Merge branch 'dev-section-redesign' into reSkinReferenceDocs

* dev-section-redesign: (87 commits)
  Added note about restriction on `testDirectory`
  fix(dev-utils): Make chai a dev dependency since exported interface depends on it
  Add changelog entries
  fix(subproviders): make web3-provider-engine types a 'dependency' so it's available to users of the library
  fix(sra-spec): make @loopback/openapi-v3-types a 'dependency' so it's available to users of the library
  fix(sol-cov): make @types/solidity-parser-antlr a 'dependency' so it's available to users of the library
  fix(dev-utils): make web3-provider-engine types a 'dependency' so it's available to users of the library
  fix(0x.js): make web3-provider-engine types a 'dependency' so it's available to users of the library
  fix(monorepo-scripts): Move the creation of the `.installation-test` directory OUTSIDE of the monorepo root, so that the installed packages can't reference the hoisted node_modules folder
  Remove ContractNotFound errors in contract-wrappers
  Update prettierignore
  Update website to use the new unsubscribeAll method in contract-wrappers
  In abi-gen-wrappers, ./wrappers -> ./src/generated-wrappers
  In contract-wrappers, remove setProvider and add unsubscribeAll method.
  take out explicit children definition in props
  Update json-schemas for contract-wrappers
  Add OrThrow suffix to getContractAddressesForNetwork
  remove unused import
  Update CHANGELOG.json for all changed packages
  Remove ContractAddresses from packages/types (mistake after rebase)
  ...

3 files changed, 19 insertions, 0 deletions

diff --git a/python-packages/order_utils/test/__init__.py b/python-packages/order_utils/test/__init__.py
new file mode 100644
index 000000000..ec5b114aa
--- /dev/null
+++ b/python-packages/order_utils/test/__init__.py
@@ -0,0 +1 @@
+"""Tests of zero_x.order_utils."""
diff --git a/python-packages/order_utils/test/test_doctest.py b/python-packages/order_utils/test/test_doctest.py
new file mode 100644
index 000000000..a0e61f84a
--- /dev/null
+++ b/python-packages/order_utils/test/test_doctest.py
@@ -0,0 +1,10 @@
+"""Exercise doctests for order_utils module."""
+
+from doctest import testmod
+from zero_ex.order_utils import signature_utils
+
+
+def test_doctest():
+    """Invoke doctest on the module."""
+    (failure_count, _) = testmod(signature_utils)
+    assert failure_count == 0
diff --git a/python-packages/order_utils/test/test_signature_utils.py b/python-packages/order_utils/test/test_signature_utils.py
new file mode 100644
index 000000000..7e830f9f8
--- /dev/null
+++ b/python-packages/order_utils/test/test_signature_utils.py
@@ -0,0 +1,8 @@
+"""Tests of 0x.order_utils.signature_utils.*."""
+
+from zero_ex.order_utils.signature_utils import ec_sign_order_hash
+
+
+def test_ec_sign_order_hash():
+    """Test the signing of order hashes."""
+    assert ec_sign_order_hash() == "stub return value"