func TestDeferEval(t *testing.T) {
d := New()
err := d.ParseString(`@foo: red; @bar1: @foo; @foo: blue; @bar2: @foo;`)
assert.NoError(t, err)
err = d.Evaluate()
assert.NoError(t, err)
// with deferred evaluation bar1 and bar2 reference latest @foo value
assert.Equal(t, color.MustParse("blue"), d.vars.getKey(key{name: "bar1"}))
assert.Equal(t, color.MustParse("blue"), d.vars.getKey(key{name: "bar2"}))
d = New()
err = d.ParseString(`
@foo: red;
#foo {
line-color: @foo;
line-width: 1;
}
@foo: blue;`)
assert.NoError(t, err)
err = d.Evaluate()
assert.NoError(t, err)
// with deferred evaluation line-color references latest @foo value
r := d.MSS().LayerRules("foo")
c, _ := r[0].Properties.get("line-color")
assert.Equal(t, color.MustParse("blue"), c)
}
func TestFmtColor(t *testing.T) {
assert.Nil(t, fmtColor(color.Color{}, false))
assert.Equal(t, `"#ff0000"`, *fmtColor(color.MustParse("red"), true))
c := color.MustParse("red")
c.A = 0.5
assert.Equal(t, `"#ff000080"`, *fmtColor(c, true))
}
func TestPolygonLayer(t *testing.T) {
m := New(&locator)
m.SetNoMapBlock(true)
m.AddLayer(mml.Layer{ID: "test", SRS: "4326", Type: mml.Polygon},
[]mss.Rule{
{Layer: "test", Properties: mss.NewProperties(
"line-width", 1.0,
"line-color", color.MustParse("red"),
"line-opacity", 0.5,
"line-dasharray", []mss.Value{3.0, 5.0},
"polygon-fill", color.MustParse("blue"),
"polygon-opacity", 0.2,
"text-size", 10.0,
"text-name", []mss.Value{mss.Field("name")},
)},
})
result := m.String()
assert.Contains(t, result, "WIDTH 1\n")
assert.Contains(t, result, "OUTLINECOLOR \"#ff000080\"\n")
assert.Regexp(t, `PATTERN\s+3\s+5\s+END`, result)
assert.Contains(t, result, "COLOR \"#0000ff\"\n")
assert.Contains(t, result, "OPACITY 20\n")
assert.Regexp(t, `LABEL\s+ SIZE 7.4\d+`, result)
assert.Regexp(t, `TEXT 'name'`, result)
}
func TestScaledLineStringLayer(t *testing.T) {
m := New(&locator)
m.SetNoMapBlock(true)
m.AddLayer(mml.Layer{ID: "test", SRS: "4326", Type: mml.LineString, ScaleFactor: 2.0},
[]mss.Rule{
{Layer: "test", Properties: mss.NewProperties(
"line-width", 3.0,
"line-opacity", 0.2,
"line-dasharray", []mss.Value{2.0, 7.0},
)},
})
m.AddLayer(mml.Layer{ID: "test", SRS: "4326", Type: mml.LineString},
[]mss.Rule{
{Layer: "test", Properties: mss.NewProperties(
"line-width", 1.0,
"line-color", color.MustParse("red"),
"line-opacity", 0.5,
"line-dasharray", []mss.Value{3.0, 5.0},
)},
})
result := m.String()
assert.Contains(t, result, "WIDTH 6\n")
assert.Contains(t, result, "OPACITY 20\n")
assert.Regexp(t, `PATTERN\s+4\s+14\s+END`, result)
assert.Contains(t, result, "WIDTH 1\n")
assert.Contains(t, result, "COLOR \"#ff0000\"\n")
assert.Contains(t, result, "OPACITY 50\n")
assert.Regexp(t, `PATTERN\s+3\s+5\s+END`, result)
}
func TestEmptyStyle(t *testing.T) {
// check that instance with line-width produces empty STYLE block
m := New(&locator)
m.SetNoMapBlock(true)
m.AddLayer(mml.Layer{ID: "test", SRS: "4326", Type: mml.Polygon},
[]mss.Rule{
{Layer: "test", Properties: mss.NewPropertiesInstance(
