[vala/staging] tests: Add regression test for modulo operation on double and float

[Rico Tzschichholz <ricotz src gnome org>]

commit 8f738797f470550046ba68b6618d99ef89e03c29
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Thu Feb 21 08:04:03 2019 +0100

    tests: Add regression test for modulo operation on double and float
    
    https://bugzilla.gnome.org/show_bug.cgi?id=610660

 tests/Makefile.am                |  1 +
 tests/basic-types/bug610660.vala | 22 ++++++++++++++++++++++
 2 files changed, 23 insertions(+)
---
diff --git a/tests/Makefile.am b/tests/Makefile.am
index ef5fc1c72..178b897dc 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -41,6 +41,7 @@ TESTS = \
        basic-types/bug596785.vala \
        basic-types/bug604371.vala \
        basic-types/bug604589.test \
+       basic-types/bug610660.vala \
        basic-types/bug622178.vala \
        basic-types/bug632322.vala \
        basic-types/bug641308.test \
diff --git a/tests/basic-types/bug610660.vala b/tests/basic-types/bug610660.vala
new file mode 100644
index 000000000..88585e10a
--- /dev/null
+++ b/tests/basic-types/bug610660.vala
@@ -0,0 +1,22 @@
+void main () {
+       {
+               double d = 42.0;
+               d = d % 42.0;
+               assert (d == 0.0);
+       }
+       {
+               double d = 23.0;
+               d %= 23.0;
+               assert (d == 0.0);
+       }
+       {
+               float f = 42.0f;
+               f = f % 42.0f;
+               assert (f == 0.0f);
+       }
+       {
+               float f = 23.0f;
+               f %= 23.0f;
+               assert (f == 0.0f);
+       }
+}