I propose breaking out a number of large tests from the unittests to their own test. This to decrease the flash size of the full unittest binary a bit.

Tests:

Flash sizes as mentioned below are based on the size of the required flash of the package itself, or when it is not a package, the flash required for the test itself. All flash sizes are measured for the nrf52840dk board.

• tweetnacl (9KB) tests/tweetnacl: Move from unittests to regular test #10184
• qDSA (13KB) tests/qdsa: Move from unittests to regular tests #10185
• libcose tests/libcose: Move from unittests to regular test #10183
• hacl (10KB) tests/hacl: Move from unittests to regular test #10209
• spiffs (16KB) tests/spiffs: Move from unittests to regular test #10210
• gnrc_ipv6_nib (38KB)
• cn-cbor (1.9KB) tests/cn-cbor: move from unittests to regular test #10188
• relic tests/relic: move from unittests to regular test #10189
• heatshrink tests/heatshrink: move from unittests to regular test #10202
• littlefs tests/littlefs: Move from unittests to regular test #10212

Optionally:

• hashes (19KB)
• Bloom (15KB)
• tests-cpp_ctors to remove DISABLE_ tests variables.

Final task

• Remove LARGE_STACK_TESTS from unittests tests/unittests: remove unused LARGE_STACK_TESTS #11601
• Update BOARD_INSUFFICIENT_MEMORY
  • Updated after all packages moved outside tests/unittests: enable boards with enough memory #11602

Packages that would still remain if all these tests are moved outside are cn-cbor at almost 2KB and heatshrink at 1.5KB removed