diff --git a/dune b/dune
index 6260b2e2..9ed2ee1b 100644
--- a/dune
+++ b/dune
@@ -1,4 +1,4 @@
-(dirs :standard \ examples)
+(dirs :standard \ examples test)
 (env
     (dev
       (flags (:standard -warn-error -A))))
\ No newline at end of file
diff --git a/package.json b/package.json
index d40c2cb3..fdb6f0e8 100644
--- a/package.json
+++ b/package.json
@@ -2,6 +2,7 @@
   "name": "rescript-editor-support",
   "version": "1.0.0",
   "scripts": {
+    "test": "cd test && ./test.sh",
     "dce": "dune build @check @all && node_modules/.bin/reanalyze -dce-cmt _build -suppress src/vendor"
   },
   "keywords": [
diff --git a/src/EditorSupportCommands.ml b/src/EditorSupportCommands.ml
index 4e1d801b..1d41c507 100644
--- a/src/EditorSupportCommands.ml
+++ b/src/EditorSupportCommands.ml
@@ -182,6 +182,7 @@ let test ~path =
         if mlen >= 3 then
           match String.sub rest 0 3 with
           | "def" -> definition ~path ~line ~col
+          | "hov" -> hover ~path ~line ~col
           | "com" ->
             let currentFile, cout = Filename.open_temp_file "def" "txt" in
             lines
diff --git a/test.sh b/test.sh
deleted file mode 100755
index 7d48ae7b..00000000
--- a/test.sh
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/bin/zsh
-
-./_build/install/default/bin/rescript-editor-support.exe test test/src/Definition.res
-
-./_build/install/default/bin/rescript-editor-support.exe test test/src/Complete.res
diff --git a/test/bsconfig.json b/test/bsconfig.json
index 0c9eafc6..a65991b9 100644
--- a/test/bsconfig.json
+++ b/test/bsconfig.json
@@ -1,5 +1,6 @@
 {
   "name": "test",
   "sources": "src",
-  "bs-dependencies": ["reason-react"]
-}
\ No newline at end of file
+  "bs-dependencies": ["reason-react"],
+  "reason": { "react-jsx": 3 }
+}
diff --git a/test/package-lock.json b/test/package-lock.json
index 50fe3745..979580da 100644
--- a/test/package-lock.json
+++ b/test/package-lock.json
@@ -1,33 +1,6 @@
 {
-  "name": "test",
-  "lockfileVersion": 2,
   "requires": true,
-  "packages": {
-    "": {
-      "dependencies": {
-        "reason-react": "^0.9.1",
-        "rescript": "9.1.0"
-      }
-    },
-    "node_modules/reason-react": {
-      "version": "0.9.1",
-      "resolved": "https://registry.npmjs.org/reason-react/-/reason-react-0.9.1.tgz",
-      "integrity": "sha512-nlH0O2TDy9KzOLOW+vlEQk4ExHOeciyzFdoLcsmmiit6hx6H5+CVDrwJ+8aiaLT/kqK5xFOjy4PS7PftWz4plA=="
-    },
-    "node_modules/rescript": {
-      "version": "9.1.0",
-      "resolved": "https://registry.npmjs.org/rescript/-/rescript-9.1.0.tgz",
-      "integrity": "sha512-KHBM5SRk4aauUzeDCT3EB5kjly36Olkv+8jmurVJxJAa6L7Sz6AJXzmgZA0cU65/nvdi3InhpNSuxTsDlPj/3A==",
-      "hasInstallScript": true,
-      "bin": {
-        "bsb": "bsb",
-        "bsc": "bsc",
-        "bsrefmt": "bsrefmt",
-        "bstracing": "lib/bstracing",
-        "rescript": "rescript"
-      }
-    }
-  },
+  "lockfileVersion": 1,
   "dependencies": {
     "reason-react": {
       "version": "0.9.1",
diff --git a/test/src/Hover.res b/test/src/Hover.res
index e69de29b..447cf5d8 100644
--- a/test/src/Hover.res
+++ b/test/src/Hover.res
@@ -0,0 +1,2 @@
+let abc = 22 + 34
+//  ^hov
diff --git a/test/src/Jsx.res b/test/src/Jsx.res
new file mode 100644
index 00000000..d28ce76e
--- /dev/null
+++ b/test/src/Jsx.res
@@ -0,0 +1,12 @@
+module M = {
+  @react.component
+  let make = (~first, ~fun="", ~second="") => React.string(first ++ fun++ second)
+}
+
+let d = <M first="abc" />
+//       ^def
+
+//^com <M second=fi 
+
+
+//^com <M second="abc" f
diff --git a/test/expected.txt b/test/src/expected/Complete.res.txt
similarity index 99%
rename from test/expected.txt
rename to test/src/expected/Complete.res.txt
index e94ae057..8b0cc259 100644
--- a/test/expected.txt
+++ b/test/src/expected/Complete.res.txt
@@ -1,4 +1,3 @@
-{"uri": "Definition.res", "range": "{"start": "{"line": "0", "character": "4"}", "end": "{"line": "0", "character": "6"}"}"}
 [{
     "label": "mapReverse",
     "kind": 12,
diff --git a/test/src/expected/Definition.res.txt b/test/src/expected/Definition.res.txt
new file mode 100644
index 00000000..91f01010
--- /dev/null
+++ b/test/src/expected/Definition.res.txt
@@ -0,0 +1 @@
+{"uri": "Definition.res", "range": "{"start": "{"line": "0", "character": "4"}", "end": "{"line": "0", "character": "6"}"}"}
diff --git a/test/src/expected/Hover.res.txt b/test/src/expected/Hover.res.txt
new file mode 100644
index 00000000..f524e45a
--- /dev/null
+++ b/test/src/expected/Hover.res.txt
@@ -0,0 +1 @@
+{"contents": "```rescript\nint\n```"}
diff --git a/test/src/expected/Jsx.res.txt b/test/src/expected/Jsx.res.txt
new file mode 100644
index 00000000..906b98f6
--- /dev/null
+++ b/test/src/expected/Jsx.res.txt
@@ -0,0 +1,21 @@
+{"uri": "Jsx.res", "range": "{"start": "{"line": "2", "character": "6"}", "end": "{"line": "2", "character": "10"}"}"}
+[]
+[{
+    "label": "key",
+    "kind": 4,
+    "tags": [],
+    "detail": "string",
+    "documentation": {"kind": "markdown", "value": "\nJsx.res:11"}
+  }, {
+    "label": "first",
+    "kind": 4,
+    "tags": [],
+    "detail": "string",
+    "documentation": {"kind": "markdown", "value": "\nJsx.res:11"}
+  }, {
+    "label": "fun",
+    "kind": 4,
+    "tags": [],
+    "detail": "option<string>",
+    "documentation": {"kind": "markdown", "value": "\nJsx.res:11"}
+  }]
diff --git a/test/test.sh b/test/test.sh
new file mode 100755
index 00000000..2b97f919
--- /dev/null
+++ b/test/test.sh
@@ -0,0 +1,10 @@
+#!/bin/zsh
+
+function exp {
+  echo "$(dirname $1)/expected/$(basename $1).txt"
+}
+
+./node_modules/.bin/rescript build
+for file in src/**/*.res; do
+  ../_build/install/default/bin/rescript-editor-support.exe test $file &> $(exp $file)
+done