test_io.c File Reference

C unit tests for I/O helpers, parsers, and startup-banner output. More...

#include "test_support.h"
#include "io.h"
#include <fcntl.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>

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Functions
static PetscErrorCode	TestShouldWriteDataOutput (void)
	Tests cadence-based Eulerian output triggering.
static PetscErrorCode	TestVerifyPathExistence (void)
	Tests filesystem existence checks for files and directories.
static PetscErrorCode	TestWriteAndReadSimulationFields (void)
	Tests writing and reloading core Eulerian field vectors.
static PetscErrorCode	TestParsePostProcessingSettings (void)
	Tests parsing of post-processing control settings from a file.
static PetscErrorCode	TestTrimWhitespace (void)
	Tests trimming of leading and trailing whitespace.
static PetscErrorCode	TestBoundaryConditionStringParsers (void)
	Tests boundary-condition string parsers for face, type, and handler names.
static PetscErrorCode	TestValidateBCHandlerForBCType (void)
	Tests validation of boundary-type and handler compatibility.
static PetscErrorCode	TestParseScalingInformation (void)
	Tests scaling-reference parsing and derived pressure scaling.
static PetscErrorCode	CaptureBannerOutput (SimCtx *simCtx, char *captured, size_t captured_len)
	Captures the startup banner into a temporary file-backed buffer.
static PetscErrorCode	AssertCapturedContains (const char *captured, const char *needle, const char *message)
	Asserts that captured banner output contains one expected substring.
static PetscErrorCode	AssertCapturedOmits (const char *captured, const char *needle, const char *message)
	Asserts that captured banner output omits one forbidden substring.
static PetscErrorCode	TestDisplayBannerTracksConditionalStartupFields (void)
	Tests conditional startup-banner fields across particle and analytical cases.
int	main (int argc, char **argv)
	Runs the unit-io PETSc test binary.

Detailed Description

C unit tests for I/O helpers, parsers, and startup-banner output.

Definition in file test_io.c.

Function Documentation

TestShouldWriteDataOutput()

static PetscErrorCode TestShouldWriteDataOutput ( void  )

static

Tests cadence-based Eulerian output triggering.

Definition at line 18 of file test_io.c.

{
    SimCtx simCtx;
 
    PetscFunctionBeginUser;
    PetscCall(PetscMemzero(&simCtx, sizeof(simCtx)));
    simCtx.tiout = 5;
 
    PetscCall(PicurvAssertBool((PetscBool)!ShouldWriteDataOutput(NULL, 5), "NULL SimCtx should never request output"));
    PetscCall(PicurvAssertBool((PetscBool)!ShouldWriteDataOutput(&simCtx, 4), "non-cadence step should not trigger output"));
    PetscCall(PicurvAssertBool(ShouldWriteDataOutput(&simCtx, 10), "cadence-aligned step should trigger output"));
    PetscFunctionReturn(0);
}

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TestVerifyPathExistence()

static PetscErrorCode TestVerifyPathExistence ( void  )

static

Tests filesystem existence checks for files and directories.

Definition at line 35 of file test_io.c.

{
    char tmpdir[PETSC_MAX_PATH_LEN];
    char filepath[PETSC_MAX_PATH_LEN];
    FILE *file = NULL;
    PetscBool exists = PETSC_FALSE;
 
    PetscFunctionBeginUser;
    PetscCall(PicurvMakeTempDir(tmpdir, sizeof(tmpdir)));
    PetscCall(PetscSNPrintf(filepath, sizeof(filepath), "%s/sample.txt", tmpdir));
 
    file = fopen(filepath, "w");
    PetscCheck(file != NULL, PETSC_COMM_SELF, PETSC_ERR_FILE_OPEN, "Failed to create temp file '%s'.", filepath);
    fputs("picurv\n", file);
    fclose(file);
 
    PetscCall(VerifyPathExistence(tmpdir, PETSC_TRUE, PETSC_FALSE, "temp directory", &exists));
    PetscCall(PicurvAssertBool(exists, "VerifyPathExistence should find the temp directory"));
 
    PetscCall(VerifyPathExistence(filepath, PETSC_FALSE, PETSC_FALSE, "temp file", &exists));
    PetscCall(PicurvAssertBool(exists, "VerifyPathExistence should find the temp file"));
    PetscCall(PicurvRemoveTempDir(tmpdir));
    PetscFunctionReturn(0);
}

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TestWriteAndReadSimulationFields()

static PetscErrorCode TestWriteAndReadSimulationFields ( void  )

static

Tests writing and reloading core Eulerian field vectors.

Definition at line 63 of file test_io.c.

