Move around tests in the categories; Add missing tests

We now also test for local variables in functions, and add a simple
test to see if imports work properly.

1 files changed, 133 insertions, 13 deletions

diff --git a/tests/variables.sh b/tests/variables.sh
index 7b44fe7..2d08c76 100755
--- a/tests/variables.sh
+++ b/tests/variables.sh
@@ -68,36 +68,156 @@ fn main() {
 EOF
 echo " OK"
 
-echo -n "- Short-circuiting assignments: "
-assert_exit_status_stdin 5 <<EOF
+echo -n "- Nested Blocks: "
+assert_exit_status_stdin 3 <<EOF
 fn main() { 
-    let x: int = 5;
-    let y: int = (1 || (x = 10));
+    let x: int = 1;
+    {
+        let y: int = 3;
+        x = y;
+    }
     return x;  
 }
 EOF
 
-assert_exit_status_stdin 10 <<EOF
+assert_exit_status_stdin 15 <<EOF
+fn main(): int {
+    let x: int;
+    {
+        let y: int = 10;
+        {
+            let z: int = 5;
+            x = y + z;
+        }
+    }
+    return x;
+}
+EOF
+
+assert_exit_status_stdin 8 <<EOF
+fn main(): int {
+    let x: int = 0;
+    {
+        let y: int = 3;
+        x = x + y;
+    }
+    {
+        let y: int = 5;
+        x = x + y;
+    }
+    return x;
+}
+EOF
+
+assert_compile_failure_stdin <<EOF
+fn main(): int {
+    let x: int;
+    {
+        let y: int = 10;
+        {
+            let z: int = 5;
+            x = y + z;
+        }
+        y = z;
+    }
+    return x;
+}
+EOF
+
+assert_compile_failure_stdin <<EOF
+fn main(): int {
+    let x: int;
+    {
+        let y: int = 10;
+        {
+            let z: int = 5;
+            x = y + z;
+        }
+    }
+    x = z;
+    return x;
+}
+EOF
+
+assert_compile_failure_stdin <<EOF
+fn main(): int {
+    let x: int;
+    {
+        let y: int = 10;
+        {
+            let z: int = 5;
+            x = y + z;
+        }
+    }
+    x = y;
+    return x;
+}
+EOF
+
+# We do not allow shadowing variables on purpose
+assert_compile_failure_stdin <<EOF
+fn main(): int {
+    let x: int;
+    {
+        let y: int = 10;
+        {
+            let z: int = 5;
+            x = y + z;
+            let x: int = 10;
+        }
+    }
+    return x;
+}
+EOF
+echo " OK"
+
+echo -n "- Conditionals w/ blocks: "
+assert_exit_status_stdin 3 <<EOF
 fn main() { 
-    let x: int = 5;
-    let y: int = (0 || (x = 10));
+    let x: int = 1;
+    if (x == 1) {
+        let y: int = 3;
+        x = y;
+    }
+    return x;  
+}
+EOF
+
+assert_exit_status_stdin 1 <<EOF
+fn main() { 
+    let x: int = 1;
+    if (x != 1) {
+        let y: int = 3;
+        x = y;
+    }
     return x;  
 }
 EOF
 
 assert_exit_status_stdin 5 <<EOF
 fn main() { 
-    let x: int = 5;
-    let y: int = (0 && (x = 10));
+    let x: int = 1;
+    if (x != 1) {
+        let y: int = 3;
+        x = y;
+    } else {
+        let y: int = 5;
+        x = y;
+    }
     return x;  
 }
 EOF
 
-assert_exit_status_stdin 10 <<EOF
+assert_compile_failure_stdin <<EOF
 fn main() { 
-    let x: int = 5;
-    let y: int = (1 && (x = 10));
+    let x: int = 1;
+    if (x != 1) {
+        let y: int = 3;
+        x = y;
+    }
+    x = y; // Invalid
     return x;  
 }
 EOF
-echo " OK"
+
+echo " OK"
\ No newline at end of file