== Test 0: ==
{{{
#!sql
CREATE TABLE test_source_raster_0 AS SELECT 1 AS rid,rast FROM (SELECT ST_MakeEmptyRaster(10,10,0,0,1,1,0,0,4326) AS rast)foo;
CREATE TABLE test_source_geometry_0 AS SELECT generate_series(1,10) AS id,ST_RandomPoints(the_geom,10) AS the_geom FROM (SELECT ST_SetSRID(ST_Extent(rast::geometry),4326) AS the_geom FROM test_source_raster_0)foo;
CREATE TABLE test_ref_raster_0 AS SELECT 1 AS rid,rast FROM (SELECT ST_MakeEmptyRaster(10,10,0,0,1,1,0,0,4326) AS rast)foo;
}}}

 0-a: Test NULL Raster. Should be true.
{{{
#!sql
SELECT ST_EuclideanDistance(NULL,NULL,'public','test_source_geometry_0','the_geom',False) IS NULL FROM test_ref_raster_0;
}}}

 0-b: Test Empty Raster. Should be true.
{{{
#!sql
SELECT ST_IsEmpty(ST_EuclideanDistance(0,10,0,0,1,1,0,0,4326,-999,'32BF','public','test_source_geometry_0','the_geom',False));
}}}

== Test 1: Small number of sources vs low resolution raster: (Source: 10 points, Raster: 10x10) ==
 1-a: Source geometry within the extent of the desired raster:[[BR]]
{{{
#!sql
CREATE TABLE test_source_raster_1 AS SELECT 1 AS rid,rast FROM (SELECT ST_MakeEmptyRaster(10,10,0,0,1,1,0,0,4326) AS rast)foo;
CREATE TABLE test_source_geometry_1 AS SELECT generate_series(1,10) AS id,ST_RandomPoints(the_geom,10) AS the_geom FROM (SELECT ST_SetSRID(ST_Extent(rast::geometry),4326) AS the_geom FROM test_source_raster_1)foo;
CREATE TABLE test_ref_raster_1 AS SELECT 1 AS rid,rast FROM (SELECT ST_MakeEmptyRaster(10,10,0,0,1,1,0,0,4326) AS rast)foo;
}}}
  1-a-i: Generate Euclidean Distance from a one-band reference raster
   1-a-i-1: Snap is True; Max distance NOT specified:
{{{
#!sql
CREATE TABLE test_eudist_1_a_i_1 AS (SELECT 1 AS rid,ST_EuclideanDistance(rast,'32BF','public','test_source_geometry_1','the_geom',True) AS rast FROM test_ref_raster_1);
}}}
    result:[[BR]]
    [[Image(test_eudist_1_a_i_1.gif)]][[BR]]
-------- 1-a-i-2: Snap is False; Max distance NOT specified:
-------- 1-a-i-3: Snap is True; Max distance is specified:
-------- 1-a-i-4: Snap is False; Max distance is specified:

------ 1-a-ii: Generate Euclidean Distance from a set of raster specifications:
-------- 1-a-ii-1: Snap is True; Max distance NOT specified:
-------- 1-a-ii-2: Snap is False; Max distance NOT specified:
-------- 1-a-ii-3: Snap is True; Max distance is specified:
-------- 1-a-ii-4: Snap is False; Max distance is specified:

---- 1-b: Source geometry completely outside of the extent of the desired raster:
------ 1-b-i: Generate Euclidean Distance from a one-band reference raster
-------- 1-b-i-1: Snap is True; Max distance NOT specified:
-------- 1-b-i-2: Snap is False; Max distance NOT specified:
-------- 1-b-i-3: Snap is True; Max distance is specified:
-------- 1-b-i-4: Snap is False; Max distance is specified:

------ 1-b-ii: Generate Euclidean Distance from a set of raster specifications:
-------- 1-b-ii-1: Snap is True; Max distance NOT specified:
-------- 1-b-ii-2: Snap is False; Max distance NOT specified:
-------- 1-b-ii-3: Snap is True; Max distance is specified:
-------- 1-b-ii-4: Snap is False; Max distance is specified:

---- 1-c: Source geometry partially outside of the extent of the desired raster:
------ 1-c-i: Generate Euclidean Distance from a one-band reference raster
-------- 1-c-i-1: Snap is True; Max distance NOT specified:
-------- 1-c-i-2: Snap is False; Max distance NOT specified:
-------- 1-c-i-3: Snap is True; Max distance is specified:
-------- 1-c-i-4: Snap is False; Max distance is specified:

------ 1-c-ii: Generate Euclidean Distance from a set of raster specifications:
-------- 1-c-ii-1: Snap is True; Max distance NOT specified:
-------- 1-c-ii-2: Snap is False; Max distance NOT specified:
-------- 1-c-ii-3: Snap is True; Max distance is specified:
-------- 1-c-ii-4: Snap is False; Max distance is specified:

