enable qrio in unix coverage build, and add a test

ports/unix/variants/coverage/mpconfigvariant.mk

@@ -21,5 +21,12 @@ MICROPY_VFS_LFS2 = 1
 FROZEN_DIR=variants/coverage/frzstr
 FROZEN_MPY_DIR=variants/coverage/frzmpy
 
+SRC_QRIO := $(patsubst ../../%,%,$(wildcard ../../shared-bindings/qrio/*.c ../../shared-module/qrio/*.c ../../lib/quirc/lib/*.c))
+$(info SRC_QRIO = $(SRC_QRIO))
+SRC_C += $(SRC_QRIO)
+
+CFLAGS += -DCIRCUITPY_QRIO=1
+$(BUILD)/lib/quirc/lib/%.o: CFLAGS += -Wno-shadow -Wno-sign-compare -include shared-module/qrio/quirc_alloc.h
+
 SRC_C += coverage.c
 SRC_CXX += coveragecpp.cpp

tests/extmod/qrio.py

@@ -0,0 +1,13 @@
+try:
+    import qrio
+except:
+    print("SKIP")
+    raise SystemExit
+
+loc = __file__.rsplit("/", 1)[0]
+with open(f"{loc}/data/qr.pgm") as f:
+    content = f.read()[-320 * 240 :]
+
+decoder = qrio.QRDecoder(320, 240)
+for r in decoder.decode(content):
+    print(r)

tests/extmod/qrio.py.exp

@@ -0,0 +1 @@
+QRInfo(payload=b'https://adafru.it', data_type='iso_8859-2')

tests/unix/extra_coverage.py.exp

@@ -32,11 +32,11 @@ mport
 builtins        micropython     _thread         array
 btree           cexample        cmath           collections
 cppexample      ffi             framebuf        gc
-hashlib         math            sys             termios
-ubinascii       uctypes         uerrno          uheapq
-uio             ujson           ulab            uos
-urandom         ure             uselect         ustruct
-utime           utimeq          uzlib
+hashlib         math            qrio            sys
+termios         ubinascii       uctypes         uerrno
+uheapq          uio             ujson           ulab
+uos             urandom         ure             uselect
+ustruct         utime           utimeq          uzlib
 ime
 
 utime           utimeq