Make string coercion tests more precise

test/built-ins/RegExp/prototype/Symbol.replace/fn-coerce-replacement.js

@@ -2,19 +2,19 @@
 // This code is governed by the BSD license found in the LICENSE file.
 
 /*---
-description: String coercion of the value returned by functional replaceValue
-es6id: 21.2.5.8
+esid: sec-regexp.prototype-@@replace
+description: >
+  String coercion of the value returned by functional replaceValue.
 info: |
-    16. Repeat, for each result in results,
-        [...]
-        m. If functionalReplace is true, then
-           i. Let replacerArgs be «matched».
-           ii. Append in list order the elements of captures to the end of the
-               List replacerArgs.
-           iii. Append position and S as the last two elements of replacerArgs.
-           iv. Let replValue be Call(replaceValue, undefined, replacerArgs).
-           v. Let replacement be ToString(replValue).
-        [...]
+  RegExp.prototype [ @@replace ] ( string, replaceValue )
+
+  [...]
+  14. For each result in results, do
+    [...]
+    k. If functionalReplace is true, then
+      [...]
+      v. Let replValue be ? Call(replaceValue, undefined, replacerArgs).
+      vi. Let replacement be ? ToString(replValue).
 features: [Symbol.replace]
 ---*/
 
@@ -22,7 +22,10 @@ var replacer = function() {
   return {
     toString: function() {
       return 'toString value';
-    }
+    },
+    valueOf: function() {
+      throw new Test262Error('This method should not be invoked.');
+    },
   };
 };
 

test/built-ins/RegExp/prototype/Symbol.replace/result-coerce-capture.js

@@ -2,32 +2,38 @@
 // This code is governed by the BSD license found in the LICENSE file.
 
 /*---
-description: Type coercion of `1` property of result
-es6id: 21.2.5.8
+esid: sec-regexp.prototype-@@replace
+description: >
+  String coercion of "3" property of the value returned by RegExpExec.
 info: |
+  RegExp.prototype [ @@replace ] ( string, replaceValue )
+
+  [...]
+  11. Repeat, while done is false
+    a. Let result be ? RegExpExec(rx, S).
     [...]
-    13. Repeat, while done is false
-        a. Let result be RegExpExec(rx, S).
+  14. For each result in results, do
+    [...]
+    i. Repeat, while n ≤ nCaptures
+      i. Let capN be ? Get(result, ! ToString(n)).
+      ii. If capN is not undefined, then
+        1. Set capN to ? ToString(capN).
         [...]
-    16. Repeat, for each result in results,
-        [...]
-        l. Repeat while n ≤ nCaptures
-           i. Let capN be Get(result, ToString(n)).
-           ii. ReturnIfAbrupt(capN).
-           iii. If capN is not undefined, then
-                1. Let capN be ToString(capN).
-                [...]
 features: [Symbol.replace]
 ---*/
 
 var r = /./;
 var coercibleValue = {
   length: 4,
+  index: 0,
   3: {
     toString: function() {
       return 'toString value';
-    }
-  }
+    },
+    valueOf: function() {
+      throw new Test262Error('This method should not be invoked.');
+    },
+  },
 };
 r.exec = function() {
   return coercibleValue;

test/built-ins/RegExp/prototype/Symbol.replace/result-coerce-matched.js

@@ -2,27 +2,34 @@
 // This code is governed by the BSD license found in the LICENSE file.
 
 /*---
-description: Type coercion of `0` property of result
-es6id: 21.2.5.8
+esid: sec-regexp.prototype-@@replace
+description: >
+  String coercion of "0" property of the value returned by RegExpExec.
 info: |
+  RegExp.prototype [ @@replace ] ( string, replaceValue )
+
+  [...]
+  11. Repeat, while done is false
+    a. Let result be ? RegExpExec(rx, S).
     [...]
-    13. Repeat, while done is false
-        a. Let result be RegExpExec(rx, S).
-        [...]
-    16. Repeat, for each result in results,
-        [...]
-        d. Let matched be ToString(Get(result, "0")).
-        [...]
+  14. For each result in results, do
+    [...]
+    c. Let matched be ? ToString(? Get(result, "0")).
 features: [Symbol.replace]
 ---*/
 
 var r = /./;
 var coercibleValue = {
+  length: 1,
   0: {
     toString: function() {
       return 'toString value';
-    }
-  }
+    },
+    valueOf: function() {
+      throw new Test262Error('This method should not be invoked.');
+    },
+  },
+  index: 0,
 };
 r.exec = function() {
   return coercibleValue;