TEST: Add test for expr as assert message

Author: ubaidsk

integration_tests/CMakeLists.txt

@@ -416,6 +416,8 @@ RUN(NAME expr_13             LABELS llvm c
 RUN(NAME expr_14             LABELS cpython llvm c)
 RUN(NAME expr_15             LABELS cpython llvm c)
 RUN(NAME expr_16             LABELS cpython c)
+RUN(NAME expr_17             LABELS cpython llvm c)
+RUN(NAME expr_18    FAIL     LABELS cpython llvm c)
 
 RUN(NAME expr_01u            LABELS cpython llvm c NOFAST)
 RUN(NAME expr_02u            LABELS cpython llvm c NOFAST)

integration_tests/expr_17.py

@@ -0,0 +1,16 @@
+from lpython import i32, f64
+
+def main0():
+    a: i32 = 4
+    b: i32 = 3
+    c: i32 = 12
+    assert a * b == c, a * b
+
+    d: f64 = 0.4
+    e: f64 = 2.5
+    f: f64 = 1.0
+    assert abs((d * e) - f) <= 1e-6, abs((d * e) - f)
+
+    assert a == b + 1, "Failed: a == b + 1"
+
+main0()

integration_tests/expr_18.py

@@ -0,0 +1,9 @@
+from lpython import i32, f64
+
+def main0():
+    a: i32 = 4
+    b: i32 = 3
+    c: i32 = 12
+    assert a * b != c, "Error: 3 * 4 equals 12"
+
+main0()