Add native function declarations for all revelent Test contract funct…

…ions

runtime/stdlib/contracts/test.cdc

@@ -437,4 +437,71 @@ access(all) contract Test {
         assert(found, message: "the error message did not contain the given sub-string")
     }
 
+    /// Creates a matcher with a test function.
+    /// The test function is of type '((T): Bool)',
+    /// where 'T' is bound to 'AnyStruct'.
+    ///
+    access(all)
+    native fun newMatcher<T: AnyStruct>(_ test: ((T): Bool)): Test.Matcher {}
+
+    /// Wraps a function call in a closure, and expects it to fail with
+    /// an error message that contains the given error message portion.
+    ///
+    access(all)
+    native fun expectFailure(
+        _ functionWrapper: ((): Void),
+        errorMessageSubstring: String
+    ) {}
+
+    /// Expect function tests a value against a matcher
+    /// and fails the test if it's not a match.
+    ///
+    access(all)
+    native fun expect<T: AnyStruct>(_ value: T, _ matcher: Test.Matcher) {}
+
+    /// Returns a matcher that succeeds if the tested
+    /// value is equal to the given value.
+    ///
+    access(all)
+    native fun equal<T: AnyStruct>(_ value: T): Test.Matcher {}
+
+    /// Fails the test-case if the given values are not equal, and
+    /// reports a message which explains how the two values differ.
+    ///
+    access(all)
+    native fun assertEqual(_ expected: AnyStruct, _ actual: AnyStruct) {}
+
+    /// Returns a matcher that succeeds if the tested value is
+    /// an array or dictionary and the tested value contains
+    /// no elements.
+    ///
+    access(all)
+    native fun beEmpty(): Test.Matcher {}
+
+    /// Returns a matcher that succeeds if the tested value is
+    /// an array or dictionary and has the given number of elements.
+    ///
+    access(all)
+    native fun haveElementCount(_ count: Int): Test.Matcher {}
+
+    /// Returns a matcher that succeeds if the tested value is
+    /// an array that contains a value that is equal to the given
+    /// value, or the tested value is a dictionary that contains
+    /// an entry where the key is equal to the given value.
+    ///
+    access(all)
+    native fun contain(_ element: AnyStruct): Test.Matcher {}
+
+    /// Returns a matcher that succeeds if the tested value
+    /// is a number and greater than the given number.
+    ///
+    access(all)
+    native fun beGreaterThan(_ value: Number): Test.Matcher {}
+
+    /// Returns a matcher that succeeds if the tested value
+    /// is a number and less than the given number.
+    ///
+    access(all)
+    native fun beLessThan(_ value: Number): Test.Matcher {}
+
 }

runtime/stdlib/test_contract.go

@@ -950,7 +950,10 @@ func newTestContractType() *TestContractType {
 	program, err := parser.ParseProgram(
 		nil,
 		contracts.TestContract,
-		parser.Config{},
+		parser.Config{
+			NativeModifierEnabled: true,
+			TypeParametersEnabled: true,
+		},
 	)
 	if err != nil {
 		panic(err)
@@ -965,8 +968,9 @@ func newTestContractType() *TestContractType {
 		TestContractLocation,
 		nil,
 		&sema.Config{
-			BaseValueActivation: activation,
-			AccessCheckMode:     sema.AccessCheckModeStrict,
+			BaseValueActivation:     activation,
+			AccessCheckMode:         sema.AccessCheckModeStrict,
+			AllowNativeDeclarations: true,
 		},
 	)
 	if err != nil {

runtime/stdlib/test_test.go

@@ -57,7 +57,10 @@ func newTestContractInterpreterWithTestFramework(
 	program, err := parser.ParseProgram(
 		nil,
 		[]byte(code),
-		parser.Config{},
+		parser.Config{
+			NativeModifierEnabled: true,
+			TypeParametersEnabled: true,
+		},
 	)
 	require.NoError(t, err)
 
@@ -70,8 +73,9 @@ func newTestContractInterpreterWithTestFramework(
 		utils.TestLocation,
 		nil,
 		&sema.Config{
-			BaseValueActivation: activation,
-			AccessCheckMode:     sema.AccessCheckModeStrict,
+			BaseValueActivation:     activation,
+			AccessCheckMode:         sema.AccessCheckModeStrict,
+			AllowNativeDeclarations: true,
 			ImportHandler: func(
 				checker *sema.Checker,
 				importedLocation common.Location,
@@ -931,7 +935,7 @@ func TestAssertEqual(t *testing.T) {
 		    pub fun test() {
 		        let foo = Foo()
 		        let bar <- create Bar()
-		        Test.expect(foo, Test.equal(<-bar))
+		        Test.assertEqual(foo, <-bar)
 		    }
 
 		    pub struct Foo {}