Add test for evalExpression()

2 files changed, 32 insertions, 1 deletions

diff --git a/src/main/java/org/zwobble/hobgoblin/compiler/typechecker/TypeChecker.java b/src/main/java/org/zwobble/hobgoblin/compiler/typechecker/TypeChecker.java
index 840010f..a7fe03f 100644
--- a/src/main/java/org/zwobble/hobgoblin/compiler/typechecker/TypeChecker.java
+++ b/src/main/java/org/zwobble/hobgoblin/compiler/typechecker/TypeChecker.java
@@ -683,7 +683,7 @@ public class TypeChecker {
 
     // == Expressions ==
 
-    private static TypeLevelValue evalExpression(
+    static TypeLevelValue evalExpression(
         UntypedExpressionNode expression,
         TypeCheckerNamespaceContext context
     ) {
diff --git a/src/test/java/org/zwobble/hobgoblin/compiler/typechecker/TypeCheckerEvalExpressionTests.java b/src/test/java/org/zwobble/hobgoblin/compiler/typechecker/TypeCheckerEvalExpressionTests.java
new file mode 100644
index 0000000..1c4d276
--- /dev/null
+++ b/src/test/java/org/zwobble/hobgoblin/compiler/typechecker/TypeCheckerEvalExpressionTests.java
@@ -0,0 +1,31 @@
+package org.zwobble.hobgoblin.compiler.typechecker;
+
+import org.junit.jupiter.api.Test;
+import org.zwobble.hobgoblin.compiler.ast.untyped.UntypedReferenceNode;
+import org.zwobble.hobgoblin.compiler.sources.NullSource;
+import org.zwobble.hobgoblin.compiler.types.DatabaseSchema;
+import org.zwobble.hobgoblin.compiler.types.NamespaceName;
+import org.zwobble.hobgoblin.compiler.types.Table;
+import org.zwobble.hobgoblin.compiler.types.Types;
+
+import static org.zwobble.precisely.AssertThat.assertThat;
+import static org.zwobble.precisely.Matchers.equalTo;
+
+public class TypeCheckerEvalExpressionTests {
+    @Test
+    public void canEvaluateReference() {
+        var untyped = UntypedReferenceNode.arbitrary()
+            .withName("authors")
+            .build();
+        var globalContext = TypeCheckerContextArb.globalContext();
+        var namespaceName = NamespaceName.of("App");
+        var namespaceContext = globalContext.enterNamespace(namespaceName);
+        var databaseSchema = new DatabaseSchema(namespaceName, "blogApp");
+        var table = new Table(databaseSchema, "authors");
+        namespaceContext.declare("authors", Types.table(table), NullSource.INSTANCE);
+
+        var typed = TypeChecker.evalExpression(untyped, namespaceContext);
+
+        assertThat(typed, equalTo(table));
+    }
+}