-- Test 2: Small number of sources vs high resolution raster:(Source: 10 points, Raster: 300x300)
---- 2-a: Source geometry within the extent of the desired raster:
------ 2-a-i: Generate Euclidean Distance from a one-band reference raster
-------- 2-a-i-1: Snap is True; Max distance NOT specified:
-------- 2-a-i-2: Snap is False; Max distance NOT specified:
-------- 2-a-i-3: Snap is True; Max distance is specified:
-------- 2-a-i-4: Snap is False; Max distance is specified:

------ 2-a-ii: Generate Euclidean Distance from a set of raster specifications:
-------- 2-a-ii-1: Snap is True; Max distance NOT specified:
-------- 2-a-ii-2: Snap is False; Max distance NOT specified:
-------- 2-a-ii-3: Snap is True; Max distance is specified:
-------- 2-a-ii-4: Snap is False; Max distance is specified:

---- 2-b: Source geometry completely outside of the extent of the desired raster:
------ 2-b-i: Generate Euclidean Distance from a one-band reference raster
-------- 2-b-i-1: Snap is True; Max distance NOT specified:
-------- 2-b-i-2: Snap is False; Max distance NOT specified:
-------- 2-b-i-3: Snap is True; Max distance is specified:
-------- 2-b-i-4: Snap is False; Max distance is specified:

------ 2-b-ii: Generate Euclidean Distance from a set of raster specifications:
-------- 2-b-ii-1: Snap is True; Max distance NOT specified:
-------- 2-b-ii-2: Snap is False; Max distance NOT specified:
-------- 2-b-ii-3: Snap is True; Max distance is specified:
-------- 2-b-ii-4: Snap is False; Max distance is specified:

---- 2-c: Source geometry partially outside of the extent of the desired raster:
------ 2-c-i: Generate Euclidean Distance from a one-band reference raster
-------- 2-c-i-1: Snap is True; Max distance NOT specified:
-------- 2-c-i-2: Snap is False; Max distance NOT specified:
-------- 2-c-i-3: Snap is True; Max distance is specified:
-------- 2-c-i-4: Snap is False; Max distance is specified:

------ 2-c-ii: Generate Euclidean Distance from a set of raster specifications:
-------- 2-c-ii-1: Snap is True; Max distance NOT specified:
-------- 2-c-ii-2: Snap is False; Max distance NOT specified:
-------- 2-c-ii-3: Snap is True; Max distance is specified:
-------- 2-c-ii-4: Snap is False; Max distance is specified:

-- Test 3: Large number of sources vs low resolution raster:(Source: 1000 points, Raster: 300x300)
---- 3-a: Source geometry within the extent of the desired raster:
------ 3-a-i: Generate Euclidean Distance from a one-band reference raster
-------- 3-a-i-1: Snap is True; Max distance NOT specified:
-------- 3-a-i-2: Snap is False; Max distance NOT specified:
-------- 3-a-i-3: Snap is True; Max distance is specified:
-------- 3-a-i-4: Snap is False; Max distance is specified:

------ 3-a-ii: Generate Euclidean Distance from a set of raster specifications:
-------- 3-a-ii-1: Snap is True; Max distance NOT specified:
-------- 3-a-ii-2: Snap is False; Max distance NOT specified:
-------- 3-a-ii-3: Snap is True; Max distance is specified:
-------- 3-a-ii-4: Snap is False; Max distance is specified:

---- 3-b: Source geometry completely outside of the extent of the desired raster:
------ 3-b-i: Generate Euclidean Distance from a one-band reference raster
-------- 3-b-i-1: Snap is True; Max distance NOT specified:
-------- 3-b-i-2: Snap is False; Max distance NOT specified:
-------- 3-b-i-3: Snap is True; Max distance is specified:
-------- 3-b-i-4: Snap is False; Max distance is specified:

------ 3-b-ii: Generate Euclidean Distance from a set of raster specifications:
-------- 3-b-ii-1: Snap is True; Max distance NOT specified:
-------- 3-b-ii-2: Snap is False; Max distance NOT specified:
-------- 3-b-ii-3: Snap is True; Max distance is specified:
-------- 3-b-ii-4: Snap is False; Max distance is specified:

---- 3-c: Source geometry partially outside of the extent of the desired raster:
------ 3-c-i: Generate Euclidean Distance from a one-band reference raster
-------- 3-c-i-1: Snap is True; Max distance NOT specified:
-------- 3-c-i-2: Snap is False; Max distance NOT specified:
-------- 3-c-i-3: Snap is True; Max distance is specified:
-------- 3-c-i-4: Snap is False; Max distance is specified:

