Files
esbuild/internal/css_printer/css_printer_test.go
2020-09-28 20:30:11 -07:00

171 lines
8.3 KiB
Go

package css_printer
import (
"testing"
"github.com/evanw/esbuild/internal/css_parser"
"github.com/evanw/esbuild/internal/logger"
"github.com/evanw/esbuild/internal/test"
)
func assertEqual(t *testing.T, a interface{}, b interface{}) {
t.Helper()
if a != b {
t.Fatalf("%s != %s", a, b)
}
}
func expectPrintedCommon(t *testing.T, name string, contents string, expected string, options Options) {
t.Helper()
t.Run(name, func(t *testing.T) {
t.Helper()
log := logger.NewDeferLog()
tree := css_parser.Parse(log, test.SourceForTest(contents))
msgs := log.Done()
text := ""
for _, msg := range msgs {
text += msg.String(logger.StderrOptions{}, logger.TerminalInfo{})
}
assertEqual(t, text, "")
css := Print(tree, options)
assertEqual(t, string(css), expected)
})
}
func expectPrinted(t *testing.T, contents string, expected string) {
t.Helper()
expectPrintedCommon(t, contents, contents, expected, Options{})
}
func expectPrintedMinify(t *testing.T, contents string, expected string) {
t.Helper()
expectPrintedCommon(t, contents+" [minified]", contents, expected, Options{
RemoveWhitespace: true,
})
}
func TestImportant(t *testing.T) {
expectPrinted(t, "a { b: c!important }", "a {\n b: c !important;\n}\n")
expectPrinted(t, "a { b: c!important; }", "a {\n b: c !important;\n}\n")
expectPrinted(t, "a { b: c! important }", "a {\n b: c !important;\n}\n")
expectPrinted(t, "a { b: c! important; }", "a {\n b: c !important;\n}\n")
expectPrinted(t, "a { b: c ! important }", "a {\n b: c !important;\n}\n")
expectPrinted(t, "a { b: c ! important; }", "a {\n b: c !important;\n}\n")
expectPrinted(t, "a { b: c !IMPORTANT; }", "a {\n b: c !important;\n}\n")
expectPrinted(t, "a { b: c !ImPoRtAnT; }", "a {\n b: c !important;\n}\n")
expectPrintedMinify(t, "a { b: c !important }", "a{b:c!important}")
}
func TestSelector(t *testing.T) {
expectPrintedMinify(t, "a + b c > d ~ e{}", "a+b c>d~e{}")
expectPrinted(t, ":unknown( x (a+b), 'c' ) {}", ":unknown(x (a+b), 'c') {\n}\n")
expectPrinted(t, ":unknown( x (a-b), 'c' ) {}", ":unknown(x (a-b), 'c') {\n}\n")
expectPrinted(t, ":unknown( x (a,b), 'c' ) {}", ":unknown(x (a, b), 'c') {\n}\n")
expectPrinted(t, ":unknown( x ( a + b ), 'c' ) {}", ":unknown(x (a + b), 'c') {\n}\n")
expectPrinted(t, ":unknown( x ( a - b ), 'c' ) {}", ":unknown(x (a - b), 'c') {\n}\n")
expectPrinted(t, ":unknown( x ( a , b ), 'c' ) {}", ":unknown(x (a, b), 'c') {\n}\n")
expectPrintedMinify(t, ":unknown( x (a+b), 'c' ) {}", ":unknown(x (a+b),'c'){}")
expectPrintedMinify(t, ":unknown( x (a-b), 'c' ) {}", ":unknown(x (a-b),'c'){}")
expectPrintedMinify(t, ":unknown( x (a,b), 'c' ) {}", ":unknown(x (a,b),'c'){}")
expectPrintedMinify(t, ":unknown( x ( a + b ), 'c' ) {}", ":unknown(x (a + b),'c'){}")
expectPrintedMinify(t, ":unknown( x ( a - b ), 'c' ) {}", ":unknown(x (a - b),'c'){}")
expectPrintedMinify(t, ":unknown( x ( a , b ), 'c' ) {}", ":unknown(x (a,b),'c'){}")
}
func TestNestedSelector(t *testing.T) {
expectPrintedMinify(t, "a { &b {} }", "a{&b{}}")
expectPrintedMinify(t, "a { & b {} }", "a{& b{}}")
expectPrintedMinify(t, "a { & :b {} }", "a{& :b{}}")
}
func TestDeclaration(t *testing.T) {
expectPrinted(t, "* { unknown: x (a+b) }", "* {\n unknown: x (a+b);\n}\n")
expectPrinted(t, "* { unknown: x (a-b) }", "* {\n unknown: x (a-b);\n}\n")
expectPrinted(t, "* { unknown: x (a,b) }", "* {\n unknown: x (a, b);\n}\n")
expectPrinted(t, "* { unknown: x ( a + b ) }", "* {\n unknown: x (a + b);\n}\n")
expectPrinted(t, "* { unknown: x ( a - b ) }", "* {\n unknown: x (a - b);\n}\n")
expectPrinted(t, "* { unknown: x ( a , b ) }", "* {\n unknown: x (a, b);\n}\n")
expectPrintedMinify(t, "* { unknown: x (a+b) }", "*{unknown:x (a+b)}")
expectPrintedMinify(t, "* { unknown: x (a-b) }", "*{unknown:x (a-b)}")
expectPrintedMinify(t, "* { unknown: x (a,b) }", "*{unknown:x (a,b)}")
expectPrintedMinify(t, "* { unknown: x ( a + b ) }", "*{unknown:x (a + b)}")
expectPrintedMinify(t, "* { unknown: x ( a - b ) }", "*{unknown:x (a - b)}")
expectPrintedMinify(t, "* { unknown: x ( a , b ) }", "*{unknown:x (a,b)}")
}
func TestAtRule(t *testing.T) {
