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jsts/testxml/general/TestOverlayEmpty.xml
Björn Harrtell 34e9db62d4 Initial commit
2016-02-05 07:59:16 +01:00

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<run>
<desc> Test type of empty results from overlay operations </desc>
<case>
<a> POINT EMPTY </a>
<b> POINT EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='union' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> POINT EMPTY </a>
<b> LINESTRING EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='union' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> POINT EMPTY </a>
<b> POLYGON EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='union' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> POINT EMPTY </a>
<b> POINT (1 1) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> POINT EMPTY </a>
<b> LINESTRING (5 5, 6 6) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> POINT EMPTY </a>
<b> POLYGON ((20 20, 20 30, 30 30, 30 20, 20 20)) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> POINT EMPTY </a>
<b> MULTIPOINT EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='union' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> POINT EMPTY </a>
<b> MULTILINESTRING EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='union' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> POINT EMPTY </a>
<b> MULTIPOLYGON EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='union' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> POINT EMPTY </a>
<b> MULTIPOINT ((2 2), (3 3)) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> POINT EMPTY </a>
<b> MULTILINESTRING ((7 7, 8 8), (9 9, 10 10)) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> POINT EMPTY </a>
<b> MULTIPOLYGON (((50 50, 50 60, 60 60, 60 50, 50 50)), ((70 70, 70 80, 80 80, 80 70, 70 70))) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> LINESTRING EMPTY </a>
<b> POINT EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='union' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> LINESTRING EMPTY </a>
<b> LINESTRING EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='union' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> LINESTRING EMPTY </a>
<b> POLYGON EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='union' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> LINESTRING EMPTY </a>
<b> POINT (1 1) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> LINESTRING EMPTY </a>
<b> LINESTRING (5 5, 6 6) </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> LINESTRING EMPTY </a>
<b> POLYGON ((20 20, 20 30, 30 30, 30 20, 20 20)) </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> LINESTRING EMPTY </a>
<b> MULTIPOINT EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='union' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> LINESTRING EMPTY </a>
<b> MULTILINESTRING EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='union' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> LINESTRING EMPTY </a>
<b> MULTIPOLYGON EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='union' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> LINESTRING EMPTY </a>
<b> MULTIPOINT ((2 2), (3 3)) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> LINESTRING EMPTY </a>
<b> MULTILINESTRING ((7 7, 8 8), (9 9, 10 10)) </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> LINESTRING EMPTY </a>
<b> MULTIPOLYGON (((50 50, 50 60, 60 60, 60 50, 50 50)), ((70 70, 70 80, 80 80, 80 70, 70 70))) </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> POLYGON EMPTY </a>
<b> POINT EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='union' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> POLYGON EMPTY </a>
<b> LINESTRING EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='union' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> POLYGON EMPTY </a>
<b> POLYGON EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='union' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> POLYGON EMPTY </a>
<b> POINT (1 1) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> POLYGON EMPTY </a>
<b> LINESTRING (5 5, 6 6) </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> POLYGON EMPTY </a>
<b> POLYGON ((20 20, 20 30, 30 30, 30 20, 20 20)) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> POLYGON EMPTY </a>
<b> MULTIPOINT EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='union' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> POLYGON EMPTY </a>
<b> MULTILINESTRING EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='union' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> POLYGON EMPTY </a>
<b> MULTIPOLYGON EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='union' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> POLYGON EMPTY </a>
<b> MULTIPOINT ((2 2), (3 3)) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> POLYGON EMPTY </a>
<b> MULTILINESTRING ((7 7, 8 8), (9 9, 10 10)) </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> POLYGON EMPTY </a>
