[processing][saga] Fix definition of cross profiles alg, add test

Author: nyalldawson

python/plugins/processing/algs/saga/description/CrossProfiles.txt

@@ -4,5 +4,5 @@ QgsProcessingParameterRasterLayer|DEM|DEM|None|False
 QgsProcessingParameterFeatureSource|LINES|Lines|1|None|False
 QgsProcessingParameterNumber|DIST_LINE|Profile Distance|QgsProcessingParameterNumber.Double|10.0|False|0.0|None
 QgsProcessingParameterNumber|DIST_PROFILE|Profile Length|QgsProcessingParameterNumber.Double|10.0|False|0.0|None
-QgsProcessingParameterNumber|NUM_PROFILE|Profile Samples|QgsProcessingParameterNumber.Double|10.0|False|1.0|None
+QgsProcessingParameterNumber|NUM_PROFILE|Profile Samples|QgsProcessingParameterNumber.Integer|10|False|3|None
 QgsProcessingParameterVectorDestination|PROFILES|Cross Profiles

python/plugins/processing/tests/testdata/expected/saga/cross_profiles.dbf

@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<SAGA_METADATA>
+  <HISTORY saga-version="2.3.1">
+    <MODULE library="ta_profiles" id="3" name="Cross Profiles">
+      <OPTION type="grid_system" id="PARAMETERS_GRID_SYSTEM" name="Grid system">
+        <CELLSIZE>0.0001</CELLSIZE>
+        <XMIN>18.666347944200002</XMIN>
+        <XMAX>18.7035479442</XMAX>
+        <YMIN>45.7767514376</YMIN>
+        <YMAX>45.8116514376</YMAX>
+      </OPTION>
+      <OPTION type="double" id="DIST_LINE" name="Profile Distance">0.001000</OPTION>
+      <OPTION type="double" id="DIST_PROFILE" name="Profile Length">0.002000</OPTION>
+      <OPTION type="integer" id="NUM_PROFILE" name="Profile Samples">10</OPTION>
+      <INPUT type="grid" id="DEM" name="DEM" system="PARAMETERS_GRID_SYSTEM">
+        <MODULE library="io_gdal" id="0" name="Import Raster">
+          <OPTION type="file" id="FILES" name="Files">"/home/nyall/dev/QGIS/python/plugins/processing/tests/testdata/dem.tif"</OPTION>
+          <OPTION type="text" id="SELECTION" name="Select from Multiple Bands"/>
+          <OPTION type="boolean" id="SELECT_SORT" name="Alphanumeric Sorting">TRUE</OPTION>
+          <OPTION type="boolean" id="TRANSFORM" name="Transformation">TRUE</OPTION>
+          <OPTION type="choice" id="RESAMPLING" name="Resampling" index="3">B-Spline Interpolation</OPTION>
+          <OUTPUT type="grid_list" id="GRIDS" name="Grids">dem</OUTPUT>
+        </MODULE>
+      </INPUT>
+      <INPUT type="shapes" id="LINES" name="Lines">
+        <FILE>/home/nyall/dev/QGIS/python/plugins/processing/tests/testdata/custom/lines_over.shp</FILE>
+      </INPUT>
+      <OUTPUT type="shapes" id="PROFILES" name="Cross Profiles">Profiles</OUTPUT>
+    </MODULE>
+  </HISTORY>
+  <SOURCE>
+    <FILE></FILE>
+    <DATABASE>
+      <FIELDS>
+        <FIELD TYPE="INTEGER">ID</FIELD>
+        <FIELD TYPE="INTEGER">LINE</FIELD>
+        <FIELD TYPE="INTEGER">PART</FIELD>
+        <FIELD TYPE="DOUBLE">X000</FIELD>
+        <FIELD TYPE="DOUBLE">X001</FIELD>
+        <FIELD TYPE="DOUBLE">X002</FIELD>
+        <FIELD TYPE="DOUBLE">X003</FIELD>
+        <FIELD TYPE="DOUBLE">X004</FIELD>
+        <FIELD TYPE="DOUBLE">X005</FIELD>
+        <FIELD TYPE="DOUBLE">X006</FIELD>
+        <FIELD TYPE="DOUBLE">X007</FIELD>
+        <FIELD TYPE="DOUBLE">X008</FIELD>
+        <FIELD TYPE="DOUBLE">X009</FIELD>
+      </FIELDS>
+    </DATABASE>
+    <PROJECTION></PROJECTION>
+  </SOURCE>
+  <DESCRIPTION></DESCRIPTION>
+</SAGA_METADATA>

python/plugins/processing/tests/testdata/expected/saga/cross_profiles.mshp

@@ -0,0 +1 @@
+GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]]

python/plugins/processing/tests/testdata/expected/saga/cross_profiles.prj

@@ -358,3 +358,20 @@ tests:
         name: expected/saga/polygon_self_intersection.shp
         type: vector
 
+  - algorithm: saga:crossprofiles
+    name: Cross profiles
+    params:
+      DEM:
+        name: dem.tif
+        type: raster
+      DIST_LINE: 0.001
+      DIST_PROFILE: 0.002
+      LINES:
+        name: custom/lines_over.shp
+        type: vector
+      NUM_PROFILE: 10
+    results:
+      PROFILES:
+        name: expected/saga/cross_profiles.shp
+        type: vector
+