test(vscode): add integration tests for completion provider guard

editors/vscode/test/completion-scope.test.js

@@ -7,10 +7,48 @@ const Module = require("node:module");
 // Mock the vscode module for unit tests
 const originalLoad = Module._load;
 Module._load = function load(request, parent, isMain) {
-  if (request === "vscode") return {};
+  if (request === "vscode") {
+    return {
+      Position: class Position {
+        constructor(line, character) {
+          this.line = line;
+          this.character = character;
+        }
+      },
+      Range: class Range {
+        constructor(start, end) {
+          this.start = start;
+          this.end = end;
+        }
+      },
+      CompletionItem: class CompletionItem {
+        constructor(label, kind) {
+          this.label = label;
+          this.kind = kind;
+        }
+      },
+      CompletionItemKind: {
+        Event: 23,
+        Property: 10,
+        Function: 12,
+        Keyword: 14,
+        Variable: 13,
+      },
+      SnippetString: class SnippetString {
+        constructor(text) {
+          this.value = text;
+        }
+      },
+      MarkdownString: class MarkdownString {
+        constructor(text) {
+          this.value = text;
+        }
+      },
+    };
+  }
   return originalLoad.call(this, request, parent, isMain);
 };
-const { isInsideViewBlock } = require("../src/completion.js");
+const { isInsideViewBlock, provideCompletionItems } = require("../src/completion.js");
 Module._load = originalLoad;
 
 const PAGE = `page Home {
@@ -30,3 +68,43 @@ test("a markup offset is inside a view block", () => {
 test("a functions-block offset is not inside a view block", () => {
   assert.equal(isInsideViewBlock(PAGE, PAGE.indexOf("function go")), false);
 });
+
+test("provideCompletionItems returns empty array when inside view block", () => {
+  const document = {
+    getText() {
+      return PAGE;
+    },
+    offsetAt(position) {
+      return PAGE.indexOf("<div");
+    },
+    lineAt() {
+      return { text: "<div>hello</div>" };
+    },
+    fileName: "test.wrn",
+  };
+  const position = { line: 2, character: 4 };
+
+  const result = provideCompletionItems(document, position);
+  assert.equal(Array.isArray(result), true);
+  assert.equal(result.length, 0);
+});
+
+test("provideCompletionItems returns non-empty array when inside functions block", () => {
+  const document = {
+    getText() {
+      return PAGE;
+    },
+    offsetAt(position) {
+      return PAGE.indexOf("function go");
+    },
+    lineAt() {
+      return { text: "    function go() {}" };
+    },
+    fileName: "test.wrn",
+  };
+  const position = { line: 5, character: 4 };
+
+  const result = provideCompletionItems(document, position);
+  assert.equal(Array.isArray(result), true);
+  assert(result.length > 0, "should return non-empty completions outside view block");
+});