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- This directory contains the files needed for validation tests of several of
- the plot utilities. The tests are run by doing `make check'.
- The `plot2fig' validation test has been observed to fail on MS-DOS and NeXT
- machines, due to incorrect formatting of floating-point numbers. If any of
- the other tests should fail, please report it.
- HOW THE TESTS ARE DONE
- Each .test script generates a .out output file, which is compared with the
- corresponding .xout (`expected output') file. If there are any significant
- differences, the test fails.
- Most of the generated .out files are translations of the file `graph.xout'
- to other graphics formats. The file `graph.xout' is in the portable
- (human-readable) variant of GNU Metafile format. You may view it in a
- popped-up X window, if you are interested, by doing `plot -TX graph.xout'.
- SPECIAL FEATURES
- The plot2pcl.test script compares the generated output against either
- plot2pcl.xout or plot2pcl.yout. The latter is used if the
- `--enable-ps-fonts-in-pcl' option was passed to `configure'. In that case
- a different comparison file is needed, because `--enable-ps-fonts-in-pcl'
- allows the output from `plot -Tpcl' to contain any of the 35 PS fonts, such
- as Times-Roman.
- The comparison performed by plot2hpgl.test is similar.
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