diff --git a/src/__snapshots__/lexer.test.ts.snap b/src/__snapshots__/lexer.test.ts.snap
deleted file mode 100644
index 54e3f64..0000000
--- a/src/__snapshots__/lexer.test.ts.snap
+++ /dev/null
@@ -1,114 +0,0 @@
-// Jest Snapshot v1, https://goo.gl/fbAQLP
-
-exports[`should tokenize an emtpy function 1`] = `
-[
-  {
-    "kind": "function",
-    "span": Span {
-      "end": 8,
-      "file": {
-        "content": "function hello() = ;",
-      },
-      "start": 0,
-    },
-  },
-  {
-    "ident": "hello",
-    "kind": "identifier",
-    "span": Span {
-      "end": 14,
-      "file": {
-        "content": "function hello() = ;",
-      },
-      "start": 9,
-    },
-  },
-  {
-    "kind": "(",
-    "span": Span {
-      "end": 15,
-      "file": {
-        "content": "function hello() = ;",
-      },
-      "start": 14,
-    },
-  },
-  {
-    "kind": ")",
-    "span": Span {
-      "end": 16,
-      "file": {
-        "content": "function hello() = ;",
-      },
-      "start": 15,
-    },
-  },
-  {
-    "kind": "=",
-    "span": Span {
-      "end": 18,
-      "file": {
-        "content": "function hello() = ;",
-      },
-      "start": 17,
-    },
-  },
-  {
-    "kind": ";",
-    "span": Span {
-      "end": 20,
-      "file": {
-        "content": "function hello() = ;",
-      },
-      "start": 19,
-    },
-  },
-]
-`;
-
-exports[`should tokenize hello world 1`] = `
-[
-  {
-    "ident": "print",
-    "kind": "identifier",
-    "span": Span {
-      "end": 5,
-      "file": {
-        "content": "print("hello world")",
-      },
-      "start": 0,
-    },
-  },
-  {
-    "kind": "(",
-    "span": Span {
-      "end": 6,
-      "file": {
-        "content": "print("hello world")",
-      },
-      "start": 5,
-    },
-  },
-  {
-    "kind": "lit_string",
-    "span": Span {
-      "end": 19,
-      "file": {
-        "content": "print("hello world")",
-      },
-      "start": 6,
-    },
-    "value": "hello world",
-  },
-  {
-    "kind": ")",
-    "span": Span {
-      "end": 20,
-      "file": {
-        "content": "print("hello world")",
-      },
-      "start": 19,
-    },
-  },
-]
-`;
diff --git a/src/lexer.test.ts b/src/lexer.test.ts
index cac08d3..3bcedd3 100644
--- a/src/lexer.test.ts
+++ b/src/lexer.test.ts
@@ -7,7 +7,71 @@ it("should tokenize an emtpy function", () => {
   const tokens = tokenize(new ErrorHandler(false), { content: input });
   if (!tokens.ok) unreachable("lexer error");
 
-  expect(tokens.tokens).toMatchSnapshot();
+  expect(tokens.tokens).toMatchInlineSnapshot(`
+    [
+      {
+        "kind": "function",
+        "span": Span {
+          "end": 8,
+          "file": {
+            "content": "function hello() = ;",
+          },
+          "start": 0,
+        },
+      },
+      {
+        "ident": "hello",
+        "kind": "identifier",
+        "span": Span {
+          "end": 14,
+          "file": {
+            "content": "function hello() = ;",
+          },
+          "start": 9,
+        },
+      },
+      {
+        "kind": "(",
+        "span": Span {
+          "end": 15,
+          "file": {
+            "content": "function hello() = ;",
+          },
+          "start": 14,
+        },
+      },
+      {
+        "kind": ")",
+        "span": Span {
+          "end": 16,
+          "file": {
+            "content": "function hello() = ;",
+          },
+          "start": 15,
+        },
+      },
+      {
+        "kind": "=",
+        "span": Span {
+          "end": 18,
+          "file": {
+            "content": "function hello() = ;",
+          },
+          "start": 17,
+        },
+      },
+      {
+        "kind": ";",
+        "span": Span {
+          "end": 20,
+          "file": {
+            "content": "function hello() = ;",
+          },
+          "start": 19,
+        },
+      },
+    ]
+  `);
 });
 
 it("should tokenize hello world", () => {
@@ -16,5 +80,50 @@ it("should tokenize hello world", () => {
   const tokens = tokenize(new ErrorHandler(false), { content: input });
   if (!tokens.ok) unreachable("lexer error");
 
-  expect(tokens.tokens).toMatchSnapshot();
+  expect(tokens.tokens).toMatchInlineSnapshot(`
+    [
+      {
+        "ident": "print",
+        "kind": "identifier",
+        "span": Span {
+          "end": 5,
+          "file": {
+            "content": "print("hello world")",
+          },
+          "start": 0,
+        },
+      },
+      {
+        "kind": "(",
+        "span": Span {
+          "end": 6,
+          "file": {
+            "content": "print("hello world")",
+          },
+          "start": 5,
+        },
+      },
+      {
+        "kind": "lit_string",
+        "span": Span {
+          "end": 19,
+          "file": {
+            "content": "print("hello world")",
+          },
+          "start": 6,
+        },
+        "value": "hello world",
+      },
+      {
+        "kind": ")",
+        "span": Span {
+          "end": 20,
+          "file": {
+            "content": "print("hello world")",
+          },
+          "start": 19,
+        },
+      },
+    ]
+  `);
 });
diff --git a/ui-tests/resolve/module_not_found.stderr b/ui-tests/resolve/module_not_found.stderr
index ffe3235..84e444b 100644
--- a/ui-tests/resolve/module_not_found.stderr
+++ b/ui-tests/resolve/module_not_found.stderr
@@ -1,4 +1,8 @@
-error: cannot find list
+error: expected `=`, found `,`
  --> $DIR/module_not_found.nil:2
-2 |   let _l = list.new();
-               ^^^^
+2 |   let _false, l = list.new();
+                ^
+error: `main` function not found
+ --> $DIR/module_not_found.nil:1
+1 | function main() = (
+    ^