"line-width", "a", 0.0,
"line-color", "a", color.MustParse("red"),
"line-width", "b", 1.0,
"line-color", "b", color.MustParse("blue"),
)},
})
result := m.String()
assert.Regexp(t, `STYLE\s+END\s+STYLE\n`, result)
}
func TestParseColor(t *testing.T) {
var err error
var d *Decoder
_, err = decodeString(`@foo: #zzz;`)
assert.Error(t, err)
assert.Contains(t, err.Error(), "invalid hex color")
_, err = decodeString(`@foo: #abcde;`)
assert.Error(t, err)
assert.Contains(t, err.Error(), "invalid hex color")
_, err = decodeString(`@foo: #zzzzzz;`)
assert.Error(t, err)
assert.Contains(t, err.Error(), "invalid hex color")
d, err = decodeString(`@foo: #abcdef;`)
assert.NoError(t, err)
assert.Equal(t, color.MustParse("#abcdef"), d.vars.getKey(key{name: "foo"}))
d, err = decodeString(`@foo: #fff;`)
assert.NoError(t, err)
assert.Equal(t, color.RGBA{1, 1, 1, 1}, d.vars.getKey(key{name: "foo"}))
d, err = decodeString(`@foo: #000;`)
assert.NoError(t, err)
assert.Equal(t, color.RGBA{0, 0, 0, 1}, d.vars.getKey(key{name: "foo"}))
d, err = decodeString(`@foo: #00ff00;`)
assert.NoError(t, err)
assert.Equal(t, color.RGBA{0, 1, 0, 1}, d.vars.getKey(key{name: "foo"}))
d, err = decodeString(`@foo: rgb(255, 102, 0);`)
assert.NoError(t, err)
assert.Equal(t, color.RGBA{1, 0.4, 0, 1}, d.vars.getKey(key{name: "foo"}))
d, err = decodeString(`@foo: rgb(255, 102, 0, 50);`)
assert.Error(t, err)
assert.Contains(t, err.Error(), "rgb takes exactly three arguments")
d, err = decodeString(`@foo: rgba(255, 102, 0, 102);`)
assert.NoError(t, err)
assert.Equal(t, color.RGBA{1, 0.4, 0, 0.4}, d.vars.getKey(key{name: "foo"}))
d, err = decodeString(`@foo: rgb(100%, 40%, 0);`)
assert.NoError(t, err)
assert.Equal(t, color.RGBA{1, 0.4, 0, 1}, d.vars.getKey(key{name: "foo"}))
d, err = decodeString(`@foo: rgba(100%, 102, 0, 20%);`)
assert.NoError(t, err)
assert.Equal(t, color.RGBA{1, 0.4, 0, 0.2}, d.vars.getKey(key{name: "foo"}))
d, err = decodeString(`@foo: -mc-set-hue(#996644, red); `)
assert.NoError(t, err)
assert.Equal(t, "#c64444", d.vars.getKey(key{name: "foo"}).(color.RGBA).Hex())
}
func TestParseMapBlock(t *testing.T) {
d, err := decodeString(`
#foo {line-width: 1}
Map {background-color: red}
#bar {line-width: 1}
`)
assert.NoError(t, err)
rules := allRules(d.MSS())
assertRulesEq(t, rules, []Rule{
Rule{Layer: "foo", Attachment: "", Properties: NewProperties("line-width", float64(1)), Zoom: AllZoom, order: 0},
Rule{Layer: "bar", Attachment: "", Properties: NewProperties("line-width", float64(1)), Zoom: AllZoom, order: 1},
})
assert.Equal(t, color.MustParse("red"), d.MSS().Map().getKey(key{name: "background-color"}))
}
func TestLayerZoomRules(t *testing.T) {
d := New()
err := d.ParseString(`
#foo[zoom=13] {
line-color: red;
line-width: 1;
}`)
assert.NoError(t, err)
err = d.Evaluate()
assert.NoError(t, err)
r := d.MSS().LayerZoomRules("foo", NewZoomRange(EQ, 13))
assert.Len(t, r, 1)
c, _ := r[0].Properties.get("line-color")
assert.Equal(t, color.MustParse("red"), c)
