Dynamic Path Segment Matching

[adellhk]

Given:

• Inject a mapOf("some-key" to "bar", "high-key" to "hyphy") into BaseDeepLinkDelegate.
• Annotate a class or Intent-returning method with @DeepLink("https://www.example.com/foo/%%%some-key%%%/baz") example
• Annotate another class or Intent-returning method with @DeepLink("https://www.example.com/you/only/%%%some-key%%%/%%%high-key%%%")

Then:

• baseDeepLinkDelegate.supporstUri("https://www.example.com/foo/bar/baz") //true
• baseDeepLinkDelegate.supportsUri("https://www.example.com/foo/hyphy/baz") //false
• baseDeepLinkDelegate.supportsUri("https://www.example.com/you/only/bar/hyphy") //true

The motivation here is that users should be able to declare DeepLinks with a replaceable path segment (or segments) and then replace them at runtime (e.g. based on build type or a configuration flag).

This test covers the happy path of this change (other tests cover unhappy paths):

 public void testPlaceholderSubstitution() {
    Map<String, String> pathVariableReplacements = new HashMap<>();
    pathVariableReplacements.put("replaceable-path-variable", "obamaOs");
    DeepLinkDelegate deepLinkDelegate = new DeepLinkDelegate(new SampleModuleRegistry(),
      new LibraryDeepLinkModuleRegistry(), new BenchmarkDeepLinkModuleRegistry(), pathVariableReplacements);
    assertThat(deepLinkDelegate.supportsUri("https://www.example.com/capnMcCains/bar"), equalTo(false));
    assertThat(deepLinkDelegate.supportsUri("https://www.example.com/obamaOs/bar"), equalTo(true));
  }

./gradlew check test: