From 5c04674e96f3586aa943b8a3a63741b81ff00ab7 Mon Sep 17 00:00:00 2001
From: Graeme Smecher <gsmecher@threespeedlogic.com>
Date: Mon, 12 Jul 2021 12:27:24 -0700
Subject: [PATCH 1/2] Generate useful parameterization IDs for complex()
 numbers.

---
 AUTHORS                    | 1 +
 changelog/8898.trivial.rst | 1 +
 src/_pytest/python.py      | 2 +-
 testing/python/metafunc.py | 2 ++
 4 files changed, 5 insertions(+), 1 deletion(-)
 create mode 100644 changelog/8898.trivial.rst

diff --git a/AUTHORS b/AUTHORS
index 16a53d94b..d6004f33d 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -125,6 +125,7 @@ Gene Wood
 George Kussumoto
 Georgy Dyuldin
 Gleb Nikonorov
+Graeme Smecher
 Graham Horler
 Greg Price
 Gregory Lee
diff --git a/changelog/8898.trivial.rst b/changelog/8898.trivial.rst
new file mode 100644
index 000000000..d725157cf
--- /dev/null
+++ b/changelog/8898.trivial.rst
@@ -0,0 +1 @@
+Complex numbers are now treated like floats and integers when generating parameterization IDs.
diff --git a/src/_pytest/python.py b/src/_pytest/python.py
index f7dfd696b..d6c14ea52 100644
--- a/src/_pytest/python.py
+++ b/src/_pytest/python.py
@@ -1334,7 +1334,7 @@ def _idval(
 
     if isinstance(val, STRING_TYPES):
         return _ascii_escaped_by_config(val, config)
-    elif val is None or isinstance(val, (float, int, bool)):
+    elif val is None or isinstance(val, (float, int, bool, complex)):
         return str(val)
     elif isinstance(val, REGEX_TYPE):
         return ascii_escaped(val.pattern)
diff --git a/testing/python/metafunc.py b/testing/python/metafunc.py
index 4a4b141c4..ccf9c1d9c 100644
--- a/testing/python/metafunc.py
+++ b/testing/python/metafunc.py
@@ -403,6 +403,7 @@ class TestMetafunc:
                 pytest.param(tuple("eight"), (8, -8, 8)),
                 pytest.param(b"\xc3\xb4", b"name"),
                 pytest.param(b"\xc3\xb4", "other"),
+                pytest.param(1.0j, -2.0j),
             ],
         )
         assert result == [
@@ -418,6 +419,7 @@ class TestMetafunc:
             "a9-b9",
             "\\xc3\\xb4-name",
             "\\xc3\\xb4-other",
+            "1j-(-0-2j)",
         ]
 
     def test_idmaker_non_printable_characters(self) -> None:

From 3c18a9ecd0aec0e25504219a2ad77431bc1baba3 Mon Sep 17 00:00:00 2001
From: Bruno Oliveira <nicoddemus@gmail.com>
Date: Mon, 12 Jul 2021 18:09:13 -0300
Subject: [PATCH 2/2] Rename 8898.trivial.rst to 8898.improvement.rst

---
 changelog/{8898.trivial.rst => 8898.improvement.rst} | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 rename changelog/{8898.trivial.rst => 8898.improvement.rst} (100%)

diff --git a/changelog/8898.trivial.rst b/changelog/8898.improvement.rst
similarity index 100%
rename from changelog/8898.trivial.rst
rename to changelog/8898.improvement.rst