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python_test.go
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151 lines (136 loc) · 2.88 KB
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package python
import (
"bytes"
"io/ioutil"
"os"
"os/exec"
"path/filepath"
"reflect"
"testing"
)
func TestGoPython(t *testing.T) {
cmd := exec.Command("go-python", "-c", "print 1+1")
err := cmd.Run()
if err != nil {
t.Fatalf("go-python failed: %v", err)
}
}
type pkg struct {
path string
want []byte
}
func testPkg(t *testing.T, table pkg) {
workdir, err := ioutil.TempDir("", "go-python-")
if err != nil {
t.Fatalf("[%s]: could not create workdir: %v\n", table.path, err)
}
err = os.MkdirAll(workdir, 0644)
if err != nil {
t.Fatalf("[%s]: could not create workdir: %v\n", table.path, err)
}
defer os.RemoveAll(workdir)
pypath := "." + string(os.PathListSeparator) + os.Getenv("PYTHONPATH")
os.Setenv("PYTHONPATH", pypath)
buf := new(bytes.Buffer)
cmd := exec.Command("go", "run", "main.go")
cmd.Stdin = os.Stdin
cmd.Stdout = buf
cmd.Stderr = buf
cmd.Dir = table.path
err = cmd.Run()
if err != nil {
t.Fatalf(
"[%s]: error running go-python test: %v\n%v\n",
table.path,
err,
string(buf.Bytes()),
)
}
if !reflect.DeepEqual(string(buf.Bytes()), string(table.want)) {
diffTxt := ""
diffBin, diffErr := exec.LookPath("diff")
if diffErr == nil {
wantFile, wantErr := os.Create(filepath.Join(workdir, "want.txt"))
if wantErr == nil {
wantFile.Write(table.want)
wantFile.Close()
}
gotFile, gotErr := os.Create(filepath.Join(workdir, "got.txt"))
if gotErr == nil {
gotFile.Write(buf.Bytes())
gotFile.Close()
}
if gotErr == nil && wantErr == nil {
cmd = exec.Command(diffBin, "-urN",
wantFile.Name(),
gotFile.Name(),
)
diff, _ := cmd.CombinedOutput()
diffTxt = string(diff) + "\n"
}
}
t.Fatalf("[%s]: error running go-python test:\nwant:\n%s\n\ngot:\n%s\n%s",
table.path,
string(table.want), string(buf.Bytes()),
diffTxt,
)
}
}
func TestKwArgs(t *testing.T) {
t.Parallel()
testPkg(t, pkg{
path: "tests/kw-args",
want: []byte(`importing kwargs...
args=() kwds={}
args=() kwds={'a': 3}
`),
})
}
func TestCPickle(t *testing.T) {
t.Parallel()
testPkg(t, pkg{
path: "tests/cpickle",
want: []byte(`hello [ foo ]
cPickle.dumps(foo) = "S'foo'\np1\n."
cPickle.loads("S'foo'\np1\n.") = "foo"
`),
})
}
func TestErrFetch(t *testing.T) {
t.Parallel()
testPkg(t, pkg{
path: "tests/errfetch",
want: []byte("exc=<NULL>\nval=<NULL>\ntb=<NULL>\n"),
})
}
func TestModifyValues(t *testing.T) {
t.Parallel()
testPkg(t, pkg{
path: "tests/modify-values",
want: []byte(`values.__name__: "values"
values.sval: "42"
values.ival: 666
sval='42'
ival=666
sval='42 is the answer'
ival=1666
`),
})
}
func TestIssue61(t *testing.T) {
t.Parallel()
testPkg(t, pkg{
path: "tests/issue61",
want: []byte(`['i want this gone']
[]
`),
})
}
func TestCheckNone(t *testing.T) {
t.Parallel()
testPkg(t, pkg{
path: "tests/none-check",
want: []byte(`type=<type 'NoneType'>, str=None, eq_none=true
`),
})
}