diff --git a/core/profiles/testing_themes_blocks/config/install/system.theme.yml b/core/profiles/testing_themes_blocks/config/install/system.theme.yml
new file mode 100644
index 0000000000..0d1badf630
--- /dev/null
+++ b/core/profiles/testing_themes_blocks/config/install/system.theme.yml
@@ -0,0 +1,2 @@
+admin: testing_theme_optional_blocks
+default: testing_theme_required_blocks
diff --git a/core/profiles/testing_themes_blocks/testing_themes_blocks.info.yml b/core/profiles/testing_themes_blocks/testing_themes_blocks.info.yml
new file mode 100644
index 0000000000..4eae89d61a
--- /dev/null
+++ b/core/profiles/testing_themes_blocks/testing_themes_blocks.info.yml
@@ -0,0 +1,10 @@
+name: Testing themes blocks
+type: profile
+description: 'Minimal profile for testing block installation of themes.'
+version: VERSION
+hidden: true
+themes:
+  - testing_theme_optional_blocks
+  - testing_theme_required_blocks
+install:
+  - block
diff --git a/core/profiles/testing_themes_blocks/themes/testing_theme_optional_blocks/config/optional/block.block.testing_theme_optional_blocks_page_title.yml b/core/profiles/testing_themes_blocks/themes/testing_theme_optional_blocks/config/optional/block.block.testing_theme_optional_blocks_page_title.yml
new file mode 100644
index 0000000000..9377cb4721
--- /dev/null
+++ b/core/profiles/testing_themes_blocks/themes/testing_theme_optional_blocks/config/optional/block.block.testing_theme_optional_blocks_page_title.yml
@@ -0,0 +1,17 @@
+langcode: en
+status: true
+dependencies:
+  theme:
+    - testing_theme_optional_blocks
+id: testing_theme_optional_blocks_page_title
+theme: testing_theme_optional_blocks
+region: header
+weight: -30
+provider: null
+plugin: page_title_block
+settings:
+  id: page_title_block
+  label: 'Page title'
+  provider: core
+  label_display: '0'
+visibility: {  }
diff --git a/core/profiles/testing_themes_blocks/themes/testing_theme_optional_blocks/testing_theme_optional_blocks.info.yml b/core/profiles/testing_themes_blocks/themes/testing_theme_optional_blocks/testing_theme_optional_blocks.info.yml
new file mode 100644
index 0000000000..1a37158f51
--- /dev/null
+++ b/core/profiles/testing_themes_blocks/themes/testing_theme_optional_blocks/testing_theme_optional_blocks.info.yml
@@ -0,0 +1,16 @@
+name: Testing theme with optional blocks
+type: theme
+base theme: false
+package: Testing
+version: VERSION
+regions:
+  header: 'Header'
+  pre_content: 'Pre-content'
+  breadcrumb: Breadcrumb
+  highlighted: Highlighted
+  help: Help
+  content: Content
+  page_top: 'Page top'
+  page_bottom: 'Page bottom'
+  sidebar_first: 'First sidebar'
+
diff --git a/core/profiles/testing_themes_blocks/themes/testing_theme_required_blocks/config/install/block.block.testing_theme_required_blocks_account_menu.yml b/core/profiles/testing_themes_blocks/themes/testing_theme_required_blocks/config/install/block.block.testing_theme_required_blocks_account_menu.yml
new file mode 100644
index 0000000000..83aca4cb98
--- /dev/null
+++ b/core/profiles/testing_themes_blocks/themes/testing_theme_required_blocks/config/install/block.block.testing_theme_required_blocks_account_menu.yml
@@ -0,0 +1,20 @@
+langcode: en
+status: true
+dependencies:
+  theme:
+    - testing_theme_required_blocks
+id: testing_theme_required_blocks_account_menu
+theme: testing_theme_required_blocks
+region: secondary_menu
+weight: -4
+provider: null
+plugin: system_menu_block:account
+settings:
+  id: system_menu_block:account
+  label: 'User account menu'
+  provider: system
+  label_display: '0'
+  level: 1
+  depth: 1
+  expand_all_items: false
+visibility: {  }
diff --git a/core/profiles/testing_themes_blocks/themes/testing_theme_required_blocks/testing_theme_required_blocks.info.yml b/core/profiles/testing_themes_blocks/themes/testing_theme_required_blocks/testing_theme_required_blocks.info.yml
new file mode 100644
index 0000000000..7392a69ab3
--- /dev/null
+++ b/core/profiles/testing_themes_blocks/themes/testing_theme_required_blocks/testing_theme_required_blocks.info.yml
@@ -0,0 +1,16 @@
+name: Testing theme with required blocks
+type: theme
+base theme: false
+package: Testing
+version: VERSION
+regions:
+  header: 'Header'
+  pre_content: 'Pre-content'
+  breadcrumb: Breadcrumb
+  highlighted: Highlighted
+  help: Help
+  content: Content
+  page_top: 'Page top'
+  page_bottom: 'Page bottom'
+  sidebar_first: 'First sidebar'
+
diff --git a/core/tests/Drupal/FunctionalTests/Installer/InstallerThemesBlocksProfileTest.php b/core/tests/Drupal/FunctionalTests/Installer/InstallerThemesBlocksProfileTest.php
new file mode 100644
index 0000000000..f415cadf01
--- /dev/null
+++ b/core/tests/Drupal/FunctionalTests/Installer/InstallerThemesBlocksProfileTest.php
@@ -0,0 +1,36 @@
+<?php
+
+namespace Drupal\FunctionalTests\Installer;
+
+use Drupal\block\Entity\Block;
+
+/**
+ * Verifies that the installer does not generate theme blocks.
+ *
+ * @group Installer
+ */
+class InstallerThemesBlocksProfileTest extends InstallerTestBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  protected $defaultTheme = 'testing_theme_required_blocks';
+
+  /**
+   * {@inheritdoc}
+   */
+  protected $profile = 'testing_themes_blocks';
+
+  /**
+   * Verify that there is no automatic block generation.
+   */
+  public function testInstaller() {
+
+    // Account menu is a block that testing_theme_required_blocks provides,
+    // but not testing_theme_optional_blocks. There shouldn't be a account menu
+    // block for testing_theme_optional_blocks after the installation.
+    $this->assertEmpty(Block::load('testing_theme_optional_blocks_account_menu'));
+    $this->assertNotEmpty(Block::load('testing_theme_optional_blocks_page_title'));
+  }
+
+}