expectPrintedMinify(t, "@unknown;", "@unknown;")
expectPrintedMinify(t, "@unknown x;", "@unknown x;")
expectPrintedMinify(t, "@unknown{}", "@unknown{}")
expectPrintedMinify(t, "@unknown{\na: b;\nc: d;\n}", "@unknown{a: b; c: d;}")
expectPrinted(t, "@unknown x ( a + b ) ;", "@unknown x (a + b);\n")
expectPrinted(t, "@unknown x ( a - b ) ;", "@unknown x (a - b);\n")
expectPrinted(t, "@unknown x ( a , b ) ;", "@unknown x (a, b);\n")
expectPrintedMinify(t, "@unknown x ( a + b ) ;", "@unknown x (a + b);")
expectPrintedMinify(t, "@unknown x ( a - b ) ;", "@unknown x (a - b);")
expectPrintedMinify(t, "@unknown x ( a , b ) ;", "@unknown x (a,b);")
}
func TestAtCharset(t *testing.T) {
expectPrinted(t, "@charset \"UTF-8\";", "@charset \"UTF-8\";\n")
expectPrintedMinify(t, "@charset \"UTF-8\";", "@charset \"UTF-8\";")
}
func TestAtNamespace(t *testing.T) {
expectPrinted(t, "@namespace\"http://www.com\";", "@namespace \"http://www.com\";\n")
expectPrinted(t, "@namespace \"http://www.com\";", "@namespace \"http://www.com\";\n")
expectPrinted(t, "@namespace url(http://www.com);", "@namespace \"http://www.com\";\n")
expectPrinted(t, "@namespace url(\"http://www.com\");", "@namespace \"http://www.com\";\n")
expectPrinted(t, "@namespace ns\"http://www.com\";", "@namespace ns \"http://www.com\";\n")
expectPrinted(t, "@namespace ns \"http://www.com\";", "@namespace ns \"http://www.com\";\n")
expectPrinted(t, "@namespace ns url(http://www.com);", "@namespace ns \"http://www.com\";\n")
expectPrinted(t, "@namespace ns url(\"http://www.com\");", "@namespace ns \"http://www.com\";\n")
expectPrintedMinify(t, "@namespace\"http://www.com\";", "@namespace\"http://www.com\";")
expectPrintedMinify(t, "@namespace \"http://www.com\";", "@namespace\"http://www.com\";")
expectPrintedMinify(t, "@namespace url(http://www.com);", "@namespace\"http://www.com\";")
expectPrintedMinify(t, "@namespace url(\"http://www.com\");", "@namespace\"http://www.com\";")
expectPrintedMinify(t, "@namespace ns\"http://www.com\";", "@namespace ns\"http://www.com\";")
expectPrintedMinify(t, "@namespace ns \"http://www.com\";", "@namespace ns\"http://www.com\";")
expectPrintedMinify(t, "@namespace ns url(http://www.com);", "@namespace ns\"http://www.com\";")
expectPrintedMinify(t, "@namespace ns url(\"http://www.com\");", "@namespace ns\"http://www.com\";")
}
func TestAtImport(t *testing.T) {
expectPrinted(t, "@import\"foo.css\";", "@import \"foo.css\";\n")
expectPrinted(t, "@import \"foo.css\";", "@import \"foo.css\";\n")
expectPrinted(t, "@import url(foo.css);", "@import \"foo.css\";\n")
expectPrinted(t, "@import url(\"foo.css\");", "@import \"foo.css\";\n")
expectPrintedMinify(t, "@import\"foo.css\";", "@import\"foo.css\";")
expectPrintedMinify(t, "@import \"foo.css\";", "@import\"foo.css\";")
expectPrintedMinify(t, "@import url(foo.css);", "@import\"foo.css\";")
expectPrintedMinify(t, "@import url(\"foo.css\");", "@import\"foo.css\";")
}
func TestAtKeyframes(t *testing.T) {
expectPrintedMinify(t, "@keyframes name { 0%, 50% { color: red } 25%, 75% { color: blue } }",
"@keyframes name{0%,50%{color:red}25%,75%{color:blue}}")
expectPrintedMinify(t, "@keyframes name { from { color: red } to { color: blue } }",
"@keyframes name{from{color:red}to{color:blue}}")
}
func TestAtMedia(t *testing.T) {
expectPrinted(t, "@media screen { div { color: red } }", "@media screen {\n div {\n color: red;\n }\n}\n")
expectPrinted(t, "@media screen{div{color:red}}", "@media screen {\n div {\n color: red;\n }\n}\n")
expectPrintedMinify(t, "@media screen { div { color: red } }", "@media screen{div{color:red}}")
expectPrintedMinify(t, "@media screen{div{color:red}}", "@media screen{div{color:red}}")
}
func TestMsGridColumnsWhitespace(t *testing.T) {
// Must not insert a space between the "]" and the "("
expectPrinted(t, "div { -ms-grid-columns: (1fr)[3] }", "div {\n -ms-grid-columns: (1fr)[3];\n}\n")
expectPrinted(t, "div { -ms-grid-columns: 1fr (20px 1fr)[3] }", "div {\n -ms-grid-columns: 1fr (20px 1fr)[3];\n}\n")
expectPrintedMinify(t, "div { -ms-grid-columns: (1fr)[3] }", "div{-ms-grid-columns:(1fr)[3]}")
expectPrintedMinify(t, "div { -ms-grid-columns: 1fr (20px 1fr)[3] }", "div{-ms-grid-columns:1fr (20px 1fr)[3]}")
}