2 files changed, 79 insertions, 0 deletions
diff --git a/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/RustWriterTests.java b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/RustWriterTests.java
index 16c774f..fff5923 100644
--- a/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/RustWriterTests.java
+++ b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/RustWriterTests.java
@@ -408,6 +408,34 @@ public class RustWriterTests {
         assertThat(string, equalTo("[42; 47]"));
     }
 
+    // === Binary expressions ===
+
+    @Test
+    public void binaryExpressionEqual() throws IOException {
+        var rust = RustBinaryExpression.arbitrary()
+            .withOperator(RustBinaryOperator.EQUAL)
+            .withLeft(RustPath.of("x"))
+            .withRight(RustPath.of("y"))
+            .build();
+
+        var string = write(writer -> writer.writeExpression(rust));
+
+        assertThat(string, equalTo("x == y"));
+    }
+
+    @Test
+    public void binaryExpressionNotEqual() throws IOException {
+        var rust = RustBinaryExpression.arbitrary()
+            .withOperator(RustBinaryOperator.NOT_EQUAL)
+            .withLeft(RustPath.of("x"))
+            .withRight(RustPath.of("y"))
+            .build();
+
+        var string = write(writer -> writer.writeExpression(rust));
+
+        assertThat(string, equalTo("x != y"));
+    }
+
     // === Block expressions ===
 
     @Test
diff --git a/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/ast/RustBinaryExpressionMatcher.java b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/ast/RustBinaryExpressionMatcher.java
new file mode 100644
index 0000000..172f969
--- /dev/null
+++ b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/ast/RustBinaryExpressionMatcher.java
@@ -0,0 +1,51 @@
+// Generated by hobgoblin.
+
+package org.zwobble.hobgoblin.compiler.output.lang.rust.ast;
+
+// Custom area start: org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustBinaryExpressionMatcher imports
+// Custom area end: org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustBinaryExpressionMatcher imports
+
+public class RustBinaryExpressionMatcher implements org.zwobble.precisely.Matcher<java.lang.Object> {
+    public static org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustBinaryExpressionMatcher isRustBinaryExpression() {
+        return new org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustBinaryExpressionMatcher(java.util.List.of());
+    }
+
+    private final java.util.List<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustBinaryExpression>> submatchers;
+
+    private RustBinaryExpressionMatcher(java.util.List<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustBinaryExpression>> submatchers) {
+        this.submatchers = submatchers;
+    }
+
+    public org.zwobble.precisely.MatchResult match(java.lang.Object actual) {
+        return this.toMatcher().match(actual);
+    }
+
+    public org.zwobble.precisely.TextTree describe() {
+        return this.toMatcher().describe();
+    }
+
+    private org.zwobble.precisely.Matcher<java.lang.Object> toMatcher() {
+        return org.zwobble.precisely.Matchers.instanceOf(org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustBinaryExpression.class, this.submatchers);
+    }
+
+    public org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustBinaryExpressionMatcher withOperator(org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustBinaryOperator> operator) {
+        var submatchers = new java.util.ArrayList<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustBinaryExpression>>(this.submatchers);
+        submatchers.add(org.zwobble.precisely.Matchers.has("operator", org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustBinaryExpression::operator, operator));
+        return new org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustBinaryExpressionMatcher(submatchers);
+    }
+
+    public org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustBinaryExpressionMatcher withLeft(org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustExpression> left) {
+        var submatchers = new java.util.ArrayList<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustBinaryExpression>>(this.submatchers);
+        submatchers.add(org.zwobble.precisely.Matchers.has("left", org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustBinaryExpression::left, left));
+        return new org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustBinaryExpressionMatcher(submatchers);
+    }
+
+    public org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustBinaryExpressionMatcher withRight(org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustExpression> right) {
+        var submatchers = new java.util.ArrayList<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustBinaryExpression>>(this.submatchers);
+        submatchers.add(org.zwobble.precisely.Matchers.has("right", org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustBinaryExpression::right, right));
+        return new org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustBinaryExpressionMatcher(submatchers);
+    }
+
+    // Custom area start: org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustBinaryExpressionMatcher body
+    // Custom area end: org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustBinaryExpressionMatcher body
+}