| /* |
| * Copyright 2023 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.text2 |
| |
| import androidx.compose.foundation.ExperimentalFoundationApi |
| import androidx.compose.foundation.text.selection.fetchTextLayoutResult |
| import androidx.compose.foundation.text2.input.CodepointTransformation |
| import androidx.compose.foundation.text2.input.TextFieldState |
| import androidx.compose.foundation.text2.input.mask |
| import androidx.compose.foundation.text2.input.setTextAndPlaceCursorAtEnd |
| import androidx.compose.runtime.getValue |
| import androidx.compose.runtime.mutableStateOf |
| import androidx.compose.runtime.setValue |
| import androidx.compose.ui.Modifier |
| import androidx.compose.ui.platform.testTag |
| import androidx.compose.ui.test.junit4.createComposeRule |
| import androidx.compose.ui.test.onNodeWithTag |
| import androidx.compose.ui.test.performTextInput |
| import androidx.test.ext.junit.runners.AndroidJUnit4 |
| import androidx.test.filters.MediumTest |
| import com.google.common.truth.Truth.assertThat |
| import org.junit.Rule |
| import org.junit.Test |
| import org.junit.runner.RunWith |
| |
| @OptIn(ExperimentalFoundationApi::class) |
| @MediumTest |
| @RunWith(AndroidJUnit4::class) |
| class TextFieldCodepointTransformationTest { |
| |
| @get:Rule |
| val rule = createComposeRule() |
| |
| private val Tag = "BasicTextField2" |
| |
| @Test |
| fun textField_rendersTheResultOf_codepointTransformation() { |
| val state = TextFieldState() |
| state.setTextAndPlaceCursorAtEnd("Hello") |
| rule.setContent { |
| BasicTextField2( |
| state = state, |
| codepointTransformation = { _, codepoint -> codepoint + 1 }, |
| modifier = Modifier.testTag(Tag) |
| ) |
| } |
| |
| assertLayoutText("Ifmmp") // one character after in lexical order |
| } |
| |
| @Test |
| fun textField_rendersTheResultOf_codepointTransformation_codepointIndex() { |
| val state = TextFieldState() |
| state.setTextAndPlaceCursorAtEnd("Hello") |
| rule.setContent { |
| BasicTextField2( |
| state = state, |
| codepointTransformation = { index, codepoint -> |
| if (index % 2 == 0) codepoint + 1 else codepoint - 1 |
| }, |
| modifier = Modifier.testTag(Tag) |
| ) |
| } |
| |
| assertLayoutText("Idmkp") // one character after and before in lexical order |
| } |
| |
| @Test |
| fun textField_toggleCodepointTransformation_affectsNextFrame() { |
| rule.mainClock.autoAdvance = false |
| val state = TextFieldState() |
| state.setTextAndPlaceCursorAtEnd("Hello") |
| var codepointTransformation by mutableStateOf(CodepointTransformation.None) |
| rule.setContent { |
| BasicTextField2( |
| state = state, |
| codepointTransformation = codepointTransformation, |
| modifier = Modifier.testTag(Tag) |
| ) |
| } |
| |
| assertLayoutText("Hello") // no change |
| codepointTransformation = CodepointTransformation.mask('c') |
| |
| rule.mainClock.advanceTimeByFrame() |
| assertLayoutText("ccccc") // all characters turn to c |
| } |
| |
| @Test |
| fun textField_statefulCodepointTransformation_reactsToStateChange() { |
| val state = TextFieldState() |
| state.setTextAndPlaceCursorAtEnd("Hello") |
| var mask by mutableStateOf('-') |
| rule.setContent { |
| BasicTextField2( |
| state = state, |
| codepointTransformation = CodepointTransformation.mask(mask), |
| modifier = Modifier.testTag(Tag) |
| ) |
| } |
| |
| assertLayoutText("-----") |
| mask = '@' |
| |
| rule.waitForIdle() |
| assertLayoutText("@@@@@") |
| } |
| |
| @Test |
| fun textField_removingCodepointTransformation_rendersTextNormally() { |
| val state = TextFieldState() |
| state.setTextAndPlaceCursorAtEnd("Hello") |
| var codepointTransformation by mutableStateOf<CodepointTransformation?>( |
| CodepointTransformation.mask('*') |
| ) |
| rule.setContent { |
| BasicTextField2( |
| state = state, |
| codepointTransformation = codepointTransformation, |
| modifier = Modifier.testTag(Tag) |
| ) |
| } |
| |
| assertLayoutText("*****") |
| codepointTransformation = null |
| |
| rule.waitForIdle() |
| assertLayoutText("Hello") |
| } |
| |
| @Test |
| fun textField_codepointTransformation_continuesToRenderUpdatedText() { |
| val state = TextFieldState() |
| state.setTextAndPlaceCursorAtEnd("Hello") |
| rule.setContent { |
| BasicTextField2( |
| state = state, |
| codepointTransformation = CodepointTransformation.mask('*'), |
| modifier = Modifier.testTag(Tag) |
| ) |
| } |
| |
| assertLayoutText("*****") |
| rule.waitForIdle() |
| rule.onNodeWithTag(Tag).performTextInput(", World!") |
| assertLayoutText("*".repeat("Hello, World!".length)) |
| } |
| |
| // TODO: add more tests when selection is added |
| |
| private fun assertLayoutText(text: String) { |
| assertThat(rule.onNodeWithTag(Tag).fetchTextLayoutResult().layoutInput.text.text) |
| .isEqualTo(text) |
| } |
| } |
