tests: Add parseFloat tests

core/tests/regression_tests.rs

@@ -467,6 +467,7 @@ swf_tests_approx! {
     (stage_object_properties, "avm1/stage_object_properties", 6, epsilon = 0.051),
     (stage_object_properties_swf6, "avm1/stage_object_properties_swf6", 4, epsilon = 0.051),
     (movieclip_getbounds, "avm1/movieclip_getbounds", 1, epsilon = 0.051),
+    (parse_float, "avm1/parse_float", 1, max_relative = 5.0 * std::f64::EPSILON),
     (edittext_letter_spacing, "avm1/edittext_letter_spacing", 1, epsilon = 15.0), // TODO: Discrepancy in wrapping in letterSpacing = 0.1 test.
     (edittext_align, "avm1/edittext_align", 1, epsilon = 3.0),
     (edittext_margins, "avm1/edittext_margins", 1, epsilon = 5.0), // TODO: Discrepancy in wrapping.

core/tests/swfs/avm1/parse_float/output.txt

@@ -0,0 +1,44 @@
+// parseFloat("12345")
+12345
+// parseFloat("012345.67890")
+12345.6789
+// parseFloat("    99999.99999          ")
+99999.99999
+// parseFloat("-22222222222222222")
+-2.22222222222222e+16
+// parseFloat(".0000000000000000000000005")
+5e-25
+// parseFloat("0000.12345GIBBERISH")
+0.12345
+// parseFloat("9e99999")
+Infinity
+// parseFloat("+100e-100")
+1e-98
+// parseFloat("-123.234E+66")
+-1.23234e+68
+// parseFloat(".2E20E1")
+2e+19
+// parseFloat("1.2345.678")
+1.2345678
+// parseFloat("1.2345.6e50")
+1.23456
+// parseFloat("-034.1+e20")
+-34.1
+// parseFloat("e10")
+NaN
+// parseFloat("BADBAD")
+NaN
+// parseFloat("-")
+NaN
+// parseFloat("0xff")
+0
+// parseFloat("Infinity")
+NaN
+// parseFloat(true)
+NaN
+// parseFloat(1.2)
+1.2
+// parseFloat(Infinity)
+NaN
+// parseFloat({toString})
+5