add unit tests for Node2D helper methods #39

Job	Run time
📊 Static checks / Code style, file formatting, and docs	38s
🤖 Android / Template (target=template_release)	29m 50s
🐧 Linux / Editor w/ Mono (target=editor)	40m 28s
🌐 Web / Template w/ threads (target=template_release, threads=yes)	3m 34s
🐧 Linux / Editor with doubles and GCC sanitizers (target=editor, tests=yes, dev_build=yes, scu_build=yes, precision=double, use_asan=yes, use_ubsan=yes, linker=gold)	46m 54s
🍏 iOS / Template (target=template_release)	1m 52s
🌐 Web / Template w/o threads (target=template_release, threads=no)	23m 24s
🐧 Linux / Editor with clang sanitizers (target=editor, tests=yes, dev_build=yes, use_asan=yes, use_ubsan=yes, use_llvm=yes, linker=lld)	36m 6s
🍎 macOS / Editor (target=editor, tests=yes)	4m 2s
🐧 Linux / Editor with ThreadSanitizer (target=editor, tests=yes, dev_build=yes, use_tsan=yes, use_llvm=yes, linker=lld)	31m 54s
🐧 Linux / Template w/ Mono (target=template_release)	25m 46s
🍎 macOS / Template (target=template_release)	2m 48s
🏁 Windows / Editor (target=editor, tests=yes)	50m 9s
🐧 Linux / Minimal template (target=template_release, everything disabled)	14m 21s
🏁 Windows / Template (target=template_release)	32m 59s
🪲 Godot CPP / Build and test Godot CPP	7m 31s
	5h 52m 16s

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