diff --git a/test/language/import/import-defer/deferred-namespace-object/exotic-object-behavior.js b/test/language/import/import-defer/deferred-namespace-object/exotic-object-behavior.js
index 4274b6e170..2b2b041ae9 100644
--- a/test/language/import/import-defer/deferred-namespace-object/exotic-object-behavior.js
+++ b/test/language/import/import-defer/deferred-namespace-object/exotic-object-behavior.js
@@ -35,7 +35,7 @@ assert.sameValue(Reflect.setPrototypeOf(ns, {}), false, "Deferred namespaces' pr
 assert.sameValue(Reflect.setPrototypeOf(ns, null), true, "Deferred namespaces' prototype can be 'set' to null");
 
 assert.throws(TypeError, () => Reflect.apply(ns, null, []), "Deferred namespaces are not callable");
-assert.throws(TypeError, () => Reflect.construct(ns, null, []), "Deferred namespaces are not constructable");
+assert.throws(TypeError, () => Reflect.construct(ns, [], ns), "Deferred namespaces are not constructable");
 
 assert.compareArray(
   Reflect.ownKeys(ns),
diff --git a/test/language/import/import-defer/errors/get-self-while-evaluating-async/main.js b/test/language/import/import-defer/errors/get-self-while-evaluating-async/main.js
index d51ec49f35..069d07699e 100644
--- a/test/language/import/import-defer/errors/get-self-while-evaluating-async/main.js
+++ b/test/language/import/import-defer/errors/get-self-while-evaluating-async/main.js
@@ -29,6 +29,17 @@ flags: [module, async]
 features: [import-defer, top-level-await]
 ---*/
 
+/*
+`./dep_FIXTURE.js` is _not_ deferred, because it contains top-level await. So what is happening in this test is that:
+- the deferred module is not actually deferred, so `dep_FIXTURE.js` starts executing and goes in its `evaluating` state
+- it has access to a deferred namespace of itself
+- once it reaches the `await`, the state changes to `evaluating-async`
+- the test tries then to access a property from the deferred namespace while it's `evaluating-async` (which is what this test it testing). It should throw.
+- `dep_FIXTURE.js` is done, and becomes `evaluated`
+- `main.js` starts evaluating, and the error is already there
+- `ns.foo` now works, because `ns` is `evaluated` and not `evaluating-async`
+*/
+
 import defer * as ns from "./dep_FIXTURE.js";
 
 assert(globalThis["error on ns.foo"] instanceof TypeError, "ns.foo while evaluating throws a TypeError");
diff --git a/test/language/import/import-defer/errors/module-throws/defer-import-after-evaluation.js b/test/language/import/import-defer/errors/module-throws/defer-import-after-evaluation.js
index 92b6bdf740..cb32449e1c 100644
--- a/test/language/import/import-defer/errors/module-throws/defer-import-after-evaluation.js
+++ b/test/language/import/import-defer/errors/module-throws/defer-import-after-evaluation.js
@@ -26,13 +26,13 @@ info: |
 
 flags: [module, async]
 features: [import-defer]
-includes: [asyncHelpers.js, deepEqual.js]
+includes: [asyncHelpers.js]
 ---*/
 
 asyncTest(async () => {
   let err1;
   await import("./throws_FIXTURE.js").catch((e) => { err1 = e });
-  assert.deepEqual(err1, { someError: "the error from throws_FIXTURE" });
+  assert.sameValue(err1.someError, "the error from throws_FIXTURE");
 
   const { ns } = await import("./import-defer-throws_FIXTURE.js");
 
diff --git a/test/language/import/import-defer/errors/module-throws/third-party-evaluation-after-defer-import.js b/test/language/import/import-defer/errors/module-throws/third-party-evaluation-after-defer-import.js
index 42b86f7b44..ad37535b4a 100644
--- a/test/language/import/import-defer/errors/module-throws/third-party-evaluation-after-defer-import.js
+++ b/test/language/import/import-defer/errors/module-throws/third-party-evaluation-after-defer-import.js
@@ -26,7 +26,7 @@ info: |
 
 flags: [module, async]
 features: [import-defer]
-includes: [asyncHelpers.js, deepEqual.js]
+includes: [asyncHelpers.js]
 ---*/
 
 import defer * as ns from "./throws_FIXTURE.js";
@@ -34,7 +34,7 @@ import defer * as ns from "./throws_FIXTURE.js";
 asyncTest(async () => {
   let err1;
   await import("./throws_FIXTURE.js").catch((e) => { err1 = e });
-  assert.deepEqual(err1, { someError: "the error from throws_FIXTURE" });
+  assert.sameValue(err1.someError, "the error from throws_FIXTURE");
 
   let err2;
   try { ns.foo } catch (e) { err2 = e };
diff --git a/test/language/import/import-defer/errors/module-throws/trigger-evaluation.js b/test/language/import/import-defer/errors/module-throws/trigger-evaluation.js
index 337b49c96c..e18d4dec0f 100644
--- a/test/language/import/import-defer/errors/module-throws/trigger-evaluation.js
+++ b/test/language/import/import-defer/errors/module-throws/trigger-evaluation.js
@@ -26,7 +26,6 @@ info: |
 
 flags: [module]
 features: [import-defer]
-includes: [deepEqual.js]
 ---*/
 
 import defer * as ns from "./throws_FIXTURE.js";
diff --git a/test/language/import/import-defer/errors/resolution-error/import-defer-of-syntax-error-fails.js b/test/language/import/import-defer/errors/resolution-error/import-defer-of-missing-module-fails.js
similarity index 100%
rename from test/language/import/import-defer/errors/resolution-error/import-defer-of-syntax-error-fails.js
rename to test/language/import/import-defer/errors/resolution-error/import-defer-of-missing-module-fails.js
diff --git a/test/language/import/import-defer/syntax/valid-default-binding-named-defer.js b/test/language/import/import-defer/syntax/valid-default-binding-named-defer.js
index 16743bac5b..a69b000742 100644
--- a/test/language/import/import-defer/syntax/valid-default-binding-named-defer.js
+++ b/test/language/import/import-defer/syntax/valid-default-binding-named-defer.js
@@ -26,3 +26,5 @@ features: [import-defer]
 ---*/
 
 import defer from "./dep_FIXTURE.js";
+
+asserts.sameValue(defer, 1, "`defer` is the default export binding");