add passing test for floating point edge case

2017-02-26 16:30:15 -05:00 · 2017-02-26 16:30:15 -05:00 · 8dd0b4e1f1
commit 8dd0b4e1f1
parent 0ac1934ad6
1 changed files with 15 additions and 0 deletions
--- a/test/cases/math.zig
+++ b/test/cases/math.zig
@ -201,3 +201,18 @@ fn smallIntAddition() {

    assert(result == 0);
 }
+
+fn testFloatEquality() {
+    @setFnTest(this);
+
+    const x: f64 = 0.012;
+    const y: f64 = x + 1.0;
+
+    testFloatEqualityImpl(x, y);
+    comptime testFloatEqualityImpl(x, y);
+}
+
+fn testFloatEqualityImpl(x: f64, y: f64) {
+    const y2 = x + 1.0;
+    assert(y == y2);
+}