Add tests

4 files changed, 224 insertions, 0 deletions

diff --git a/ios/MullvadRESTTests/DurationTests.swift b/ios/MullvadRESTTests/DurationTests.swift
new file mode 100644
index 0000000000..c5b5906c02
--- /dev/null
+++ b/ios/MullvadRESTTests/DurationTests.swift
@@ -0,0 +1,35 @@
+//
+//  DurationTests.swift
+//  MullvadRESTTests
+//
+//  Created by pronebird on 05/11/2022.
+//  Copyright © 2022 Mullvad VPN AB. All rights reserved.
+//
+
+@testable import MullvadREST
+import XCTest
+
+final class DurationTests: XCTestCase {
+    func testComparable() throws {
+        XCTAssertEqual(REST.Duration.milliseconds(1000), .seconds(1))
+        XCTAssertEqual(REST.Duration.milliseconds(.max), .seconds(.max))
+
+        XCTAssertGreaterThan(REST.Duration.milliseconds(1001), .seconds(1))
+        XCTAssertGreaterThanOrEqual(REST.Duration.seconds(1), .milliseconds(1000))
+
+        XCTAssertLessThan(REST.Duration.milliseconds(999), .seconds(1))
+        XCTAssertLessThanOrEqual(REST.Duration.seconds(1), .milliseconds(1000))
+    }
+
+    func testMultiplication() throws {
+        XCTAssertEqual(REST.Duration.seconds(4) * 4, .seconds(16))
+        XCTAssertEqual(REST.Duration.seconds(4) * 4, .seconds(16))
+        XCTAssertEqual(REST.Duration.milliseconds(.max - 1) * 2, .milliseconds(.max))
+    }
+
+    func testFormat() throws {
+        XCTAssertEqual(REST.Duration.milliseconds(999).format(), "999ms")
+        XCTAssertEqual(REST.Duration.milliseconds(1000).format(), "1s")
+        XCTAssertEqual(REST.Duration.milliseconds(1200).format(), "1.20s")
+    }
+}
diff --git a/ios/MullvadRESTTests/ExponentialBackoffTests.swift b/ios/MullvadRESTTests/ExponentialBackoffTests.swift
new file mode 100644
index 0000000000..85529e260a
--- /dev/null
+++ b/ios/MullvadRESTTests/ExponentialBackoffTests.swift
@@ -0,0 +1,59 @@
+//
+//  ExponentialBackoffTests.swift
+//  ExponentialBackoffTests
+//
+//  Created by pronebird on 05/11/2022.
+//  Copyright © 2022 Mullvad VPN AB. All rights reserved.
+//
+
+@testable import MullvadREST
+import XCTest
+
+final class ExponentialBackoffTests: XCTestCase {
+    func testExponentialBackoff() {
+        var backoff = ExponentialBackoff(initial: .seconds(2), multiplier: 3)
+
+        XCTAssertEqual(backoff.next(), .seconds(2))
+        XCTAssertEqual(backoff.next(), .seconds(6))
+        XCTAssertEqual(backoff.next(), .seconds(18))
+    }
+
+    func testAtMaximumValue() {
+        var backoff = ExponentialBackoff(initial: .milliseconds(.max - 1), multiplier: 2)
+
+        XCTAssertEqual(backoff.next(), .milliseconds(.max - 1))
+        XCTAssertEqual(backoff.next(), .seconds(.max))
+        XCTAssertEqual(backoff.next(), .seconds(.max))
+    }
+
+    func testMaximumBound() {
+        var backoff = ExponentialBackoff(
+            initial: .milliseconds(2),
+            multiplier: 3,
+            maxDelay: .milliseconds(7)
+        )
+
+        XCTAssertEqual(backoff.next(), .milliseconds(2))
+        XCTAssertEqual(backoff.next(), .milliseconds(6))
+        XCTAssertEqual(backoff.next(), .milliseconds(7))
+    }
+
+    func testMinimumValue() {
+        var backoff = ExponentialBackoff(initial: .milliseconds(0), multiplier: 10)
+
+        XCTAssertEqual(backoff.next(), .milliseconds(0))
+        XCTAssertEqual(backoff.next(), .milliseconds(0))
+
+        backoff = ExponentialBackoff(initial: .milliseconds(1), multiplier: 0)
+
+        XCTAssertEqual(backoff.next(), .milliseconds(1))
+        XCTAssertEqual(backoff.next(), .milliseconds(0))
+    }
+
+    func testJitter() {
+        let initial = REST.Duration.milliseconds(500)
+        var iterator = Jittered(ExponentialBackoff(initial: initial, multiplier: 3))
+
+        XCTAssertGreaterThanOrEqual(iterator.next()!, initial)
+    }
+}
diff --git a/ios/MullvadVPN.xcodeproj/project.pbxproj b/ios/MullvadVPN.xcodeproj/project.pbxproj
index 6c393d2cad..a1cea3ff0a 100644
--- a/ios/MullvadVPN.xcodeproj/project.pbxproj
+++ b/ios/MullvadVPN.xcodeproj/project.pbxproj
@@ -304,6 +304,9 @@
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 		58FB865A26EA214400F188BC /* RelayCacheTrackerObserver.swift in Sources */ = {isa = PBXBuildFile; fileRef = 58FB865926EA214400F188BC /* RelayCacheTrackerObserver.swift */; };
+		58FBFBE9291622580020E046 /* ExponentialBackoffTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 58FBFBE8291622580020E046 /* ExponentialBackoffTests.swift */; };
+		58FBFBEA291622580020E046 /* MullvadREST.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 06799ABC28F98E1D00ACD94E /* MullvadREST.framework */; };
+		58FBFBF1291630700020E046 /* DurationTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 58FBFBF0291630700020E046 /* DurationTests.swift */; };
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 		58FD5BF024238EB300112C88 /* SKProduct+Formatting.swift in Sources */ = {isa = PBXBuildFile; fileRef = 58FD5BEF24238EB300112C88 /* SKProduct+Formatting.swift */; };
@@ -434,6 +437,13 @@
 			remoteGlobalIDString = 58FBDA9722A519BC00EB69A3;
 			remoteInfo = WireGuardGoBridge;
 		};
+		58FBFBEB291622580020E046 /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = 58CE5E58224146200008646E /* Project object */;
+			proxyType = 1;
+			remoteGlobalIDString = 06799ABB28F98E1D00ACD94E;
+			remoteInfo = MullvadREST;
+		};
 /* End PBXContainerItemProxy section */
 
