diff --git a/python/plugins/processing/tests/testdata/gdal_algorithm_tests.yaml b/python/plugins/processing/tests/testdata/gdal_algorithm_tests.yaml
index c5bebc3394b..4cb0a59ee2d 100644
--- a/python/plugins/processing/tests/testdata/gdal_algorithm_tests.yaml
+++ b/python/plugins/processing/tests/testdata/gdal_algorithm_tests.yaml
@@ -123,18 +123,19 @@ tests:
           - 'Band 1 Block=373x5 Type=Float32, ColorInterp=Gray'
           - '  NoData Value=-99999'
 
-  - 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
+# 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)
@@ -300,38 +301,40 @@ tests:
         hash: fff4a08498e93494f3f2cf1a9074451e6fd68341849aedc9e2c45e6a
         type: rasterhash
 
-  - algorithm: gdal:polygonize
-    name: Polygonize
-    params:
-      BAND: 1
-      EIGHT_CONNECTEDNESS: false
-      FIELD: DN
-      INPUT:
-        name: dem.tif
-        type: raster
-    results:
-      OUTPUT:
-        name: expected/gdal/polygonize.gml
-        type: vector
+# Disabled as gdal2_poligonize.py is not available on Travis
+#  - algorithm: gdal:polygonize
+#    name: Polygonize
+#    params:
+#      BAND: 1
+#      EIGHT_CONNECTEDNESS: false
+#      FIELD: DN
+#      INPUT:
+#        name: dem.tif
+#        type: raster
+#    results:
+#      OUTPUT:
+#        name: expected/gdal/polygonize.gml
+#        type: vector
 
-  - algorithm: gdal:proximity
-    name: Proximity
-    params:
-      BAND: 1
-      DATA_TYPE: 5
-      INPUT:
-        name: dem.tif
-        type: raster
-      MAX_DISTANCE: 0.0
-      NODATA: 0.0
-      OPTIONS: ''
-      REPLACE: 0.0
-      UNITS: 1
-      VALUES: '90'
-    results:
-      OUTPUT:
-        hash: 32802271d1ce083ca14078bfefaef6300ae8809af11f6a4270583d0c
-        type: rasterhash
+# Disabled as gdal2_proximity.py is not available on Travis
+#  - algorithm: gdal:proximity
+#    name: Proximity
+#    params:
+#      BAND: 1
+#      DATA_TYPE: 5
+#      INPUT:
+#        name: dem.tif
+#        type: raster
+#      MAX_DISTANCE: 0.0
+#      NODATA: 0.0
+#      OPTIONS: ''
+#      REPLACE: 0.0
+#      UNITS: 1
+#      VALUES: '90'
+#    results:
+#      OUTPUT:
+#        hash: 32802271d1ce083ca14078bfefaef6300ae8809af11f6a4270583d0c
+#        type: rasterhash
 
   - algorithm: gdal:roughness
     name: Roughness
@@ -347,22 +350,23 @@ tests:
         hash: ee2b317e022da1001378fac60c9b613a74d3566b9870f9d121e6e322
         type: rasterhash
 
-  - algorithm: gdal:sieve
-    name: Sieve
-    params:
-      EIGHT_CONNECTEDNESS: false
-      INPUT:
-        name: dem.tif
-        type: raster
-      MASK_LAYER:
-        name: dem.tif
-        type: raster
-      NO_MASK: false
-      THRESHOLD: 10
-    results:
-      OUTPUT:
-        hash: 1ea6a8c838add299dc3f6f9f529eb5945664f68bae97be9ca80b1754
-        type: rasterhash
+# Disabled as gdal_sieve is not available on Travis
+#  - algorithm: gdal:sieve
+#    name: Sieve
+#    params:
+#      EIGHT_CONNECTEDNESS: false
+#      INPUT:
+#        name: dem.tif
+#        type: raster
+#      MASK_LAYER:
+#        name: dem.tif
+#        type: raster
+#      NO_MASK: false
+#      THRESHOLD: 10
+#    results:
+#      OUTPUT:
+#        hash: 1ea6a8c838add299dc3f6f9f529eb5945664f68bae97be9ca80b1754
+#        type: rasterhash
 
   - algorithm: gdal:slope
     name: Slope