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+#! /bin/bash
+# This script tests: ppmpat
+# Also requires:
+
+# TODO: Write tests for squig and poles.  It appears that they are
+# sensitive to differences in floating point math.
+
+# These tests require random numbers.
+
+# Test 1. Should print: 2219119109 36015 (glibc)
+#                       3606254242 36015 (MAC OS)
+ppmpat --randomseed=0 -camo 100 120 | cksum
+
+# Test 2. Should print: 3436846137 16813 (glibc)
+#                       3615722579 16813 (MAC OS)
+ppmpat --randomseed=0 -anticamo 80 70 | cksum
+
+# Test 3. Should print: 908097729 16813 (glibc)
+#                       1756684515 16813 (MAC OS)
+ppmpat --randomseed=0 --color \
+  rgb:55/c0/34,rgb:0/ff/0,rgb:0/ee/0,rgb:0/cd/0,rgb:0/8b/0,rgb:4f/4f/2f \
+  -camo 80 70 | cksum