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@@ -787,6 +797,9 @@
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 		58FB865926EA214400F188BC /* RelayCacheTrackerObserver.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RelayCacheTrackerObserver.swift; sourceTree = "<group>"; };
+		58FBFBE6291622580020E046 /* MullvadRESTTests.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = MullvadRESTTests.xctest; sourceTree = BUILT_PRODUCTS_DIR; };
+		58FBFBE8291622580020E046 /* ExponentialBackoffTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ExponentialBackoffTests.swift; sourceTree = "<group>"; };
+		58FBFBF0291630700020E046 /* DurationTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = DurationTests.swift; sourceTree = "<group>"; };
 		58FC040927B3EE03001C21F0 /* TunnelMonitor.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TunnelMonitor.swift; sourceTree = "<group>"; };
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@@ -919,6 +932,14 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
+		58FBFBE3291622580020E046 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				58FBFBEA291622580020E046 /* MullvadREST.framework in Frameworks */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
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@@ -1200,6 +1221,7 @@
 				581943D728F800C900B0CB5E /* MullvadLogging */,
 				581943F228F8014500B0CB5E /* MullvadTypes */,
 				06799ABD28F98E1D00ACD94E /* MullvadREST */,
+				58FBFBE7291622580020E046 /* MullvadRESTTests */,
 				063F02742902B63F001FA09F /* RelayCache */,
 				5898D29929017DAC00EB5EBA /* RelaySelector */,
 				5898D28A29017BD400EB5EBA /* TunnelProviderMessaging */,
@@ -1226,6 +1248,7 @@
 				063F02732902B63F001FA09F /* RelayCache.framework */,
 				5898D28929017BD400EB5EBA /* libTunnelProviderMessaging.a */,
 				5898D29829017DAC00EB5EBA /* libRelaySelector.a */,
+				58FBFBE6291622580020E046 /* MullvadRESTTests.xctest */,
 			);
 			name = Products;
 			sourceTree = "<group>";
@@ -1447,6 +1470,15 @@
 			path = Assets;
 			sourceTree = "<group>";
 		};
+		58FBFBE7291622580020E046 /* MullvadRESTTests */ = {
+			isa = PBXGroup;
+			children = (
+				58FBFBF0291630700020E046 /* DurationTests.swift */,
+				58FBFBE8291622580020E046 /* ExponentialBackoffTests.swift */,
+			);
+			path = MullvadRESTTests;
+			sourceTree = "<group>";
+		};
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@@ -1733,6 +1765,24 @@
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 			productType = "com.apple.product-type.library.static";
 		};
+		58FBFBE5291622580020E046 /* MullvadRESTTests */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 58FBFBEF291622580020E046 /* Build configuration list for PBXNativeTarget "MullvadRESTTests" */;
+			buildPhases = (
+				58FBFBE2291622580020E046 /* Sources */,
+				58FBFBE3291622580020E046 /* Frameworks */,
+				58FBFBE4291622580020E046 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+				58FBFBEC291622580020E046 /* PBXTargetDependency */,
+			);
+			name = MullvadRESTTests;
+			productName = MullvadRESTTests;
+			productReference = 58FBFBE6291622580020E046 /* MullvadRESTTests.xctest */;
+			productType = "com.apple.product-type.bundle.unit-test";
+		};
 /* End PBXNativeTarget section */
 
