Add test to check S3Config can be applied (#1982)

Closes #1880

Author: timyates

aws-sdk-v2/src/test/groovy/io/micronaut/aws/sdk/v2/service/S3ConfigurationSpec.groovy

@@ -0,0 +1,27 @@
+package io.micronaut.aws.sdk.v2.service
+
+import io.micronaut.aws.sdk.v2.service.s3.S3ConfigurationProperties
+import io.micronaut.context.ApplicationContext
+import spock.lang.Issue
+import spock.lang.Specification
+
+@Issue("https://github.com/micronaut-projects/micronaut-aws/issues/1880")
+class S3ConfigurationSpec extends Specification {
+
+    void "path-style-access-enabled can be configured to be #enabled"() {
+        when:
+        ApplicationContext ctx = ApplicationContext.run(
+                'aws.s3.path-style-access-enabled': enabled
+        )
+        S3ConfigurationProperties config = ctx.getBean(S3ConfigurationProperties)
+
+        then:
+        config.builder.pathStyleAccessEnabled() == enabled
+
+        cleanup:
+        ctx.close()
+
+        where:
+        enabled << [true, false]
+    }
+}