diff --git a/test/built-ins/DataView/prototype/getBigInt64/detached-buffer-after-toindex-byteoffset.js b/test/built-ins/DataView/prototype/getBigInt64/detached-buffer-after-toindex-byteoffset.js
index 8a3d35d67f..86822d650a 100644
--- a/test/built-ins/DataView/prototype/getBigInt64/detached-buffer-after-toindex-byteoffset.js
+++ b/test/built-ins/DataView/prototype/getBigInt64/detached-buffer-after-toindex-byteoffset.js
@@ -29,6 +29,8 @@ var sample = new DataView(buffer, 0);
 
 $DETACHBUFFER(buffer);
 
-assert.throws(RangeError, () => sample.getBigInt64(Infinity), "Infinity");
+assert.throws(RangeError, () => sample.getBigInt64(Infinity),
+              "DataView access at index Infinity should throw");
 
-assert.throws(RangeError, () => sample.getBigInt64(-1), "-1");
+assert.throws(RangeError, () => sample.getBigInt64(-1),
+              "DataView access at index -1 should throw");
diff --git a/test/built-ins/DataView/prototype/getBigInt64/detached-buffer-before-outofrange-byteoffset.js b/test/built-ins/DataView/prototype/getBigInt64/detached-buffer-before-outofrange-byteoffset.js
index 1c6c4259b3..3dc344f847 100644
--- a/test/built-ins/DataView/prototype/getBigInt64/detached-buffer-before-outofrange-byteoffset.js
+++ b/test/built-ins/DataView/prototype/getBigInt64/detached-buffer-before-outofrange-byteoffset.js
@@ -31,4 +31,5 @@ sample = new DataView(buffer, 0);
 
 $DETACHBUFFER(buffer);
 
-assert.throws(TypeError, () => sample.getBigInt64(13), "13");
+assert.throws(TypeError, () => sample.getBigInt64(13),
+              "detached DataView access should throw");
diff --git a/test/built-ins/DataView/prototype/getBigInt64/detached-buffer.js b/test/built-ins/DataView/prototype/getBigInt64/detached-buffer.js
index 19973b4ed0..b5275515e8 100644
--- a/test/built-ins/DataView/prototype/getBigInt64/detached-buffer.js
+++ b/test/built-ins/DataView/prototype/getBigInt64/detached-buffer.js
@@ -26,4 +26,5 @@ var buffer = new ArrayBuffer(1);
 var sample = new DataView(buffer, 0);
 
 $DETACHBUFFER(buffer);
-assert.throws(TypeError, () => sample.getBigInt64(0), "0");
+assert.throws(TypeError, () => sample.getBigInt64(0),
+              "detached DataView access should throw");
diff --git a/test/built-ins/DataView/prototype/getBigInt64/index-is-out-of-range.js b/test/built-ins/DataView/prototype/getBigInt64/index-is-out-of-range.js
index 9610d7a6e1..3a69ff53d7 100644
--- a/test/built-ins/DataView/prototype/getBigInt64/index-is-out-of-range.js
+++ b/test/built-ins/DataView/prototype/getBigInt64/index-is-out-of-range.js
@@ -30,7 +30,7 @@ var buffer = new ArrayBuffer(12);
 sample = new DataView(buffer, 0);
 
 assert.throws(RangeError, () => sample.getBigInt64(Infinity),
-              "Infinity");
+              "DataView access at index Infinity should throw");
 
 assert.throws(RangeError, () => sample.getBigInt64(13), "13 + 8 > 12");
 
diff --git a/test/built-ins/DataView/prototype/getBigInt64/negative-byteoffset-throws.js b/test/built-ins/DataView/prototype/getBigInt64/negative-byteoffset-throws.js
index e03b2274a8..39913eb7d7 100644
--- a/test/built-ins/DataView/prototype/getBigInt64/negative-byteoffset-throws.js
+++ b/test/built-ins/DataView/prototype/getBigInt64/negative-byteoffset-throws.js
@@ -23,7 +23,8 @@ features: [DataView, ArrayBuffer, BigInt, arrow-function]
 var buffer = new ArrayBuffer(12);
 var sample = new DataView(buffer, 0);
 
-assert.throws(RangeError, () => sample.getBigInt64(-1), "-1");
+assert.throws(RangeError, () => sample.getBigInt64(-1),
+              "DataView access at index -1 should throw");
 
 assert.throws(RangeError, () => sample.getBigInt64(-Infinity),
-              "-Infinity");
+              "DataView access at index -Infinity should throw");