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| 1 | +// Copyright (c) Microsoft Corporation. All rights reserved. |
| 2 | +// Licensed under the MIT License. |
| 3 | +package com.azure.spring.cloud.appconfiguration.config.implementation.properties; |
| 4 | + |
| 5 | +import java.util.ArrayList; |
| 6 | +import java.util.Arrays; |
| 7 | +import java.util.List; |
| 8 | + |
| 9 | +import static org.junit.jupiter.api.Assertions.assertArrayEquals; |
| 10 | +import static org.junit.jupiter.api.Assertions.assertEquals; |
| 11 | +import static org.junit.jupiter.api.Assertions.assertThrows; |
| 12 | +import static org.junit.jupiter.api.Assertions.assertTrue; |
| 13 | +import org.junit.jupiter.api.BeforeEach; |
| 14 | +import org.junit.jupiter.api.Test; |
| 15 | + |
| 16 | +import static com.azure.spring.cloud.appconfiguration.config.implementation.AppConfigurationConstants.EMPTY_LABEL; |
| 17 | + |
| 18 | +public class AppConfigurationKeyValueSelectorTest { |
| 19 | + |
| 20 | + private AppConfigurationKeyValueSelector selector; |
| 21 | + |
| 22 | + @BeforeEach |
| 23 | + public void setup() { |
| 24 | + selector = new AppConfigurationKeyValueSelector(); |
| 25 | + } |
| 26 | + |
| 27 | + @Test |
| 28 | + public void getKeyFilterDefaultTest() { |
| 29 | + // When no key filter is set, should return default |
| 30 | + String keyFilter = selector.getKeyFilter(); |
| 31 | + assertEquals("/application/", keyFilter); |
| 32 | + } |
| 33 | + |
| 34 | + @Test |
| 35 | + public void getKeyFilterCustomTest() { |
| 36 | + // When custom key filter is set |
| 37 | + selector.setKeyFilter("/custom/"); |
| 38 | + String keyFilter = selector.getKeyFilter(); |
| 39 | + assertEquals("/custom/", keyFilter); |
| 40 | + } |
| 41 | + |
| 42 | + @Test |
| 43 | + public void getKeyFilterEmptyTest() { |
| 44 | + // When empty key filter is set, should return default |
| 45 | + selector.setKeyFilter(""); |
| 46 | + String keyFilter = selector.getKeyFilter(); |
| 47 | + assertEquals("/application/", keyFilter); |
| 48 | + } |
| 49 | + |
| 50 | + @Test |
| 51 | + public void getLabelFilterWithProfilesTest() { |
| 52 | + // Test with profiles when labelFilter is null |
| 53 | + List<String> profiles = new ArrayList<>(Arrays.asList("dev", "prod", "staging")); |
| 54 | + |
| 55 | + String[] result = selector.getLabelFilter(profiles); |
| 56 | + |
| 57 | + // Should be reversed: staging, prod, dev |
| 58 | + assertArrayEquals(new String[]{"staging", "prod", "dev"}, result); |
| 59 | + } |
| 60 | + |
| 61 | + @Test |
| 62 | + public void getLabelFilterWithEmptyProfilesTest() { |
| 63 | + // Test with empty profiles when labelFilter is null |
| 64 | + List<String> profiles = new ArrayList<>(); |
| 65 | + |
| 66 | + String[] result = selector.getLabelFilter(profiles); |
| 67 | + |
| 68 | + // Should return empty label array |
| 69 | + assertArrayEquals(new String[]{EMPTY_LABEL}, result); |
| 70 | + } |
| 71 | + |
| 72 | + @Test |
| 73 | + public void getLabelFilterWithImmutableProfilesTest() { |
| 74 | + // Test with immutable profiles list (simulates the UnsupportedOperationException scenario) |
| 75 | + List<String> profiles = List.of("dev", "prod"); // Immutable list |
| 76 | + |
| 77 | + String[] result = selector.getLabelFilter(profiles); |
| 78 | + |
| 79 | + // Should handle immutable list and return reversed: prod, dev |
| 80 | + assertArrayEquals(new String[]{"prod", "dev"}, result); |
| 81 | + } |
| 82 | + |
| 83 | + @Test |
| 84 | + public void getLabelFilterWithSnapshotTest() { |
| 85 | + // Test when snapshot is set |
| 86 | + selector.setSnapshotName("test-snapshot"); |
| 87 | + List<String> profiles = Arrays.asList("dev", "prod"); |
| 88 | + |
| 89 | + String[] result = selector.getLabelFilter(profiles); |
| 90 | + |
| 91 | + // Should return empty array when snapshot is set |
| 92 | + assertArrayEquals(new String[0], result); |
| 93 | + } |
| 94 | + |
| 95 | + @Test |
| 96 | + public void getLabelFilterWithCustomLabelFilterTest() { |
| 97 | + // Test with custom label filter |
| 98 | + selector.setLabelFilter("dev,prod,staging"); |
| 99 | + List<String> profiles = Arrays.asList("ignored"); |
| 100 | + |
| 101 | + String[] result = selector.getLabelFilter(profiles); |
| 102 | + |
| 103 | + // Should be reversed and trimmed |
| 104 | + assertArrayEquals(new String[]{"staging", "prod", "dev"}, result); |
| 105 | + } |
| 106 | + |
| 107 | + @Test |
| 108 | + public void getLabelFilterWithLabelFilterTrailingCommaTest() { |
| 109 | + // Test with trailing comma in label filter |
| 110 | + selector.setLabelFilter("dev,prod,"); |
| 111 | + List<String> profiles = Arrays.asList("ignored"); |
| 112 | + |
| 113 | + String[] result = selector.getLabelFilter(profiles); |
| 114 | + |
| 115 | + // Should include empty label at the end after reversing |
| 116 | + assertArrayEquals(new String[]{EMPTY_LABEL, "prod", "dev"}, result); |
| 117 | + } |
| 118 | + |
| 119 | + @Test |
| 120 | + public void getLabelFilterWithSpacesTest() { |
| 121 | + // Test label filter with spaces (should be trimmed) |
| 122 | + selector.setLabelFilter(" dev , prod , staging "); |
| 123 | + List<String> profiles = Arrays.asList("ignored"); |
| 124 | + |
| 125 | + String[] result = selector.getLabelFilter(profiles); |
| 126 | + |
| 127 | + // Should be reversed and trimmed |
| 128 | + assertArrayEquals(new String[]{"staging", "prod", "dev"}, result); |
| 129 | + } |
| 130 | + |
| 131 | + @Test |
| 132 | + public void getLabelFilterWithDuplicatesTest() { |
| 133 | + // Test label filter with duplicates (should be distinct) |
| 134 | + selector.setLabelFilter("dev,prod,dev,staging,prod"); |
| 135 | + List<String> profiles = Arrays.asList("ignored"); |
| 136 | + |
| 137 | + String[] result = selector.getLabelFilter(profiles); |
| 138 | + |
| 139 | + // Should be reversed, trimmed, and distinct |
| 140 | + assertArrayEquals(new String[]{"staging", "prod", "dev"}, result); |
| 141 | + } |
| 142 | + |
| 143 | + @Test |
| 144 | + public void getLabelFilterWithEmptyLabelsTest() { |
| 145 | + // Test label filter with empty labels |
| 146 | + selector.setLabelFilter("dev,,prod,"); |
| 147 | + List<String> profiles = Arrays.asList("ignored"); |
| 148 | + |
| 149 | + String[] result = selector.getLabelFilter(profiles); |
| 150 | + |
| 151 | + // Should match the expected order and duplicates, including EMPTY_LABEL |
| 152 | + assertArrayEquals(new String[]{EMPTY_LABEL, "prod", EMPTY_LABEL, "dev"}, result); |
| 153 | + } |
| 154 | + |
| 155 | + @Test |
| 156 | + public void validateAndInitValidConfigurationTest() { |
| 157 | + // Test valid configuration |
| 158 | + selector.setKeyFilter("/valid/"); |
| 159 | + selector.setLabelFilter("dev,prod"); |
| 160 | + |
| 161 | + // Should not throw any exception |
| 162 | + selector.validateAndInit(); |
| 163 | + } |
| 164 | + |
| 165 | + @Test |
| 166 | + public void validateAndInitInvalidKeyFilterTest() { |
| 167 | + // Test invalid key filter with asterisk |
| 168 | + selector.setKeyFilter("/invalid*filter/"); |
| 169 | + |
| 170 | + assertThrows(IllegalArgumentException.class, () -> { |
| 171 | + selector.validateAndInit(); |
| 172 | + }); |
| 173 | + } |
| 174 | + |
| 175 | + @Test |
| 176 | + public void validateAndInitInvalidLabelFilterTest() { |
| 177 | + // Test invalid label filter with asterisk |
| 178 | + selector.setLabelFilter("dev*,prod"); |
| 179 | + |
| 180 | + assertThrows(IllegalArgumentException.class, () -> { |
| 181 | + selector.validateAndInit(); |
| 182 | + }); |
| 183 | + } |
| 184 | + |
| 185 | + @Test |
| 186 | + public void validateAndInitSnapshotWithKeyFilterTest() { |
| 187 | + // Test snapshot with key filter (should fail) |
| 188 | + selector.setKeyFilter("/test/"); |
| 189 | + selector.setSnapshotName("test-snapshot"); |
| 190 | + |
| 191 | + assertThrows(IllegalArgumentException.class, () -> { |
| 192 | + selector.validateAndInit(); |
| 193 | + }); |
| 194 | + } |
| 195 | + |
| 196 | + @Test |
| 197 | + public void validateAndInitSnapshotWithLabelFilterTest() { |
| 198 | + // Test snapshot with label filter (should fail) |
| 199 | + selector.setLabelFilter("dev"); |
| 200 | + selector.setSnapshotName("test-snapshot"); |
| 201 | + |
| 202 | + assertThrows(IllegalArgumentException.class, () -> { |
| 203 | + selector.validateAndInit(); |
| 204 | + }); |
| 205 | + } |
| 206 | + |
| 207 | + @Test |
| 208 | + public void validateAndInitValidSnapshotTest() { |
| 209 | + // Test valid snapshot configuration (no key or label filters) |
| 210 | + selector.setSnapshotName("test-snapshot"); |
| 211 | + |
| 212 | + // Should not throw any exception |
| 213 | + selector.validateAndInit(); |
| 214 | + } |
| 215 | + |
| 216 | + @Test |
| 217 | + public void mapLabelNullTest() { |
| 218 | + // Test the private mapLabel method indirectly through getLabelFilter |
| 219 | + selector.setLabelFilter("dev,,prod"); |
| 220 | + List<String> profiles = Arrays.asList("ignored"); |
| 221 | + |
| 222 | + String[] result = selector.getLabelFilter(profiles); |
| 223 | + |
| 224 | + // Empty label should be converted to EMPTY_LABEL constant |
| 225 | + assertTrue(Arrays.asList(result).contains(EMPTY_LABEL)); |
| 226 | + } |
| 227 | + |
| 228 | + @Test |
| 229 | + public void complexScenarioTest() { |
| 230 | + // Test a complex real-world scenario |
| 231 | + List<String> profiles = new ArrayList<>(Arrays.asList("test", "dev", "prod")); |
| 232 | + |
| 233 | + // First call with profiles |
| 234 | + String[] profileResult = selector.getLabelFilter(profiles); |
| 235 | + assertArrayEquals(new String[]{"prod", "dev", "test"}, profileResult); |
| 236 | + |
| 237 | + // Then set a custom label filter |
| 238 | + selector.setLabelFilter("custom1, custom2 ,custom3,"); |
| 239 | + String[] customResult = selector.getLabelFilter(profiles); |
| 240 | + assertArrayEquals(new String[]{EMPTY_LABEL, "custom3", "custom2", "custom1"}, customResult); |
| 241 | + |
| 242 | + // Finally set a snapshot (should override everything) |
| 243 | + selector.setSnapshotName("final-snapshot"); |
| 244 | + String[] snapshotResult = selector.getLabelFilter(profiles); |
| 245 | + assertArrayEquals(new String[0], snapshotResult); |
| 246 | + } |
| 247 | + |
| 248 | + @Test |
| 249 | + public void profilesListModificationSafetyTest() { |
| 250 | + // Test that the original profiles list is not modified |
| 251 | + List<String> originalProfiles = new ArrayList<>(Arrays.asList("a", "b", "c")); |
| 252 | + List<String> profilesCopy = new ArrayList<>(originalProfiles); |
| 253 | + |
| 254 | + selector.getLabelFilter(originalProfiles); |
| 255 | + |
| 256 | + // Original list should remain unchanged |
| 257 | + assertEquals(profilesCopy, originalProfiles); |
| 258 | + } |
| 259 | +} |
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