From 317c0644ccf108aa23ef3fd8358bd66c2840bfc0 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 14 Apr 2024 15:40:54 +0200
Subject: Adding upstream version 5:7.2.4.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 tests/support/response_transformers.tcl | 105 ++++++++++++++++++++++++++++++++
 1 file changed, 105 insertions(+)
 create mode 100644 tests/support/response_transformers.tcl

(limited to 'tests/support/response_transformers.tcl')

diff --git a/tests/support/response_transformers.tcl b/tests/support/response_transformers.tcl
new file mode 100644
index 0000000..45b3cf8
--- /dev/null
+++ b/tests/support/response_transformers.tcl
@@ -0,0 +1,105 @@
+# Tcl client library - used by the Redis test
+# Copyright (C) 2009-2023 Redis Ltd.
+# Released under the BSD license like Redis itself
+#
+# This file contains a bunch of commands whose purpose is to transform
+# a RESP3 response to RESP2
+# Why is it needed?
+# When writing the reply_schema part in COMMAND DOCS we decided to use
+# the existing tests in order to verify the schemas (see logreqres.c)
+# The problem was that many tests were relying on the RESP2 structure
+# of the response (e.g. HRANDFIELD WITHVALUES in RESP2: {f1 v1 f2 v2}
+# vs. RESP3: {{f1 v1} {f2 v2}}).
+# Instead of adjusting the tests to expect RESP3 responses (a lot of
+# changes in many files) we decided to transform the response to RESP2
+# when running with --force-resp3
+
+package require Tcl 8.5
+
+namespace eval response_transformers {}
+
+# Transform a map response into an array of tuples (tuple = array with 2 elements)
+# Used for XREAD[GROUP]
+proc transfrom_map_to_tupple_array {argv response} {
+    set tuparray {}
+    foreach {key val} $response {
+        set tmp {}
+        lappend tmp $key
+        lappend tmp $val
+        lappend tuparray $tmp
+    }
+    return $tuparray
+}
+
+# Transform an array of tuples to a flat array
+proc transfrom_tuple_array_to_flat_array {argv response} {
+    set flatarray {}
+    foreach pair $response {
+        lappend flatarray {*}$pair
+    }
+    return $flatarray
+}
+
+# With HRANDFIELD, we only need to transform the response if the request had WITHVALUES
+# (otherwise the returned response is a flat array in both RESPs)
+proc transfrom_hrandfield_command {argv response} {
+    foreach ele $argv {
+        if {[string compare -nocase $ele "WITHVALUES"] == 0} {
+            return [transfrom_tuple_array_to_flat_array $argv $response]
+        }
+    }
+    return $response
+}
+
+# With some zset commands, we only need to transform the response if the request had WITHSCORES
+# (otherwise the returned response is a flat array in both RESPs)
+proc transfrom_zset_withscores_command {argv response} {
+    foreach ele $argv {
+        if {[string compare -nocase $ele "WITHSCORES"] == 0} {
+            return [transfrom_tuple_array_to_flat_array $argv $response]
+        }
+    }
+    return $response
+}
+
+# With ZPOPMIN/ZPOPMAX, we only need to transform the response if the request had COUNT (3rd arg)
+# (otherwise the returned response is a flat array in both RESPs)
+proc transfrom_zpopmin_zpopmax {argv response} {
+    if {[llength $argv] == 3} {
+        return [transfrom_tuple_array_to_flat_array $argv $response]
+    }
+    return $response
+}
+
+set ::trasformer_funcs {
+    XREAD transfrom_map_to_tupple_array
+    XREADGROUP transfrom_map_to_tupple_array
+    HRANDFIELD transfrom_hrandfield_command
+    ZRANDMEMBER transfrom_zset_withscores_command
+    ZRANGE transfrom_zset_withscores_command
+    ZRANGEBYSCORE transfrom_zset_withscores_command
+    ZRANGEBYLEX transfrom_zset_withscores_command
+    ZREVRANGE transfrom_zset_withscores_command
+    ZREVRANGEBYSCORE transfrom_zset_withscores_command
+    ZREVRANGEBYLEX transfrom_zset_withscores_command
+    ZUNION transfrom_zset_withscores_command
+    ZDIFF transfrom_zset_withscores_command
+    ZINTER transfrom_zset_withscores_command
+    ZPOPMIN transfrom_zpopmin_zpopmax
+    ZPOPMAX transfrom_zpopmin_zpopmax
+}
+
+proc ::response_transformers::transform_response_if_needed {id argv response} {
+    if {![::redis::should_transform_to_resp2 $id] || $::redis::readraw($id)} {
+        return $response
+    }
+
+    set key [string toupper [lindex $argv 0]]
+    if {![dict exists $::trasformer_funcs $key]} {
+        return $response
+    }
+
+    set transform [dict get $::trasformer_funcs $key]
+
+    return [$transform $argv $response]
+}
-- 
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