Added test for noEmitOnError

Author: DickvdBrink

Diff for: src/harness/compilerRunner.ts

@@ -175,7 +175,12 @@ class CompilerBaselineRunner extends RunnerBase {
             it('Correct sourcemap content for ' + fileName, () => {
                 if (options.sourceMap) {
                     Harness.Baseline.runBaseline('Correct sourcemap content for ' + fileName, justName.replace(/\.ts$/, '.sourcemap.txt'), () => {
-                        return result.getSourceMapRecord();
+                        var record = result.getSourceMapRecord();
+                        if (options.noEmitOnError && result.errors.length !== 0 && record === undefined) {
+                            // Because of the noEmitOnError option no files are created. We need to return null because baselining isn't required.
+                            return null;
+                        }
+                        return record;
                     });
                 }
             });
@@ -246,6 +251,12 @@ class CompilerBaselineRunner extends RunnerBase {
                     }
 
                     Harness.Baseline.runBaseline('Correct Sourcemap output for ' + fileName, justName.replace(/\.ts/, '.js.map'), () => {
+                        if (options.noEmitOnError && result.errors.length !== 0 && result.sourceMaps.length === 0) {
+                            // We need to return null here or the runBaseLine will actually create a empty file.
+                            // Baselining isn't required here because there is no output.
+                            return null;
+                        }
+
                         var sourceMapCode = '';
                         for (var i = 0; i < result.sourceMaps.length; i++) {
                             sourceMapCode += '//// [' + Harness.Path.getFileName(result.sourceMaps[i].fileName) + ']\r\n';

Diff for: src/harness/harness.ts

@@ -703,6 +703,10 @@ module Harness {
                             }
                             break;
 
+                        case 'noemitonerror':
+                            options.noEmitOnError = !!setting.value;
+                            break;
+
                         case 'noresolve':
                             options.noResolve = !!setting.value;
                             break;
@@ -1145,7 +1149,7 @@ module Harness {
         var optionRegex = /^[\/]{2}\s*@(\w+)\s*:\s*(\S*)/gm;  // multiple matches on multiple lines
 
         // List of allowed metadata names
-        var fileMetadataNames = ["filename", "comments", "declaration", "module", "nolib", "sourcemap", "target", "out", "outdir", "noimplicitany", "noresolve", "newline", "newlines", "emitbom", "errortruncation", "usecasesensitivefilenames"];
+        var fileMetadataNames = ["filename", "comments", "declaration", "module", "nolib", "sourcemap", "target", "out", "outdir", "noemitonerror", "noimplicitany", "noresolve", "newline", "newlines", "emitbom", "errortruncation", "usecasesensitivefilenames"];
 
         function extractCompilerSettings(content: string): CompilerSetting[] {
 

Diff for: tests/baselines/reference/noEmitOnError.errors.txt

@@ -0,0 +1,9 @@
+tests/cases/compiler/noEmitOnError.ts(2,5): error TS2323: Type 'string' is not assignable to type 'number'.
+
+
+==== tests/cases/compiler/noEmitOnError.ts (1 errors) ====
+    
+    var x: number = "";
+        ~
+!!! error TS2323: Type 'string' is not assignable to type 'number'.
+    

Diff for: tests/cases/compiler/noEmitOnError.ts

@@ -0,0 +1,5 @@
+// @noemitonerror: true
+// @sourcemap: true
+// @declaration: true
+
+var x: number = "";