fix check-statement-is-void. add tests

see #291

1 files changed, 31 insertions, 0 deletions

diff --git a/test/compile_errors.zig b/test/compile_errors.zig
index 57e6e54d54..7bde276242 100644
--- a/test/compile_errors.zig
+++ b/test/compile_errors.zig
@@ -1348,6 +1348,37 @@ pub fn addCases(cases: &tests.CompileErrorContext) {
         \\fn bar() -> i32 { 0 }
     , ".tmp_source.zig:2:8: error: expression value is ignored");
 
+    cases.add("ignored assert-err-ok return value",
+        \\export fn foo() {
+        \\    %%bar();
+        \\}
+        \\fn bar() -> %i32 { 0 }
+    , ".tmp_source.zig:2:5: error: expression value is ignored");
+
+    cases.add("ignored statement value",
+        \\export fn foo() {
+        \\    1;
+        \\}
+    , ".tmp_source.zig:2:5: error: expression value is ignored");
+
+    cases.add("ignored comptime statement value",
+        \\export fn foo() {
+        \\    comptime {1;}
+        \\}
+    , ".tmp_source.zig:2:15: error: expression value is ignored");
+
+    cases.add("ignored comptime value",
+        \\export fn foo() {
+        \\    comptime 1;
+        \\}
+    , ".tmp_source.zig:2:5: error: expression value is ignored");
+
+    cases.add("ignored defered statement value",
+        \\export fn foo() {
+        \\    defer {1;}
+        \\}
+    , ".tmp_source.zig:2:12: error: expression value is ignored");
+
     cases.add("integer literal on a non-comptime var",
         \\export fn foo() {
         \\    var i = 0;