mirror of
https://github.com/zhigang1992/esbuild.git
synced 2026-06-15 09:58:38 +08:00
325 lines
17 KiB
Go
325 lines
17 KiB
Go
package css_parser
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import (
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"testing"
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"github.com/evanw/esbuild/internal/config"
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"github.com/evanw/esbuild/internal/css_printer"
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"github.com/evanw/esbuild/internal/logger"
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"github.com/evanw/esbuild/internal/test"
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)
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func assertEqual(t *testing.T, a interface{}, b interface{}) {
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t.Helper()
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if a != b {
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t.Fatalf("%s != %s", a, b)
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}
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}
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func expectParseError(t *testing.T, contents string, expected string) {
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t.Helper()
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t.Run(contents, func(t *testing.T) {
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t.Helper()
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log := logger.NewDeferLog()
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Parse(log, test.SourceForTest(contents), config.Options{})
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msgs := log.Done()
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text := ""
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for _, msg := range msgs {
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text += msg.String(logger.StderrOptions{}, logger.TerminalInfo{})
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}
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test.AssertEqual(t, text, expected)
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})
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}
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func expectPrintedCommon(t *testing.T, contents string, expected string, options config.Options) {
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t.Helper()
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t.Run(contents, func(t *testing.T) {
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t.Helper()
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log := logger.NewDeferLog()
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tree := Parse(log, test.SourceForTest(contents), options)
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msgs := log.Done()
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text := ""
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for _, msg := range msgs {
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text += msg.String(logger.StderrOptions{}, logger.TerminalInfo{})
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}
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assertEqual(t, text, "")
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css := css_printer.Print(tree, css_printer.Options{})
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assertEqual(t, string(css), expected)
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})
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}
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func expectPrinted(t *testing.T, contents string, expected string) {
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t.Helper()
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expectPrintedCommon(t, contents, expected, config.Options{})
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}
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func expectPrintedMangle(t *testing.T, contents string, expected string) {
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t.Helper()
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expectPrintedCommon(t, contents, expected, config.Options{
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MangleSyntax: true,
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})
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}
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func TestString(t *testing.T) {
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expectPrinted(t, "a:after { content: 'a\\\rb' }", "a:after {\n content: \"ab\";\n}\n")
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expectPrinted(t, "a:after { content: 'a\\\nb' }", "a:after {\n content: \"ab\";\n}\n")
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expectPrinted(t, "a:after { content: 'a\\\fb' }", "a:after {\n content: \"ab\";\n}\n")
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expectPrinted(t, "a:after { content: 'a\\\r\nb' }", "a:after {\n content: \"ab\";\n}\n")
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expectPrinted(t, "a:after { content: 'a\\62 c' }", "a:after {\n content: \"abc\";\n}\n")
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expectParseError(t, "a:after { content: '\r' }",
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`<stdin>: error: Unterminated string token
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<stdin>: error: Expected "}" but found end of file
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<stdin>: error: Unterminated string token
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`)
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expectParseError(t, "a:after { content: '\n' }",
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`<stdin>: error: Unterminated string token
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<stdin>: error: Expected "}" but found end of file
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<stdin>: error: Unterminated string token
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`)
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expectParseError(t, "a:after { content: '\f' }",
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`<stdin>: error: Unterminated string token
