Put integration tests behind feature flag (#515)

* subxt: Add integration-tests feature flag

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* subxt: Guard integration tests under feature flag

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* test-runtime: Place build.rs under feature flag

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* subxt: Pass `integration-tests` feature to `test-runtime`

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* CI: Use `integration-tests` feature to run all tests

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* subxt: Rely on `#[cfg(feature = "integration-tests")]` for integration

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* subxt/metadata: Manually construct test metadata

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* artifacts: Move scale binary blob to dedicated folder

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* examples: Update path to metadata blob

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* metadata: Rely on artifact metadata blob for benches

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* metadata: Remove `test-runtime` dependency

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* examples: Modify runtime path for `custom_type_derives`

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* subxt: Remove tests folder

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* test-runtime: Remove `integration-tests` feature flag

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* integration-tests: Add an integration test crate for subxt

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* subxt: Remove `test-runtime` dependency

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* subxt: Add comment for feature flags

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* integration-tests: Trim dependencies

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* integration-tests: Move dependencies under dev

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* Revert "CI: Use `integration-tests` feature to run all tests"

This reverts commit 8e5f38ba8c633ac40420fadf58700ac402f762d4.

* integration-tests: Remove integration folder

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* subxt: Fix feature flag and test comment

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* subxt: Extra feature flag comment

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* integration-tests: Move tests content under src

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

subxt/Cargo.toml

@@ -12,6 +12,12 @@ homepage = "https://www.parity.io/"
 description = "Submit extrinsics (transactions) to a substrate node via RPC"
 keywords = ["parity", "substrate", "blockchain"]
 
+[features]
+# Activate this to expose functionality only used for integration testing.
+# The exposed functionality is subject to breaking changes at any point,
+# and should not be relied upon.
+integration-tests = []
+
 [dependencies]
 bitvec = { version = "1.0.0", default-features = false, features = ["alloc"] }
 codec = { package = "parity-scale-codec", version = "3.0.0", default-features = false, features = ["derive", "full", "bit-vec"] }
@@ -42,5 +48,4 @@ env_logger = "0.9.0"
 tempdir = "0.3.7"
 wabt = "0.10.0"
 which = "4.0.2"
-test-runtime = { path = "../test-runtime" }
 sp-keyring = "6.0.0"