From 63aaaa0eaddcb6716837e21971488846018002d8 Mon Sep 17 00:00:00 2001
From: Wei Ji <23487320+weiji14@users.noreply.github.com>
Date: Sat, 4 Mar 2023 11:22:00 +1300
Subject: [PATCH 1/2] Fix bug with different band dtype from load_tile_map by
 casting to uint8

The band list `[0, 1, 2]` was being converted to int32 on Windows + NumPy 1.24, but is int64 on other platforms. Casting the band coordinate explicitly to `uint8` for consistency.
---
 pygmt/datasets/tile_map.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pygmt/datasets/tile_map.py b/pygmt/datasets/tile_map.py
index 2afe28acbf9..c13e30bd03c 100644
--- a/pygmt/datasets/tile_map.py
+++ b/pygmt/datasets/tile_map.py
@@ -102,7 +102,7 @@ def load_tile_map(region, zoom="auto", source=None, lonlat=True, wait=0, max_ret
     Frozen({'band': 3, 'y': 1024, 'x': 1536})
     >>> raster.coords
     Coordinates:
-      * band     (band) int64 0 1 2
+      * band     (band) uint8 0 1 2
       * y        (y) float64 1.663e+05 1.663e+05 1.663e+05 ... 1.272e+05 ...
       * x        (x) float64 1.153e+07 1.153e+07 1.153e+07 ... 1.158e+07 ...
     """
@@ -137,7 +137,7 @@ def load_tile_map(region, zoom="auto", source=None, lonlat=True, wait=0, max_ret
     dataarray = xr.DataArray(
         data=rgb_image,
         coords={
-            "band": [0, 1, 2],  # Red, Green, Blue
+            "band": np.uint8([0, 1, 2]),  # Red, Green, Blue
             "y": np.linspace(start=top, stop=bottom, num=rgb_image.shape[1]),
             "x": np.linspace(start=left, stop=right, num=rgb_image.shape[2]),
         },

From ea9e7dceef00ef1b2c68630a8d59190a33c1037a Mon Sep 17 00:00:00 2001
From: Wei Ji <23487320+weiji14@users.noreply.github.com>
Date: Sat, 4 Mar 2023 20:56:50 +1300
Subject: [PATCH 2/2] Make tile_map doctest faster by using a smaller zoom
 level

Just plotting the Southern Hemisphere at zoom level 1.
---
 pygmt/datasets/tile_map.py | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/pygmt/datasets/tile_map.py b/pygmt/datasets/tile_map.py
index c13e30bd03c..44344d5903b 100644
--- a/pygmt/datasets/tile_map.py
+++ b/pygmt/datasets/tile_map.py
@@ -94,17 +94,18 @@ def load_tile_map(region, zoom="auto", source=None, lonlat=True, wait=0, max_ret
     >>> import contextily
     >>> from pygmt.datasets import load_tile_map
     >>> raster = load_tile_map(
-    ...     region=[103.60, 104.06, 1.22, 1.49],  # West, East, South, North
+    ...     region=[-180.0, 180.0, -90.0, 0.0],  # West, East, South, North
+    ...     zoom=1,  # less detailed zoom level
     ...     source=contextily.providers.Stamen.TerrainBackground,
     ...     lonlat=True,  # bounding box coordinates are longitude/latitude
     ... )
     >>> raster.sizes
-    Frozen({'band': 3, 'y': 1024, 'x': 1536})
+    Frozen({'band': 3, 'y': 256, 'x': 512})
     >>> raster.coords
     Coordinates:
       * band     (band) uint8 0 1 2
-      * y        (y) float64 1.663e+05 1.663e+05 1.663e+05 ... 1.272e+05 ...
-      * x        (x) float64 1.153e+07 1.153e+07 1.153e+07 ... 1.158e+07 ...
+      * y        (y) float64 -7.081e-10 -7.858e+04 ... -1.996e+07 -2.004e+07
+      * x        (x) float64 -2.004e+07 -1.996e+07 ... 1.996e+07 2.004e+07
     """
     # pylint: disable=too-many-locals
     if contextily is None: