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bazel/website: Add tests (#3371)
Signed-off-by: Ryan Northey <[email protected]> Co-authored-by: copilot-swe-agent[bot] <[email protected]>
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‎bazel/website/tests/BUILD‎

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load("@rules_pkg//pkg:mappings.bzl", "pkg_filegroup", "pkg_files")
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load("@rules_shell//shell:sh_test.bzl", "sh_test")
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load("//website:macros.bzl", "static_website", "website_theme")
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# Test content files
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pkg_files(
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name = "test_content_files",
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srcs = glob(["test_content/**/*.md"]),
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strip_prefix = "test_content",
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prefix = "content",
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)
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pkg_filegroup(
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name = "test_content",
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srcs = [":test_content_files"],
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)
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# Test theme files
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pkg_files(
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name = "test_theme_templates",
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srcs = glob(["test_theme/templates/**/*.html"]),
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strip_prefix = "test_theme",
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prefix = "theme",
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)
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pkg_filegroup(
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name = "test_theme",
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srcs = [":test_theme_templates"],
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)
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# Test configuration
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exports_files(["test_config.py"])
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# Test: Basic website generation with default Pelican generator
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static_website(
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name = "test_basic_website",
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content = ":test_content",
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theme = ":test_theme",
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config = ":test_config.py",
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content_path = "content",
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output_path = "output",
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data = None, # No additional data files needed for this test
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mappings = {}, # Empty mappings for minimal test
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# Use default generator (Pelican)
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)
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# Shell test to verify the website was generated correctly
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sh_test(
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name = "website_generation_test",
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size = "small",
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srcs = ["run_website_tests.sh"],
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data = [
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":test_basic_website",
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],
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deps = [
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"@bazel_tools//tools/bash/runfiles",
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],
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)
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# Test: Website generation with custom exclude patterns
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static_website(
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name = "test_custom_exclude",
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content = ":test_content",
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theme = ":test_theme",
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config = ":test_config.py",
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content_path = "content",
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output_path = "output",
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data = None,
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mappings = {}, # Empty mappings for minimal test
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exclude = [
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# Custom exclude patterns (less than default)
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"theme/.webassets-cache",
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],
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)
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# Test: Website generation with custom mappings
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static_website(
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name = "test_custom_mappings",
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content = ":test_content",
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theme = ":test_theme",
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config = ":test_config.py",
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content_path = "content",
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output_path = "output",
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data = None,
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exclude = [], # Empty excludes for this test
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mappings = {}, # Empty mappings to test flexibility
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)
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# Shell test for parameterized tests
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sh_test(
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name = "website_parameterized_test",
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size = "small",
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srcs = ["run_parameterized_tests.sh"],
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data = [
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":test_custom_exclude",
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":test_custom_mappings",
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],
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deps = [
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"@bazel_tools//tools/bash/runfiles",
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],
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)

‎bazel/website/tests/README.md‎

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# Bazel Website Builder - Testing and Generator Agnostic Design
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## Overview
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The website builder in `bazel/website/` provides Bazel rules for building static websites. The design intends to be generator-agnostic, allowing different static site generators (not just Pelican) to be used.
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## Current State of Generator-Agnostic Design
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### What Works Well (Already Generator-Agnostic)
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1. **Generator Parameter**: The `static_website()` macro accepts a `generator` parameter that can point to any Bazel target that acts as a site generator.
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```starlark
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generator = "@envoy_toolshed//website/tools/pelican" # Default, but customizable
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```
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2. **Simple Generator Interface**: The generator is invoked with just the content path as an argument:
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```bash
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$GENERATOR "$CONTENT"
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```
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This simple interface makes it easy for different generators to work.
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3. **Customizable Parameters**: Key parameters can be customized per-site:
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- `exclude`: List of patterns to exclude from final tarball
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- `mappings`: Dictionary of source to destination path mappings
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- `output_path`: Where the generator outputs files
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- `content_path`: Where content files are located
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### Areas That Need Improvement for Full Generator Agnostic Support
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1. **Default Exclude Patterns**: The default `exclude` list contains Pelican-specific patterns:
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```starlark
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exclude = [
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"archives.html", # Pelican-specific
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"authors.html", # Pelican-specific
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"categories.html", # Pelican-specific
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"external",
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"tags.html", # Pelican-specific
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"pages", # Pelican-specific
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"theme/.webassets-cache",
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"theme/css/_sass",
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"theme/css/main.scss",
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]
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```
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**Recommendation**: These should either be:
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- Moved to a Pelican-specific wrapper function
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- Made conditional based on the generator
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- Or just documented that users should override them when using other generators
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2. **Default Mappings**: The default `mappings` assume Pelican's theme structure:
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```starlark
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mappings = {
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"theme/css": "theme/static/css",
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"theme/js": "theme/static/js",
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"theme/images": "theme/static/images",
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"theme/templates/extra": "theme/templates",
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}
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```
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**Recommendation**: Same as above - either make generator-specific wrappers or document override expectations.
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## Testing
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Tests are located in `bazel/website/tests/` and verify:
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1. **Basic Website Generation**: Tests that the macro can build a complete website tarball
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2. **Custom Exclude Patterns**: Tests that custom exclude patterns work
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3. **Custom Mappings**: Tests that custom (or empty) mappings work
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4. **Generator Flexibility**: Tests verify the macro compiles with different parameter combinations
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### Running Tests
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```bash
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cd bazel
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bazel test //website/tests/...
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```
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### Test Structure
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- `tests/test_content/`: Minimal markdown content for test websites
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- `tests/test_theme/`: Minimal Pelican theme templates
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- `tests/test_config.py`: Minimal Pelican configuration
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- `tests/BUILD`: Test targets using the website macros
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- `tests/run_website_tests.sh`: Basic functionality tests
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- `tests/run_parameterized_tests.sh`: Parameter flexibility tests
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## Recommendations for Future Iterations
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1. **Create Generator-Specific Wrappers**:
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```starlark
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def pelican_website(**kwargs):
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# Set Pelican-specific defaults
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static_website(
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exclude = ["archives.html", "authors.html", ...],
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mappings = {"theme/css": "theme/static/css", ...},
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**kwargs
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)
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```
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2. **Document Generator Requirements**: Create clear documentation about what a generator must do:
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- Accept content path as first argument
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- Output to the specified output path
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- Handle config files passed via the sources tarball
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3. **Add More Generator Examples**: Once the interface is stable, add examples with other generators (Hugo, Jekyll, etc.) to verify true generator-agnostic design.
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4. **Consider Environment Variables**: Some generators may need environment variables (like SITEURL in Pelican). The current design handles this, but it could be more explicit in documentation.

‎bazel/website/tests/run_parameterized_tests.sh‎

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#!/bin/bash
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set -euo pipefail
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# Test script for parameterized website generation tests
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# Tests custom configurations and generator-agnostic features
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echo "======================================="
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echo "Running Parameterized Website Tests"
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echo "======================================="
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# Handle Bazel runfiles
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if [ -n "${TEST_SRCDIR:-}" ]; then
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if [ -d "${TEST_SRCDIR}/envoy_toolshed" ]; then
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RUNFILES_DIR="${TEST_SRCDIR}/envoy_toolshed"
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else
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RUNFILES_DIR="${TEST_SRCDIR}/_main"
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fi
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else
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echo "ERROR: TEST_SRCDIR not set. This script must be run under Bazel test."
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exit 1
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fi
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TEST_DIR="${RUNFILES_DIR}/website/tests"
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failed=0
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# Test custom exclude patterns
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echo ""
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echo "Test 1: Custom exclude patterns"
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TARBALL="${TEST_DIR}/test_custom_exclude_html.tar.gz"
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if [ ! -f "${TARBALL}" ]; then
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echo "✗ FAILED: Custom exclude tarball not found"
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failed=$((failed + 1))
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else
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EXTRACT_DIR=$(mktemp -d)
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trap 'rm -rf ${EXTRACT_DIR}' EXIT
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if tar -xzf "${TARBALL}" -C "${EXTRACT_DIR}" 2>&1; then
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echo "✓ PASSED: Custom exclude tarball extracted"
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# Verify that fewer items are excluded
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# Note: This is a basic check - actual verification would depend on
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# knowing what the generator produces
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echo " Checking extracted contents..."
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file_count=$(find "${EXTRACT_DIR}" -type f | wc -l)
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echo " Found ${file_count} files"
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if [ "${file_count}" -gt 0 ]; then
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echo "✓ PASSED: Files exist in custom exclude output"
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else
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echo "✗ FAILED: No files in custom exclude output"
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failed=$((failed + 1))
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fi
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else
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echo "✗ FAILED: Could not extract custom exclude tarball"
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failed=$((failed + 1))
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fi
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fi
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# Test custom mappings
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echo ""
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echo "Test 2: Custom mappings"
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TARBALL="${TEST_DIR}/test_custom_mappings_html.tar.gz"
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if [ ! -f "${TARBALL}" ]; then
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echo "✗ FAILED: Custom mappings tarball not found"
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failed=$((failed + 1))
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else
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EXTRACT_DIR=$(mktemp -d)
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if tar -xzf "${TARBALL}" -C "${EXTRACT_DIR}" 2>&1; then
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echo "✓ PASSED: Custom mappings tarball extracted"
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# Check that output was generated
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file_count=$(find "${EXTRACT_DIR}" -type f | wc -l)
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echo " Found ${file_count} files"
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if [ "${file_count}" -gt 0 ]; then
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echo "✓ PASSED: Files exist in custom mappings output"
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else
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echo "✗ FAILED: No files in custom mappings output"
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failed=$((failed + 1))
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fi
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else
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echo "✗ FAILED: Could not extract custom mappings tarball"
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failed=$((failed + 1))
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fi
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fi
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# Test generator agnostic interface
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echo ""
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echo "Test 3: Generator-agnostic interface verification"
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echo "Checking that macro accepts generator parameter..."
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# This is verified by successful compilation of the BUILD file
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echo "✓ PASSED: BUILD file compiles with custom parameters"
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echo ""
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echo "======================================="
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if [ $failed -eq 0 ]; then
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echo "All parameterized tests PASSED ✓"
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exit 0
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else
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echo "${failed} parameterized test(s) FAILED ✗"
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exit 1
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fi

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