src/defs.js: Fix conversion of non-BMP unicode codepoints

Adds tests for to_luastring

1 files changed, 50 insertions, 0 deletions

diff --git a/tests/defs.js b/tests/defs.js
new file mode 100644
index 0000000..8c86588
--- /dev/null
+++ b/tests/defs.js
@@ -0,0 +1,50 @@
+const test = require('tape');
+
+global.WEB = false;
+const defs = require('../src/defs.js');
+
+test('to_luastring', function (t) {
+    t.deepEqual(
+        defs.to_luastring("foo"),
+        ["f".charCodeAt(0), "o".charCodeAt(0), "o".charCodeAt(0)],
+        "Convert normal ascii string"
+    );
+
+    t.deepEqual(
+        defs.to_luastring("fo\0o"),
+        ["f".charCodeAt(0), "o".charCodeAt(0), 0, "o".charCodeAt(0)],
+        "Convert ascii string containing null byte"
+    );
+
+    t.deepEqual(
+        defs.to_luastring("Café"),
+        [67, 97, 102, 195, 169],
+        "Convert string with BMP unicode chars"
+    );
+
+    t.deepEqual(
+        defs.to_luastring(""),
+        [239, 163, 191],
+        "Convert string with codepoint in PUA (U+E000 to U+F8FF)"
+    );
+
+    t.deepEqual(
+        defs.to_luastring("❤️🍾"),
+        [226, 157, 164, 239, 184, 143, 240, 159, 141, 190],
+        "Convert string with surrogate pair"
+    );
+
+    t.deepEqual(
+        defs.to_luastring("\uD800a"),
+        [237, 160, 128, 97],
+        "Convert string with broken surrogate pair"
+    );
+
+    t.deepEqual(
+        defs.to_luastring("\uD823"),
+        [237, 160, 163],
+        "Convert string with broken surrogate pair at end of string"
+    );
+
+    t.end();
+});