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<stdin>: error: Expected "}" but found end of file
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<stdin>: error: Unterminated string token
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`)
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expectParseError(t, "a:after { content: '\r\n' }",
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`<stdin>: error: Unterminated string token
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<stdin>: error: Expected "}" but found end of file
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<stdin>: error: Unterminated string token
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`)
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expectPrinted(t, "a:after { content: '\\1010101' }", "a:after {\n content: \"\U001010101\";\n}\n")
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expectPrinted(t, "a:after { content: '\\invalid' }", "a:after {\n content: \"invalid\";\n}\n")
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}
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func TestDeclaration(t *testing.T) {
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expectPrinted(t, ".decl {}", ".decl {\n}\n")
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expectPrinted(t, ".decl { a: b }", ".decl {\n a: b;\n}\n")
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expectPrinted(t, ".decl { a: b; }", ".decl {\n a: b;\n}\n")
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expectPrinted(t, ".decl { a: b; c: d }", ".decl {\n a: b;\n c: d;\n}\n")
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expectPrinted(t, ".decl { a: b; c: d; }", ".decl {\n a: b;\n c: d;\n}\n")
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expectParseError(t, ".decl { a { b: c; } }", "<stdin>: error: Expected \":\" but found \"{\"\n")
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expectPrinted(t, ".decl { & a { b: c; } }", ".decl {\n & a {\n b: c;\n }\n}\n")
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}
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func TestSelector(t *testing.T) {
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expectPrinted(t, "a{}", "a {\n}\n")
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expectPrinted(t, "a {}", "a {\n}\n")
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expectPrinted(t, "a b {}", "a b {\n}\n")
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expectPrinted(t, "[b]{}", "[b] {\n}\n")
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expectPrinted(t, "[b] {}", "[b] {\n}\n")
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expectPrinted(t, "a[b] {}", "a[b] {\n}\n")
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expectPrinted(t, "a [b] {}", "a [b] {\n}\n")
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expectParseError(t, "[] {}", "<stdin>: error: Expected identifier but found \"]\"\n")
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expectParseError(t, "[b {}", "<stdin>: error: Expected \"]\" but found \"{\"\n")
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expectParseError(t, "[b]] {}", "<stdin>: error: Unexpected \"]\"\n")
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expectParseError(t, "a[b {}", "<stdin>: error: Expected \"]\" but found \"{\"\n")
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expectParseError(t, "a[b]] {}", "<stdin>: error: Unexpected \"]\"\n")
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expectPrinted(t, "[|b]{}", "[b] {\n}\n") // "[|b]" is equivalent to "[b]"
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expectPrinted(t, "[*|b]{}", "[*|b] {\n}\n")
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expectPrinted(t, "[a|b]{}", "[a|b] {\n}\n")
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expectPrinted(t, "[a|b|=\"c\"]{}", "[a|b|=\"c\"] {\n}\n")
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expectPrinted(t, "[a|b |= \"c\"]{}", "[a|b|=\"c\"] {\n}\n")
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expectParseError(t, "[a||b] {}", "<stdin>: error: Expected identifier but found \"|\"\n")
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expectParseError(t, "[* | b] {}", "<stdin>: error: Expected \"|\" but found whitespace\n")
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expectParseError(t, "[a | b] {}", "<stdin>: error: Expected \"=\" but found whitespace\n")
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expectPrinted(t, "[b=\"c\"] {}", "[b=\"c\"] {\n}\n")
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expectPrinted(t, "[b~=\"c\"] {}", "[b~=\"c\"] {\n}\n")
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expectPrinted(t, "[b^=\"c\"] {}", "[b^=\"c\"] {\n}\n")
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expectPrinted(t, "[b$=\"c\"] {}", "[b$=\"c\"] {\n}\n")
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expectPrinted(t, "[b*=\"c\"] {}", "[b*=\"c\"] {\n}\n")
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expectPrinted(t, "[b|=\"c\"] {}", "[b|=\"c\"] {\n}\n")
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expectParseError(t, "[b?=\"c\"] {}", "<stdin>: error: Expected \"]\" but found \"?\"\n")
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expectPrinted(t, "[b = \"c\"] {}", "[b=\"c\"] {\n}\n")
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expectPrinted(t, "[b ~= \"c\"] {}", "[b~=\"c\"] {\n}\n")
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expectPrinted(t, "[b ^= \"c\"] {}", "[b^=\"c\"] {\n}\n")
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expectPrinted(t, "[b $= \"c\"] {}", "[b$=\"c\"] {\n}\n")
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expectPrinted(t, "[b *= \"c\"] {}", "[b*=\"c\"] {\n}\n")
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expectPrinted(t, "[b |= \"c\"] {}", "[b|=\"c\"] {\n}\n")
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expectParseError(t, "[b ?= \"c\"] {}", "<stdin>: error: Expected \"]\" but found \"?\"\n")
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expectPrinted(t, "[b = \"c\" i] {}", "[b=\"c\" i] {\n}\n")
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expectPrinted(t, "[b = \"c\" I] {}", "[b=\"c\" I] {\n}\n")