<b> MULTIPOLYGON (((50 50, 50 60, 60 60, 60 50, 50 50)), ((70 70, 70 80, 80 80, 80 70, 70 70))) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> POINT (1 1) </a>
<b> POINT EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> POINT (1 1) </a>
<b> LINESTRING EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> POINT (1 1) </a>
<b> POLYGON EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> POINT (1 1) </a>
<b> POINT (1 1) </b>
<test> <op name='difference' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> POINT (1 1) </a>
<b> LINESTRING (5 5, 6 6) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> POINT (1 1) </a>
<b> POLYGON ((20 20, 20 30, 30 30, 30 20, 20 20)) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> POINT (1 1) </a>
<b> MULTIPOINT EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> POINT (1 1) </a>
<b> MULTILINESTRING EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> POINT (1 1) </a>
<b> MULTIPOLYGON EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> POINT (1 1) </a>
<b> MULTIPOINT ((2 2), (3 3)) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> POINT (1 1) </a>
<b> MULTILINESTRING ((7 7, 8 8), (9 9, 10 10)) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> POINT (1 1) </a>
<b> MULTIPOLYGON (((50 50, 50 60, 60 60, 60 50, 50 50)), ((70 70, 70 80, 80 80, 80 70, 70 70))) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> LINESTRING (5 5, 6 6) </a>
<b> POINT EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> LINESTRING (5 5, 6 6) </a>
<b> LINESTRING EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> LINESTRING (5 5, 6 6) </a>
<b> POLYGON EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> LINESTRING (5 5, 6 6) </a>
<b> POINT (1 1) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> LINESTRING (5 5, 6 6) </a>
<b> LINESTRING (5 5, 6 6) </b>
<test> <op name='difference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> LINESTRING (5 5, 6 6) </a>
<b> POLYGON ((20 20, 20 30, 30 30, 30 20, 20 20)) </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> LINESTRING (5 5, 6 6) </a>
<b> MULTIPOINT EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> LINESTRING (5 5, 6 6) </a>
<b> MULTILINESTRING EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> LINESTRING (5 5, 6 6) </a>
<b> MULTIPOLYGON EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> LINESTRING (5 5, 6 6) </a>
<b> MULTIPOINT ((2 2), (3 3)) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> LINESTRING (5 5, 6 6) </a>
<b> MULTILINESTRING ((7 7, 8 8), (9 9, 10 10)) </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> LINESTRING (5 5, 6 6) </a>
<b> MULTIPOLYGON (((50 50, 50 60, 60 60, 60 50, 50 50)), ((70 70, 70 80, 80 80, 80 70, 70 70))) </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> POLYGON ((20 20, 20 30, 30 30, 30 20, 20 20)) </a>
<b> POINT EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> POLYGON ((20 20, 20 30, 30 30, 30 20, 20 20)) </a>
<b> LINESTRING EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> POLYGON ((20 20, 20 30, 30 30, 30 20, 20 20)) </a>
<b> POLYGON EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> POLYGON ((20 20, 20 30, 30 30, 30 20, 20 20)) </a>
<b> POINT (1 1) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> POLYGON ((20 20, 20 30, 30 30, 30 20, 20 20)) </a>
<b> LINESTRING (5 5, 6 6) </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> POLYGON ((20 20, 20 30, 30 30, 30 20, 20 20)) </a>
<b> POLYGON ((20 20, 20 30, 30 30, 30 20, 20 20)) </b>
<test> <op name='difference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> POLYGON ((20 20, 20 30, 30 30, 30 20, 20 20)) </a>
<b> MULTIPOINT EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> POLYGON ((20 20, 20 30, 30 30, 30 20, 20 20)) </a>
<b> MULTILINESTRING EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> POLYGON ((20 20, 20 30, 30 30, 30 20, 20 20)) </a>
<b> MULTIPOLYGON EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> POLYGON ((20 20, 20 30, 30 30, 30 20, 20 20)) </a>
<b> MULTIPOINT ((2 2), (3 3)) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> POLYGON ((20 20, 20 30, 30 30, 30 20, 20 20)) </a>
<b> MULTILINESTRING ((7 7, 8 8), (9 9, 10 10)) </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> POLYGON ((20 20, 20 30, 30 30, 30 20, 20 20)) </a>
<b> MULTIPOLYGON (((50 50, 50 60, 60 60, 60 50, 50 50)), ((70 70, 70 80, 80 80, 80 70, 70 70))) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> MULTIPOINT EMPTY </a>
<b> POINT EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='union' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> MULTIPOINT EMPTY </a>
<b> LINESTRING EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='union' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> MULTIPOINT EMPTY </a>
<b> POLYGON EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='union' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> MULTIPOINT EMPTY </a>
<b> POINT (1 1) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> MULTIPOINT EMPTY </a>
