More curl tests

[Sjord]

No description provided.

[Sjord]

@NickSdot Could you take a look at this?

[NickSdot]

Cannot really judge in detail what's tested, but found some things worth pointing out. Also, can confirm that this closes coverage gaps. ✌️

Coverage: ext/curl

Base: c621cbe27ffe59ed98228724d674dcadcf7f6e8d upstream/master
Tree: 2aa80efcacc776c87712a9beed9487c40be6cffc working tree

+--------+-------+---------+--------------------+-------------------+--------+---------+
|        | Tests | Sources |              Lines |          Branches |   Time |  Memory |
+--------+-------+---------+--------------------+-------------------+--------+---------+
| Base   |   189 |       6 | 2520/2912 (86.54%) | 847/4640 (18.25%) | 64.23s | 45.5 MB |
| Tree   |   197 |       6 | 2538/2912 (87.16%) | 857/4640 (18.47%) | 68.17s | 45.1 MB |
| Change |    +8 |       0 |  +18 / -0 (+0.62%) | +10 / -0 (+0.22%) | +3.94s | -0.4 MB |
+--------+-------+---------+--------------------+-------------------+--------+---------+

[Sjord]

@LamentXU123 Could you take a look at this?

[LamentXU123]

Sorry, I am not familiar with curl API. Maybe @devnexen can help here.

[Sjord]

Windows test fails with:

NMAKE : fatal error U1077: '  "C:\obj\Release_TS\php.exe" -d open_basedir= -d output_buffering=0 run-tests.php -d opcache.enable=1 -d opcache.enable_cli=1 -d opcache.protect_memory=1 -d opcache.jit_buffer_size=64M -d opcache.jit=tracing -g FAIL,BORK,LEAK,XLEAK  --no-progress -q --offline --show-diff --show-slow 1000 --set-timeout 120 --temp-source c:\tests_tmp --temp-target c:\tests_tmp  -p "C:\obj\Release_TS\php.exe"' : return code '0x1'
Stop.

Microsoft (R) Program Maintenance Utility Version 14.51.36256.0
Copyright (C) Microsoft Corporation.  All rights reserved.

SUCCESS: The process "snmpd.exe" with PID 7740 has been terminated.

D:\a\php-src\php-src>if 2 NEQ 0 exit /b 3 
Error: Process completed with exit code 1.

This doesn't seem related to this PR, but I am not sure what is going on.