Merge pull request #3414 from plotly/feature/dcc-refactor-slider

dcc: refactor slider

Author: KoolADE85

.circleci/config.yml

@@ -5,7 +5,6 @@ orbs:
   percy: percy/agent@0.1.3
   browser-tools: circleci/browser-tools@1.5.1
 
-
 jobs:
   artifacts:
     docker:
@@ -158,8 +157,8 @@ jobs:
             python -m venv venv && . venv/Scripts/activate
             pip install --no-cache-dir --upgrade -e .[ci,dev] --progress-bar off
       - run:
-           command: |
-             nvm install 18 && nvm use 18
+          command: |
+            nvm install 18 && nvm use 18
       - run:
           name: npm prereqs
           command: |
@@ -318,6 +317,8 @@ jobs:
           command: |
             . venv/bin/activate && rm -rf components/dash-core-components/dash_core_components
             cd components/dash-core-components
+            npm ci
+            npm run test:jest
             TESTFILES=$(circleci tests glob "tests/integration/**/test_*.py" | circleci tests split --split-by=timings)
             pytest --headless --nopercyfinalize --junitxml=test-reports/junit_intg.xml --junitprefix="components.dash-core-components" ${TESTFILES}
       - store_artifacts:

.envrc

@@ -0,0 +1,8 @@
+# Check for common virtual environment directories from .gitignore patterns
+# and automatically activate one with direnv, if available.
+for venv_dir in .venv .env venv env .venv* env* ENV; do
+    if [ -d "$venv_dir" ] && [ -f "$venv_dir/bin/activate" ]; then
+        source "$venv_dir/bin/activate"
+        break
+    fi
+done

components/dash-core-components/jest.config.js

@@ -0,0 +1,14 @@
+module.exports = {
+    preset: 'ts-jest',
+    testEnvironment: 'node',
+    roots: ['<rootDir>/tests'],
+    testMatch: ['**/__tests__/**/*.ts', '**/?(*.)+(spec|test).ts'],
+    transform: {
+        '^.+\\.ts$': 'ts-jest',
+    },
+    collectCoverageFrom: ['src/**/*.{ts,tsx}', '!src/**/*.d.ts'],
+    moduleNameMapper: {
+        '^@/(.*)$': '<rootDir>/src/$1',
+    },
+    setupFilesAfterEnv: ['<rootDir>/jest.setup.js'],
+};

components/dash-core-components/jest.setup.js

@@ -0,0 +1,2 @@
+// Jest setup file
+// This file is loaded before every test file