tests ~ reorganize tests

tests/by-util/test_nl.rs

@@ -0,0 +1,66 @@
+use crate::common::util::*;
+
+#[test]
+fn test_stdin_nonewline() {
+    new_ucmd!()
+        .pipe_in("No Newline")
+        .run()
+        .stdout_is("     1\tNo Newline\n");
+}
+#[test]
+fn test_stdin_newline() {
+    new_ucmd!()
+        .args(&["-s", "-", "-w", "1"])
+        .pipe_in("Line One\nLine Two\n")
+        .run()
+        .stdout_is("1-Line One\n2-Line Two\n");
+}
+
+#[test]
+fn test_padding_without_overflow() {
+    new_ucmd!()
+        .args(&["-i", "1000", "-s", "x", "-n", "rz", "simple.txt"])
+        .run()
+        .stdout_is(
+            "000001xL1\n001001xL2\n002001xL3\n003001xL4\n004001xL5\n005001xL6\n006001xL7\n0070\
+                01xL8\n008001xL9\n009001xL10\n010001xL11\n011001xL12\n012001xL13\n013001xL14\n014\
+                001xL15\n",
+        );
+}
+
+#[test]
+fn test_padding_with_overflow() {
+    new_ucmd!()
+        .args(&["-i", "1000", "-s", "x", "-n", "rz", "-w", "4", "simple.txt"])
+        .run()
+        .stdout_is(
+            "0001xL1\n1001xL2\n2001xL3\n3001xL4\n4001xL5\n5001xL6\n6001xL7\n7001xL8\n8001xL9\n\
+                9001xL10\n10001xL11\n11001xL12\n12001xL13\n13001xL14\n14001xL15\n",
+        );
+}
+
+#[test]
+fn test_sections_and_styles() {
+    for &(fixture, output) in &[
+        (
+            "section.txt",
+            "\nHEADER1\nHEADER2\n\n1  |BODY1\n2  \
+                                  |BODY2\n\nFOOTER1\nFOOTER2\n\nNEXTHEADER1\nNEXTHEADER2\n\n1  \
+                                  |NEXTBODY1\n2  |NEXTBODY2\n\nNEXTFOOTER1\nNEXTFOOTER2\n",
+        ),
+        (
+            "joinblanklines.txt",
+            "1  |Nonempty\n2  |Nonempty\n3  |Followed by 10x empty\n\n\n\n\n4  \
+                                  |\n\n\n\n\n5  |\n6  |Followed by 5x empty\n\n\n\n\n7  |\n8  \
+                                  |Followed by 4x empty\n\n\n\n\n9  |Nonempty\n10 |Nonempty\n11 \
+                                  |Nonempty.\n",
+        ),
+    ] {
+        new_ucmd!()
+            .args(&[
+                "-s", "|", "-n", "ln", "-w", "3", "-b", "a", "-l", "5", fixture,
+            ])
+            .run()
+            .stdout_is(output);
+    }
+}