diff --git a/init.lua b/init.lua
index be57943..ccb4063 100644
--- a/init.lua
+++ b/init.lua
@@ -51,10 +51,10 @@ local tests = {
 		if not eeprom then return "SKIP" end
 
 		local code = component.invoke(eeprom, 'get');
-		if not code then return "FAIL" end
+		if type(code) ~= "string" then return "FAIL" end
 
 		local data = component.invoke(eeprom, 'getData');
-		if not data then return "FAIL" end
+		if type(data) ~= "string" then return "FAIL" end
 
 		return "PASS"
 	end},
@@ -70,10 +70,10 @@ local tests = {
 		end
 
 		local code = component.invoke(eeprom, 'get');
-		if not code then return "FAIL" end
+		if type(code) ~= "string" then return "FAIL" end
 
 		local data = component.invoke(eeprom, 'getData');
-		if not data then return "FAIL" end
+		if type(data) ~= "string" then return "FAIL" end
 
 		local testData = "HELLO MY NAME IS BLENDI GOOSE AND I AM WRITING THIS CODE RIGHT NOW; wow what a good test message thank you, me."
 
@@ -98,6 +98,8 @@ local tests = {
 		local label, err = component.invoke(eeprom, 'getLabel');
 		if err then return "FAIL" end
 
+		if (label ~= nil) and (type(label) ~= "string") then return "FAIL" end
+
 		return "PASS"
 	end},
 	{name = "eeprom: r/w label", run = function()
@@ -113,6 +115,7 @@ local tests = {
 
 		local label, err = component.invoke(eeprom, 'getLabel');
 		if err then return "FAIL" end
+		if (label ~= nil) and (type(label) ~= "string") then return "FAIL" end
 
 		local testlabel = "I AM A TEST"
 		component.invoke(eeprom, 'setLabel', testlabel);
@@ -126,9 +129,9 @@ local tests = {
 	{name = "eeprom: other methods", run = function()
 		local eeprom = component.list('eeprom')();
 
-		if not component.invoke(eeprom, 'getSize') then return "FAIL" end
-		if not component.invoke(eeprom, 'getDataSize') then return "FAIL" end
-		if not component.invoke(eeprom, 'getChecksum') then return "FAIL" end
+		if type(component.invoke(eeprom, 'getSize')) ~= "number" then return "FAIL" end
+		if type(component.invoke(eeprom, 'getDataSize')) ~= "number" then return "FAIL" end
+		if type(component.invoke(eeprom, 'getChecksum')) ~= "string" then return "FAIL" end
 
 		return "PASS"
 	end}