diff --git a/tests/arrow-call/jsfmt.spec.js b/tests/arrow-call/jsfmt.spec.js
index 9b85c446c..4e02696c9 100644
--- a/tests/arrow-call/jsfmt.spec.js
+++ b/tests/arrow-call/jsfmt.spec.js
@@ -1,2 +1,2 @@
-run_spec(__dirname);
-run_spec(__dirname, { trailingComma: "all" });
+run_spec(__dirname, null, ["typescript"]);
+run_spec(__dirname, { trailingComma: "all" }, ["typescript"]);
diff --git a/tests/assignment/jsfmt.spec.js b/tests/assignment/jsfmt.spec.js
index 989047bcc..7580dfab0 100644
--- a/tests/assignment/jsfmt.spec.js
+++ b/tests/assignment/jsfmt.spec.js
@@ -1 +1 @@
-run_spec(__dirname);
+run_spec(__dirname, null, ["typescript"]);
diff --git a/tests/assignment_expression/jsfmt.spec.js b/tests/assignment_expression/jsfmt.spec.js
index 989047bcc..7580dfab0 100644
--- a/tests/assignment_expression/jsfmt.spec.js
+++ b/tests/assignment_expression/jsfmt.spec.js
@@ -1 +1 @@
-run_spec(__dirname);
+run_spec(__dirname, null, ["typescript"]);
diff --git a/tests/binary-expressions/jsfmt.spec.js b/tests/binary-expressions/jsfmt.spec.js
index 989047bcc..7580dfab0 100644
--- a/tests/binary-expressions/jsfmt.spec.js
+++ b/tests/binary-expressions/jsfmt.spec.js
@@ -1 +1 @@
-run_spec(__dirname);
+run_spec(__dirname, null, ["typescript"]);
diff --git a/tests/classes/jsfmt.spec.js b/tests/classes/jsfmt.spec.js
index 989047bcc..7580dfab0 100644
--- a/tests/classes/jsfmt.spec.js
+++ b/tests/classes/jsfmt.spec.js
@@ -1 +1 @@
-run_spec(__dirname);
+run_spec(__dirname, null, ["typescript"]);
diff --git a/tests/directives/jsfmt.spec.js b/tests/directives/jsfmt.spec.js
index 1840e9d36..c426c19cc 100644
--- a/tests/directives/jsfmt.spec.js
+++ b/tests/directives/jsfmt.spec.js
@@ -1 +1 @@
-run_spec(__dirname, null, ["babylon"]);
+run_spec(__dirname, null, ["babylon", "typescript"]);
diff --git a/tests/empty/jsfmt.spec.js b/tests/empty/jsfmt.spec.js
index 989047bcc..7580dfab0 100644
--- a/tests/empty/jsfmt.spec.js
+++ b/tests/empty/jsfmt.spec.js
@@ -1 +1 @@
-run_spec(__dirname);
+run_spec(__dirname, null, ["typescript"]);
diff --git a/tests/empty_paren_comment/jsfmt.spec.js b/tests/empty_paren_comment/jsfmt.spec.js
index 1840e9d36..c426c19cc 100644
--- a/tests/empty_paren_comment/jsfmt.spec.js
+++ b/tests/empty_paren_comment/jsfmt.spec.js
@@ -1 +1 @@
-run_spec(__dirname, null, ["babylon"]);
+run_spec(__dirname, null, ["babylon", "typescript"]);
diff --git a/tests/es6modules/jsfmt.spec.js b/tests/es6modules/jsfmt.spec.js
index 0392b2151..b954f7fb8 100644
--- a/tests/es6modules/jsfmt.spec.js
+++ b/tests/es6modules/jsfmt.spec.js
@@ -1,3 +1,3 @@
 run_spec(__dirname);
 // FIXME export_default_function_declaration_async.js flow != babylon output
-run_spec(__dirname, { parser: "babylon" });
+run_spec(__dirname, { parser: "babylon" }, ["typescript"]);
diff --git a/tests/expression_statement/jsfmt.spec.js b/tests/expression_statement/jsfmt.spec.js
index 486444aac..c426c19cc 100755
--- a/tests/expression_statement/jsfmt.spec.js
+++ b/tests/expression_statement/jsfmt.spec.js
@@ -1,2 +1 @@
-// TODO: Re-enable Flow when the following fix is merged facebook/flow#3234.
