Adjust a couple tests

The tests hardcode the initial memory amount.
Make them robust against changes in defaults.

Author: SingleAccretion

test/test_core.py

@@ -2099,7 +2099,7 @@ def test_memorygrowth_geometric_step(self):
     if not self.is_wasm():
       self.skipTest('wasm memory specific test')
 
-    self.emcc_args += ['-sALLOW_MEMORY_GROWTH', '-sMEMORY_GROWTH_GEOMETRIC_STEP=8.5', '-sMEMORY_GROWTH_GEOMETRIC_CAP=32MB']
+    self.emcc_args += ['-sINITIAL_MEMORY=16MB', '-sALLOW_MEMORY_GROWTH', '-sMEMORY_GROWTH_GEOMETRIC_STEP=8.5', '-sMEMORY_GROWTH_GEOMETRIC_CAP=32MB']
     self.do_core_test('test_memorygrowth_geometric_step.c')
 
   def test_memorygrowth_3_force_fail_reallocBuffer(self):
@@ -5993,6 +5993,7 @@ def test_unistd_sysconf_phys_pages(self):
         assert self.get_setting('INITIAL_MEMORY') == '2200mb'
         expected = (2200 * 1024 * 1024) // webassembly.WASM_PAGE_SIZE
     else:
+      self.set_setting('INITIAL_MEMORY', '16mb')
       expected = 16 * 1024 * 1024 // webassembly.WASM_PAGE_SIZE
     self.do_runf(filename, str(expected) + ', errno: 0')
 

test/test_other.py

@@ -6567,7 +6567,7 @@ def test_failing_alloc(self):
   printf("managed another malloc!\n");
 }
 ''' % (pre_fail, post_fail))
-          args = [EMXX, 'main.cpp', '-sEXPORTED_FUNCTIONS=_main,_sbrk'] + opts + aborting_args
+          args = [EMXX, 'main.cpp', '-sEXPORTED_FUNCTIONS=_main,_sbrk', '-sINITIAL_MEMORY=16MB'] + opts + aborting_args
           args += ['-sTEST_MEMORY_GROWTH_FAILS'] # In this test, force memory growing to fail
           if growth:
             args += ['-sALLOW_MEMORY_GROWTH']
@@ -8592,7 +8592,7 @@ def run(args, expected):
       result = self.run_js('a.out.js').strip()
       self.assertEqual(result, f'{expected}, errno: 0')
 
-    run([], 256)
+    run(['-sINITIAL_MEMORY=16MB'], 256)
     run(['-sINITIAL_MEMORY=32MB'], 512)
     run(['-sINITIAL_MEMORY=32MB', '-sALLOW_MEMORY_GROWTH'], (2 * 1024 * 1024 * 1024) // webassembly.WASM_PAGE_SIZE)
     run(['-sINITIAL_MEMORY=32MB', '-sALLOW_MEMORY_GROWTH', '-sWASM=0'], (2 * 1024 * 1024 * 1024) // webassembly.WASM_PAGE_SIZE)