diff --git a/.circleci/config.yml b/.circleci/config.yml
index e64dc82cb4..890a6488ed 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -31,6 +31,7 @@ jobs:
             python3 -m pip install --upgrade pip --quiet
             bin/test/test_prerequisites.sh
             echo "================= Tests units ================="
+            cargo build --verbose --locked --color always
             cargo test --features strict --verbose --color always
             mitmdump --version
             pip3 install lxml bs4
diff --git a/.github/workflows/package.yml b/.github/workflows/package.yml
index 515c18937d..d2b11b1b2a 100644
--- a/.github/workflows/package.yml
+++ b/.github/workflows/package.yml
@@ -34,10 +34,6 @@ jobs:
       run: |
         bin/release/release.sh
         echo "PATH=:${PWD}/target/release:$PATH" >> "${GITHUB_ENV}"
-    - name: Test integ
-      run: |
-        bin/test/test_prerequisites.sh
-        bin/test/test_integ.sh
     - name: Get version
       run: |
         VERSION=$(bin/release/get_version.sh)
@@ -213,10 +209,6 @@ jobs:
       run: |
         bin/release/release.sh
         echo "PATH=:${PWD}/target/release:$PATH" >> "${GITHUB_ENV}"
-    - name: Test integ
-      run: |
-        bin/test/test_prerequisites.sh
-        bin/test/test_integ.sh
     - name: Get version
       run: |
         VERSION=$(bin/release/get_version.sh)
@@ -253,10 +245,6 @@ jobs:
         brew install pkg-config
         bin/release/release.sh
         echo "PATH=:${PWD}/target/release:$PATH" >> "${GITHUB_ENV}"
-    - name: Test integ
-      run: |
-        bin/test/test_prerequisites.sh
-        bin/test/test_integ.sh
     - name: Get version
       run: |
         VERSION=$(bin/release/get_version.sh)
@@ -308,11 +296,9 @@ jobs:
       run: .\bin\environment.ps1
     - name: Install prerequisites
       run: .\bin\install_prerequisites_windows.ps1
-    - name: Build and test integ
+    - name: Build
       run: |
         .\bin\release\release.ps1
-        .\bin\test\test_prerequisites.ps1
-        .\bin\test\test_integ.ps1
     - name: Create windows64 Zip package
       run: .\bin\release\create_windows64_zip_package.ps1
     - name: Install win64 zip and test integ
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index e0e8eeb844..942b72a66b 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -63,6 +63,7 @@ jobs:
     - name: Tests units
       run: |
         bin/test/test_unit.sh
+        bin/release/release.sh
         echo "PATH=${PWD}/target/release:$PATH" >> "${GITHUB_ENV}"
     - name: Integration Tests
       run: bin/test/test_integ.sh
@@ -101,6 +102,7 @@ jobs:
     - name: Tests units
       run: |
         bin/test/test_unit.sh
+        bin/release/release.sh
         echo "PATH=${PWD}/target/release:$PATH" >> "${GITHUB_ENV}"
     - name: Integration Tests
       run: bin/test/test_integ.sh
@@ -244,8 +246,8 @@ jobs:
       run: bin/test/test_prerequisites.sh
     - name: Tests units
       run: |
-        brew install pkg-config
         bin/test/test_unit.sh
+        bin/release/release.sh
         echo "PATH=${PWD}/target/release:$PATH" >> "${GITHUB_ENV}"
     - name: Integration Tests
       run: bin/test/test_integ.sh
diff --git a/bin/test/test.ps1 b/bin/test/test.ps1
index 1073c4b105..03b1372bed 100644
--- a/bin/test/test.ps1
+++ b/bin/test/test.ps1
@@ -7,5 +7,8 @@ powershell write-host -foregroundcolor Cyan "----- tests -----"
 if ($LASTEXITCODE) { Throw }
 & $PSScriptRoot\test_unit.ps1
 if ($LASTEXITCODE) { Throw }
+& $PSScriptRoot\..\release\release.ps1
+if ($LASTEXITCODE) { Throw }
 & $PSScriptRoot\test_integ.ps1
 if ($LASTEXITCODE) { Throw }
+
diff --git a/bin/test/test.sh b/bin/test/test.sh
index e08836d4b9..c02b749006 100755
--- a/bin/test/test.sh
+++ b/bin/test/test.sh
@@ -3,6 +3,8 @@ set -Eeuo pipefail
 
