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<?php
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/*
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PHPlot / contrib / color_range : Unit tests
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$Id: color_range.test2.php 452 2009-12-09 03:45:51Z lbayuk $
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Tests color.range.php functions:
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color_range($color_a, $color_b, $n_steps)
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count_data_sets($data, $data_type)
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*/
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require_once 'color_range.php';
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# Testing count_data_sets()
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function test_count_data_sets($data, $data_type, $expected)
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{
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$n = count_data_sets($data, $data_type);
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if ($n == $expected) $result = "Pass";
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else $result = "FAIL: Expected $expected but got";
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echo "$result: $n data sets, $data_type with " . count($data) . " records.\n";
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}
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function test_driver_count_data_sets()
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{
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echo "\nTesting count_data_sets():\n";
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$data1 = array(array('a', 1, 2, 3), array('b', 2, 2, 3));
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$data2 = array(array('a', 1, 2, 3, 4, 5, 6, 7), array('b', 2, 4, 5, 6));
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$data3 = array(array('', 1), array('', 2), array('', 3), array('', 4));
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$data4 = array(array('', 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13),
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array('', 1, 2, 3, 4, 5, 6, 7),
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array('', 1, 2, 3, 4));
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test_count_data_sets($data1, 'text-data', 3);
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test_count_data_sets($data1, 'data-data', 2);
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test_count_data_sets($data2, 'data-data-error', 2);
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test_count_data_sets($data3, 'text-data-single', 4);
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test_count_data_sets($data4, 'text-data', 13);
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test_count_data_sets($data4, 'data-data', 12);
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test_count_data_sets($data4, 'data-data-error', 4);
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test_count_data_sets($data4, 'text-data-single', 3);
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}
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# Testing color_range()
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function test_color_range($color1, $color2, $nsteps, $expected)
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{
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$info = 'From (' . implode(', ', $color1)
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. ') To (' . implode(', ', $color2) . ") with $nsteps steps";
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$colors = color_range($color1, $color2, $nsteps);
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if ($colors == $expected) echo "Pass: $info\n";
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else echo "FAIL: $info\n" . print_r($colors, True) . "\n";
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if (($n = count($colors)) != $nsteps)
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echo "FAIL: Bad count $n expecting $nsteps\n";
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}
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function test_driver_color_range()
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{
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echo "\nTesting color_range():\n";
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test_color_range(array(0,0,0), array(255,255,255), 3,
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array(array(0,0,0), array(127,127,127), array(255,255,255)));
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test_color_range(array(255,0,0), array(0,255,0), 2,
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array(array(255,0,0), array(0,255,0)));
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test_color_range(array(100,0,100), array(0,100,0), 6,
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array(array(100,0,100), array(80,20,80), array(60,40,60),
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array(40,60,40), array(20,80,20), array(0,100,0)));
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}
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test_driver_count_data_sets();
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test_driver_color_range();
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