| /* |
| * Copyright 2019 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package androidx.compose.foundation |
| |
| import androidx.compose.ui.text.TextLayoutResult |
| import androidx.compose.ui.text.TextStyle |
| import androidx.compose.ui.text.font.FontStyle |
| import androidx.compose.ui.text.style.TextAlign |
| import androidx.test.filters.MediumTest |
| import androidx.ui.core.Modifier |
| import androidx.ui.core.testTag |
| import androidx.ui.graphics.Color |
| import androidx.ui.semantics.SemanticsActions |
| import androidx.ui.test.assertTextEquals |
| import androidx.ui.test.createComposeRule |
| import androidx.ui.test.onNodeWithTag |
| import androidx.ui.test.performSemanticsAction |
| import androidx.ui.test.runOnIdle |
| import androidx.ui.unit.TextUnit |
| import androidx.ui.unit.em |
| import androidx.ui.unit.sp |
| import com.google.common.truth.Truth |
| import org.junit.Rule |
| import org.junit.Test |
| import org.junit.runner.RunWith |
| import org.junit.runners.JUnit4 |
| |
| @MediumTest |
| @RunWith(JUnit4::class) |
| class TextTest { |
| |
| @get:Rule |
| val composeTestRule = createComposeRule() |
| |
| private val ExpectedTextStyle = TextStyle( |
| color = Color.Blue, |
| textAlign = TextAlign.End, |
| fontSize = 32.sp, |
| fontStyle = FontStyle.Italic, |
| letterSpacing = 0.3.em |
| ) |
| |
| private val TestText = "TestText" |
| |
| @Test |
| fun inheritsCurrentTextStyle() { |
| var textColor: Color? = null |
| var textAlign: TextAlign? = null |
| var fontSize: TextUnit? = null |
| var fontStyle: FontStyle? = null |
| var letterSpacing: TextUnit? = null |
| composeTestRule.setContent { |
| ProvideTextStyle(ExpectedTextStyle) { |
| Box(backgroundColor = Color.White) { |
| Text( |
| TestText, |
| onTextLayout = { |
| textColor = it.layoutInput.style.color |
| textAlign = it.layoutInput.style.textAlign |
| fontSize = it.layoutInput.style.fontSize |
| fontStyle = it.layoutInput.style.fontStyle |
| letterSpacing = it.layoutInput.style.letterSpacing |
| } |
| ) |
| } |
| } |
| } |
| |
| runOnIdle { |
| Truth.assertThat(textColor).isEqualTo(ExpectedTextStyle.color) |
| Truth.assertThat(textAlign).isEqualTo(ExpectedTextStyle.textAlign) |
| Truth.assertThat(fontSize).isEqualTo(ExpectedTextStyle.fontSize) |
| Truth.assertThat(fontStyle).isEqualTo(ExpectedTextStyle.fontStyle) |
| Truth.assertThat(letterSpacing).isEqualTo(ExpectedTextStyle.letterSpacing) |
| } |
| } |
| |
| @Test |
| fun settingCustomTextStyle() { |
| var textColor: Color? = null |
| var textAlign: TextAlign? = null |
| var fontSize: TextUnit? = null |
| var fontStyle: FontStyle? = null |
| var letterSpacing: TextUnit? = null |
| val testStyle = TextStyle( |
| color = Color.Green, |
| textAlign = TextAlign.Center, |
| fontSize = 16.sp, |
| fontStyle = FontStyle.Normal, |
| letterSpacing = 0.6.em |
| ) |
| composeTestRule.setContent { |
| ProvideTextStyle(ExpectedTextStyle) { |
| Box(backgroundColor = Color.White) { |
| Text( |
| TestText, |
| style = testStyle, |
| onTextLayout = { |
| textColor = it.layoutInput.style.color |
| textAlign = it.layoutInput.style.textAlign |
| fontSize = it.layoutInput.style.fontSize |
| fontStyle = it.layoutInput.style.fontStyle |
| letterSpacing = it.layoutInput.style.letterSpacing |
| } |
| ) |
| } |
| } |
| } |
| |
| runOnIdle { |
| Truth.assertThat(textColor).isEqualTo(testStyle.color) |
| Truth.assertThat(textAlign).isEqualTo(testStyle.textAlign) |
| Truth.assertThat(fontSize).isEqualTo(testStyle.fontSize) |
| Truth.assertThat(fontStyle).isEqualTo(testStyle.fontStyle) |
| Truth.assertThat(letterSpacing).isEqualTo(testStyle.letterSpacing) |