-run_spec(__dirname, { parser: "babylon" });
+run_spec(__dirname, null, ["babylon", "typescript"]);
diff --git a/tests/first_argument_expansion/jsfmt.spec.js b/tests/first_argument_expansion/jsfmt.spec.js
index 989047bcc..7580dfab0 100644
--- a/tests/first_argument_expansion/jsfmt.spec.js
+++ b/tests/first_argument_expansion/jsfmt.spec.js
@@ -1 +1 @@
-run_spec(__dirname);
+run_spec(__dirname, null, ["typescript"]);
diff --git a/tests/function/jsfmt.spec.js b/tests/function/jsfmt.spec.js
index c3ef1937c..7580dfab0 100644
--- a/tests/function/jsfmt.spec.js
+++ b/tests/function/jsfmt.spec.js
@@ -1 +1 @@
-run_spec(__dirname, null, []);
+run_spec(__dirname, null, ["typescript"]);
diff --git a/tests/line_suffix_boundary/jsfmt.spec.js b/tests/line_suffix_boundary/jsfmt.spec.js
index 1840e9d36..c426c19cc 100644
--- a/tests/line_suffix_boundary/jsfmt.spec.js
+++ b/tests/line_suffix_boundary/jsfmt.spec.js
@@ -1 +1 @@
-run_spec(__dirname, null, ["babylon"]);
+run_spec(__dirname, null, ["babylon", "typescript"]);
diff --git a/tests/literal/jsfmt.spec.js b/tests/literal/jsfmt.spec.js
index c2c47fa7f..7925e7518 100644
--- a/tests/literal/jsfmt.spec.js
+++ b/tests/literal/jsfmt.spec.js
@@ -1,2 +1,2 @@
 // flow-parser@0.38.0 fails to parse `1.e1`, so use babylon here.
-run_spec(__dirname, { parser: "babylon" });
+run_spec(__dirname, { parser: "babylon" }, ["typescript"]);
diff --git a/tests/method-chain/jsfmt.spec.js b/tests/method-chain/jsfmt.spec.js
index 989047bcc..7580dfab0 100644
--- a/tests/method-chain/jsfmt.spec.js
+++ b/tests/method-chain/jsfmt.spec.js
@@ -1 +1 @@
-run_spec(__dirname);
+run_spec(__dirname, null, ["typescript"]);
diff --git a/tests/newline/jsfmt.spec.js b/tests/newline/jsfmt.spec.js
index 989047bcc..7580dfab0 100644
--- a/tests/newline/jsfmt.spec.js
+++ b/tests/newline/jsfmt.spec.js
@@ -1 +1 @@
-run_spec(__dirname);
+run_spec(__dirname, null, ["typescript"]);
diff --git a/tests/non-strict/jsfmt.spec.js b/tests/non-strict/jsfmt.spec.js
index f974ed6c7..6a6711aef 100644
--- a/tests/non-strict/jsfmt.spec.js
+++ b/tests/non-strict/jsfmt.spec.js
@@ -1 +1 @@
-run_spec(__dirname, { parser: "babylon" });
+run_spec(__dirname, { parser: "babylon" }, ["typescript"]);
diff --git a/tests/performance/jsfmt.spec.js b/tests/performance/jsfmt.spec.js
index 989047bcc..7580dfab0 100644
--- a/tests/performance/jsfmt.spec.js
+++ b/tests/performance/jsfmt.spec.js
@@ -1 +1 @@
-run_spec(__dirname);
+run_spec(__dirname, null, ["typescript"]);
diff --git a/tests/range/jsfmt.spec.js b/tests/range/jsfmt.spec.js
index 989047bcc..7580dfab0 100644
--- a/tests/range/jsfmt.spec.js
+++ b/tests/range/jsfmt.spec.js
@@ -1 +1 @@
-run_spec(__dirname);
+run_spec(__dirname, null, ["typescript"]);
diff --git a/tests/return/jsfmt.spec.js b/tests/return/jsfmt.spec.js
index 989047bcc..7580dfab0 100644
--- a/tests/return/jsfmt.spec.js
+++ b/tests/return/jsfmt.spec.js
@@ -1 +1 @@
-run_spec(__dirname);
+run_spec(__dirname, null, ["typescript"]);
diff --git a/tests/sequence_break/jsfmt.spec.js b/tests/sequence_break/jsfmt.spec.js
index 989047bcc..7580dfab0 100644
--- a/tests/sequence_break/jsfmt.spec.js
+++ b/tests/sequence_break/jsfmt.spec.js
@@ -1 +1 @@
-run_spec(__dirname);
+run_spec(__dirname, null, ["typescript"]);
diff --git a/tests/tabWith/jsfmt.spec.js b/tests/tabWith/jsfmt.spec.js
index 1ec983a6b..84d257115 100644
--- a/tests/tabWith/jsfmt.spec.js
+++ b/tests/tabWith/jsfmt.spec.js
@@ -1,2 +1,2 @@
-run_spec(__dirname);
-run_spec(__dirname, { tabWidth: 4 });
+run_spec(__dirname, null, ["typescript"]);
+run_spec(__dirname, { tabWidth: 4 }, ["typescript"]);
diff --git a/tests/trailing_whitespace/jsfmt.spec.js b/tests/trailing_whitespace/jsfmt.spec.js
index 989047bcc..7580dfab0 100644
--- a/tests/trailing_whitespace/jsfmt.spec.js
+++ b/tests/trailing_whitespace/jsfmt.spec.js
@@ -1 +1 @@
-run_spec(__dirname);
+run_spec(__dirname, null, ["typescript"]);
diff --git a/tests/unicode/jsfmt.spec.js b/tests/unicode/jsfmt.spec.js
index 1840e9d36..c426c19cc 100644
--- a/tests/unicode/jsfmt.spec.js
+++ b/tests/unicode/jsfmt.spec.js
@@ -1 +1 @@
-run_spec(__dirname, null, ["babylon"]);
+run_spec(__dirname, null, ["babylon", "typescript"]);