diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index f3e1cb9..43dad60 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -9,8 +9,22 @@ on:
 
 jobs:
 
+  test:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Set up Go
+      uses: actions/setup-go@v5
+      with:
+        go-version: '1.25'
+
+    - name: Run tests
+      run: make tests-with-docker
+
   build:
     runs-on: ubuntu-latest
+    needs: test
     steps:
     - uses: actions/checkout@v4
 
@@ -18,7 +32,7 @@ jobs:
       uses: actions/setup-go@v5
       with:
         go-version: '1.25'
-        
+
     - name: Build
       env:
         RELEASE_BUILD_LINKER_FLAGS: "-s -w"
diff --git a/.github/workflows/integ-tests.yml b/.github/workflows/integ-tests.yml
index 1205a3e..1ac0a78 100644
--- a/.github/workflows/integ-tests.yml
+++ b/.github/workflows/integ-tests.yml
@@ -1,10 +1,10 @@
 name: Run Integration Tests
 
-on:
-  pull_request:
-    branches:
-      - develop
-
+# on:
+#   pull_request:
+#     branches:
+#       - develop
+#
 jobs:
   go-tests:
     runs-on: ubuntu-latest
@@ -46,4 +46,4 @@ jobs:
           with:
             python-version: '3.14'
         - name: run integration tests
-          run: make integ-tests-with-docker-old
\ No newline at end of file
+          run: make integ-tests-with-docker-old
diff --git a/lambda/core/directinvoke/directinvoke_test.go b/lambda/core/directinvoke/directinvoke_test.go
index 94b6323..4682270 100644
--- a/lambda/core/directinvoke/directinvoke_test.go
+++ b/lambda/core/directinvoke/directinvoke_test.go
@@ -119,7 +119,7 @@ func TestAsyncPayloadCopyWhenPayloadSizeBelowMaxAllowed(t *testing.T) {
 	require.Equal(t, EndOfResponseComplete, writer.Header().Get(EndOfResponseTrailer))
 
 	// reset it to its original value
-	MaxDirectResponseSize = interop.MaxPayloadSize
+	MaxDirectResponseSize = int64(interop.MaxPayloadSize)
 }
 
 func TestAsyncPayloadCopyWhenPayloadSizeEqualMaxAllowed(t *testing.T) {
@@ -138,7 +138,7 @@ func TestAsyncPayloadCopyWhenPayloadSizeEqualMaxAllowed(t *testing.T) {
 	require.Equal(t, EndOfResponseComplete, writer.Header().Get(EndOfResponseTrailer))
 
 	// reset it to its original value
-	MaxDirectResponseSize = interop.MaxPayloadSize
+	MaxDirectResponseSize = int64(interop.MaxPayloadSize)
 }
 
 func TestAsyncPayloadCopyWhenPayloadSizeAboveMaxAllowed(t *testing.T) {
@@ -163,7 +163,7 @@ func TestAsyncPayloadCopyWhenPayloadSizeAboveMaxAllowed(t *testing.T) {
 	require.Equal(t, EndOfResponseOversized, writer.Header().Get(EndOfResponseTrailer))
 
 	// reset it to its original value
-	MaxDirectResponseSize = interop.MaxPayloadSize
+	MaxDirectResponseSize = int64(interop.MaxPayloadSize)
 }
 
 // This is only allowed in streaming mode, currently.
@@ -183,7 +183,7 @@ func TestAsyncPayloadCopyWhenUnlimitedPayloadSizeAllowed(t *testing.T) {
 	require.Equal(t, EndOfResponseComplete, writer.Header().Get(EndOfResponseTrailer))
 
 	// reset it to its original value
-	MaxDirectResponseSize = interop.MaxPayloadSize
+	MaxDirectResponseSize = int64(interop.MaxPayloadSize)
 }
 
 // We use an interruptable response writer which informs on a channel that it's ready to be interrupted after
@@ -275,7 +275,7 @@ func TestSendPayloadLimitedResponseWithinThresholdWithStreamingFunction(t *testi
 	<-testFinished
 
 	// Reset to its default value, just in case other tests use them
-	MaxDirectResponseSize = interop.MaxPayloadSize
+	MaxDirectResponseSize = int64(interop.MaxPayloadSize)
 }
 
 func TestSendPayloadLimitedResponseAboveThresholdWithStreamingFunction(t *testing.T) {
@@ -310,7 +310,7 @@ func TestSendPayloadLimitedResponseAboveThresholdWithStreamingFunction(t *testin
 	<-testFinished
 
 	// Reset to its default value, just in case other tests use them
-	MaxDirectResponseSize = interop.MaxPayloadSize
+	MaxDirectResponseSize = int64(interop.MaxPayloadSize)
 }
 
 func TestSendStreamingInvokeResponseSuccessWithTrailers(t *testing.T) {
diff --git a/lambda/interop/model.go b/lambda/interop/model.go
index ee7bb2a..2991d8e 100644
--- a/lambda/interop/model.go
+++ b/lambda/interop/model.go
@@ -356,7 +356,7 @@ type ErrorResponseTooLargeDI struct {
 
 // ErrorResponseTooLarge is returned when response provided by Runtime does not fit into shared memory buffer
 func (s *ErrorResponseTooLarge) Error() string {
-	return fmt.Sprintf("Response payload size exceeded maximum allowed payload size (%d bytes).", s.MaxResponseSize)
+	return fmt.Sprintf("Response payload size (%d bytes) exceeded maximum allowed payload size (%d bytes).", s.ResponseSize, s.MaxResponseSize)
 }
 
 // AsErrorResponse generates ErrorInvokeResponse from ErrorResponseTooLarge