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expectParseError(t, "[b i] {}", "<stdin>: error: Expected \"]\" but found \"i\"\n<stdin>: error: Unexpected \"]\"\n")
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expectParseError(t, "[b I] {}", "<stdin>: error: Expected \"]\" but found \"I\"\n<stdin>: error: Unexpected \"]\"\n")
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expectPrinted(t, "|b {}", "|b {\n}\n")
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expectPrinted(t, "|* {}", "|* {\n}\n")
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expectPrinted(t, "a|b {}", "a|b {\n}\n")
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expectPrinted(t, "a|* {}", "a|* {\n}\n")
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expectPrinted(t, "*|b {}", "*|b {\n}\n")
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expectPrinted(t, "*|* {}", "*|* {\n}\n")
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expectParseError(t, "a||b {}", "<stdin>: error: Expected identifier but found \"|\"\n")
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expectPrinted(t, "a+b {}", "a + b {\n}\n")
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expectPrinted(t, "a>b {}", "a > b {\n}\n")
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expectPrinted(t, "a+b {}", "a + b {\n}\n")
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expectPrinted(t, "a~b {}", "a ~ b {\n}\n")
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expectPrinted(t, "a + b {}", "a + b {\n}\n")
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expectPrinted(t, "a > b {}", "a > b {\n}\n")
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expectPrinted(t, "a + b {}", "a + b {\n}\n")
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expectPrinted(t, "a ~ b {}", "a ~ b {\n}\n")
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expectPrinted(t, "::b {}", "::b {\n}\n")
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expectPrinted(t, "*::b {}", "*::b {\n}\n")
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expectPrinted(t, "a::b {}", "a::b {\n}\n")
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expectPrinted(t, "::b(c) {}", "::b(c) {\n}\n")
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expectPrinted(t, "*::b(c) {}", "*::b(c) {\n}\n")
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expectPrinted(t, "a::b(c) {}", "a::b(c) {\n}\n")
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expectPrinted(t, "a:b:c {}", "a:b:c {\n}\n")
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expectPrinted(t, "a:b(:c) {}", "a:b(:c) {\n}\n")
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}
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func TestNestedSelector(t *testing.T) {
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expectPrinted(t, "& {}", "& {\n}\n")
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expectPrinted(t, "& b {}", "& b {\n}\n")
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expectPrinted(t, "&:b {}", "&:b {\n}\n")
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expectPrinted(t, "&* {}", "&* {\n}\n")
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expectPrinted(t, "&|b {}", "&|b {\n}\n")
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expectPrinted(t, "&*|b {}", "&*|b {\n}\n")
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expectPrinted(t, "&a|b {}", "&a|b {\n}\n")
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expectPrinted(t, "&[a] {}", "&[a] {\n}\n")
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expectPrinted(t, "a { & {} }", "a {\n & {\n }\n}\n")
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expectPrinted(t, "a { & b {} }", "a {\n & b {\n }\n}\n")
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expectPrinted(t, "a { &:b {} }", "a {\n &:b {\n }\n}\n")
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expectPrinted(t, "a { &* {} }", "a {\n &* {\n }\n}\n")
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expectPrinted(t, "a { &|b {} }", "a {\n &|b {\n }\n}\n")
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expectPrinted(t, "a { &*|b {} }", "a {\n &*|b {\n }\n}\n")
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expectPrinted(t, "a { &a|b {} }", "a {\n &a|b {\n }\n}\n")
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expectPrinted(t, "a { &[b] {} }", "a {\n &[b] {\n }\n}\n")
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}
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func TestAtRule(t *testing.T) {
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expectPrinted(t, "@unknown;", "@unknown;\n")
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expectPrinted(t, "@unknown{}", "@unknown {}\n")
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expectPrinted(t, "@unknown x;", "@unknown x;\n")
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expectPrinted(t, "@unknown{\na: b;\nc: d;\n}", "@unknown { a: b; c: d; }\n")
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expectParseError(t, "@unknown", "<stdin>: error: Expected \"{\" but found end of file\n")
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expectParseError(t, "@", "<stdin>: error: Unexpected \"@\"\n<stdin>: error: Expected \"{\" but found end of file\n")
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expectParseError(t, "@;", "<stdin>: error: Unexpected \"@\"\n<stdin>: error: Expected \"{\" but found end of file\n")
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expectParseError(t, "@{}", "<stdin>: error: Unexpected \"@\"\n")
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}
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func TestAtCharset(t *testing.T) {
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expectPrinted(t, "@charset \"UTF-8\";", "@charset \"UTF-8\";\n")
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expectPrinted(t, "@charset 'UTF-8';", "@charset \"UTF-8\";\n")
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expectParseError(t, "@charset \"US-ASCII\";", "<stdin>: warning: \"UTF-8\" will be used instead of unsupported charset \"US-ASCII\"\n")
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expectParseError(t, "@charset;", "<stdin>: error: Expected whitespace but found \";\"\n")
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expectParseError(t, "@charset ;", "<stdin>: error: Expected string token but found \";\"\n")
