如何在浓缩咖啡中获取文本视图的实际颜色值

Question

我正在尝试验证 android 应用中文本视图的颜色。

healthHistoryPage.allergies.check(匹配(hasTextColor(android.R.color.black))))

我收到一条错误消息：

android.support.test.espresso.base.DefaultFailureHandler$AssertionFailedWithCauseError: 'has color with ID 17170444' 与所选视图不匹配。

预期：具有 ID 为 android 的颜色：color/black

但是我在错误消息的任何地方都看不到实际颜色值是多少。如果我无法访问源代码，有没有办法获取实际颜色值。

Answer 1

看这里修改后的原版hasTextColor匹配器：https://android.googlesource.com/platform/frameworks/testing/+/android-support-test/espresso/core/src/main/java/android/support/test/espresso/matcher/ViewMatchers.java

public static Matcher<View> hasTextColor(final int colorResId) {
    return new BoundedMatcher<View, TextView>(TextView.class) {
        private Context context;

        @Override
        protected boolean matchesSafely(TextView textView) {
            context = textView.getContext();
            int textViewColor = textView.getCurrentTextColor();
            int expectedColor;

            if (Build.VERSION.SDK_INT <= 22) {
                expectedColor = context.getResources().getColor(colorResId);
            } else {
                expectedColor = context.getColor(colorResId);
            }

            return textViewColor == expectedColor;
        }

        @Override
        public void describeTo(Description description) {
            String colorId = String.valueOf(colorResId);
            String colorCode = "";
            if (context != null) {
                colorId = context.getResources().getResourceName(colorResId);

                //added get color hex code
                @ColorInt int colorInt = context.getResources().getColor(colorResId);
                colorCode = String.format("#%06X", (0xFFFFFF & colorInt));
            }
            description.appendText("has color with ID " + colorId);

            //added output color code in error msg
            description.appendText(" and color code: " +
                    colorCode);
        }
    };
}

注意：//added 注释修改了颜色十六进制代码

这将记录类似于以下内容的错误：

... Expected: has color with ID com.appham.sandbox:color/colorAccent and color code: #FF4081 ...

如何在浓缩咖啡中获取文本视图的实际颜色值

How to get actual color value of text view in espresso

testing

android

android-espresso