add enum valueof() unit test

src/smartcontracts/typesystem/enum.spec.ts

@@ -4,6 +4,7 @@ import { U8Type, U8Value } from "./numerical";
 import { Field, FieldDefinition } from "./fields";
 import { EnumType, EnumValue, EnumVariantDefinition } from "./enum";
 import { StringType, StringValue } from "./string";
+import BigNumber from "bignumber.js";
 
 describe("test enums", () => {
     it("should get fields", () => {
@@ -41,5 +42,74 @@ describe("test enums", () => {
         assert.throw(() => green.getFieldValue("3"), errors.ErrMissingFieldOnEnum);
         assert.throw(() => orange.getFieldValue("1"), errors.ErrMissingFieldOnEnum);
     });
+
+    it("should get valueOf()", () => {
+        // Define variants
+        let greenVariant = new EnumVariantDefinition("Green", 0, [
+            new FieldDefinition("0", "red component", new U8Type()),
+            new FieldDefinition("1", "green component", new U8Type()),
+            new FieldDefinition("2", "blue component", new U8Type()),
+        ]);
+
+        let orangeVariant = new EnumVariantDefinition("Orange", 1, [
+            new FieldDefinition("0", "hex code", new StringType())
+        ]);
+
+        let yellowVariant = new EnumVariantDefinition("Yellow", 2, [
+            new FieldDefinition("red", "red component", new U8Type()),
+            new FieldDefinition("green", "green component", new U8Type()),
+            new FieldDefinition("blue", "blue component", new U8Type()),
+        ]);
+
+        // Define enum type
+        let enumType = new EnumType("Colour", [
+            greenVariant,
+            orangeVariant,
+            yellowVariant
+        ]);
+
+        // Create enum values
+        let green = new EnumValue(enumType, greenVariant, [
+            new Field(new U8Value(0), "0"),
+            new Field(new U8Value(255), "1"),
+            new Field(new U8Value(0), "2")
+        ]);
+
+        let orange = new EnumValue(enumType, orangeVariant, [
+            new Field(new StringValue("#FFA500"), "0")
+        ]);
+
+        let yellow = new EnumValue(enumType, yellowVariant, [
+            new Field(new U8Value(255), "red"),
+            new Field(new U8Value(255), "green"),
+            new Field(new U8Value(0), "blue")
+        ]);
+
+        // Test valueOf()
+        assert.deepEqual(green.valueOf(), {
+            "name": "Green",
+            "fields": [
+                new BigNumber(0),
+                new BigNumber(255),
+                new BigNumber(0)
+            ]
+        });
+
+        assert.deepEqual(orange.valueOf(), {
+            "name": "Orange",
+            "fields": [
+                "#FFA500"
+            ]
+        });
+
+        assert.deepEqual(yellow.valueOf(), {
+            "name": "Yellow",
+            "fields": [
+                new BigNumber(255),
+                new BigNumber(255),
+                new BigNumber(0)
+            ]
+        });
+    });
 });