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@@ -1799,6 +1849,9 @@
 					58FBDA9722A519BC00EB69A3 = {
 						CreatedOnToolsVersion = 10.2.1;
 					};
+					58FBFBE5291622580020E046 = {
+						CreatedOnToolsVersion = 14.1;
+					};
 				};
 			};
 			buildConfigurationList = 58CE5E5B224146200008646E /* Build configuration list for PBXProject "MullvadVPN" */;
@@ -1828,6 +1881,7 @@
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 				581943F028F8014500B0CB5E /* MullvadTypes */,
 				06799ABB28F98E1D00ACD94E /* MullvadREST */,
+				58FBFBE5291622580020E046 /* MullvadRESTTests */,
 				063F02722902B63F001FA09F /* RelayCache */,
 				5898D29729017DAC00EB5EBA /* RelaySelector */,
 				5898D28829017BD300EB5EBA /* TunnelProviderMessaging */,
@@ -1892,6 +1946,13 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
+		58FBFBE4291622580020E046 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
 /* End PBXResourcesBuildPhase section */
 
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@@ -2290,6 +2351,15 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
+		58FBFBE2291622580020E046 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				58FBFBE9291622580020E046 /* ExponentialBackoffTests.swift in Sources */,
+				58FBFBF1291630700020E046 /* DurationTests.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
 /* End PBXSourcesBuildPhase section */
 
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@@ -2373,6 +2443,11 @@
 			target = 58FBDA9722A519BC00EB69A3 /* WireGuardGoBridge */;
 			targetProxy = 58FBDAA122A52A6800EB69A3 /* PBXContainerItemProxy */;
 		};
+		58FBFBEC291622580020E046 /* PBXTargetDependency */ = {
+			isa = PBXTargetDependency;
+			target = 06799ABB28F98E1D00ACD94E /* MullvadREST */;
+			targetProxy = 58FBFBEB291622580020E046 /* PBXContainerItemProxy */;
+		};
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@@ -3014,6 +3089,42 @@
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 		};
+		58FBFBED291622580020E046 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++20";
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CODE_SIGN_STYLE = Automatic;
+				CURRENT_PROJECT_VERSION = 1;
+				DEVELOPMENT_TEAM = CKG9MXH72F;
+				GENERATE_INFOPLIST_FILE = YES;
+				MARKETING_VERSION = 1.0;
+				PRODUCT_BUNDLE_IDENTIFIER = net.mullvad.MullvadVPN.MullvadRESTTests;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_EMIT_LOC_STRINGS = NO;
+				SWIFT_VERSION = 5.0;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		58FBFBEE291622580020E046 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++20";
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CODE_SIGN_STYLE = Automatic;
+				CURRENT_PROJECT_VERSION = 1;
+				DEVELOPMENT_TEAM = CKG9MXH72F;
+				GENERATE_INFOPLIST_FILE = YES;
+				MARKETING_VERSION = 1.0;
+				PRODUCT_BUNDLE_IDENTIFIER = net.mullvad.MullvadVPN.MullvadRESTTests;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_EMIT_LOC_STRINGS = NO;
+				SWIFT_VERSION = 5.0;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
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@@ -3143,6 +3254,15 @@
 			defaultConfigurationIsVisible = 0;
 			defaultConfigurationName = Release;
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+		58FBFBEF291622580020E046 /* Build configuration list for PBXNativeTarget "MullvadRESTTests" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				58FBFBED291622580020E046 /* Debug */,
+				58FBFBEE291622580020E046 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
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diff --git a/ios/MullvadVPN.xcodeproj/xcshareddata/xcschemes/MullvadVPN.xcscheme b/ios/MullvadVPN.xcodeproj/xcshareddata/xcschemes/MullvadVPN.xcscheme
index 5f4b4b5a25..dc70ad4ec7 100644
--- a/ios/MullvadVPN.xcodeproj/xcshareddata/xcschemes/MullvadVPN.xcscheme
+++ b/ios/MullvadVPN.xcodeproj/xcshareddata/xcschemes/MullvadVPN.xcscheme
@@ -72,6 +72,16 @@
                ReferencedContainer = "container:MullvadVPN.xcodeproj">
             </BuildableReference>
          </TestableReference>
+         <TestableReference
+            skipped = "NO">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "58FBFBE5291622580020E046"
+               BuildableName = "MullvadRESTTests.xctest"
+               BlueprintName = "MullvadRESTTests"
+               ReferencedContainer = "container:MullvadVPN.xcodeproj">
+            </BuildableReference>
+         </TestableReference>
       </Testables>
    </TestAction>
    <LaunchAction