tests: fix some Python typing issues

These otherwise raise errors in pytype. A few problematic methods
weren't being used and are deleted.

build: add pytest targets

It enables running pytests in cmake jobs, regardless of underlying build
tool choice (= makes it work with ninja.)

Also:

- drop pytest logic l

build: add pytest targets

It enables running pytests in cmake jobs, regardless of underlying build
tool choice (= makes it work with ninja.)

Also:

- drop pytest logic launching `make` and exiting in case of failure.
Maybe there is a better way and keep this functionality somehow, bind
it to a command-line option? make it fail softly?

- GHA/linux: invoke pytest via the build, not directly.

- autotools: add missing dummy runtests targets when cross-compiling.

Closes #15034

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tests: constrain http pytest to tests/http directory

Running the http pytest had to be done from tests directory or above,
because the repeat argument fixture was defined in tests/confte

tests: constrain http pytest to tests/http directory

Running the http pytest had to be done from tests directory or above,
because the repeat argument fixture was defined in tests/conftest.py.
However, the repeat argument is not needed because its functionality
can be provided by pytest-repeat as documented in the test's
README.md. So, removed the pytest_addoption function for the repeat
argument and the pytest_report_header function is moved to
tests/http/conftest.py.

TODO: Remove repeat argument from all tests. As a stopgap, a
one-element list is defined for it for now.

Closes #14611

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tidy-up: mostly whitespace nits

- delete completed TODO from `./CMakeLists.txt`.
- convert a C++ comment to C89 in `./CMake/CurlTests.c`.
- delete duplicate EOLs from EOF.
- add

tidy-up: mostly whitespace nits

- delete completed TODO from `./CMakeLists.txt`.
- convert a C++ comment to C89 in `./CMake/CurlTests.c`.
- delete duplicate EOLs from EOF.
- add missing EOL at EOF.
- delete whitespace at EOL (except from expected test results).
- convert tabs to spaces.
- convert CRLF EOLs to LF in GHA yaml.
- text casing fixes in `./CMakeLists.txt`.
- fix a codespell typo in `packages/OS400/initscript.sh`.

Closes #11772

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tests/http: more tests with specific clients

- Makefile support for building test specific clients in tests/http/clients
- auto-make of clients when invoking pytest
- added test_09_0

tests/http: more tests with specific clients

- Makefile support for building test specific clients in tests/http/clients
- auto-make of clients when invoking pytest
- added test_09_02 for server PUSH_PROMISEs using clients/h2-serverpush
- added test_02_21 for lib based downloads and pausing/unpausing transfers

curl url parser:
- added internal method `curl_url_set_authority()` for setting the
authority part of a url (used for PUSH_PROMISE)

http2:
- made logging of PUSH_PROMISE handling nicer

Placing python test requirements in requirements.txt files
- separate files to base test suite and http tests since use
and module lists differ
- using the files in the gh workflows

websocket test cases, fixes for we and bufq
- bufq: account for spare chunks in space calculation
- bufq: reset chunks that are skipped empty
- ws: correctly encode frames with 126 bytes payload
- ws: update frame meta information on first call of collect
callback that fills user buffer
- test client ws-data: some test/reporting improvements

Closes #11006

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proxy: http2 proxy tunnel implementation

- currently only on debug build and when env variable
CURL_PROXY_TUNNEL_H2 is present.
- will ALPN negotiate with the proxy server and swit

proxy: http2 proxy tunnel implementation

- currently only on debug build and when env variable
CURL_PROXY_TUNNEL_H2 is present.
- will ALPN negotiate with the proxy server and switch
tunnel filter based on the protocol negotiated.
- http/1.1 tunnel code moved into cf-h1-proxy.[ch]
- http/2 tunnel code implemented in cf-h2-proxy.[ch]
- tunnel start and ALPN set remains in http_proxy.c
- moving all haproxy related code into cf-haproxy.[ch]

VTLS changes
- SSL filters rely solely on the "alpn" specification they
are created with and no longer check conn->bits.tls_enable_alpn.
- checks on which ALPN specification to use (or none at all) are
done in vtls.c when creating the filter.

Testing
- added a nghttpx forward proxy to the pytest setup that
speaks HTTP/2 and forwards all requests to the Apache httpd
forward proxy server.
- extending test coverage in test_10 cases
- adding proxy tests for direct/tunnel h1/h2 use of basic auth.
- adding test for http/1.1 and h2 proxy tunneling to pytest

Closes #10780

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tests/http: improved httpd detection

- better error messages when not found/complete
- handling of `--without-test-httpd`

Reported-by: kwind on github
Fixes #10879
Close

tests/http: improved httpd detection

- better error messages when not found/complete
- handling of `--without-test-httpd`

Reported-by: kwind on github
Fixes #10879
Closes #10883

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pytest: improvements for suitable curl and error output

- will check built curl for http and https support and
skip all tests if not there
- will dump stdout/stderr/trace output on

pytest: improvements for suitable curl and error output

- will check built curl for http and https support and
skip all tests if not there
- will dump stdout/stderr/trace output on errored responses

Closes #10829

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tests/http: remove year ranges from copyrights

Closes #10763

tests/http: add pytest to GHA and improve tests

- added to: ngtcp2-quictls, ngtcp2-gnutls and the linux varians
quiche, bearssl, libressl, mbedtls, openssl3, rustls
- added disable

tests/http: add pytest to GHA and improve tests

- added to: ngtcp2-quictls, ngtcp2-gnutls and the linux varians
quiche, bearssl, libressl, mbedtls, openssl3, rustls
- added disabled in ngtcp2-wolfssl due to weird SSL_connect() errors
not reproducable locally

Improvements on pytest:

- handling of systems with nghttpx in $PATH
- configure will seach $PATH got nghttpx used in pytest
- pytest fixes for managing nghttpx without h3 support
- ngtcp2-wolfssl: use a fully enabled wolfssl build

- lower parallel count for http/1.1 tests, since we do not
want to test excessive connections.
- check built curl for HTTPS-proxy support in proxy tests
- bearssl does not like one of our critical cert extensions, making
it non-critical now
- bearssl is too slow for test_12, skipping
- making sure we do h3 tests only when curl and server support is there

Closes #10699

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tests: use dynamic ports numbers in pytest suite

- necessary ports are bound at start of test suite and then
given to server fixtures for use.
- this make parallel use of pytest (i

tests: use dynamic ports numbers in pytest suite

- necessary ports are bound at start of test suite and then
given to server fixtures for use.
- this make parallel use of pytest (in separate directories),
practically safe for use as OS tend to not reuse such port numbers
for a while

Closes #10692

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tests: rename tests/tests-httpd to tests/http

- httpd is only one server we test with
- the suite coveres the HTTP protocol in general where
the default test cases need a more b

tests: rename tests/tests-httpd to tests/http

- httpd is only one server we test with
- the suite coveres the HTTP protocol in general where
the default test cases need a more beefy environment

Closes #10654

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