diff --git a/test/sourcemaps/samples/existing-external-sourcemaps-combined/_config.js b/test/sourcemaps/samples/existing-external-sourcemaps-combined/_config.js
deleted file mode 100644
index a377059f3ad..00000000000
--- a/test/sourcemaps/samples/existing-external-sourcemaps-combined/_config.js
+++ /dev/null
@@ -1,9 +0,0 @@
-const assert = require('assert');
-
-module.exports = {
-	description: 'combines existing inline sourcemap comments into one',
-	async test(code) {
-		assert.doesNotMatch(code, /sourceMappingURL=main\.js\.map/);
-		assert.doesNotMatch(code, /sourceMappingURL=other\.js\.map/);
-	},
-};
diff --git a/test/sourcemaps/samples/existing-external-sourcemaps-combined/main.js b/test/sourcemaps/samples/existing-external-sourcemaps-combined/main.js
deleted file mode 100644
index 9f837dbfb00..00000000000
--- a/test/sourcemaps/samples/existing-external-sourcemaps-combined/main.js
+++ /dev/null
@@ -1,4 +0,0 @@
-import value from "./other";
-const s = `other: ${value}`;
-console.log(s);
-//# sourceMappingURL=main.js.map
\ No newline at end of file
diff --git a/test/sourcemaps/samples/existing-external-sourcemaps-combined/main.js.map b/test/sourcemaps/samples/existing-external-sourcemaps-combined/main.js.map
deleted file mode 100644
index 869d5b39321..00000000000
--- a/test/sourcemaps/samples/existing-external-sourcemaps-combined/main.js.map
+++ /dev/null
@@ -1 +0,0 @@
-{"version":3,"file":"main.js","sourceRoot":"","sources":["main.ts"],"names":[],"mappings":"AAAA,OAAO,KAAK,MAAM,SAAS,CAAC;AAE5B,MAAM,CAAC,GAAW,UAAU,KAAK,EAAE,CAAC;AAEpC,OAAO,CAAC,GAAG,CAAC,CAAC,CAAC,CAAC"}
\ No newline at end of file
diff --git a/test/sourcemaps/samples/existing-external-sourcemaps-combined/other.js b/test/sourcemaps/samples/existing-external-sourcemaps-combined/other.js
deleted file mode 100644
index 692376e46d9..00000000000
--- a/test/sourcemaps/samples/existing-external-sourcemaps-combined/other.js
+++ /dev/null
@@ -1,3 +0,0 @@
-const x = "foo";
-export default x;
-//# sourceMappingURL=other.js.map
\ No newline at end of file
diff --git a/test/sourcemaps/samples/existing-external-sourcemaps-combined/other.js.map b/test/sourcemaps/samples/existing-external-sourcemaps-combined/other.js.map
deleted file mode 100644
index 26062a454fa..00000000000
--- a/test/sourcemaps/samples/existing-external-sourcemaps-combined/other.js.map
+++ /dev/null
@@ -1 +0,0 @@
-{"version":3,"file":"other.js","sourceRoot":"","sources":["other.ts"],"names":[],"mappings":"AAAA,MAAM,CAAC,GAAW,KAAK,CAAC;AACxB,eAAe,CAAC,CAAC"}
\ No newline at end of file
diff --git a/test/sourcemaps/samples/existing-inline-sourcemaps-combined/_config.js b/test/sourcemaps/samples/existing-inline-sourcemaps-combined/_config.js
index d77fb87c969..2457b5690f0 100644
--- a/test/sourcemaps/samples/existing-inline-sourcemaps-combined/_config.js
+++ b/test/sourcemaps/samples/existing-inline-sourcemaps-combined/_config.js
@@ -1,8 +1,8 @@
 const assert = require('assert');
 
 module.exports = {
-	description: 'combines existing sourcemap files into one',
+	description: 'removes existing inline sourcemaps',
 	async test(code) {
-		assert.doesNotMatch(code, /sourceMappingURL=data:/);
-	},
+		assert.strictEqual(code.indexOf('sourceMappingURL'), -1);
+	}
 };