Merge branch 'master' into rootDir

src/testRunner/unittests/tsbuild/demo.ts

@@ -11,7 +11,7 @@ namespace ts {
 
         verifyTsc({
             scenario: "demo",
-            subScenario: "in master branch with everything setup correctly, reports no error",
+            subScenario: "in master branch with everything setup correctly and reports no error",
             fs: () => projFs,
             commandLineArgs: ["--b", "/src/tsconfig.json", "--verbose"]
         });

src/testRunner/unittests/tsbuild/emptyFiles.ts

@@ -10,14 +10,14 @@ namespace ts {
 
         verifyTsc({
             scenario: "emptyFiles",
-            subScenario: "does not have empty files diagnostic when files is empty and references are provided",
+            subScenario: "has empty files diagnostic when files is empty and no references are provided",
             fs: () => projFs,
             commandLineArgs: ["--b", "/src/no-references"],
         });
 
         verifyTsc({
             scenario: "emptyFiles",
-            subScenario: "has empty files diagnostic when files is empty and no references are provided",
+            subScenario: "does not have empty files diagnostic when files is empty and references are provided",
             fs: () => projFs,
             commandLineArgs: ["--b", "/src/with-references"],
         });

src/testRunner/unittests/tsc/helpers.ts

@@ -60,7 +60,7 @@ namespace ts {
 
         sys.write(`${sys.getExecutingFilePath()} ${commandLineArgs.join(" ")}\n`);
         sys.exit = exitCode => sys.exitCode = exitCode;
-        ts.executeCommandLine(
+        executeCommandLine(
             sys,
             {
                 onCompilerHostCreate: host => fakes.patchHostForBuildInfoReadWrite(host),

src/testRunner/unittests/tsc/incremental.ts

@@ -37,6 +37,24 @@ namespace ts {
             incrementalScenarios: [noChangeRun]
         });
 
+        verifyTscIncrementalEdits({
+            scenario: "incremental",
+            subScenario: "with only dts files",
+            fs: () => loadProjectFromFiles({
+                "/src/project/src/main.d.ts": "export const x = 10;",
+                "/src/project/src/another.d.ts": "export const y = 10;",
+                "/src/project/tsconfig.json": "{}",
+            }),
+            commandLineArgs: ["--incremental", "--p", "src/project"],
+            incrementalScenarios: [
+                noChangeRun,
+                {
+                    buildKind: BuildKind.IncrementalDtsUnchanged,
+                    modifyFs: fs => appendText(fs, "/src/project/src/main.d.ts", "export const xy = 100;")
+                }
+            ]
+        });
+
         verifyTscIncrementalEdits({
             scenario: "incremental",
             subScenario: "when passing rootDir is in the tsconfig",