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expectParseError(t, "@charset\"UTF-8\";", "<stdin>: error: Expected whitespace but found \"\\\"UTF-8\\\"\"\n")
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expectParseError(t, "@charset \"UTF-8\"", "<stdin>: error: Expected \";\" but found end of file\n")
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expectParseError(t, "@charset url(UTF-8);", "<stdin>: error: Expected string token but found \"url(UTF-8)\"\n")
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expectParseError(t, "@charset url(\"UTF-8\");", "<stdin>: error: Expected string token but found \"url(\"\n")
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expectParseError(t, "@charset \"UTF-8\" ", "<stdin>: error: Expected \";\" but found whitespace\n")
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expectParseError(t, "@charset \"UTF-8\"{}", "<stdin>: error: Expected \";\" but found \"{\"\n")
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}
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func TestAtNamespace(t *testing.T) {
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expectPrinted(t, "@namespace\"http://www.com\";", "@namespace \"http://www.com\";\n")
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expectPrinted(t, "@namespace \"http://www.com\";", "@namespace \"http://www.com\";\n")
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expectPrinted(t, "@namespace \"http://www.com\" ;", "@namespace \"http://www.com\";\n")
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expectPrinted(t, "@namespace url();", "@namespace \"\";\n")
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expectPrinted(t, "@namespace url(http://www.com);", "@namespace \"http://www.com\";\n")
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expectPrinted(t, "@namespace url(http://www.com) ;", "@namespace \"http://www.com\";\n")
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expectPrinted(t, "@namespace url(\"http://www.com\");", "@namespace \"http://www.com\";\n")
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expectPrinted(t, "@namespace url(\"http://www.com\") ;", "@namespace \"http://www.com\";\n")
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expectPrinted(t, "@namespace ns\"http://www.com\";", "@namespace ns \"http://www.com\";\n")
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expectPrinted(t, "@namespace ns \"http://www.com\";", "@namespace ns \"http://www.com\";\n")
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expectPrinted(t, "@namespace ns \"http://www.com\" ;", "@namespace ns \"http://www.com\";\n")
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expectPrinted(t, "@namespace ns url();", "@namespace ns \"\";\n")
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expectPrinted(t, "@namespace ns url(http://www.com);", "@namespace ns \"http://www.com\";\n")
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expectPrinted(t, "@namespace ns url(http://www.com) ;", "@namespace ns \"http://www.com\";\n")
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expectPrinted(t, "@namespace ns url(\"http://www.com\");", "@namespace ns \"http://www.com\";\n")
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expectPrinted(t, "@namespace ns url(\"http://www.com\") ;", "@namespace ns \"http://www.com\";\n")
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expectParseError(t, "@namespace;", "<stdin>: error: Expected URL token but found \";\"\n")
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expectParseError(t, "@namespace \"http://www.com\"", "<stdin>: error: Expected \";\" but found end of file\n")
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expectParseError(t, "@namespace url(\"http://www.com\";", "<stdin>: error: Expected \")\" but found \";\"\n")
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expectParseError(t, "@namespace noturl(\"http://www.com\");", "<stdin>: error: Expected URL token but found \"noturl(\"\n")
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expectParseError(t, "@namespace url(", `<stdin>: error: Expected URL token but found bad URL token
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<stdin>: error: Expected ")" to end URL token
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<stdin>: error: Expected ";" but found end of file
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`)
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expectParseError(t, "@namespace ns;", "<stdin>: error: Expected URL token but found \";\"\n")
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expectParseError(t, "@namespace ns \"http://www.com\"", "<stdin>: error: Expected \";\" but found end of file\n")
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expectParseError(t, "@namespace ns url(\"http://www.com\";", "<stdin>: error: Expected \")\" but found \";\"\n")
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expectParseError(t, "@namespace ns noturl(\"http://www.com\");", "<stdin>: error: Expected URL token but found \"noturl(\"\n")
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expectParseError(t, "@namespace ns url(", `<stdin>: error: Expected URL token but found bad URL token
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<stdin>: error: Expected ")" to end URL token
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<stdin>: error: Expected ";" but found end of file
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`)
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expectParseError(t, "@namespace \"http://www.com\" {}", `<stdin>: error: Expected ";"
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<stdin>: error: Unexpected "{"
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`)
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}
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func TestAtImport(t *testing.T) {
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expectPrinted(t, "@import\"foo.css\";", "@import \"foo.css\";\n")
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expectPrinted(t, "@import \"foo.css\";", "@import \"foo.css\";\n")
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expectPrinted(t, "@import \"foo.css\" ;", "@import \"foo.css\";\n")
