diff --git a/test/scanner/client.test.js b/test/scanner/client.test.js
index 6886eb1..b0cfe7e 100644
--- a/test/scanner/client.test.js
+++ b/test/scanner/client.test.js
@@ -97,6 +97,16 @@ describe.concurrent('Apps', async () => {
             // Expect that machoMeta.architectures is an array
             expect( Array.isArray( scan.info.machoMeta.architectures ) ).toBe( true )
 
+            // Expect that processorType is a string
+            expect( typeof scan.info.machoMeta.architectures[0].processorType ).toBe( 'string' )
+
+            const validCPUTypes = [
+                'ANY', 'VAX', 'MC680', 'X86', 'MIPS', 'MC98000', 'HPPA', 'ARM', 'ARM64', 'MC88000', 'SPARC', 'I860', 'POWERPC', 'POWERPC64'
+            ]
+
+            // Expect that processorType is a valid CPU type
+            expect( validCPUTypes.includes( scan.info.machoMeta.architectures[0].processorType ) ).toBe( true )
+
             // Expect that first of machoMeta.architectures has processorSubType as string
             expect( typeof scan.info.machoMeta.architectures[0].processorSubType ).toBeTruthy()