Unreached lines of code in lib/parse-args.js

[mcknasty]

• Version:
• Platform:

• Version:

$ node -v
v16.19.1

• Platform:

$ uname -a
Linux ********* 5.15.90.1-microsoft-standard-WSL2 #1 SMP Fri Jan 27 02:56:13 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux

The variable argv.tempDirectory is set in the following yargs function

The lines in the file lib/parse-args.js is not reached during the test cases and it references this variable.

File	% Stmts	% Branch	% Funcs	% Lines	Uncovered Line #s
All files	95.84	86.33	100	95.84
bin	90.38	88.88	100	90.38
c8.js	90.38	88.88	100	90.38	27-29,50-51
lib	95.6	84.25	100	95.6
is-cjs-esm-bridge.js	90	62.5	100	90	9
parse-args.js	98.21	75	100	98.21	165-166,201-202
report.js	95.44	90.54	100	95.44	9-10,123,129-132,143-147,248-249,332-333,367-369
source-map-from-file.js	91	71.42	100	91	74-76,91-93,95-97
lib/commands	100	95.45	100	100
check-coverage.js	100	92.85	100	100	26
report.js	100	100	100	100

The variable process.env.NODE_V8_COVERAGE is used as the default for argv.tempDirectory on lines 127 - 130 in lib/parse-args.js. Oddly enough process.env.NODE_V8_COVERAGE is assigned the value of the variable argv.tempDirectory on line of 36 of
bin/c8.js.

Need to investigate this issue further. Taking some notes as it is referenced in #436