Espresso (Hamcrest) matcher to match TextView text but ignoreCase

README.md

Let's say you have this code:

textview.setText("This Is Camel Case");

And you want to interact with it in an Espresso test:

import static android.support.test.espresso.matcher.ViewMatchers.withText;

onView(withText("this is camel case"))
  .check(matches(isDisplayed()));

This view would fail the matcher because of the capital letters. But using this matcher will be fine:

import static com.example.app.IgnoreCaseTextMatcher.withText;

onView(withText("this is camel case"))
  .check(matches(isDisplayed()));

IgnoreCaseTextMatcher.java

package com.example.app;

import android.support.test.espresso.matcher.BoundedMatcher;
import android.view.View;
import android.widget.TextView;

import org.hamcrest.Description;
import org.hamcrest.Matcher;

import static com.google.common.base.Preconditions.checkNotNull;
import static org.hamcrest.Matchers.is;

public class IgnoreCaseTextMatcher {
    /**
     * Returns a matcher that matches {@link TextView} based on its text property value BUT IGNORES CASE.
     * Note: View's Sugar for withText(is("string")).
     *
     * @param text {@link String} with the text to match
     */
    public static Matcher<View> withText(String text) {
        return withText(is(text.toLowerCase()));
    }

    private static Matcher<View> withText(final Matcher<String> stringMatcher) {
        checkNotNull(stringMatcher);
        return new BoundedMatcher<View, TextView>(TextView.class) {
            @Override
            public void describeTo(Description description) {
                description.appendText("with text (ignoring case): ");
                stringMatcher.describeTo(description);
            }

            @Override
            public boolean matchesSafely(TextView textView) {

                return stringMatcher.matches(textView.getText().toString().toLowerCase());
            }
        };
    }
}

what about situation when you are getting string from resource?

onView(withText(R.string.kb_change_maturity_details_cc))