diff --git a/NEXT b/NEXT
index 47acbf6..d64b229 100644
--- a/NEXT
+++ b/NEXT
@@ -45,7 +45,7 @@ more on errors:
 
 + vm impl
 
-- test cases for assignments inside expr, to demonstrate they are valid
++ test cases for assignments inside expr, to demonstrate they are valid
 
 - reflection: allow filling toplevel structs of different types
 
diff --git a/test.py b/test.py
index e784000..5ce88a3 100755
--- a/test.py
+++ b/test.py
@@ -389,6 +389,11 @@
 
     [122.1, f'print  {(1<<31)-1}-1',  f'{ (1<<31)-2}'],
     [122.2, f'print -{(1<<31)-1}+1',  f'{-(1<<31)+2}'],
+
+    [123.1, 'var a; print "foo"+(a=1); print a', 'foo1\n1'],
+    [123.2, 'var a; print 2+(a=1); print a',     '3\n1'],
+    [123.3, 'def b{print "foo"+(a=1); print a}', 'foo1\n1'],
+    [123.4, 'def b{var a; print "foo"+(a=1); print a}', 'foo1\n1'],
 ]
 
 tests_64b = [
diff --git a/testapi_test.go b/testapi_test.go
index 0c0a57f..135e83d 100644
--- a/testapi_test.go
+++ b/testapi_test.go
@@ -381,6 +381,10 @@ func TestInterpretFromPy(t *testing.T) {
 		{`121.2`, `print 1/0.0`, "+Inf", false, false, ""},
 		{`122.1`, `print  2147483647-1`, "2147483646", false, false, ""},
 		{`122.2`, `print -2147483647+1`, "-2147483646", false, false, ""},
+		{`123.1`, `var a; print "foo"+(a=1); print a`, "foo1\n1", false, false, ""},
+		{`123.2`, `var a; print 2+(a=1); print a`, "3\n1", false, false, ""},
+		{`123.3`, `def b{print "foo"+(a=1); print a}`, "foo1\n1", false, false, ""},
+		{`123.4`, `def b{var a; print "foo"+(a=1); print a}`, "foo1\n1", false, false, ""},
 		{`122.1-64`, `print  9223372036854775807-1`, "9223372036854775806", false, false, ""},
 		{`122.2-64`, `print -9223372036854775807+1`, "-9223372036854775806", false, false, ""},
 	}