assert.Empty(t, d.MSS().LayerZoomRules("foo", NewZoomRange(EQ, 12)))
assert.Empty(t, d.MSS().LayerZoomRules("foo", NewZoomRange(GT, 13)))
assert.Empty(t, d.MSS().LayerZoomRules("foo", NewZoomRange(LT, 13)))
}
func TestRecursiveDeferEval(t *testing.T) {
d := New()
err := d.ParseString(`
@foo: red;
@bar: @foo;
#foo {
line-color: @baz;
line-width: 1;
}
@baz: @bar;
@foo: blue;`)
assert.NoError(t, err)
err = d.Evaluate()
assert.NoError(t, err)
// with deferred evaluation line-color references latest @foo value
r := d.MSS().LayerRules("foo")
c, _ := r[0].Properties.get("line-color")
assert.Equal(t, color.MustParse("blue"), c)
}
func TestParseColor(t *testing.T) {
var err error
var d *Decoder
_, err = decodeString(`@foo: #zzz;`)
assert.Error(t, err)
assert.Contains(t, err.Error(), "invalid hex color")
_, err = decodeString(`@foo: #abcde;`)
assert.Error(t, err)
assert.Contains(t, err.Error(), "invalid hex color")
_, err = decodeString(`@foo: #zzzzzz;`)
assert.Error(t, err)
assert.Contains(t, err.Error(), "invalid hex color")
d, err = decodeString(`@foo: #abcdef;`)
assert.NoError(t, err)
assert.Equal(t, color.MustParse("#abcdef"), d.vars.getKey(key{name: "foo"}))
d, err = decodeString(`@foo: #fff;`)
assert.NoError(t, err)
assert.Equal(t, color.Color{0.0, 0.0, 1.0, 1.0, false}, d.vars.getKey(key{name: "foo"}))
d, err = decodeString(`@foo: #000;`)
assert.NoError(t, err)
assert.Equal(t, color.Color{0.0, 0.0, 0.0, 1.0, false}, d.vars.getKey(key{name: "foo"}))
d, err = decodeString(`@foo: #00ff00;`)
assert.NoError(t, err)
assert.Equal(t, color.Color{120.0, 1.0, 0.5, 1.0, false}, d.vars.getKey(key{name: "foo"}))
d, err = decodeString(`@foo: rgb(255, 102, 0);`)
assert.NoError(t, err)
assert.Equal(t, color.Color{24.0, 1.0, 0.5, 1.0, false}, d.vars.getKey(key{name: "foo"}))
d, err = decodeString(`@foo: rgb(255, 102, 0, 50);`)
assert.Error(t, err)
assert.Contains(t, err.Error(), "rgb takes exactly three arguments")
d, err = decodeString(`@foo: rgba(255, 102, 0, 102);`)
assert.NoError(t, err)
assert.Equal(t, color.Color{24.0, 1.0, 0.5, 0.4, false}, d.vars.getKey(key{name: "foo"}))
d, err = decodeString(`@foo: rgb(100%, 40%, 0);`)
assert.NoError(t, err)
assert.Equal(t, color.Color{24.0, 1.0, 0.5, 1.0, false}, d.vars.getKey(key{name: "foo"}))
d, err = decodeString(`@foo: rgba(100%, 102, 0, 20%);`)
assert.NoError(t, err)
assert.Equal(t, color.Color{24.0, 1.0, 0.5, 0.2, false}, d.vars.getKey(key{name: "foo"}))
d, err = decodeString(`@foo: hsl(125, 55%, 25%);`)
assert.NoError(t, err)
assert.Equal(t, color.Color{125.0, 0.55, 0.25, 1.0, false}, d.vars.getKey(key{name: "foo"}))
d, err = decodeString(`@foo: hsla(125, 0.55, 0.25, 20%);`)
assert.NoError(t, err)
assert.Equal(t, color.Color{125.0, 0.55, 0.25, 0.2, false}, d.vars.getKey(key{name: "foo"}))
d, err = decodeString(`@foo: husl(125, 55%, 25%);`)
assert.NoError(t, err)
assert.Equal(t, color.Color{125.0, 0.55, 0.25, 1.0, true}, d.vars.getKey(key{name: "foo"}))
d, err = decodeString(`@foo: husla(125, 0.55, 0.25, 20%);`)
