On Wed, Jan 8, 2020 at 5:55 AM Brian Theado <[email protected]> wrote:
> I often read unit tests in source code projects in the hope of finding
simple, concrete usage examples. These examples not only serve to test the
code, but also also documentation on how to use it.
> But from that I don't see what the outputs are. It doesn't show me what
a TOG object can do and what it is for.
For an overview, see the Theory of Operation in LeoDocs.leo.
> Is there some code you can add which make it easy to see how things
work?
Good question. The dozen or so tests in the TestFstringify class assert
that a small example produces the desired result.
To see the two-way links produced by the TOG class, just call
dump_tree(tree) at the end of *any* test. For example, in
TestTOG.test_ClassDef2, replace:
self.make_data(contents)
by:
contents, tokens, tree = self.make_data(contents)
dump_tree(tree)
The output will be:
Tree...
parent lines node tokens
====== ===== ==== ======
6..7 0.Module: newline.33(6:
0)
0.Module 1.Expr:
1.Expr 1 2.Str: s='ds 1' string.1("""ds
1""")
0.Module 1..2 3.ClassDef: newline.2(1:
11) name.3(class) name.5(TestClass) op.6=:
3.ClassDef 4.Expr:
4.Expr 2..3 5.Str: s='ds 2' newline.7(2:
17) string.9("""ds 2""")
3.ClassDef 3..4 6.FunctionDef: newline.10(3:
15) name.12(def) name.14(long_name) op.23=:
6.FunctionDef 4 7.arguments: op.20==
7.arguments 4 8.arg: name.16(a)
7.arguments 4 9.arg: name.19(b)
7.arguments 4 10.Num: n=2 number.21(2)
6.FunctionDef 11.Expr:
11.Expr 4..5 12.Str: s='ds 3' newline.24(4:
27) string.26("""ds 3""")
6.FunctionDef 13.Expr:
13.Expr 14.Call:
14.Call 5..6 15.Name: id='print' newline.27(5:
19) name.29(print)
14.Call 6 16.Str: s='done' string.31(
'done')
HTH.
Edward
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