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test: add behavior tests for slice-by-length

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This commit is contained in:
dweiller 2023-05-01 15:37:25 +10:00
parent 2c2a0402c6
commit 7c8d60e814
1 changed files with 38 additions and 0 deletions
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38
test/behavior/slice.zig
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@ -355,6 +355,10 @@ test "slice syntax resulting in pointer-to-array" {
try testSlice();
try testSliceOpt();
try testSliceAlign();
try testSliceLength();
try testSliceLengthZ();
try testArrayLength();
try testArrayLengthZ();
}
fn testArray() !void {
@ -465,6 +469,40 @@ test "slice syntax resulting in pointer-to-array" {
try expectEqualSlices("a"[0..] ++ "b"[0..], "ab");
try expectEqualSlices("a"[0.. :0] ++ "b"[0.. :0], "ab");
}
fn testSliceLength() !void {
var array = [5]u8{ 1, 2, 3, 4, 5 };
var slice: []u8 = &array;
comptime try expect(@TypeOf(slice[1..][0..2]) == *[2]u8);
comptime try expect(@TypeOf(slice[1..][0..4]) == *[4]u8);
comptime try expect(@TypeOf(slice[1..][0..2 :4]) == *[2:4]u8);
}
fn testSliceLengthZ() !void {
var array = [5:0]u8{ 1, 2, 3, 4, 5 };
var slice: [:0]u8 = &array;
comptime try expect(@TypeOf(slice[1..][0..2]) == *[2]u8);
comptime try expect(@TypeOf(slice[1..][0..2 :4]) == *[2:4]u8);
comptime try expect(@TypeOf(slice[1.. :0][0..2]) == *[2]u8);
comptime try expect(@TypeOf(slice[1.. :0][0..2 :4]) == *[2:4]u8);
}
fn testArrayLength() !void {
var array = [5]u8{ 1, 2, 3, 4, 5 };
comptime try expect(@TypeOf(array[1..][0..2]) == *[2]u8);
comptime try expect(@TypeOf(array[1..][0..4]) == *[4]u8);
comptime try expect(@TypeOf(array[1..][0..2 :4]) == *[2:4]u8);
}
fn testArrayLengthZ() !void {
var array = [5:0]u8{ 1, 2, 3, 4, 5 };
comptime try expect(@TypeOf(array[1..][0..2]) == *[2]u8);
comptime try expect(@TypeOf(array[1..][0..4]) == *[4:0]u8);
comptime try expect(@TypeOf(array[1..][0..2 :4]) == *[2:4]u8);
comptime try expect(@TypeOf(array[1.. :0][0..2]) == *[2]u8);
comptime try expect(@TypeOf(array[1.. :0][0..4]) == *[4:0]u8);
comptime try expect(@TypeOf(array[1.. :0][0..2 :4]) == *[2:4]u8);
}
};
try S.doTheTest();