quick fix for blob bug

property_tests/arbitraries/canister_arb.ts

@@ -6,7 +6,12 @@ import { InitMethod } from './canister_methods/init_method_arb';
 import { PostUpgradeMethod } from './canister_methods/post_upgrade_arb';
 import { PreUpgradeMethod } from './canister_methods/pre_upgrade_method_arb';
 import { CorrespondingJSType } from './candid/corresponding_js_type';
-import { TextClass, FloatClass } from '@dfinity/candid/lib/cjs/idl';
+import {
+    TextClass,
+    FloatClass,
+    FixedNatClass,
+    VecClass
+} from '@dfinity/candid/lib/cjs/idl';
 
 TextClass.prototype.valueToString = (x): string => {
     return `"${escapeForBash(x)}"`;
@@ -24,6 +29,26 @@ FloatClass.prototype.valueToString = (x): string => {
     return floatString + '.0';
 };
 
+// Remove this when it is no longer necessary
+// TODO https://github.com/demergent-labs/azle/issues/1597
+VecClass.prototype.valueToString = function (x): string {
+    const elements = Array.from(x).map((e): string => {
+        // @ts-ignore
+        return this._type.valueToString(e);
+    });
+    return 'vec {' + elements.join('; ') + '}';
+};
+
+// Remove this when it is no longer necessary
+// TODO https://github.com/demergent-labs/azle/issues/1597
+FixedNatClass.prototype.valueToString = function (x): string {
+    const natString = x.toString();
+    if (this._bits === 8) {
+        return `${natString}: nat8`;
+    }
+    return natString;
+};
+
 export type Canister = {
     initArgs: string[] | undefined;
     postUpgradeArgs: string[] | undefined;