test(NODE-3187): port unified test runner (#2783)

Adds typescript compilation for unified runner.
Modified package scripts to align with 4.0 branch.
CI steps needed to compile the runner.
Fixes to bulk result to conform to spec.

.eslintignore

@@ -0,0 +1,3 @@
+test/functional/unified-spec-runner/*.js
+!test/functional/unified-spec-runner/unified-runner.test.js
+docs

.evergreen/install-dependencies.sh

@@ -75,6 +75,7 @@ if [[ "$OS" == "Windows_NT" ]]; then
 root: $NVM_HOME
 path: $NVM_SYMLINK
 EOT
+  nvm install 12
   nvm install $NODE_VERSION
   nvm use $NODE_VERSION
   which node || echo "node not found, PATH=$PATH"
@@ -86,7 +87,9 @@ EOT
 else
   curl -o- $NVM_URL | bash
   [ -s "${NVM_DIR}/nvm.sh" ] && \. "${NVM_DIR}/nvm.sh"
+  nvm install --no-progress 12
   nvm install --no-progress $NODE_VERSION
+  nvm use $NODE_VERSION
 
   # setup npm cache in a local directory
   cat <<EOT > .npmrc

.evergreen/run-atlas-tests.sh

@@ -7,4 +7,4 @@ NODE_ARTIFACTS_PATH="${PROJECT_DIRECTORY}/node-artifacts"
 export NVM_DIR="${NODE_ARTIFACTS_PATH}/nvm"
 [ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"
 
-npm run atlas
+npm run check:atlas

.evergreen/run-checks.sh

@@ -6,4 +6,4 @@ NODE_ARTIFACTS_PATH="${PROJECT_DIRECTORY}/node-artifacts"
 export NVM_DIR="${NODE_ARTIFACTS_PATH}/nvm"
 [ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"
 
-npm run lint
+npm run check:lint

.evergreen/run-tests.sh

@@ -8,14 +8,14 @@ set -o errexit  # Exit the script with error if any of the commands fail
 #       UNIFIED                 Set to enable the Unified SDAM topology for the node driver
 #       MONGODB_URI             Set the suggested connection MONGODB_URI (including credentials and topology info)
 #       MARCH                   Machine Architecture. Defaults to lowercase uname -m
-#       TEST_NPM_SCRIPT         Script to npm run. Defaults to "test-nolint"
+#       TEST_NPM_SCRIPT         Script to npm run. Defaults to "check:test"
 #       SKIP_DEPS               Skip installing dependencies
 #       NO_EXIT                 Don't exit early from tests that leak resources
 
 AUTH=${AUTH:-noauth}
 UNIFIED=${UNIFIED:-0}
 MONGODB_URI=${MONGODB_URI:-}
-TEST_NPM_SCRIPT=${TEST_NPM_SCRIPT:-test-nolint}
+TEST_NPM_SCRIPT=${TEST_NPM_SCRIPT:-"check:test"}
 if [[ -z "${NO_EXIT}" ]]; then
   TEST_NPM_SCRIPT="$TEST_NPM_SCRIPT -- --exit"
 fi
@@ -55,4 +55,8 @@ else
   npm install mongodb-client-encryption@latest
 fi
 
+nvm use 12
+npm run build:unified
+nvm use "$NODE_VERSION"
+
 MONGODB_UNIFIED_TOPOLOGY=${UNIFIED} MONGODB_URI=${MONGODB_URI} npm run ${TEST_NPM_SCRIPT}

.gitignore

@@ -52,3 +52,7 @@ yarn.lock
 
 .vscode
 output
+
+# Unified Runner
+test/functional/unified-spec-runner/*.js
+!test/functional/unified-spec-runner/unified-runner.test.js

lib/bulk/common.js

@@ -71,6 +71,45 @@ class BulkWriteResult {
     this.result = bulkResult;
   }
 
+  /** Number of documents inserted. */
+  get insertedCount() {
+    return typeof this.result.nInserted !== 'number' ? 0 : this.result.nInserted;
+  }
+  /** Number of documents matched for update. */
+  get matchedCount() {
+    return typeof this.result.nMatched !== 'number' ? 0 : this.result.nMatched;
+  }
+  /** Number of documents modified. */
+  get modifiedCount() {
+    return typeof this.result.nModified !== 'number' ? 0 : this.result.nModified;
+  }
+  /** Number of documents deleted. */
+  get deletedCount() {
+    return typeof this.result.nRemoved !== 'number' ? 0 : this.result.nRemoved;
+  }
+  /** Number of documents upserted. */
+  get upsertedCount() {
+    return !this.result.upserted ? 0 : this.result.upserted.length;
+  }
+
+  /** Upserted document generated Id's, hash key is the index of the originating operation */
+  get upsertedIds() {
+    const upserted = {};
+    for (const doc of !this.result.upserted ? [] : this.result.upserted) {
+      upserted[doc.index] = doc._id;
+    }
+    return upserted;
+  }
+
+  /** Inserted document generated Id's, hash key is the index of the originating operation */
+  get insertedIds() {
+    const inserted = {};
+    for (const doc of !this.result.insertedIds ? [] : this.result.insertedIds) {
+      inserted[doc.index] = doc._id;
+    }
+    return inserted;
+  }
+
   /**
    * Evaluates to true if the bulk operation correctly executes
    * @type {boolean}
@@ -572,6 +611,35 @@ class BulkWriteError extends MongoError {
     this.name = 'BulkWriteError';
     this.result = result;
   }
+
+  /** Number of documents inserted. */
+  get insertedCount() {
+    return this.result.insertedCount;
+  }
+  /** Number of documents matched for update. */
+  get matchedCount() {
+    return this.result.matchedCount;
+  }
+  /** Number of documents modified. */
+  get modifiedCount() {
+    return this.result.modifiedCount;
+  }
+  /** Number of documents deleted. */
+  get deletedCount() {
+    return this.result.deletedCount;
+  }
+  /** Number of documents upserted. */
+  get upsertedCount() {
+    return this.result.upsertedCount;
+  }
+  /** Inserted document generated Id's, hash key is the index of the originating operation */
+  get insertedIds() {
+    return this.result.insertedIds;
+  }
+  /** Upserted document generated Id's, hash key is the index of the originating operation */
+  get upsertedIds() {
+    return this.result.upsertedIds;
+  }
 }
 
 /**