 "$(dirname "$0")"/test_prerequisites.sh
 "$(dirname "$0")"/test_unit.sh
+"$(dirname "$0")"/../release/release.sh
 export PATH="${PWD}/target/release:$PATH"
 "$(dirname "$0")"/test_integ.sh
 
+
diff --git a/bin/test/test_unit.ps1 b/bin/test/test_unit.ps1
index 6c41b338bc..78151d03a8 100644
--- a/bin/test/test_unit.ps1
+++ b/bin/test/test_unit.ps1
@@ -6,25 +6,3 @@ powershell write-host -foregroundcolor Cyan "----- unit tests  -----"
 # run test units
 cargo test --release --features strict --tests
 if ($LASTEXITCODE) { Throw }
-
-# create test package
-$project_root_path=(Resolve-Path -LiteralPath $PSScriptRoot\..\..).path
-$release_dir="$project_root_path\target\release"
-$package_dir="$project_root_path\target\test-package"
-New-Item -ItemType Directory -Force -Path "$package_dir"
-Get-ChildItem -Path $release_dir -Recurse -Include *.dll -File | Copy-Item -Destination $package_dir
-Get-ChildItem -Path $release_dir -Recurse -Include hurl*.exe -File | Copy-Item -Destination $package_dir
-
-# add hurl to PATH
-$registry_user_path=(Get-ItemProperty -Path 'HKCU:\Environment').Path
-$registry_machine_path=(Get-ItemProperty -Path 'HKLM:\SYSTEM\CurrentControlSet\Control\Session Manager\Environment').Path
-$env:Path = "$package_dir;$registry_user_path;$registry_machine_path"
-sleep 10
-
-# hurl infos
-(Get-Command hurl).Path
-(Get-Command hurlfmt).Path
-hurl --version
-if ($LASTEXITCODE) { Throw }
-hurlfmt --version
-if ($LASTEXITCODE) { Throw }
diff --git a/bin/test/test_unit.sh b/bin/test/test_unit.sh
index eb3b8b48b0..5898f31406 100755
--- a/bin/test/test_unit.sh
+++ b/bin/test/test_unit.sh
@@ -5,9 +5,3 @@ echo "----- unit tests  -----"
 PATH="$HOME"/.cargo/bin:$PATH
 export PATH
 cargo test --release
-
-# Return PATH var to parent shell
-package_dir="$(cd target/release ; pwd)"
-echo "Run this if you want to use fresh builded hurl package:"
-echo "  export PATH=$package_dir:$PATH"
-
diff --git a/packages/hurl/src/http/tests/libcurl.rs b/packages/hurl/src/http/tests/libcurl.rs
index f47ec38d17..d03f37102d 100644
--- a/packages/hurl/src/http/tests/libcurl.rs
+++ b/packages/hurl/src/http/tests/libcurl.rs
@@ -619,15 +619,11 @@ fn test_cacert() {
 
     assert_eq!(
         certificate.issuer,
-        "C=US, ST=Denial, L=Springfield, O=Dis, CN=localhost"
-            .to_string()
-            .to_string()
+        "C=US, ST=Denial, L=Springfield, O=Dis, CN=localhost".to_string()
     );
     assert_eq!(
         certificate.subject,
-        "C=US, ST=Denial, L=Springfield, O=Dis, CN=localhost"
-            .to_string()
-            .to_string()
+        "C=US, ST=Denial, L=Springfield, O=Dis, CN=localhost".to_string()
     );
     assert_eq!(
         certificate.start_date,