tests: Add regression test for r.his (#4572)

* Add tests to r.his * Add assertRasterFitsUnivar * Update assertRasterFitsUnivar * Add g.region to make r.univar values consistent * Update raster/r.his/testsuite/test_r_his.py Apply the suggestion. Co-authored-by: Anna Petrasova <[email protected]> * Update raster/r.his/testsuite/test_r_his.py Apply the suggestion. Co-authored-by: Anna Petrasova <[email protected]> * Update raster/r.his/testsuite/test_r_his.py Black styling --------- Co-authored-by: Anna Petrasova <[email protected]>
OSGeo · Oct 25, 2024 · b6514ca · b6514ca
1 parent bbe66e4
commit b6514ca
Showing 1 changed file with 91 additions and 0 deletions.
diff --git a/raster/r.his/testsuite/test_r_his.py b/raster/r.his/testsuite/test_r_his.py
@@ -0,0 +1,91 @@
+from grass.gunittest.case import TestCase
+from grass.gunittest.main import test
+
+
+class TestRHis(TestCase):
+    hue = "elevation"
+    intensity = "elevation_shaded_50"
+    saturation = "elevation"
+    red = "shadedmap_r"
+    green = "shadedmap_g"
+    blue = "shadedmap_b"
+    bgcolor = "none"
+
+    @classmethod
+    def setUpClass(cls):
+        cls.use_temp_region()
+        cls.runModule("g.region", raster="elevation")
+        cls.elev_shade = "elevation_shaded_relief"
+        cls.runModule("r.relief", input="elevation", output=cls.elev_shade)
+        cls.runModule(
+            "r.mapcalc", expression=f"{cls.intensity} = {cls.elev_shade} * 1.5"
+        )
+        cls.runModule("r.colors", map=cls.intensity, color="grey255")
+
+    @classmethod
+    def tearDownClass(cls):
+        cls.runModule(
+            "g.remove", type="raster", flags="f", name=[cls.intensity, cls.elev_shade]
+        )
+        cls.del_temp_region()
+
+    def tearDown(self):
+        """Remove d.his generated rasters after each test method"""
+        self.runModule("g.remove", type="raster", flags="f", pattern="shadedmap_*")
+
+    def test_bgcolor_none(self):
+        """Test r.his with bgcolor 'none'"""
+        self.runModule(
+            "r.his",
+            hue=self.hue,
+            intensity=self.intensity,
+            saturation=self.saturation,
+            red=self.red,
+            green=self.green,
+            blue=self.blue,
+            bgcolor=self.bgcolor,
+        )
+
+        red_value = "null_cells=5696\nmin=3\nmax=255\nmean=156.41168\nstddev=34.434612"
+        blue_value = "null_cells=5696\nmin=0\nmax=127\nmean=36.05560\nstddev=37.61216"
+        green_value = "null_cells=5696\nmin=1\nmax=255\nmean=129.62880\nstddev=34.48307"
+
+        self.assertRasterFitsUnivar(
+            raster=self.red, reference=red_value, precision=1e-5
+        )
+        self.assertRasterFitsUnivar(
+            raster=self.blue, reference=blue_value, precision=1e-5
+        )
+        self.assertRasterFitsUnivar(
+            raster=self.green, reference=green_value, precision=1e-5
+        )
+
+    def test_with_bgcolor_rgb(self):
+        """Test r.his with bgcolor '0:0:0'"""
+        self.runModule(
+            "r.his",
+            hue=self.hue,
+            intensity=self.intensity,
+            saturation=self.saturation,
+            red=self.red,
+            green=self.green,
+            blue=self.blue,
+            bgcolor="0:0:0",
+        )
+
+        red_value = "null_cells=0\nmin=0\nmax=255\nmean=155.97172\nstddev=35.36988"
+        blue_value = "null_cells=0\nmin=0\nmax=127\nmean=35.95417\nstddev=37.60774"
+        green_value = "null_cells=0\nmin=0\nmax=255\nmean=129.26418\nstddev=35.11225"
+        self.assertRasterFitsUnivar(
+            raster=self.red, reference=red_value, precision=1e-5
+        )
+        self.assertRasterFitsUnivar(
+            raster=self.blue, reference=blue_value, precision=1e-5
+        )
+        self.assertRasterFitsUnivar(
+            raster=self.green, reference=green_value, precision=1e-5
+        )
+
+
+if __import__("__main__"):
+    test()