| } |
| } |
| |
| @Test |
| fun settingParametersExplicitly() { |
| var textColor: Color? = null |
| var textAlign: TextAlign? = null |
| var fontSize: TextUnit? = null |
| var fontStyle: FontStyle? = null |
| var letterSpacing: TextUnit? = null |
| val expectedColor = Color.Green |
| val expectedTextAlign = TextAlign.Center |
| val expectedFontSize = 16.sp |
| val expectedFontStyle = FontStyle.Normal |
| val expectedLetterSpacing = 0.6.em |
| |
| composeTestRule.setContent { |
| ProvideTextStyle(ExpectedTextStyle) { |
| Box(backgroundColor = Color.White) { |
| Text( |
| TestText, |
| color = expectedColor, |
| textAlign = expectedTextAlign, |
| fontSize = expectedFontSize, |
| fontStyle = expectedFontStyle, |
| letterSpacing = expectedLetterSpacing, |
| onTextLayout = { |
| textColor = it.layoutInput.style.color |
| textAlign = it.layoutInput.style.textAlign |
| fontSize = it.layoutInput.style.fontSize |
| fontStyle = it.layoutInput.style.fontStyle |
| letterSpacing = it.layoutInput.style.letterSpacing |
| } |
| ) |
| } |
| } |
| } |
| |
| runOnIdle { |
| // explicit parameters should override values from the style. |
| Truth.assertThat(textColor).isEqualTo(expectedColor) |
| Truth.assertThat(textAlign).isEqualTo(expectedTextAlign) |
| Truth.assertThat(fontSize).isEqualTo(expectedFontSize) |
| Truth.assertThat(fontStyle).isEqualTo(expectedFontStyle) |
| Truth.assertThat(letterSpacing).isEqualTo(expectedLetterSpacing) |
| } |
| } |
| |
| // Not really an expected use-case, but we should ensure the behavior here is consistent. |
| @Test |
| fun settingColorAndTextStyle() { |
| var textColor: Color? = null |
| var textAlign: TextAlign? = null |
| var fontSize: TextUnit? = null |
| var fontStyle: FontStyle? = null |
| var letterSpacing: TextUnit? = null |
| val expectedColor = Color.Green |
| val expectedTextAlign = TextAlign.Center |
| val expectedFontSize = 16.sp |
| val expectedFontStyle = FontStyle.Normal |
| val expectedLetterSpacing = 0.6.em |
| composeTestRule.setContent { |
| ProvideTextStyle(ExpectedTextStyle) { |
| Box(backgroundColor = Color.White) { |
| // Set both color and style |
| Text( |
| TestText, |
| color = expectedColor, |
| textAlign = expectedTextAlign, |
| fontSize = expectedFontSize, |
| fontStyle = expectedFontStyle, |
| letterSpacing = expectedLetterSpacing, |
| style = ExpectedTextStyle, |
| onTextLayout = { |
| textColor = it.layoutInput.style.color |
| textAlign = it.layoutInput.style.textAlign |
| fontSize = it.layoutInput.style.fontSize |
| fontStyle = it.layoutInput.style.fontStyle |
| letterSpacing = it.layoutInput.style.letterSpacing |
| } |
| ) |
| } |
| } |
| } |
| |
| runOnIdle { |
| // explicit parameters should override values from the style. |
| Truth.assertThat(textColor).isEqualTo(expectedColor) |
| Truth.assertThat(textAlign).isEqualTo(expectedTextAlign) |
| Truth.assertThat(fontSize).isEqualTo(expectedFontSize) |
| Truth.assertThat(fontStyle).isEqualTo(expectedFontStyle) |
| Truth.assertThat(letterSpacing).isEqualTo(expectedLetterSpacing) |
| } |
| } |
| |
| @Test |
| fun testSemantics() { |
| composeTestRule.setContent { |
| ProvideTextStyle(ExpectedTextStyle) { |
| Box(backgroundColor = Color.White) { |
| Text( |
| TestText, |
| modifier = Modifier.testTag("text") |
| ) |
| } |
| } |
| } |
| |
| val textLayoutResults = mutableListOf<TextLayoutResult>() |
| onNodeWithTag("text") |
| .assertTextEquals(TestText) |
| .performSemanticsAction(SemanticsActions.GetTextLayoutResult) { it(textLayoutResults) } |
| assert(textLayoutResults.size == 1) { "TextLayoutResult is null" } |
| } |
| } |