template.js: Add test for "or" helper.

frontend_tests/node_tests/templates.js

@@ -15,3 +15,12 @@ run_test("and", () => {
     const html = require("./templates/and.hbs")(args);
     assert.equal(html, "<p>empty and</p>\n<p>last and</p>\n\n");
 });
+
+run_test("or", () => {
+    const args = {
+        last: true,
+    };
+
+    const html = require("./templates/or.hbs")(args);
+    assert.equal(html, "\n<p>last or</p>\n<p>true or</p>\n");
+});

frontend_tests/node_tests/templates/or.hbs

@@ -0,0 +1,3 @@
+{{#if (or)}}<p>empty or</p>{{/if}}
+{{#if (or false last)}}<p>last or</p>{{/if}}
+{{#if (or true false)}}<p>true or</p>{{/if}}