import { moduleForComponent, test } from 'ember-qunit';

/**
 * Renders component with default and optional props.
 *
 * @param context The test context
 * @param options Additional props
 */
function renderWithDefaults(context, options = {}) {
  const defaults = { foo: 'Hi from foo', bar: 'Hi from bar' };
  const props = Object.assign(defaults, options);
  
  context.setProperties(props);
  
  const attrs = Object.keys(props).reduce((acc, key) => {
    return `${acc} ${key}=${key}`;
  }, '');
  
  const componentDef = `{{my-component ${attrs}}}`;
  
  // Error: placeholders inside a tagged template string are not supported
  // context.render(hbs`${componentDef}`);
  context.render(componentDef);
}

moduleForComponent('my-component', 'Integration | Component | my-component', {
  integration: true
});

// Test with only default props
test('it shows foo', function(assert) {
  renderWithDefaults(this);
  assert.equal(this.$('.foo').text().trim(), 'Hi from foo');
});

// Test with some default props overriden
test('it shows bar', function(assert) {
  renderWithDefaults(this, { bar: 'Hi from the bar' });
  assert.equal(this.$('.bar').text().trim(), 'Hi from the bar');
});

// Test with optional props
test('it shows greeting', function(assert) {
  renderWithDefaults(this, {
    name: 'Alice',
    greeting: 'Hello',
  });
  
  assert.equal(this.$('.greeting').text().trim(), 'Hello Alice.');
});

// Test with optional prop
test('it shows number', function(assert) {
  renderWithDefaults(this, { number: 3 });
  assert.equal(this.$('.number').text().trim(), 'Your number is 3');
});