Remove various testing spam (#6109)

Avoid some common warnings and stop printing various stdout/stderr stuff.

Helps #6104 

3 files changed, 7 insertions, 6 deletions

diff --git a/scripts/test/shared.py b/scripts/test/shared.py
index 28c85e792..441545db3 100644
--- a/scripts/test/shared.py
+++ b/scripts/test/shared.py
@@ -481,7 +481,7 @@ def binary_format_check(wast, verify_final_result=True, wasm_as_args=['-g'],
     assert os.path.exists('ab.wast')
 
     # make sure it is a valid wast
-    cmd = WASM_OPT + ['ab.wast', '-all']
+    cmd = WASM_OPT + ['ab.wast', '-all', '-q']
     print('            ', ' '.join(cmd))
     subprocess.check_call(cmd, stdout=subprocess.PIPE)
 
diff --git a/scripts/test/wasm2js.py b/scripts/test/wasm2js.py
index 7fdd8eb94..ea299e4ed 100644
--- a/scripts/test/wasm2js.py
+++ b/scripts/test/wasm2js.py
@@ -13,6 +13,7 @@
 # limitations under the License.
 
 import os
+import subprocess
 
 from . import shared
 from . import support
@@ -90,7 +91,7 @@ def test_wasm2js_output():
                 cmd += ['--allow-asserts']
                 js = support.run_command(cmd)
                 # also verify it passes pass-debug verifications
-                shared.with_pass_debug(lambda: support.run_command(cmd))
+                shared.with_pass_debug(lambda: support.run_command(cmd, stderr=subprocess.PIPE))
 
                 open('a.2asm.asserts.mjs', 'w').write(js)
 
diff --git a/scripts/test/wasm_opt.py b/scripts/test/wasm_opt.py
index 189a9978c..bc4706906 100644
--- a/scripts/test/wasm_opt.py
+++ b/scripts/test/wasm_opt.py
@@ -27,7 +27,7 @@ def test_wasm_opt():
         wast = os.path.join(shared.options.binaryen_test, 'hello_world.wat')
         shared.delete_from_orbit('a.wat')
         out = 'a.wat'
-        cmd = shared.WASM_OPT + [wast, '-o', out, '-S'] + extra_args
+        cmd = shared.WASM_OPT + [wast, '-o', out, '-S', '-q'] + extra_args
         support.run_command(cmd)
         shared.fail_if_not_identical_to_file(open(out).read(), wast)
 
@@ -36,9 +36,9 @@ def test_wasm_opt():
     shutil.copyfile(os.path.join(shared.options.binaryen_test, 'hello_world.wat'), 'a.wat')
     shared.delete_from_orbit('a.wasm')
     shared.delete_from_orbit('b.wast')
-    support.run_command(shared.WASM_OPT + ['a.wat', '-o', 'a.wasm'])
+    support.run_command(shared.WASM_OPT + ['a.wat', '-o', 'a.wasm', '-q'])
     assert open('a.wasm', 'rb').read()[0] == 0, 'we emit binary by default'
-    support.run_command(shared.WASM_OPT + ['a.wasm', '-o', 'b.wast', '-S'])
+    support.run_command(shared.WASM_OPT + ['a.wasm', '-o', 'b.wast', '-S', '-q'])
     assert open('b.wast', 'rb').read()[0] != 0, 'we emit text with -S'
 
     print('\n[ checking wasm-opt passes... ]\n')
@@ -63,7 +63,7 @@ def test_wasm_opt():
         for module, asserts in support.split_wast(t):
             assert len(asserts) == 0
             support.write_wast('split.wast', module)
-            cmd = shared.WASM_OPT + opts + ['split.wast']
+            cmd = shared.WASM_OPT + opts + ['split.wast', '-q']
             if 'noprint' not in t:
                 cmd.append('--print')
             curr = support.run_command(cmd)