<b> LINESTRING (5 5, 6 6) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> MULTIPOINT EMPTY </a>
<b> POLYGON ((20 20, 20 30, 30 30, 30 20, 20 20)) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> MULTIPOINT EMPTY </a>
<b> MULTIPOINT EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='union' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> MULTIPOINT EMPTY </a>
<b> MULTILINESTRING EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='union' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> MULTIPOINT EMPTY </a>
<b> MULTIPOLYGON EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='union' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> MULTIPOINT EMPTY </a>
<b> MULTIPOINT ((2 2), (3 3)) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> MULTIPOINT EMPTY </a>
<b> MULTILINESTRING ((7 7, 8 8), (9 9, 10 10)) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> MULTIPOINT EMPTY </a>
<b> MULTIPOLYGON (((50 50, 50 60, 60 60, 60 50, 50 50)), ((70 70, 70 80, 80 80, 80 70, 70 70))) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> MULTILINESTRING EMPTY </a>
<b> POINT EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='union' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> MULTILINESTRING EMPTY </a>
<b> LINESTRING EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='union' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> MULTILINESTRING EMPTY </a>
<b> POLYGON EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='union' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> MULTILINESTRING EMPTY </a>
<b> POINT (1 1) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> MULTILINESTRING EMPTY </a>
<b> LINESTRING (5 5, 6 6) </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> MULTILINESTRING EMPTY </a>
<b> POLYGON ((20 20, 20 30, 30 30, 30 20, 20 20)) </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> MULTILINESTRING EMPTY </a>
<b> MULTIPOINT EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='union' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> MULTILINESTRING EMPTY </a>
<b> MULTILINESTRING EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='union' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> MULTILINESTRING EMPTY </a>
<b> MULTIPOLYGON EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='union' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> MULTILINESTRING EMPTY </a>
<b> MULTIPOINT ((2 2), (3 3)) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> MULTILINESTRING EMPTY </a>
<b> MULTILINESTRING ((7 7, 8 8), (9 9, 10 10)) </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> MULTILINESTRING EMPTY </a>
<b> MULTIPOLYGON (((50 50, 50 60, 60 60, 60 50, 50 50)), ((70 70, 70 80, 80 80, 80 70, 70 70))) </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> MULTIPOLYGON EMPTY </a>
<b> POINT EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='union' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> MULTIPOLYGON EMPTY </a>
<b> LINESTRING EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='union' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> MULTIPOLYGON EMPTY </a>
<b> POLYGON EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='union' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> MULTIPOLYGON EMPTY </a>
<b> POINT (1 1) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> MULTIPOLYGON EMPTY </a>
<b> LINESTRING (5 5, 6 6) </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> MULTIPOLYGON EMPTY </a>
<b> POLYGON ((20 20, 20 30, 30 30, 30 20, 20 20)) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> MULTIPOLYGON EMPTY </a>
<b> MULTIPOINT EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='union' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> MULTIPOLYGON EMPTY </a>
<b> MULTILINESTRING EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='union' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> MULTIPOLYGON EMPTY </a>
<b> MULTIPOLYGON EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='union' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> MULTIPOLYGON EMPTY </a>
<b> MULTIPOINT ((2 2), (3 3)) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> MULTIPOLYGON EMPTY </a>
<b> MULTILINESTRING ((7 7, 8 8), (9 9, 10 10)) </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> MULTIPOLYGON EMPTY </a>
<b> MULTIPOLYGON (((50 50, 50 60, 60 60, 60 50, 50 50)), ((70 70, 70 80, 80 80, 80 70, 70 70))) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='difference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> MULTIPOINT ((2 2), (3 3)) </a>
<b> POINT EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> MULTIPOINT ((2 2), (3 3)) </a>
<b> LINESTRING EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> MULTIPOINT ((2 2), (3 3)) </a>
<b> POLYGON EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> MULTIPOINT ((2 2), (3 3)) </a>
<b> POINT (1 1) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> MULTIPOINT ((2 2), (3 3)) </a>
<b> LINESTRING (5 5, 6 6) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> MULTIPOINT ((2 2), (3 3)) </a>
