diff --git a/poetry.lock b/poetry.lock
index e999d3af..34184977 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -174,6 +174,14 @@ category = "dev"
 optional = false
 python-versions = "*"
 
+[[package]]
+name = "icdiff"
+version = "1.9.1"
+description = "improved colored diff"
+category = "dev"
+optional = false
+python-versions = "*"
+
 [[package]]
 name = "importlib-metadata"
 version = "4.5.0"
@@ -382,6 +390,14 @@ importlib-metadata = {version = ">=0.12", markers = "python_version < \"3.8\""}
 [package.extras]
 dev = ["pre-commit", "tox"]
 
+[[package]]
+name = "pprintpp"
+version = "0.4.0"
+description = "A drop-in replacement for pprint that's actually pretty"
+category = "dev"
+optional = false
+python-versions = "*"
+
 [[package]]
 name = "py"
 version = "1.10.0"
@@ -453,6 +469,19 @@ py = "*"
 pytest = ">=4.3"
 six = ">=1.9.0"
 
+[[package]]
+name = "pytest-icdiff"
+version = "0.5"
+description = "use icdiff for better error messages in pytest assertions"
+category = "dev"
+optional = false
+python-versions = ">=3.6"
+
+[package.dependencies]
+icdiff = "*"
+pprintpp = "*"
+pytest = "*"
+
 [[package]]
 name = "python-dateutil"
 version = "2.8.1"
@@ -629,7 +658,7 @@ testing = ["pytest (>=4.6)", "pytest-checkdocs (>=1.2.3)", "pytest-flake8", "pyt
 [metadata]
 lock-version = "1.1"
 python-versions = ">=3.7.0, <3.10"
-content-hash = "4bb72b50e012bd9b58e47835e1fd5d767ce68ac869505f77bb6ad9d564dbf139"
+content-hash = "a0d3f3e30dbe80528547b49ae7bb39c6c1a911e2552d8b10d409daf81cdb28d1"
 
 [metadata.files]
 ansiwrap = [
@@ -730,6 +759,9 @@ ghp-import = [
 glob2 = [
     {file = "glob2-0.7.tar.gz", hash = "sha256:85c3dbd07c8aa26d63d7aacee34fa86e9a91a3873bc30bf62ec46e531f92ab8c"},
 ]
+icdiff = [
+    {file = "icdiff-1.9.1.tar.gz", hash = "sha256:66972dd03318da55280991db375d3ef6b66d948c67af96c1ebdb21587e86655e"},
+]
 importlib-metadata = [
     {file = "importlib_metadata-4.5.0-py3-none-any.whl", hash = "sha256:833b26fb89d5de469b24a390e9df088d4e52e4ba33b01dc5e0e4f41b81a16c00"},
     {file = "importlib_metadata-4.5.0.tar.gz", hash = "sha256:b142cc1dd1342f31ff04bb7d022492b09920cb64fed867cd3ea6f80fe3ebd139"},
@@ -828,6 +860,10 @@ pluggy = [
     {file = "pluggy-0.13.1-py2.py3-none-any.whl", hash = "sha256:966c145cd83c96502c3c3868f50408687b38434af77734af1e9ca461a4081d2d"},
     {file = "pluggy-0.13.1.tar.gz", hash = "sha256:15b2acde666561e1298d71b523007ed7364de07029219b604cf808bfa1c765b0"},
 ]
+pprintpp = [
+    {file = "pprintpp-0.4.0-py2.py3-none-any.whl", hash = "sha256:b6b4dcdd0c0c0d75e4d7b2f21a9e933e5b2ce62b26e1a54537f9651ae5a5c01d"},
+    {file = "pprintpp-0.4.0.tar.gz", hash = "sha256:ea826108e2c7f49dc6d66c752973c3fc9749142a798d6b254e1e301cfdbc6403"},
+]
 py = [
     {file = "py-1.10.0-py2.py3-none-any.whl", hash = "sha256:3b80836aa6d1feeaa108e046da6423ab8f6ceda6468545ae8d02d9d58d18818a"},
     {file = "py-1.10.0.tar.gz", hash = "sha256:21b81bda15b66ef5e1a777a21c4dcd9c20ad3efd0b3f817e7a809035269e1bd3"},
@@ -852,6 +888,9 @@ pytest-bdd = [
     {file = "pytest-bdd-4.0.2.tar.gz", hash = "sha256:982489f2f036c7561affe4eeb5b392a37e1ace2a9f260cad747b1c8119e63cfd"},
     {file = "pytest_bdd-4.0.2-py2.py3-none-any.whl", hash = "sha256:74ea5a147ea558c99ae83d838e6acbe5c9e6843884a958f8231615d96838733d"},
 ]
+pytest-icdiff = [
+    {file = "pytest-icdiff-0.5.tar.gz", hash = "sha256:3a14097f4385665cb04330e6ae09a3dd430375f717e94482af6944470ad5f100"},
+]
 python-dateutil = [
     {file = "python-dateutil-2.8.1.tar.gz", hash = "sha256:73ebfe9dbf22e832286dafa60473e4cd239f8592f699aa5adaf10050e6e1823c"},
     {file = "python_dateutil-2.8.1-py2.py3-none-any.whl", hash = "sha256:75bb3f31ea686f1197762692a9ee6a7550b59fc6ca3a1f4b5d7e32fb98e2da2a"},
diff --git a/pyproject.toml b/pyproject.toml
index cb905a23..eac62079 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -51,6 +51,7 @@ toml = ">=0.10"
 pyflakes = ">=2.2.0"
 pytest = ">=6.2"
 pytest-bdd = "^4.0.1"
+pytest-icdiff = "^0.5"
 yq = ">=2.11"
 
 [tool.poetry.scripts]