {
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c, ms, ok := parseTint(url.Values{"c": {"27, 28, 32, 255"}, "ms": {"450"}})
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if !ok || c != [4]uint8{27, 28, 32, 255} || ms != 450 {
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t.Fatalf("got %v %d %v", c, ms, ok)
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}
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if _, ms, _ := parseTint(url.Values{"c": {"0,0,0,255"}, "ms": {"99999"}}); ms != 2000 {
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t.Errorf("ms not capped: %d", ms)
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}
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for _, bad := range []string{"", "1,2,3", "1,2,3,256", "1,2,x,4", "-1,0,0,0"} {
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if _, _, ok := parseTint(url.Values{"c": {bad}}); ok {
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t.Errorf("%q read as a colour", bad)
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}
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}
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}
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