[processing] add unittest for gdal2xyz algorithm

(cherry picked from commit f447745)

python/plugins/processing/tests/GdalAlgorithmsTest.py

@@ -61,6 +61,7 @@
 from processing.algs.gdal.rearrange_bands import rearrange_bands
 from processing.algs.gdal.gdaladdo import gdaladdo
 from processing.algs.gdal.sieve import sieve
+from processing.algs.gdal.gdal2xyz import gdal2xyz
 
 from processing.tools.system import isWindows
 
@@ -2514,6 +2515,38 @@ def testSieve(self):
                  source + ' ' +
                  outsource])
 
+    def testGdal2Xyz(self):
+        context = QgsProcessingContext()
+        feedback = QgsProcessingFeedback()
+        source = os.path.join(testDataPath, 'dem.tif')
+
+        with tempfile.TemporaryDirectory() as outdir:
+            outsource = outdir + '/check.csv'
+            alg = gdal2xyz()
+            alg.initAlgorithm()
+
+            # defaults
+            self.assertEqual(
+                alg.getConsoleCommands({'INPUT': source,
+                                        'BAND': 1,
+                                        'CSV': False,
+                                        'OUTPUT': outsource}, context, feedback),
+                ['gdal2xyz.py',
+                 '-band 1 ' +
+                 source + ' ' +
+                 outsource])
+
+            # csv output
+            self.assertEqual(
+                alg.getConsoleCommands({'INPUT': source,
+                                        'BAND': 1,
+                                        'CSV': True,
+                                        'OUTPUT': outsource}, context, feedback),
+                ['gdal2xyz.py',
+                 '-band 1 -csv ' +
+                 source + ' ' +
+                 outsource])
+
 
 class TestGdalOgrToPostGis(unittest.TestCase):
 

python/plugins/processing/tests/testdata/gdal_algorithm_tests.yaml

@@ -167,20 +167,6 @@ tests:
           - 'Band 1 Block=373x5 Type=Float32, ColorInterp=Gray'
           - '  NoData Value=-99999'
 
-# Disabled as gdal2xyz.py is not available on Travis
-#  - algorithm: gdal:gdal2xyz
-#    name: gdal2xyz
-#    params:
-#      BAND: 1
-#      CSV: false
-#      INPUT:
-#        name: dem.tif
-#        type: raster
-#    results:
-#      OUTPUT:
-#        name: expected/gdal/xyz.csv
-#        type: file
-
   - algorithm: gdal:tileindex
     name: Tile index (gdaltindex)
     params: