| /* |
| * 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.ui.text.input |
| |
| import androidx.test.filters.SmallTest |
| import androidx.compose.ui.text.TextRange |
| import org.junit.Assert.assertEquals |
| import org.junit.Assert.assertFalse |
| import org.junit.Assert.assertTrue |
| import org.junit.Test |
| import org.junit.runner.RunWith |
| import org.junit.runners.JUnit4 |
| |
| @SmallTest |
| @RunWith(JUnit4::class) |
| class SetComposingRegionEditOpTest { |
| |
| @Test |
| fun test_set() { |
| val eb = EditingBuffer("ABCDE", TextRange.Zero) |
| |
| SetComposingRegionEditOp(1, 4).process(eb) |
| |
| assertEquals("ABCDE", eb.toString()) |
| assertEquals(0, eb.cursor) |
| assertTrue(eb.hasComposition()) |
| assertEquals(1, eb.compositionStart) |
| assertEquals(4, eb.compositionEnd) |
| } |
| |
| @Test |
| fun test_preserve_ongoing_composition() { |
| val eb = EditingBuffer("ABCDE", TextRange.Zero) |
| |
| eb.setComposition(1, 3) |
| |
| SetComposingRegionEditOp(2, 4).process(eb) |
| |
| assertEquals("ABCDE", eb.toString()) |
| assertEquals(0, eb.cursor) |
| assertTrue(eb.hasComposition()) |
| assertEquals(2, eb.compositionStart) |
| assertEquals(4, eb.compositionEnd) |
| } |
| |
| @Test |
| fun test_preserve_selection() { |
| val eb = EditingBuffer("ABCDE", TextRange(1, 4)) |
| |
| SetComposingRegionEditOp(2, 4).process(eb) |
| |
| assertEquals("ABCDE", eb.toString()) |
| assertEquals(1, eb.selectionStart) |
| assertEquals(4, eb.selectionEnd) |
| assertTrue(eb.hasComposition()) |
| assertEquals(2, eb.compositionStart) |
| assertEquals(4, eb.compositionEnd) |
| } |
| |
| @Test |
| fun test_set_reversed() { |
| val eb = EditingBuffer("ABCDE", TextRange.Zero) |
| |
| SetComposingRegionEditOp(4, 1).process(eb) |
| |
| assertEquals("ABCDE", eb.toString()) |
| assertEquals(0, eb.cursor) |
| assertTrue(eb.hasComposition()) |
| assertEquals(1, eb.compositionStart) |
| assertEquals(4, eb.compositionEnd) |
| } |
| |
| @Test |
| fun test_set_too_small() { |
| val eb = EditingBuffer("ABCDE", TextRange.Zero) |
| |
| SetComposingRegionEditOp(-1000, -1000).process(eb) |
| |
| assertEquals("ABCDE", eb.toString()) |
| assertEquals(0, eb.cursor) |
| assertFalse(eb.hasComposition()) |
| } |
| |
| @Test |
| fun test_set_too_large() { |
| val eb = EditingBuffer("ABCDE", TextRange.Zero) |
| |
| SetComposingRegionEditOp(1000, 1000).process(eb) |
| |
| assertEquals("ABCDE", eb.toString()) |
| assertEquals(0, eb.cursor) |
| assertFalse(eb.hasComposition()) |
| } |
| |
| @Test |
| fun test_set_too_small_and_too_large() { |
| val eb = EditingBuffer("ABCDE", TextRange.Zero) |
| |
| SetComposingRegionEditOp(-1000, 1000).process(eb) |
| |
| assertEquals("ABCDE", eb.toString()) |
| assertEquals(0, eb.cursor) |
| assertTrue(eb.hasComposition()) |
| assertEquals(0, eb.compositionStart) |
| assertEquals(5, eb.compositionEnd) |
| } |
| |
| @Test |
| fun test_set_too_small_and_too_large_reversed() { |
| val eb = EditingBuffer("ABCDE", TextRange.Zero) |
| |
| SetComposingRegionEditOp(1000, -1000).process(eb) |
| |
| assertEquals("ABCDE", eb.toString()) |
| assertEquals(0, eb.cursor) |
| assertTrue(eb.hasComposition()) |
| assertEquals(0, eb.compositionStart) |
| assertEquals(5, eb.compositionEnd) |
| } |
| } |