unit test for absolute windows paths in source map

Author: evanw

internal/bundler_tests/bundler_loader_test.go

@@ -1786,3 +1786,89 @@ func TestLoaderTextUTF8BOM(t *testing.T) {
 		},
 	})
 }
+
+// See: https://github.com/evanw/esbuild/issues/4075
+func TestLoaderInlineSourceMapAbsolutePathIssue4075Unix(t *testing.T) {
+	urlEncodedUnix := "%22file%3A%2F%2F%2Fout%2Fsrc%2Fstyles1.scss%22" // file:///out/src/styles1.scss
+	pathEncodedUnix := "%22%2Fout%2Fsrc%2Fstyles2.scss%22"             // /out/src/styles2.scss
+
+	loader_suite.expectBundledUnix(t, bundled{
+		files: map[string]string{
+			"/home/user/project/src/entry.css": `
+				@import "./styles1.css";
+				@import "./styles2.css";
+			`,
+			"/home/user/project/src/styles1.css": `/* You can add global styles to this file, and also import other style files */
+			* {
+				content: "foo";
+			}
+
+			/*# sourceMappingURL=data:application/json;charset=utf-8,%7B%22version%22:3,` +
+				`%22sourceRoot%22:%22%22,%22sources%22:%5B` + urlEncodedUnix + `%5D,%22n` +
+				`ames%22:%5B%5D,%22mappings%22:%22AAAA;AACA;EACE,SAAS%22,%22file%22:%22o` +
+				`ut%22,%22sourcesContent%22:%5B%22/*%20You%20can%20add%20global%20styles` +
+				`%20to%20this%20file,%20and%20also%20import%20other%20style%20files%20%2` +
+				`A/%5Cn*%20%7B%5Cn%20%20content:%20%5C%22foo%5C%22%5Cn%7D%5Cn%22%5D%7D */`,
+			"/home/user/project/src/styles2.css": `/* You can add global styles to this file, and also import other style files */
+			* {
+				content: "bar";
+			}
+
+			/*# sourceMappingURL=data:application/json;charset=utf-8,%7B%22version%22:3,` +
+				`%22sourceRoot%22:%22%22,%22sources%22:%5B` + pathEncodedUnix + `%5D,%22` +
+				`names%22:%5B%5D,%22mappings%22:%22AAAA;AACA;EACE,SAAS%22,%22file%22:%22` +
+				`out%22,%22sourcesContent%22:%5B%22/*%20You%20can%20add%20global%20style` +
+				`s%20to%20this%20file,%20and%20also%20import%20other%20style%20files%20%` +
+				`2A/%5Cn*%20%7B%5Cn%20%20content:%20%5C%22bar%5C%22%5Cn%7D%5Cn%22%5D%7D */`,
+		},
+		entryPaths: []string{"/home/user/project/src/entry.css"},
+		options: config.Options{
+			Mode:         config.ModeBundle,
+			SourceMap:    config.SourceMapLinkedWithComment,
+			AbsOutputDir: "/out",
+		},
+	})
+}
+
+// See: https://github.com/evanw/esbuild/issues/4075
+func TestLoaderInlineSourceMapAbsolutePathIssue4075Windows(t *testing.T) {
+	urlEncodedWin := "%22file%3A%2F%2F%2FC%3A%2Fout%2Fsrc%2Fstyles1.scss%22" // file:///C:/out/src/styles1.scss
+	pathEncodedWin := "%22C%3A%5C%5Cout%5C%5Csrc%5C%5Cstyles2.scss%22"       // C:\out\src\styles2.scss
+
+	loader_suite.expectBundledWindows(t, bundled{
+		files: map[string]string{
+			"/home/user/project/src/entry.css": `
+				@import "./styles1.css";
+				@import "./styles2.css";
+			`,
+			"/home/user/project/src/styles1.css": `/* You can add global styles to this file, and also import other style files */
+			* {
+				content: "foo";
+			}
+
+			/*# sourceMappingURL=data:application/json;charset=utf-8,%7B%22version%22:3,` +
+				`%22sourceRoot%22:%22%22,%22sources%22:%5B` + urlEncodedWin + `%5D,%22n` +
+				`ames%22:%5B%5D,%22mappings%22:%22AAAA;AACA;EACE,SAAS%22,%22file%22:%22o` +
+				`ut%22,%22sourcesContent%22:%5B%22/*%20You%20can%20add%20global%20styles` +
+				`%20to%20this%20file,%20and%20also%20import%20other%20style%20files%20%2` +
+				`A/%5Cn*%20%7B%5Cn%20%20content:%20%5C%22foo%5C%22%5Cn%7D%5Cn%22%5D%7D */`,
+			"/home/user/project/src/styles2.css": `/* You can add global styles to this file, and also import other style files */
+			* {
+				content: "bar";
+			}
+
+			/*# sourceMappingURL=data:application/json;charset=utf-8,%7B%22version%22:3,` +
+				`%22sourceRoot%22:%22%22,%22sources%22:%5B` + pathEncodedWin + `%5D,%22` +
+				`names%22:%5B%5D,%22mappings%22:%22AAAA;AACA;EACE,SAAS%22,%22file%22:%22` +
+				`out%22,%22sourcesContent%22:%5B%22/*%20You%20can%20add%20global%20style` +
+				`s%20to%20this%20file,%20and%20also%20import%20other%20style%20files%20%` +
+				`2A/%5Cn*%20%7B%5Cn%20%20content:%20%5C%22bar%5C%22%5Cn%7D%5Cn%22%5D%7D */`,
+		},
+		entryPaths: []string{"/home/user/project/src/entry.css"},
+		options: config.Options{
+			Mode:         config.ModeBundle,
+			SourceMap:    config.SourceMapLinkedWithComment,
+			AbsOutputDir: "/out",
+		},
+	})
+}