------ 3-c-ii: Generate Euclidean Distance from a set of raster specifications:
-------- 3-c-ii-1: Snap is True; Max distance NOT specified:
-------- 3-c-ii-2: Snap is False; Max distance NOT specified:
-------- 3-c-ii-3: Snap is True; Max distance is specified:
-------- 3-c-ii-4: Snap is False; Max distance is specified:

-- Test 4: Large number of sources vs high resolution raster:(Source: 1000 points, Raster: 1000x1000)
---- 4-a: Source geometry within the extent of the desired raster:
------ 4-a-i: Generate Euclidean Distance from a one-band reference raster
-------- 4-a-i-1: Snap is True; Max distance NOT specified:
-------- 4-a-i-2: Snap is False; Max distance NOT specified:
-------- 4-a-i-3: Snap is True; Max distance is specified:
-------- 4-a-i-4: Snap is False; Max distance is specified:

------ 4-a-ii: Generate Euclidean Distance from a set of raster specifications:
-------- 4-a-ii-1: Snap is True; Max distance NOT specified:
-------- 4-a-ii-2: Snap is False; Max distance NOT specified:
-------- 4-a-ii-3: Snap is True; Max distance is specified:
-------- 4-a-ii-4: Snap is False; Max distance is specified:

---- 4-b: Source geometry completely outside of the extent of the desired raster:
------ 4-b-i: Generate Euclidean Distance from a one-band reference raster
-------- 4-b-i-1: Snap is True; Max distance NOT specified:
-------- 4-b-i-2: Snap is False; Max distance NOT specified:
-------- 4-b-i-3: Snap is True; Max distance is specified:
-------- 4-b-i-4: Snap is False; Max distance is specified:

------ 4-b-ii: Generate Euclidean Distance from a set of raster specifications:
-------- 4-b-ii-1: Snap is True; Max distance NOT specified:
-------- 4-b-ii-2: Snap is False; Max distance NOT specified:
-------- 4-b-ii-3: Snap is True; Max distance is specified:
-------- 4-b-ii-4: Snap is False; Max distance is specified:

---- 4-c: Source geometry partially outside of the extent of the desired raster:
------ 4-c-i: Generate Euclidean Distance from a one-band reference raster
-------- 4-c-i-1: Snap is True; Max distance NOT specified:
-------- 4-c-i-2: Snap is False; Max distance NOT specified:
-------- 4-c-i-3: Snap is True; Max distance is specified:
-------- 4-c-i-4: Snap is False; Max distance is specified:

------ 4-c-ii: Generate Euclidean Distance from a set of raster specifications:
-------- 4-c-ii-1: Snap is True; Max distance NOT specified:
-------- 4-c-ii-2: Snap is False; Max distance NOT specified:
-------- 4-c-ii-3: Snap is True; Max distance is specified:
-------- 4-c-ii-4: Snap is False; Max distance is specified:

-- Test 5: Scalability test:
---- 5-a: Source: 10,000 points; Raster: 1000x1000
---- 5-b: Source: 1,000,000 points; Raster: 10,000x10,000
---- 5-c: Source: 1,000,000,000 points; Raster: 100,000x100,000
---- 5-d: Source: 10,000 points; Raster: 1000x10,000
---- 5-e: Source: 1,000,000 points; Raster: 10,000x10,000

-- Test 6: Performance test:
---- 6-a: Source: 100 points; Raster: 1000x1000
---- 6-b: Source: 1,000 points; Raster: 1000x1000
---- 6-c: Source: 5,000 points; Raster: 1000x1000
---- 6-d: Source: 10,000 points; Raster: 1000x1000
---- 6-e: Source: 20,000 points; Raster: 1000x1000
---- 6-f: Source: 40,000 points; Raster: 1000x1000
---- 6-g: Source: 80,000 points; Raster: 1000x1000
---- 6-h: Source: 160,000 points; Raster: 1000x1000
---- 6-i: Source: 320,000 points; Raster: 1000x1000
---- 6-j: Source: 640,000 points; Raster: 1000x1000
---- 6-k: Source: 1,280,000 points; Raster: 1000x1000
---- 6-l: Source: 2,560,000 points; Raster: 1000x1000
---- 6-m: Source: 5,120,000 points; Raster: 1000x1000
---- 6-n: Source: 10,240,000 points; Raster: 1000x1000
---- 6-o: Source: 20,480,000 points; Raster: 1000x1000
---- 6-p: Source: 40,960,000 points; Raster: 1000x1000
---- 6-q: Source: 81,920,000 points; Raster: 1000x1000
---- 6-r: Source: 100,000,000 points; Raster: 1000x1000
---- 6-s: Source: 1,000,000,000 points; Raster: 1000x1000