Gilles created MATH-833:
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Summary: Redundancy in number formatting classes.
Key: MATH-833
URL: https://issues.apache.org/jira/browse/MATH-833
Project: Commons Math
Issue Type: Task
Reporter: Gilles
Priority: Minor
# Many tests are repetitive. They are very tedious to modify in case the
default format changes (as was the case in MATH-622).
Whenever one is testing the number part (be it an element of a vector, or of a
matrix, or the real part of a complex number, or the imaginary part of a
complex), the procedure for testing that, e.g. the truncation works as
expected, is the same; there should be a way to not repeat the same strings of
digits in every test class and every test method in those classes.
The tests should be rationalized in the perspective that the default format is
changed again, to scientific notation.
# The formatting classes ("RealVectorFormat", "RealMatrixFormat",
"VectorFormat", "Vector3DFormat") contain a fairly large amount of duplicate
code.
We should look for a way to abstract the formatting of a number (be it an
element of a vector, or of a matrix, or the real part of a complex number, or
the imaginary part of a complex) from the rest of the string representation of
the structure at hand.
# Some functionality is totally redundant: Formatting a "Vector3D" should be
strictly equivalent to formatting a "RealVector" with 3 elements.
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