Give Tag constructors a superclass

[Etiquette] / model.test.js

diff --git a/model.test.js b/model.test.js
index 3e9982a7a4fb513495204b5d80608e4d04f2c6a9..a92671c52d2a4a033ab575172ff6abe7e00f2117 100644 (file)
--- a/model.test.js
+++ b/model.test.js
@@ -164,6 +164,12 @@ describe("TagSystem", () => {
       });
     });
 
+    describe(".constructor", () => {
+      it("[[Get]] is `Function`", () => {
+        assertStrictEquals(Tag.constructor, Function);
+      });
+    });
+
     describe(".fromIRI", () => {
       it("[[Call]] returns the persisted tag with the given I·R·I", () => {
         const tag = new Tag();
@@ -256,12 +262,6 @@ describe("TagSystem", () => {
       });
     });
 
-    describe(".getSystem", () => {
-      it("[[Has]] is not present", () => {
-        assertFalse("getSystem" in Tag);
-      });
-    });
-
     describe(".identifiers", () => {
       it("[[Call]] yields all the persisted identifiers", () => {
         const tags = new Set(function* () {
@@ -411,8 +411,10 @@ describe("TagSystem", () => {
       });
 
       it("[[Call]] throws when this is not a tag which can be placed in canon", () => {
+        const canon = new Tag("CanonTag");
+        canon.persist();
         assertThrows(() => {
-          new Tag().addInCanonTag();
+          new Tag().addInCanonTag(canon);
         });
       });
 
@@ -469,8 +471,10 @@ describe("TagSystem", () => {
       });
 
       it("[[Call]] throws when this is not a conceptual tag", () => {
+        const involved = new Tag();
+        involved.persist();
         assertThrows(() => {
-          new Tag().addInvolvesTag();
+          new Tag().addInvolvesTag(involved);
         });
       });