diff --git a/test/fixtures/experimental/export-extensions/default-and-ns/actual.js b/test/fixtures/experimental/export-extensions/default-and-ns/actual.js
new file mode 100644
index 0000000000..01fa3e806a
--- /dev/null
+++ b/test/fixtures/experimental/export-extensions/default-and-ns/actual.js
@@ -0,0 +1 @@
+export B, * as A from 'test';
diff --git a/test/fixtures/experimental/export-extensions/default-and-ns/expected.json b/test/fixtures/experimental/export-extensions/default-and-ns/expected.json
new file mode 100644
index 0000000000..5880077cce
--- /dev/null
+++ b/test/fixtures/experimental/export-extensions/default-and-ns/expected.json
@@ -0,0 +1,135 @@
+{
+  "type": "File",
+  "start": 0,
+  "end": 29,
+  "loc": {
+    "start": {
+      "line": 1,
+      "column": 0
+    },
+    "end": {
+      "line": 1,
+      "column": 29
+    }
+  },
+  "program": {
+    "type": "Program",
+    "start": 0,
+    "end": 29,
+    "loc": {
+      "start": {
+        "line": 1,
+        "column": 0
+      },
+      "end": {
+        "line": 1,
+        "column": 29
+      }
+    },
+    "sourceType": "module",
+    "body": [
+      {
+        "type": "ExportNamedDeclaration",
+        "start": 0,
+        "end": 29,
+        "loc": {
+          "start": {
+            "line": 1,
+            "column": 0
+          },
+          "end": {
+            "line": 1,
+            "column": 29
+          }
+        },
+        "specifiers": [
+          {
+            "type": "ExportDefaultSpecifier",
+            "start": 7,
+            "end": 8,
+            "loc": {
+              "start": {
+                "line": 1,
+                "column": 7
+              },
+              "end": {
+                "line": 1,
+                "column": 8
+              }
+            },
+            "exported": {
+              "type": "Identifier",
+              "start": 7,
+              "end": 8,
+              "loc": {
+                "start": {
+                  "line": 1,
+                  "column": 7
+                },
+                "end": {
+                  "line": 1,
+                  "column": 8
+                },
+                "identifierName": "B"
+              },
+              "name": "B"
+            }
+          },
+          {
+            "type": "ExportNamespaceSpecifier",
+            "start": 10,
+            "end": 16,
+            "loc": {
+              "start": {
+                "line": 1,
+                "column": 10
+              },
+              "end": {
+                "line": 1,
+                "column": 16
+              }
+            },
+            "exported": {
+              "type": "Identifier",
+              "start": 15,
+              "end": 16,
+              "loc": {
+                "start": {
+                  "line": 1,
+                  "column": 15
+                },
+                "end": {
+                  "line": 1,
+                  "column": 16
+                },
+                "identifierName": "A"
+              },
+              "name": "A"
+            }
+          }
+        ],
+        "source": {
+          "type": "StringLiteral",
+          "start": 22,
+          "end": 28,
+          "loc": {
+            "start": {
+              "line": 1,
+              "column": 22
+            },
+            "end": {
+              "line": 1,
+              "column": 28
+            }
+          },
+          "extra": {
+            "rawValue": "test",
+            "raw": "'test'"
+          },
+          "value": "test"
+        }
+      }
+    ],
+    "directives": []
+  }
+}
\ No newline at end of file
diff --git a/test/fixtures/experimental/export-extensions/default/actual.js b/test/fixtures/experimental/export-extensions/default/actual.js
new file mode 100644
index 0000000000..8493ca5743
--- /dev/null
+++ b/test/fixtures/experimental/export-extensions/default/actual.js
@@ -0,0 +1 @@
+export A from 'test';
diff --git a/test/fixtures/experimental/export-extensions/default/expected.json b/test/fixtures/experimental/export-extensions/default/expected.json
new file mode 100644
index 0000000000..850834e228
--- /dev/null
+++ b/test/fixtures/experimental/export-extensions/default/expected.json
@@ -0,0 +1,103 @@
+{
+  "type": "File",
+  "start": 0,
+  "end": 21,
+  "loc": {
+    "start": {
+      "line": 1,
+      "column": 0
+    },
+    "end": {
+      "line": 1,
+      "column": 21
+    }
+  },
+  "program": {
+    "type": "Program",
+    "start": 0,
+    "end": 21,
+    "loc": {
+      "start": {
+        "line": 1,
+        "column": 0
+      },
+      "end": {
+        "line": 1,
+        "column": 21
+      }
+    },
+    "sourceType": "module",
+    "body": [
+      {
