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Merge pull request #128 from bgamari/ioreg-test
Add rudimentary tests for ioreg Reviewed-by:
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| Original file line number | Diff line number | Diff line change |
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| // Zinc, the bare metal stack for rust. | ||
| // Copyright 2014 Ben Gamari <bgamari@gmail.com> | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
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| //! Tests for ioreg! syntax extension | ||
| #![feature(phase)] | ||
| #[phase(plugin)] extern crate macro_ioreg; | ||
| #[phase(plugin,link)] extern crate shiny; | ||
| extern crate core; | ||
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| #[allow(dead_code)] | ||
| #[path="../src/lib/volatile_cell.rs"] mod volatile_cell; | ||
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| #[cfg(test)] | ||
| mod test { | ||
| use std::mem::{transmute, zeroed}; | ||
| use std::ptr::RawPtr; | ||
| use volatile_cell::VolatileCell; | ||
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| fn get_value<'a, T>(v: &'a T, offset: uint) -> u32 { | ||
| unsafe { | ||
| let ptr: *const u32 = transmute(v); | ||
| *(ptr.offset(offset as int)) | ||
| } | ||
| } | ||
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| fn zeroed_safe<T: Copy>() -> T { | ||
| unsafe { | ||
| return zeroed(); | ||
| } | ||
| } | ||
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| ioregs!(BASIC_TEST = { | ||
| 0x0 => reg32 reg1 { | ||
| 0 => field1, | ||
| 1..3 => field2, | ||
| 16..24 => field3, | ||
| 25 => field4: set_to_clear, | ||
| } | ||
| 0x4 => reg32 reg2 { | ||
| 0 => field1, | ||
| } | ||
| }) | ||
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| describe!( | ||
| before_each { | ||
| let test: BASIC_TEST = zeroed_safe(); | ||
| } | ||
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| it "can round_trip simple field values (1)" { | ||
| test.reg1.set_field1(true); | ||
| assert_eq!(test.reg1.field1(), true) | ||
| assert_eq!(get_value(&test, 0), 1) | ||
| assert_eq!(get_value(&test, 1), 0) | ||
| } | ||
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| it "can round trip simple field values (2)" { | ||
| test.reg1.set_field3(0xde); | ||
| assert_eq!(test.reg1.field3(), 0xde) | ||
| assert_eq!(get_value(&test, 0), 0xde<<16) | ||
| } | ||
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| it "sets set_to_clear fields" { | ||
| test.reg1.clear_field4(); | ||
| assert_eq!(get_value(&test, 0), 1<<25) | ||
| } | ||
| ) | ||
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| ioregs!(GROUP_TEST = { | ||
| 0x0 => group regs[5] { | ||
| 0x0 => reg32 reg1 { | ||
| 0..31 => field1 | ||
| } | ||
| 0x4 => reg32 reg2 { | ||
| 0..31 => field2 | ||
| } | ||
| } | ||
| }) | ||
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| describe!( | ||
| before_each { | ||
| let test: GROUP_TEST = zeroed_safe(); | ||
| } | ||
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| it "sets groups correctly" { | ||
| test.regs[0].reg1.set_field1(0xdeadbeef); | ||
| assert_eq!(test.regs[0].reg1.field1(), 0xdeadbeef) | ||
| assert_eq!(get_value(&test, 0), 0xdeadbeef) | ||
| for i in range(1, 10) { | ||
| assert_eq!(get_value(&test, i), 0) | ||
| } | ||
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| test.regs[2].reg2.set_field2(0xfeedbeef); | ||
| assert_eq!(test.regs[2].reg2.field2(), 0xfeedbeef) | ||
| assert_eq!(get_value(&test, 5), 0xfeedbeef) | ||
| } | ||
| ) | ||
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| ioregs!(FIELD_ARRAY_TEST = { | ||
| 0x0 => reg32 reg1 { | ||
| 0..31 => field[16] | ||
| } | ||
| }) | ||
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| describe!( | ||
| before_each { | ||
| let test: FIELD_ARRAY_TEST = zeroed_safe(); | ||
| } | ||
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| it "sets field arrays correctly" { | ||
| test.reg1.set_field(0, 1); | ||
| assert_eq!(test.reg1.field(0), 1); | ||
| assert_eq!(get_value(&test, 0), 0x1) | ||
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| test.reg1.set_field(4, 3); | ||
| assert_eq!(test.reg1.field(4), 3); | ||
| assert_eq!(get_value(&test, 0), 0x1 | 0x3<<8) | ||
| } | ||
| ) | ||
| } |
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