Add tests directory.

README.md

@@ -23,7 +23,7 @@ display(message)
 For CV generators and processors, 256 is reasonable.
 For sequencers, 32 is reasonable since process() will be called every 0.7ms with a 44100kHz sample rate, which will capture 1ms-long triggers.
 For audio generators and processors, 1-8 is recommended, but it will consume lots of CPU.
-If this is too slow for your purposes, you should just write a C++ plugin.
+If this is too slow for your purposes, consider writing a C++ plugin, since native VCV Rack plugins are 10-100 faster.
 */
 config.frameDivider // 32
 
@@ -86,7 +86,7 @@ function process(args) {
 
 ## License
 
-All **source code** is copyright © 2019 Andrew Belt and licensed under the [BSD-3-Clause License](https://opensource.org/licenses/BSD-3-Clause).
+All **source code** is copyright © 2019 VCV Prototype Maintainers and licensed under the [BSD-3-Clause License](https://opensource.org/licenses/BSD-3-Clause).
 
 The **panel graphics** in the `res` directory are copyright © 2019 [Grayscale](http://grayscale.info/) and licensed under [CC BY-NC-ND 4.0](https://creativecommons.org/licenses/by-nc-nd/4.0/).
 You may not distribute modified adaptations of these graphics.

src/DuktapeEngine.cpp

@@ -63,6 +63,7 @@ struct DuktapeEngine : ScriptEngine {
 		duk_push_string(ctx, path.c_str());
 		if (duk_pcompile_lstring_filename(ctx, 0, script.c_str(), script.size()) != 0) {
 			const char* s = duk_safe_to_string(ctx, -1);
+			rack::WARN("duktape: %s", s);
 			setMessage(s);
 			duk_pop(ctx);
 			return -1;
@@ -70,6 +71,7 @@ struct DuktapeEngine : ScriptEngine {
 		// Execute function
 		if (duk_pcall(ctx, 0)) {
 			const char* s = duk_safe_to_string(ctx, -1);
+			rack::WARN("duktape: %s", s);
 			setMessage(s);
 			duk_pop(ctx);
 			return -1;
@@ -209,6 +211,7 @@ struct DuktapeEngine : ScriptEngine {
 		// Call process function
 		if (duk_pcall(ctx, 1)) {
 			const char* s = duk_safe_to_string(ctx, -1);
+			rack::WARN("duktape: %s", s);
 			setMessage(s);
 			duk_pop(ctx);
 			return -1;

src/Prototype.cpp

@@ -73,6 +73,7 @@ struct Prototype : Module {
 			// Check for certain inside the mutex
 			if (scriptEngine) {
 				if (scriptEngine->process(scriptArgs)) {
+					WARN("Script %s process() failed. Stopped script.", path.c_str());
 					clearScriptEngine();
 					return;
 				}
@@ -108,6 +109,7 @@ struct Prototype : Module {
 		clearScriptEngine();
 		// Get ScriptEngine from path extension
 		if (path == "") {
+			// Empty path means no script is requested. Fail silently.
 			return;
 		}
 		INFO("Loading script %s", path.c_str());

tests/process_error.js

@@ -0,0 +1,4 @@
+
+function process(args) {
+	args.test()
+}

tests/run_error.js

@@ -0,0 +1 @@
+test()

tests/syntax_error.js

@@ -0,0 +1 @@
+.test()