// TestHasCanonicalPush ensures the canonicalPush function works as expected.
func TestHasCanonicalPush(t *testing.T) {
t.Parallel()
for i := 0; i < 65535; i++ {
builder := txscript.NewScriptBuilder()
builder.AddInt64(int64(i))
script, err := builder.Script()
if err != nil {
t.Errorf("Script: test #%d unexpected error: %v\n", i,
err)
continue
}
if result := txscript.IsPushOnlyScript(script); !result {
t.Errorf("IsPushOnlyScript: test #%d failed: %x\n", i,
script)
continue
}
pops, err := txscript.TstParseScript(script)
if err != nil {
t.Errorf("TstParseScript: #%d failed: %v", i, err)
continue
}
for _, pop := range pops {
if result := txscript.TstHasCanonicalPushes(pop); !result {
t.Errorf("TstHasCanonicalPushes: test #%d "+
"failed: %x\n", i, script)
break
}
}
}
for i := 0; i <= txscript.MaxScriptElementSize; i++ {
builder := txscript.NewScriptBuilder()
builder.AddData(bytes.Repeat([]byte{0x49}, i))
script, err := builder.Script()
if err != nil {
t.Errorf("StandardPushesTests test #%d unexpected error: %v\n", i, err)
continue
}
if result := txscript.IsPushOnlyScript(script); !result {
t.Errorf("StandardPushesTests IsPushOnlyScript test #%d failed: %x\n", i, script)
continue
}
pops, err := txscript.TstParseScript(script)
if err != nil {
t.Errorf("StandardPushesTests #%d failed to TstParseScript: %v", i, err)
continue
}
for _, pop := range pops {
if result := txscript.TstHasCanonicalPushes(pop); !result {
t.Errorf("StandardPushesTests TstHasCanonicalPushes test #%d failed: %x\n", i, script)
break
}
}
}
}
// TestHasCanonicalPushes ensures the canonicalPush function properly determines
// what is considered a canonical push for the purposes of removeOpcodeByData.
func TestHasCanonicalPushes(t *testing.T) {
t.Parallel()
tests := []struct {
name string
script string
expected bool
}{
{
name: "does not parse",
script: "0x046708afdb0fe5548271967f1a67130b7105cd6a82" +
"8e03909a67962e0ea1f61d",
expected: false,
},
{
name: "non-canonical push",
script: "PUSHDATA1 0x04 0x01020304",
expected: false,
},
}
for i, test := range tests {
script := mustParseShortForm(test.script)
pops, err := txscript.TstParseScript(script)
if err != nil {
if test.expected {
t.Errorf("TstParseScript #%d failed: %v", i, err)
}
continue
}
for _, pop := range pops {
if txscript.TstHasCanonicalPushes(pop) != test.expected {
t.Errorf("TstHasCanonicalPushes: #%d (%s) "+
"wrong result\ngot: %v\nwant: %v", i,
test.name, true, test.expected)
break
}
}
}
}