Improve LayoutTest output for Errors

LayoutTests/crypto/aes-cbc-generateKey-parseAlgorithm-failures.html

Index: LayoutTests/crypto/aes-cbc-generateKey-parseAlgorithm-failures.html
diff --git a/LayoutTests/crypto/aes-cbc-generateKey-parseAlgorithm-failures.html b/LayoutTests/crypto/aes-cbc-generateKey-parseAlgorithm-failures.html
index ef0b91de105df66862982e4550f0765664494914..0c8e6275df8aefa3350c85be255a7b4f65df6ea8 100644
--- a/LayoutTests/crypto/aes-cbc-generateKey-parseAlgorithm-failures.html
+++ b/LayoutTests/crypto/aes-cbc-generateKey-parseAlgorithm-failures.html
@@ -17,32 +17,39 @@ keyUsages = ['encrypt', 'decrypt'];
 
 Promise.resolve(null).then(function() {
     // Invalid keyUsages

[eroman, 2014/12/12 19:37:01]

Can you remove the comments? (They add no value now that there is a debug
message with even more detail).

[Paritosh Kumar, 2014/12/15 08:21:26]

Done.

+    debug("\ngenerateKey() with invalid keyUsages value that is -1...");
     return crypto.subtle.generateKey({ name: 'aes-cbc', length: 1024 }, extractable, -1);
 }).then(failAndFinishJSTest, function(result) {
     logError(result);
 
     // Invalid keyUsages
+    debug("\ngenerateKey() with invalid keyUsages value that is null...");
     return crypto.subtle.generateKey({ name: 'aes-cbc', length: 1024 }, extractable, null);
 }).then(failAndFinishJSTest, function(result) {
     logError(result);
 
     // Bad key usage "boo".
+    debug("\ngenerateKey() with bad keyUsages value that is a string...");

[eroman, 2014/12/12 19:37:01]

"generateKey() with an invalid key usage of 'boo'"

[Paritosh Kumar, 2014/12/15 08:21:26]

Done.

     return crypto.subtle.generateKey({ name: 'aes-cbc', length: 1024 }, extractable, ['boo']);
 }).then(failAndFinishJSTest, function(result) {
     logError(result);
 
+    debug("\ngenerateKey() without length...");
     return crypto.subtle.generateKey({ name: 'aes-cbc' }, extractable, keyUsages);
 }).then(failAndFinishJSTest, function(result) {
     logError(result);
 
+    debug("\ngenerateKey() with length larger than range...");

[eroman, 2014/12/12 19:37:01]

"generateKey() with a length of 70000"

I think there is value in specifying the exact numeric value, since part of
looking at text expectations it to verify that the range enforcement is correct.

[Paritosh Kumar, 2014/12/15 08:21:26]

Done.

     return crypto.subtle.generateKey({ name: 'aes-cbc', length: 70000 }, extractable, keyUsages);
 }).then(failAndFinishJSTest, function(result) {
     logError(result);
 
+    debug("\ngenerateKey() with negative length...");

[eroman, 2014/12/12 19:37:01]

generateKey() with a length of -3

[Paritosh Kumar, 2014/12/15 08:21:26]

Done.

     return crypto.subtle.generateKey({ name: 'aes-cbc', length: -3 }, extractable, keyUsages);
 }).then(failAndFinishJSTest, function(result) {
     logError(result);
 
+    debug("\ngenerateKey() with length that is minus Infinity...");
     return crypto.subtle.generateKey({ name: 'aes-cbc', length: -Infinity }, extractable, keyUsages);
 }).then(failAndFinishJSTest, function(result) {
     logError(result);