add failing test for #1004

src/index.spec.ts

@@ -379,6 +379,14 @@ describe('ts-node', function () {
           expect(err).to.equal(null)
           expect(stdout).to.equal('.ts\n')
 
+          return done()
+        })
+      })
+      it('should read tsconfig relative to realpath, not symlink, in scriptMode', function (done) {
+        exec(`node ${BIN_SCRIPT_PATH} tests/main-realpath/symlink/symlink.ts`, function (err, stdout) {
+          expect(err).to.equal(null)
+          expect(stdout).to.equal('')
+
           return done()
         })
       })

tests/main-realpath/symlink/symlink.ts

@@ -0,0 +1 @@
+../target/index.ts

tests/main-realpath/symlink/tsconfig.json

@@ -0,0 +1 @@
+this tsconfig is intentionally invalid, to confirm that ts-node does *not* attempt to parse it

tests/main-realpath/target/index.ts

@@ -0,0 +1,2 @@
+// Will throw a compiler error unless ./tsconfig.json is parsed, which enables downlevelIteration
+for(const b of new Set()) {}

tests/main-realpath/target/tsconfig.json

@@ -0,0 +1,5 @@
+{
+  "compilerOptions": {
+    "downlevelIteration": true
+  }
+}