internal/bundler_tests/snapshots/snapshots_loader.txt

@@ -902,6 +902,56 @@ var file_default = "This should not be base64 encoded";
 // entry.js
 console.log(file_default);
 
+================================================================================
+TestLoaderInlineSourceMapAbsolutePathIssue4075Unix
+---------- /out/entry.css.map ----------
+{
+  "version": 3,
+  "sources": ["src/styles1.scss", "src/styles2.scss"],
+  "sourcesContent": ["/* You can add global styles to this file, and also import other style files */\n* {\n  content: \"foo\"\n}\n", "/* You can add global styles to this file, and also import other style files */\n* {\n  content: \"bar\"\n}\n"],
+  "mappings": ";AACA;AACE,WAAS;;;;ACDX;AACE,WAAS;;",
+  "names": []
+}
+
+---------- /out/entry.css ----------
+/* home/user/project/src/styles1.css */
+* {
+  content: "foo";
+}
+
+/* home/user/project/src/styles2.css */
+* {
+  content: "bar";
+}
+
+/* home/user/project/src/entry.css */
+/*# sourceMappingURL=entry.css.map */
+
+================================================================================
+TestLoaderInlineSourceMapAbsolutePathIssue4075Windows
+---------- /out/entry.css.map ----------
+{
+  "version": 3,
+  "sources": ["src/styles1.scss", "src/styles2.scss"],
+  "sourcesContent": ["/* You can add global styles to this file, and also import other style files */\n* {\n  content: \"foo\"\n}\n", "/* You can add global styles to this file, and also import other style files */\n* {\n  content: \"bar\"\n}\n"],
+  "mappings": ";AACA;AACE,WAAS;;;;ACDX;AACE,WAAS;;",
+  "names": []
+}
+
+---------- /out/entry.css ----------
+/* home/user/project/src/styles1.css */
+* {
+  content: "foo";
+}
+
+/* home/user/project/src/styles2.css */
+* {
+  content: "bar";
+}
+
+/* home/user/project/src/entry.css */
+/*# sourceMappingURL=entry.css.map */
+
 ================================================================================
 TestLoaderJSONCommonJSAndES6
 ---------- /out.js ----------