JSON.parse() testcases

testcases/test-builtin-json-dec-array.js

@@ -0,0 +1,52 @@
+/*===
+SyntaxError
+===*/
+
+/* Don't allow empty object with just comma */
+
+try {
+    print(JSON.parse('[,]'));
+} catch (e) {
+    print(e.name);
+}
+
+/*===
+SyntaxError
+===*/
+
+/* Don't allow initial comma */
+
+try {
+    print(JSON.parse('[,1]'));
+} catch (e) {
+    print(e.name);
+}
+
+
+/*===
+SyntaxError
+===*/
+
+/* Don't allow trailing comma.
+ *
+ * Rhino allows this.
+ */
+
+try {
+    print(JSON.parse('[1,]'));
+} catch (e) {
+    print(e.name);
+}
+
+/*===
+SyntaxError
+===*/
+
+/* Don't allow successive commas (elisions) */
+
+try {
+    print(JSON.parse('[1,,2]'));
+} catch (e) {
+    print(e.name);
+}
+

testcases/test-builtin-json-dec-empty.js

@@ -0,0 +1,19 @@
+/*===
+SyntaxError
+SyntaxError
+===*/
+
+/* Empty or pure white space is a SyntaxError. */
+
+try {
+    print(JSON.parse(''));
+} catch (e) {
+    print(e.name);
+}
+
+try {
+    print(JSON.parse(' \n\r\t'));
+} catch (e) {
+    print(e.name);
+}
+

testcases/test-builtin-json-dec-whitespace.js

@@ -0,0 +1,26 @@
+/*===
+1
+1
+SyntaxError
+===*/
+
+/* Allow leading and trailing whitespace, but no other garbage */
+
+try {
+    print(JSON.parse('1'));
+} catch (e) {
+    print(e.name);
+}
+
+try {
+    print(JSON.parse('\t\n  1  \t\n'));
+} catch (e) {
+    print(e.name);
+}
+
+try {
+    print(JSON.parse('1    x'));
+} catch (e) {
+    print(e.name);
+}
+