<b> POLYGON ((20 20, 20 30, 30 30, 30 20, 20 20)) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> MULTIPOINT ((2 2), (3 3)) </a>
<b> MULTIPOINT EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> MULTIPOINT ((2 2), (3 3)) </a>
<b> MULTILINESTRING EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> MULTIPOINT ((2 2), (3 3)) </a>
<b> MULTIPOLYGON EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> MULTIPOINT ((2 2), (3 3)) </a>
<b> MULTIPOINT ((2 2), (3 3)) </b>
<test> <op name='difference' arg1='A' arg2='B'> POINT EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> MULTIPOINT ((2 2), (3 3)) </a>
<b> MULTILINESTRING ((7 7, 8 8), (9 9, 10 10)) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> MULTIPOINT ((2 2), (3 3)) </a>
<b> MULTIPOLYGON (((50 50, 50 60, 60 60, 60 50, 50 50)), ((70 70, 70 80, 80 80, 80 70, 70 70))) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> MULTILINESTRING ((7 7, 8 8), (9 9, 10 10)) </a>
<b> POINT EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> MULTILINESTRING ((7 7, 8 8), (9 9, 10 10)) </a>
<b> LINESTRING EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> MULTILINESTRING ((7 7, 8 8), (9 9, 10 10)) </a>
<b> POLYGON EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> MULTILINESTRING ((7 7, 8 8), (9 9, 10 10)) </a>
<b> POINT (1 1) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> MULTILINESTRING ((7 7, 8 8), (9 9, 10 10)) </a>
<b> LINESTRING (5 5, 6 6) </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> MULTILINESTRING ((7 7, 8 8), (9 9, 10 10)) </a>
<b> POLYGON ((20 20, 20 30, 30 30, 30 20, 20 20)) </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> MULTILINESTRING ((7 7, 8 8), (9 9, 10 10)) </a>
<b> MULTIPOINT EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> MULTILINESTRING ((7 7, 8 8), (9 9, 10 10)) </a>
<b> MULTILINESTRING EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> MULTILINESTRING ((7 7, 8 8), (9 9, 10 10)) </a>
<b> MULTIPOLYGON EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> MULTILINESTRING ((7 7, 8 8), (9 9, 10 10)) </a>
<b> MULTIPOINT ((2 2), (3 3)) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> MULTILINESTRING ((7 7, 8 8), (9 9, 10 10)) </a>
<b> MULTILINESTRING ((7 7, 8 8), (9 9, 10 10)) </b>
<test> <op name='difference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> MULTILINESTRING ((7 7, 8 8), (9 9, 10 10)) </a>
<b> MULTIPOLYGON (((50 50, 50 60, 60 60, 60 50, 50 50)), ((70 70, 70 80, 80 80, 80 70, 70 70))) </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> MULTIPOLYGON (((50 50, 50 60, 60 60, 60 50, 50 50)), ((70 70, 70 80, 80 80, 80 70, 70 70))) </a>
<b> POINT EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> MULTIPOLYGON (((50 50, 50 60, 60 60, 60 50, 50 50)), ((70 70, 70 80, 80 80, 80 70, 70 70))) </a>
<b> LINESTRING EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> MULTIPOLYGON (((50 50, 50 60, 60 60, 60 50, 50 50)), ((70 70, 70 80, 80 80, 80 70, 70 70))) </a>
<b> POLYGON EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> MULTIPOLYGON (((50 50, 50 60, 60 60, 60 50, 50 50)), ((70 70, 70 80, 80 80, 80 70, 70 70))) </a>
<b> POINT (1 1) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> MULTIPOLYGON (((50 50, 50 60, 60 60, 60 50, 50 50)), ((70 70, 70 80, 80 80, 80 70, 70 70))) </a>
<b> LINESTRING (5 5, 6 6) </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> MULTIPOLYGON (((50 50, 50 60, 60 60, 60 50, 50 50)), ((70 70, 70 80, 80 80, 80 70, 70 70))) </a>
<b> POLYGON ((20 20, 20 30, 30 30, 30 20, 20 20)) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> MULTIPOLYGON (((50 50, 50 60, 60 60, 60 50, 50 50)), ((70 70, 70 80, 80 80, 80 70, 70 70))) </a>
<b> MULTIPOINT EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> MULTIPOLYGON (((50 50, 50 60, 60 60, 60 50, 50 50)), ((70 70, 70 80, 80 80, 80 70, 70 70))) </a>
<b> MULTILINESTRING EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> MULTIPOLYGON (((50 50, 50 60, 60 60, 60 50, 50 50)), ((70 70, 70 80, 80 80, 80 70, 70 70))) </a>
<b> MULTIPOLYGON EMPTY </b>
<test> <op name='intersection' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
<case>
<a> MULTIPOLYGON (((50 50, 50 60, 60 60, 60 50, 50 50)), ((70 70, 70 80, 80 80, 80 70, 70 70))) </a>
<b> MULTIPOINT ((2 2), (3 3)) </b>
<test> <op name='intersection' arg1='A' arg2='B'> POINT EMPTY </op> </test>
</case>
<case>
<a> MULTIPOLYGON (((50 50, 50 60, 60 60, 60 50, 50 50)), ((70 70, 70 80, 80 80, 80 70, 70 70))) </a>
<b> MULTILINESTRING ((7 7, 8 8), (9 9, 10 10)) </b>
<test> <op name='intersection' arg1='A' arg2='B'> LINESTRING EMPTY </op> </test>
</case>
<case>
<a> MULTIPOLYGON (((50 50, 50 60, 60 60, 60 50, 50 50)), ((70 70, 70 80, 80 80, 80 70, 70 70))) </a>
<b> MULTIPOLYGON (((50 50, 50 60, 60 60, 60 50, 50 50)), ((70 70, 70 80, 80 80, 80 70, 70 70))) </b>
<test> <op name='difference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
<test> <op name='symDifference' arg1='A' arg2='B'> POLYGON EMPTY </op> </test>
</case>
</run>
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