+        "type": "ExportNamedDeclaration",
+        "start": 0,
+        "end": 21,
+        "loc": {
+          "start": {
+            "line": 1,
+            "column": 0
+          },
+          "end": {
+            "line": 1,
+            "column": 21
+          }
+        },
+        "specifiers": [
+          {
+            "type": "ExportDefaultSpecifier",
+            "start": 7,
+            "end": 8,
+            "loc": {
+              "start": {
+                "line": 1,
+                "column": 7
+              },
+              "end": {
+                "line": 1,
+                "column": 8
+              }
+            },
+            "exported": {
+              "type": "Identifier",
+              "start": 7,
+              "end": 8,
+              "loc": {
+                "start": {
+                  "line": 1,
+                  "column": 7
+                },
+                "end": {
+                  "line": 1,
+                  "column": 8
+                },
+                "identifierName": "A"
+              },
+              "name": "A"
+            }
+          }
+        ],
+        "source": {
+          "type": "StringLiteral",
+          "start": 14,
+          "end": 20,
+          "loc": {
+            "start": {
+              "line": 1,
+              "column": 14
+            },
+            "end": {
+              "line": 1,
+              "column": 20
+            }
+          },
+          "extra": {
+            "rawValue": "test",
+            "raw": "'test'"
+          },
+          "value": "test"
+        }
+      }
+    ],
+    "directives": []
+  }
+}
\ No newline at end of file
diff --git a/test/fixtures/experimental/export-extensions/ns/actual.js b/test/fixtures/experimental/export-extensions/ns/actual.js
new file mode 100644
index 0000000000..27357f4758
--- /dev/null
+++ b/test/fixtures/experimental/export-extensions/ns/actual.js
@@ -0,0 +1 @@
+export * as A from 'test';
diff --git a/test/fixtures/experimental/export-extensions/ns/expected.json b/test/fixtures/experimental/export-extensions/ns/expected.json
new file mode 100644
index 0000000000..b1affb10e9
--- /dev/null
+++ b/test/fixtures/experimental/export-extensions/ns/expected.json
@@ -0,0 +1,103 @@
+{
+  "type": "File",
+  "start": 0,
+  "end": 26,
+  "loc": {
+    "start": {
+      "line": 1,
+      "column": 0
+    },
+    "end": {
+      "line": 1,
+      "column": 26
+    }
+  },
+  "program": {
+    "type": "Program",
+    "start": 0,
+    "end": 26,
+    "loc": {
+      "start": {
+        "line": 1,
+        "column": 0
+      },
+      "end": {
+        "line": 1,
+        "column": 26
+      }
+    },
+    "sourceType": "module",
+    "body": [
+      {
+        "type": "ExportNamedDeclaration",
+        "start": 0,
+        "end": 26,
+        "loc": {
+          "start": {
+            "line": 1,
+            "column": 0
+          },
+          "end": {
+            "line": 1,
+            "column": 26
+          }
+        },
+        "specifiers": [
+          {
+            "type": "ExportNamespaceSpecifier",
+            "start": 7,
+            "end": 13,
+            "loc": {
+              "start": {
+                "line": 1,
+                "column": 7
+              },
+              "end": {
+                "line": 1,
+                "column": 13
+              }
+            },
+            "exported": {
+              "type": "Identifier",
+              "start": 12,
+              "end": 13,
+              "loc": {
+                "start": {
+                  "line": 1,
+                  "column": 12
+                },
+                "end": {
+                  "line": 1,
+                  "column": 13
+                },
+                "identifierName": "A"
+              },
+              "name": "A"
+            }
+          }
+        ],
+        "source": {
+          "type": "StringLiteral",
+          "start": 19,
+          "end": 25,
+          "loc": {
+            "start": {
+              "line": 1,
+              "column": 19
+            },
+            "end": {
+              "line": 1,
+              "column": 25
+            }
+          },
+          "extra": {
+            "rawValue": "test",
+            "raw": "'test'"
+          },
+          "value": "test"
+        }
+      }
+    ],
+    "directives": []
+  }
+}
\ No newline at end of file
diff --git a/test/fixtures/experimental/export-extensions/options.json b/test/fixtures/experimental/export-extensions/options.json
new file mode 100644
index 0000000000..15b0cf1ea2
--- /dev/null
+++ b/test/fixtures/experimental/export-extensions/options.json
@@ -0,0 +1,4 @@
+{
+  "plugins": ["exportExtensions"],
+  "sourceType": "module"
+}