ncurses(3) will use the line drawing characters from the VT100 alternate graphics character set if the terminal supports this as indicated by termcap/terminfo, otherwise it will fall back to ASCII replacement characters. ok jamsek stsp

Add count instruction to the test harness to simulate count modifier compound keys (e.g., 11j), and add basic tests for the tree view. ok stsp@

Also, overwrite - and | unconditionally when capturing screen dumps, and unset TOG_COLORS and TOG_DIFF_ALGORITHM in regress setup. All tweaks suggested by naddy@ ok stsp@

As suggested by stsp, rather than busy wait in the view loop, use pthread conditions to wait for the blame thread to signal completion before drawing the screen. We can add more conditions for other views when needed, but by keeping the general WAIT_FOR_UI instruction and flag, this should make their use context-dependent so we won't need more test harness WAIT_* instructions. ok stsp@

Requested by James Cook

Problem reported by James Cook with reproduction scripts Regression test case by jamsek, as a simplified version of James' scripts fix tested + ok jamsek

ok stsp@

Both view_close() and close_blame_view() are called from view_loop() irrespective of error, so only call these from cmd_blame() to ensure the tog_view structure is not leaked when open_blame_view() errors. ok stsp@

Basic blame view test required adding the WAIT_FOR_UI instruction to delay screen dumps till the ui has been completely rendered. This will also apply to future test cases such as limited log views and further blame test cases. ok stsp@

As per stsp's idea: use a more descriptive name, and use the TOG_TEST_SCRIPT envvar both in tog.c and the test scripts. ok stsp@

ok stsp@