public async Task EscapingUnderstanding()
{
{
string arg = new string(Array.Empty <char>());
var a = await new System.Diagnostics.ProcessStartInfo("node", $"-e \"console.log({arg});\"").WaitForExitAndReadOutputAsync();
Assert(a.StandardOutput == "\n");
Assert(ProcessExtensions.ExecuteJS_Builder(NO_IMPORTS, "", new object[] { a.StandardOutput }).Contains(arg));
}
{
string arg = new string(new char[] { '\'', '\'' });
var b = await new System.Diagnostics.ProcessStartInfo("node", $"-e \"console.log({arg});\"").WaitForExitAndReadOutputAsync();
Assert(b.StandardOutput == "\n");
// Assert(ProcessExtensions.ExecuteJS_Builder(new string[0], "", new object[] { b.StandardOutput }).Contains(arg));
}
{
string arg = new string(new char[] { '"', '"', '"', '"' });
var b2 = await new System.Diagnostics.ProcessStartInfo("node", $"-e \"console.log({arg});\"").WaitForExitAndReadOutputAsync();
Assert(b2.StandardOutput == "\n");
// Assert(ProcessExtensions.ExecuteJS_Builder(new string[0], "", new object[] { b2.StandardOutput }).Contains(arg));
}
{
string arg = new string(new char[] { '"', 'a', '"' });
var c = await new System.Diagnostics.ProcessStartInfo("node", $"-e \"console.log({arg});\"").WaitForExitAndReadOutputAsync();
Assert(c.ErrorOutput.Contains("ReferenceError: a is not defined"));
}
{
// literal JS:
// console.log("a");
string arg = new string(new char[] { '\\', '"', 'a', '\\', '"' });
var d = await new System.Diagnostics.ProcessStartInfo("node", $"-e \"console.log({arg});\"").WaitForExitAndReadOutputAsync();
Assert(d.StandardOutput == "a\n");
string js = ProcessExtensions.ExecuteJS_Builder(NO_IMPORTS, "", new object[] { d.StandardOutput[..^ 1] });
public async Task StringTab()
{
const string deserializesToTab = "\"\\t\"";
void defaultJavascriptEncoderTabDeserialization()
{
Assert(JsonSerializer.Deserialize <string>(deserializesToTab) == "\t");
}
void unsafeJavascriptEncoderTabDeserialization()
{
var options = new JsonSerializerOptions {
Encoder = JavaScriptEncoder.UnsafeRelaxedJsonEscaping
};
Assert(JsonSerializer.Deserialize <string>(deserializesToTab, options) == "\t");
}
// this is correct js because it's tested in preTest via temp file rather than via bash
// this is what the JS should be such that a tab is printed:
const string correct_js = "\nvar result = \"\\t\";\n\nconsole.log('__DEBUG__');\nconsole.log(JSON.stringify(result));\n";
async Task preTest()
{
var(_, stdOut, _, _) = await ProcessExtensions.ExecuteJSViaTempFile(correct_js);
Assert(stdOut == deserializesToTab + "\n");
}
defaultJavascriptEncoderTabDeserialization();
unsafeJavascriptEncoderTabDeserialization();
await preTest();
// literal JS:
// console.log("\t");
const string input = "\t";
// test the built JS:
string js = ProcessExtensions.ExecuteJS_Builder(NO_IMPORTS, input);
Assert(correct_js == js);
// test the built JS, escaping to bash and executing:
string jsOutput = await executeJS((object)input);
Assert(jsOutput == deserializesToTab + "\n"); // if this fails it must be the bashEscape
}