func Test_PythonCallable_callPython(t *testing.T) {
plugin, err := NewPythonPlugin()
testutils.NoError(t, err)
// Setup: define a Python function and make sure that Run() finds
// it, so it can be added to a Fubsy namespace and used from Fubsy
// code.
pycode := `
def reverse_strings(*args):
'''takes N strings, reverses each one, then returns the reversed
strings concatenated into a single string with + between each
one'''
return '+'.join(''.join(reversed(arg)) for arg in args)`
values, err := plugin.Run(pycode)
testutils.NoError(t, err)
value, ok := values.Lookup("reverse_strings")
assert.True(t, ok)
pycallable := value.(PythonCallable)
assert.Equal(t, "reverse_strings", pycallable.Name())
// Call the Python function with 3 strings.
args := types.MakeStringList("foo", "blob", "pingpong").List()
argsource := types.MakeBasicArgs(nil, args, nil)
value, errs := pycallable.callPython(argsource)
testutils.NoErrors(t, errs)
// And test the returned value.
expect := types.MakeFuString("oof+bolb+gnopgnip")
assert.True(t, expect.Equal(value),
"expected %s, but got %s", expect, value)
}
func TestParse_valid_sequence(t *testing.T) {
tmpdir, cleanup := testutils.Mktemp()
defer cleanup()
// sequence of top-level children
script := `
main {
"boo"
}
plugin foo {{{
o'malley & friends
}}}
blob {
"meep"
}`
fn := testutils.Mkfile(tmpdir, "valid_2.fubsy", script)
ast, errs := Parse(fn)
testutils.NoErrors(t, errs)
expect := &ASTRoot{children: []ASTNode{
&ASTPhase{
name: "main",
children: []ASTNode{&ASTString{value: "boo"}}},
&ASTInline{
lang: "foo", content: "o'malley & friends"},
&ASTPhase{
name: "blob",
children: []ASTNode{&ASTString{value: "meep"}}},
}}
assertASTEqual(t, expect, ast)
}
func Test_evaluate_list(t *testing.T) {
rt := minimalRuntime()
rt.stack.Assign("blop", types.MakeFuString("bar"))
elements := []dsl.ASTExpression{
dsl.NewASTString("\"foo\""),
dsl.NewASTName("blop"),
dsl.NewASTString("\"baz\""),
}
astlist := dsl.NewASTList(elements)
actual, errs := rt.evaluate(astlist)
testutils.NoErrors(t, errs)
expect := types.MakeStringList("foo", "bar", "baz")
assert.Equal(t, expect, actual)
}