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expectPrinted(t, "@import url();", "@import \"\";\n")
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expectPrinted(t, "@import url(foo.css);", "@import \"foo.css\";\n")
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expectPrinted(t, "@import url(foo.css) ;", "@import \"foo.css\";\n")
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expectPrinted(t, "@import url(\"foo.css\");", "@import \"foo.css\";\n")
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expectPrinted(t, "@import url(\"foo.css\") ;", "@import \"foo.css\";\n")
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expectParseError(t, "@import;", "<stdin>: error: Expected URL token but found \";\"\n")
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expectParseError(t, "@import ;", "<stdin>: error: Expected URL token but found \";\"\n")
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expectParseError(t, "@import \"foo.css\"", "<stdin>: error: Expected \";\" but found end of file\n")
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expectParseError(t, "@import url(\"foo.css\";", "<stdin>: error: Expected \")\" but found \";\"\n")
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expectParseError(t, "@import noturl(\"foo.css\");", "<stdin>: error: Expected URL token but found \"noturl(\"\n")
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expectParseError(t, "@import url(", `<stdin>: error: Expected URL token but found bad URL token
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<stdin>: error: Expected ")" to end URL token
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<stdin>: error: Expected ";" but found end of file
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`)
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expectParseError(t, "@import \"foo.css\" {}", `<stdin>: error: Expected ";"
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<stdin>: error: Unexpected "{"
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`)
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}
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func TestAtKeyframes(t *testing.T) {
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expectPrinted(t, "@keyframes name{}", "@keyframes name {\n}\n")
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expectPrinted(t, "@keyframes name {}", "@keyframes name {\n}\n")
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expectPrinted(t, "@keyframes name{0%,50%{color:red}25%,75%{color:blue}}",
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"@keyframes name {\n 0%, 50% {\n color: red;\n }\n 25%, 75% {\n color: blue;\n }\n}\n")
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expectPrinted(t, "@keyframes name { 0%, 50% { color: red } 25%, 75% { color: blue } }",
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"@keyframes name {\n 0%, 50% {\n color: red;\n }\n 25%, 75% {\n color: blue;\n }\n}\n")
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expectPrinted(t, "@keyframes name{from{color:red}to{color:blue}}",
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"@keyframes name {\n from {\n color: red;\n }\n to {\n color: blue;\n }\n}\n")
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expectPrinted(t, "@keyframes name { from { color: red } to { color: blue } }",
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"@keyframes name {\n from {\n color: red;\n }\n to {\n color: blue;\n }\n}\n")
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expectPrinted(t, "@keyframes name { from { color: red } }", "@keyframes name {\n from {\n color: red;\n }\n}\n")
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expectPrinted(t, "@keyframes name { 100% { color: red } }", "@keyframes name {\n 100% {\n color: red;\n }\n}\n")
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expectPrintedMangle(t, "@keyframes name { from { color: red } }", "@keyframes name {\n 0% {\n color: red;\n }\n}\n")
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expectPrintedMangle(t, "@keyframes name { 100% { color: red } }", "@keyframes name {\n to {\n color: red;\n }\n}\n")
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expectPrinted(t, "@-webkit-keyframes name {}", "@-webkit-keyframes name {\n}\n")
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expectPrinted(t, "@-moz-keyframes name {}", "@-moz-keyframes name {\n}\n")
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expectPrinted(t, "@-ms-keyframes name {}", "@-ms-keyframes name {\n}\n")
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expectPrinted(t, "@-o-keyframes name {}", "@-o-keyframes name {\n}\n")
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|
|
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expectParseError(t, "@keyframes {}", "<stdin>: error: Expected identifier but found \"{\"\n")
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expectParseError(t, "@keyframes 'name' {}", "<stdin>: error: Expected identifier but found \"'name'\"\n")
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expectParseError(t, "@keyframes name { 0% 100% {} }", "<stdin>: error: Expected \",\" but found \"100%\"\n")
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expectParseError(t, "@keyframes name { {} 0% {} }", "<stdin>: error: Expected percentage but found \"{\"\n")
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|
expectParseError(t, "@keyframes name { 100 {} }", "<stdin>: error: Expected percentage but found \"100\"\n")
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|
expectParseError(t, "@keyframes name { into {} }", "<stdin>: error: Expected percentage but found \"into\"\n")
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|
expectParseError(t, "@keyframes name { 1,2 {} }", "<stdin>: error: Expected percentage but found \"1\"\n<stdin>: error: Expected percentage but found \"2\"\n")
|
|
expectParseError(t, "@keyframes name { 1, 2 {} }", "<stdin>: error: Expected percentage but found \"1\"\n<stdin>: error: Expected percentage but found \"2\"\n")
|
|
expectParseError(t, "@keyframes name { 1 ,2 {} }", "<stdin>: error: Expected percentage but found \"1\"\n<stdin>: error: Expected percentage but found \"2\"\n")
|
|
expectParseError(t, "@keyframes name { 1%,,2% {} }", "<stdin>: error: Expected percentage but found \",\"\n")
|
|
}
|