[gjs] tests: Add imports.format test

[Florian Müllner <fmuellner src gnome org>]

commit c08e211881b4ea8334c04158a6740b053a517868
Author: Florian Müllner <fmuellner gnome org>
Date:   Wed Oct 16 15:05:15 2013 +0200

    tests: Add imports.format test
    
    https://bugzilla.gnome.org/show_bug.cgi?id=709907

 Makefile-insttest.am             |    1 +
 installed-tests/js/testFormat.js |   67 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 68 insertions(+), 0 deletions(-)
---
diff --git a/Makefile-insttest.am b/Makefile-insttest.am
index e48b6bb..2ebdc77 100644
--- a/Makefile-insttest.am
+++ b/Makefile-insttest.am
@@ -99,6 +99,7 @@ dist_jstests_DATA += \
        installed-tests/js/testGDBus.js                 \
        installed-tests/js/testEverythingBasic.js               \
        installed-tests/js/testEverythingEncapsulated.js        \
+       installed-tests/js/testFormat.js                \
        installed-tests/js/testGIMarshalling.js         \
        installed-tests/js/testGObjectClass.js          \
        installed-tests/js/testJS1_8.js                 \
diff --git a/installed-tests/js/testFormat.js b/installed-tests/js/testFormat.js
new file mode 100644
index 0000000..da3d13b
--- /dev/null
+++ b/installed-tests/js/testFormat.js
@@ -0,0 +1,67 @@
+// application/javascript;version=1.8
+// tests for imports.format module
+
+const Format = imports.format;
+const JSUnit = imports.jsUnit;
+
+function testEscape() {
+    var foo = '%d%%'.format(10);
+    JSUnit.assertEquals("escaped '%'", "10%", foo);
+}
+
+function testStrings() {
+    var foo = '%s'.format("Foo");
+    var foobar = '%s %s'.format("Foo", "Bar");
+    var barfoo = '%2$s %1$s'.format("Foo", "Bar");
+
+    JSUnit.assertEquals("single string argument", "Foo", foo);
+    JSUnit.assertEquals("two string arguments", "Foo Bar", foobar);
+    JSUnit.assertEquals("two swapped string arguments", "Bar Foo", barfoo);
+}
+
+function testFixedNumbers() {
+    var foo = '%d'.format(42);
+    var bar = '%x'.format(42);
+
+    JSUnit.assertEquals("base-10 42", "42", foo);
+    JSUnit.assertEquals("base-16 42", "2a", bar);
+}
+
+function testFloating() {
+    var foo = '%f'.format(0.125);
+    var bar = '%.2f'.format(0.125);
+
+    JSUnit.assertEquals("0.125, no precision", "0.125", foo);
+    JSUnit.assertEquals("0.125, precision 2", "0.13", bar);
+}
+
+function testPadding() {
+    let zeroFormat = '%04d';
+    var foo1 = zeroFormat.format(1);
+    var foo10 = zeroFormat.format(10);
+    var foo100 = zeroFormat.format(100);
+
+    let spaceFormat = '%4d';
+    var bar1 = spaceFormat.format(1);
+    var bar10 = spaceFormat.format(10);
+    var bar100 = spaceFormat.format(100);
+
+    JSUnit.assertEquals("zero-padding 1", "0001", foo1);
+    JSUnit.assertEquals("zero-padding 10", "0010", foo10);
+    JSUnit.assertEquals("zero-padding 100", "0100", foo100);
+
+    JSUnit.assertEquals("space-padding 1", "   1", bar1);
+    JSUnit.assertEquals("space-padding 10", "  10", bar10);
+    JSUnit.assertEquals("space-padding 100", " 100", bar100);
+}
+
+function testErrors() {
+    JSUnit.assertRaises(function() { return '%z'.format(42); });
+    JSUnit.assertRaises(function() { return '%.2d'.format(42); });
+    JSUnit.assertRaises(function() { return '%Ix'.format(42); });
+    JSUnit.assertRaises(function() { return '%2$d %d %1$d'.format(1, 2, 3); });
+}
+
+String.prototype.format = Format.format;
+JSUnit.gjstestRun(this, JSUnit.setUp, JSUnit.tearDown);
+