Testsuite: move test.again.dns and test.fail.dns handling to fakens

[exim.git] / test / README

diff --git a/test/README b/test/README
index 2a3fa00c8ec29309f8bdc2b2299e15145c114e62..7bf4ceea550febabfc546bf09cafb13d2c5526d0 100644 (file)
--- a/test/README
+++ b/test/README
@@ -114,7 +114,7 @@ In order to run this test suite, the following requirements must be met:
     is also an IPv6 address, additional tests are run when the Exim binary
     contains IPv6 support. There are checks in the scripts for a running IPv4
     interface; when one is not found, some tests are skipped (with a warning
-    message).
+    message).  The local net may not be in 10.0/8 as that is used by the suite.
 
 (9) Exim must be built with TRUSTED_CONFIG_LIST support, so that the test
     configs can be placed into it.  A suitable file location is .../exim/test/trusted_configs
@@ -1134,8 +1134,15 @@ directory by applying the standard substitutions. The test suite also builds
 dynamic zone files for the name of the current host and its IP address(es). The
 idea is that there should not be any need to rely on an external DNS.
 
-The domain names that are handled directly by Exim, without being passed to
-fakens, are:
+The fakens program handles some names programmatically rather than using the
+fake zone files.  These are:
+
+  manyhome.test.ex  This name is used for testing hosts with ridiculously large
+                    numbers of IP addresses; 2048 IP addresses are generated
+                    and returned. Doing it this way saves having to make the
+                    interface to fakens handle more records that can fit in the
+                    data block. The addresses that are generated are in the
+                    10.250.0.0/16 network.
 
   test.again.dns    This always provokes a TRY_AGAIN response, for testing the
                     handling of temporary DNS error. If the full domain name
@@ -1144,23 +1151,12 @@ fakens, are:
   test.fail.dns     This always provokes a NO_RECOVERY response, for testing
                     DNS server failures.
 
-This special handling could now be done in the fakens program, but while the
-old test suite is still being used it has to be done in Exim itself, so for the
-moment it remains there.
-
 The use of gethostbyname() and its IPv6 friends is also subverted when Exim is
 running in the test harness. The test code handles a few special names
 directly; for all the others it uses DNS lookups, which are then handled as
 just described. Thus, the use of /etc/hosts is completely bypassed. The names
 that are specially handled are:
 
-  manyhome.test.ex  This name is used for testing hosts with ridiculously large
-                    numbers of IP addresses; 2048 IP addresses are generated
-                    and returned. Doing it this way saves having to make the
-                    interface to fakens handle more records that can fit in the
-                    data block. The addresses that are generated are in the
-                    10.250.0.0/16 network.
-
   localhost         Always returns 127.0.0.1 or ::1, for IPv4 and IPv6 lookups,
                     respectively.