diff --git a/integration-tests/test-extension/src/main/resources/application.properties b/integration-tests/test-extension/src/main/resources/application.properties
index 93c02a609e0503..f0e0f2e6a638ca 100644
--- a/integration-tests/test-extension/src/main/resources/application.properties
+++ b/integration-tests/test-extension/src/main/resources/application.properties
@@ -6,3 +6,98 @@ quarkus.log.file.format=%d{HH:mm:ss} %-5p [%c{2.}]] (%t) %s%e%n
 
 # Resource path to DSAPublicKey base64 encoded bytes
 quarkus.root.dsa-key-location=/DSAPublicKey.encoded
+
+### Configuration settings for the TestBuildTimeConfig config root
+quarkus.bt.bt-string-opt=btStringOptValue
+quarkus.bt.bt-sbv=StringBasedValue
+# This is not set so that we should get the @ConfigItem defaultValue
+#quarkus.bt.bt-sbv-with-default=StringBasedValue
+quarkus.bt.all-values.oov=configPart1+configPart2
+quarkus.bt.all-values.ovo=configPart1+configPart2
+# This is not set so that we should get the @ConfigItem defaultValue
+#quarkus.bt.bt-oov-with-default=ObjectOfValue
+quarkus.bt.all-values.long-primitive=1234567891
+quarkus.bt.all-values.double-primitive=3.1415926535897932384
+quarkus.bt.all-values.long-value=1234567892
+quarkus.bt.all-values.opt-long-value=1234567893
+quarkus.bt.all-values.opt-double-value=3.1415926535897932384
+quarkus.bt.all-values.optional-long-value=1234567894
+quarkus.bt.all-values.nested-config-map.key1.nested-value=value1
+quarkus.bt.all-values.nested-config-map.key1.oov=value1.1+value1.2
+quarkus.bt.all-values.nested-config-map.key2.nested-value=value2
+quarkus.bt.all-values.nested-config-map.key2.oov=value2.1+value2.2
+quarkus.bt.all-values.string-list=value1,value2
+quarkus.bt.all-values.long-list=1,2,3
+
+### Duplicate settings for the TestBuildAndRunTimeConfig. May be able to drop if ConfigRoot inheritance is added
+quarkus.btrt.bt-string-opt=btStringOptValue
+quarkus.btrt.bt-sbv=StringBasedValue
+quarkus.btrt.all-values.oov=configPart1+configPart2
+quarkus.btrt.all-values.ovo=configPart1+configPart2
+quarkus.btrt.all-values.long-primitive=1234567891
+quarkus.btrt.all-values.double-primitive=3.1415926535897932384
+quarkus.btrt.all-values.long-value=1234567892
+quarkus.btrt.all-values.opt-long-value=1234567893
+quarkus.btrt.all-values.opt-double-value=3.1415926535897932384
+quarkus.btrt.all-values.optional-long-value=1234567894
+quarkus.btrt.all-values.nested-config-map.key1.nested-value=value1
+quarkus.btrt.all-values.nested-config-map.key1.oov=value1.1+value1.2
+quarkus.btrt.all-values.nested-config-map.key2.nested-value=value2
+quarkus.btrt.all-values.nested-config-map.key2.oov=value2.1+value2.2
+quarkus.btrt.all-values.string-list=value1,value2
+quarkus.btrt.all-values.long-list=1,2,3
+
+### Configuration settings for the TestRunTimeConfig config root
+quarkus.rt.rt-string-opt=rtStringOptValue
+quarkus.rt.rt-string-opt-with-default=rtStringOptWithDefaultValue
+quarkus.rt.all-values.oov=configPart1+configPart2
+quarkus.rt.all-values.ovo=configPart1+configPart2
+quarkus.rt.all-values.long-primitive=12345678911
+quarkus.rt.all-values.double-primitive=3.1415926535897932384
+quarkus.rt.all-values.long-value=12345678921
+quarkus.rt.all-values.opt-long-value=12345678931
+quarkus.rt.all-values.opt-double-value=3.1415926535897932384
+quarkus.rt.all-values.optional-long-value=12345678941
+quarkus.rt.all-values.nested-config-map.key1.nested-value=value1
+quarkus.rt.all-values.nested-config-map.key1.oov=value1.1+value1.2
+quarkus.rt.all-values.nested-config-map.key2.nested-value=value2
+quarkus.rt.all-values.nested-config-map.key2.oov=value2.1+value2.2
+quarkus.rt.all-values.string-list=value1,value2
+quarkus.rt.all-values.long-list=1,2,3
+# A nested map of properties
+quarkus.rt.all-values.string-map.key1=value1
+quarkus.rt.all-values.string-map.key2=value2
+quarkus.rt.all-values.string-map.key3=value3
+# And list form
+quarkus.rt.all-values.string-list-map.key1=value1,value2,value3
+quarkus.rt.all-values.string-list-map.key2=value4,value5
+quarkus.rt.all-values.string-list-map.key3=value6
+# A root map of properties
+quarkus.rt.string-map.key1=value1
+quarkus.rt.string-map.key2=value2
+quarkus.rt.string-map.key3=value3
+# And list form
+quarkus.rt.string-list-map.key1=value1
+quarkus.rt.string-list-map.key2=value2,value3
+quarkus.rt.string-list-map.key3=value4,value5,value6
+
+### run time configuration using enhanced converters
+quarkus.rt.my-enum=enum-two
+quarkus.rt.my-enums=enum-one,enum-two
+quarkus.rt.my-optional-enums=optional
+quarkus.rt.no-hyphenate-first-enum=ENUM_ONE
+quarkus.rt.no-hyphenate-second-enum=Enum_Two
+quarkus.rt.primitive-boolean=YES
+quarkus.rt.object-boolean=NO
+quarkus.rt.primitive-integer=two
+quarkus.rt.object-integer=nine
+quarkus.rt.one-to-nine=one,two,three,four,five,six,seven,eight,nine
+quarkus.rt.map-of-numbers.key1=one
+quarkus.rt.map-of-numbers.key2=two
+
+
+### build time and run time configuration using enhanced converters
+quarkus.btrt.map-of-numbers.key1=one
+quarkus.btrt.map-of-numbers.key2=two
+quarkus.btrt.my-enum=optional
+quarkus.btrt.my-enums=optional,enum-one,enum-two