(#329) Remove leftover string type checks

Author: s1hofmann

lib/assert.class.ts

@@ -8,7 +8,7 @@ export class AssertClass {
     }
 
     public async isVisible(needle: FirstArgumentType<typeof ScreenClass.prototype.find>, searchRegion?: Region, confidence?: number) {
-        const identifier = (typeof needle === "string") ? needle : (await needle).id;
+        const identifier = (await needle).id;
 
         try {
             await this.screen.find(
@@ -27,7 +27,7 @@ export class AssertClass {
     }
 
     public async notVisible(needle: FirstArgumentType<typeof ScreenClass.prototype.find>, searchRegion?: Region, confidence?: number) {
-        const identifier = (typeof needle === "string") ? needle : (await needle).id;
+        const identifier = (await needle).id;
 
         try {
             await this.screen.find(

lib/expect/matchers/toShow.function.ts

@@ -12,15 +12,16 @@ export const toShow = async (
         locationParams = new LocationParameters();
         locationParams.confidence = confidence;
     }
+    const identifier = (await needle).id;
     try {
         await received.find(needle, locationParams);
         return {
-            message: () => `Expected screen to not show ${needle}`,
+            message: () => `Expected screen to not show ${identifier}`,
             pass: true,
         };
     } catch (err) {
         return {
-            message: () => `Screen is not showing ${needle}: ${err}`,
+            message: () => `Screen is not showing ${identifier}: ${err}`,
             pass: false,
         };
     }