1 files changed, 88 insertions, 0 deletions
diff --git a/toolkit/modules/tests/xpcshell/test_JsonSchema.js b/toolkit/modules/tests/xpcshell/test_JsonSchema.js
new file mode 100644
index 0000000000..b3a09049ac
--- /dev/null
+++ b/toolkit/modules/tests/xpcshell/test_JsonSchema.js
@@ -0,0 +1,88 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+const { JsonSchema } = ChromeUtils.importESModule(
+  "resource://gre/modules/JsonSchema.sys.mjs"
+);
+
+add_task(function test_basicSchema() {
+  info("Testing validation of a basic schema");
+  const schema = {
+    type: "object",
+    properties: {
+      id: { type: "number" },
+    },
+    required: ["id"],
+  };
+
+  const validator = new JsonSchema.Validator(schema);
+
+  Assert.deepEqual(
+    JsonSchema.validate({ id: 123 }, schema),
+    { valid: true, errors: [] },
+    "Validation of basic schemas with validate()"
+  );
+
+  Assert.deepEqual(
+    validator.validate({ id: 123 }, schema),
+    { valid: true, errors: [] },
+    "Validation of basic schemas with Validator"
+  );
+
+  Assert.ok(
+    !JsonSchema.validate({}, schema).valid,
+    "Validation of basic schemas with validate()"
+  );
+  Assert.ok(
+    !validator.validate({}).valid,
+    "Validation of basic schemas with Validator"
+  );
+});
+
+add_task(function test_mozUrlFormat() {
+  info("Testing custom string format 'moz-url-format'");
+  const schema = {
+    type: "string",
+    format: "moz-url-format",
+  };
+
+  {
+    const obj = "https://www.mozilla.org/%LOCALE%/";
+    Assert.deepEqual(
+      JsonSchema.validate(obj, schema),
+      { valid: true, errors: [] },
+      "Substitution of a valid variable validates"
+    );
+  }
+
+  {
+    const obj = "https://mozilla.org/%BOGUS%/";
+
+    Assert.equal(
+      Services.urlFormatter.formatURL(obj),
+      obj,
+      "BOGUS is an invalid variable for the URL formatter service"
+    );
+
+    Assert.ok(
+      !JsonSchema.validate(obj, { type: "string", format: "uri" }).valid,
+      "A moz-url-format string does not validate as a URI"
+    );
+
+    Assert.deepEqual(
+      JsonSchema.validate(obj, schema),
+      {
+        valid: false,
+        errors: [
+          {
+            instanceLocation: "#",
+            keyword: "format",
+            keywordLocation: "#/format",
+            error: `String does not match format "moz-url-format".`,
+          },
+        ],
+      },
+      "Substitution of an invalid variable does not validate"
+    );
+  }
+});