test: address pr comments (#86)

* test: moved testdata folder
* test: make test parallel
* chore: remove comments

Author: ascandone

internal/interpreter/interpreter_test.go

@@ -17,9 +17,11 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
-const scriptsFolder = "../../testdata/script-tests"
+const scriptsFolder = "testdata/script-tests"
 
 func TestScripts(t *testing.T) {
+	t.Parallel()
+
 	rawSpecs, err := specs_format.ReadSpecsFiles([]string{scriptsFolder})
 	require.Nil(t, err)
 
@@ -419,8 +421,6 @@ func TestNegativeBalanceLiteral(t *testing.T) {
 	test(t, tc)
 }
 
-// TODO TestVariablesParsing, TestSetVarsFromJSON, TestResolveResources, TestResolveBalances, TestMachine
-
 func TestOverdraftBadCurrency(t *testing.T) {
 	tc := NewTestCase()
 	tc.compile(t, `