assert.NoError(t, err)
assert.Equal(t, color.Color{125.0, 0.55, 0.25, 0.2, true}, d.vars.getKey(key{name: "foo"}))
d, err = decodeString(`@foo: -mc-set-hue(#996644, red); `)
assert.NoError(t, err)
assert.Equal(t, "#c64545", d.vars.getKey(key{name: "foo"}).(color.Color).String())
}
func TestParseExpression(t *testing.T) {
tests := []struct {
expr string
err string
value interface{}
}{
{`@foo: __echo__(1);`, "", 1.0},
{`@foo: fadeout(rgba(255, 255, 255, 255), 50%);`, "", color.Color{0.0, 0.0, 1.0, 0.5, false}},
{`@foo: fadein(rgba(255, 255, 255, 0), 50%);`, "", color.Color{0.0, 0.0, 1.0, 0.5, false}},
{`@foo: 2 + 2 * 3;`, "", float64(8)},
{`@foo: (2 + 2) * 3;`, "", float64(12)},
{`@foo: 2 + 2 * 3 - 2 * 2;`, "", float64(4)},
{`@foo: ((2 + 2) * 3 - 2) * 2;`, "", float64(20)},
{`@foo: -(-(2 + 2) * 3 - 2) * 2;`, "", float64(28)},
{`@one: "one";
@two: "two";
@foo: @one + " + " + @two;`,
"", "one + two"},
{`@one: "one";
@two: [field];
@foo: @one + " + " + @two;`,
"", "one + [field]"},
{`@foo: lighten(red, 10%);`, "", color.Color{0, 1, 0.6, 1, false}},
{`@foo: lighten(red, 10%, 20%);`, "function lighten takes exactly two arguments", nil},
{`@foo: lighten(122, 10%);`, "function lighten requires color as first argument", nil},
{`@foo: lighten(red, red);`, "function lighten requires number/percent as second argument", nil},
{`@foo: hue(red);`, "", 0.0},
{`@foo: hue(red, red);`, "function hue takes exactly one argument", nil},
{`@foo: hue(123);`, "function hue requires color as argument", nil},
{`@foo: mix(red, blue, 0%);`, "", color.MustParse("blue")},
{`@foo: mix(red, blue);`, "function mix takes exactly three arguments", nil},
{`@foo: mix(red, blue);`, "function mix takes exactly three arguments", nil},
{`@foo: mix(red, blue, red, blue);`, "function mix takes exactly three arguments", nil},
{`@foo: mix(123, blue, 0%);`, "function mix requires color as first and second argument", nil},
{`@foo: mix(red, 123, 0%);`, "function mix requires color as first and second argument", nil},
{`@foo: mix(red, blue, red);`, "function mix requires number/percent as third argument", nil},
{`@foo: rgb(0, 0, 0, 0);`, "rgb takes exactly three arguments", nil},
{`@foo: rgba(0, 0, 0);`, "rgba takes exactly four arguments", nil},
{`@foo: [field1] + " " + [field2] + "!";`, "", []Value{Field("[field1]"), " ", Field("[field2]"), "!"}},
{`@foo: [field1] + [field2];`, "", []Value{Field("[field1]"), Field("[field2]")}},
{`@foo: "hello " + [field2];`, "", []Value{"hello ", Field("[field2]")}},
{`@foo: red * 0.5;`, "", color.Color{0, 1.0, 0.25, 1, false}},
{`@foo: red * blue;`, "unsupported operation", nil},
}
for _, tt := range tests {
d, err := decodeString(tt.expr)
if tt.err == "" {
assert.NoError(t, err, "expr %q returnd error %q", tt.expr, err)
} else if err == nil {
t.Errorf("expected error %q for %q", tt.err, tt.expr)
} else {
assert.Contains(t, err.Error(), tt.err)
}
if tt.value != nil {
assert.Equal(t, tt.value, d.vars.getKey(key{name: "foo"}))
}
}
}