{
    SimCtx *simCtx = NULL;
    UserCtx *user = NULL;
    char tmpdir[PETSC_MAX_PATH_LEN];
    char euler_dir[PETSC_MAX_PATH_LEN];
 
    PetscFunctionBeginUser;
    PetscCall(PicurvCreateMinimalContexts(&simCtx, &user, 4, 4, 4));
    PetscCall(PicurvMakeTempDir(tmpdir, sizeof(tmpdir)));
    PetscCall(PetscSNPrintf(euler_dir, sizeof(euler_dir), "%s/%s", tmpdir, simCtx->euler_subdir));
    PetscCall(PicurvEnsureDir(euler_dir));
 
    PetscCall(PetscStrncpy(simCtx->output_dir, tmpdir, sizeof(simCtx->output_dir)));
    PetscCall(PetscStrncpy(simCtx->restart_dir, tmpdir, sizeof(simCtx->restart_dir)));
    PetscCall(VecSet(user->P, 4.5));
    PetscCall(VecSet(user->Nvert, 0.0));
    PetscCall(VecSet(user->Ucat, 2.0));
    PetscCall(VecSet(user->Ucont, 3.0));
    PetscCall(PicurvPopulateIdentityMetrics(user));
 
    PetscCall(WriteSimulationFields(user));
    PetscCall(VecZeroEntries(user->P));
    PetscCall(VecZeroEntries(user->Ucat));
    PetscCall(VecZeroEntries(user->Ucont));
 
    PetscCall(ReadSimulationFields(user, simCtx->step));
    PetscCall(PicurvAssertVecConstant(user->P, 4.5, 1.0e-12, "ReadSimulationFields should restore P"));
    PetscCall(PicurvAssertVecConstant(user->Ucat, 2.0, 1.0e-12, "ReadSimulationFields should restore Ucat"));
    PetscCall(PicurvAssertVecConstant(user->Ucont, 3.0, 1.0e-12, "ReadSimulationFields should restore Ucont"));
 
    PetscCall(PicurvRemoveTempDir(tmpdir));
    PetscCall(PicurvDestroyMinimalContexts(&simCtx, &user));
    PetscFunctionReturn(0);
}

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TestParsePostProcessingSettings()

static PetscErrorCode TestParsePostProcessingSettings ( void  )

static

Tests parsing of post-processing control settings from a file.

Definition at line 102 of file test_io.c.

{
    SimCtx *simCtx = NULL;
    UserCtx *user = NULL;
    char tmpdir[PETSC_MAX_PATH_LEN];
    char cfg_path[PETSC_MAX_PATH_LEN];
    FILE *file = NULL;
 
    PetscFunctionBeginUser;
    PetscCall(PicurvCreateMinimalContexts(&simCtx, &user, 4, 4, 4));
    PetscCall(PetscCalloc1(1, &simCtx->pps));
    PetscCall(PicurvMakeTempDir(tmpdir, sizeof(tmpdir)));
    PetscCall(PetscSNPrintf(cfg_path, sizeof(cfg_path), "%s/post.run", tmpdir));
    PetscCall(PetscStrncpy(simCtx->PostprocessingControlFile, cfg_path, sizeof(simCtx->PostprocessingControlFile)));
 
    file = fopen(cfg_path, "w");
    PetscCheck(file != NULL, PETSC_COMM_SELF, PETSC_ERR_FILE_OPEN, "Failed to create temp config file '%s'.", cfg_path);
    fputs("startTime = 2\n", file);
    fputs("endTime = 6\n", file);
    fputs("timeStep = 2\n", file);
    fputs("output_particles = true\n", file);
    fputs("output_prefix = SmokeField\n", file);
    fclose(file);
 
    PetscCall(ParsePostProcessingSettings(simCtx));
    PetscCall(PicurvAssertIntEqual(2, simCtx->pps->startTime, "ParsePostProcessingSettings should parse startTime"));
    PetscCall(PicurvAssertIntEqual(6, simCtx->pps->endTime, "ParsePostProcessingSettings should parse endTime"));
    PetscCall(PicurvAssertIntEqual(2, simCtx->pps->timeStep, "ParsePostProcessingSettings should parse timeStep"));
    PetscCall(PicurvAssertBool(simCtx->pps->outputParticles, "ParsePostProcessingSettings should parse output_particles"));
    PetscCall(PicurvAssertBool((PetscBool)(strcmp(simCtx->pps->output_prefix, "SmokeField") == 0),
                               "ParsePostProcessingSettings should parse output_prefix"));
 
    PetscCall(PicurvRemoveTempDir(tmpdir));
    PetscCall(PicurvDestroyMinimalContexts(&simCtx, &user));
    PetscFunctionReturn(0);
}

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TestTrimWhitespace()

static PetscErrorCode TestTrimWhitespace ( void  )

static

Tests trimming of leading and trailing whitespace.

Definition at line 142 of file test_io.c.

{
    char value_a[] = "   inlet_value   ";
    char value_b[] = "   ";
 
    PetscFunctionBeginUser;
    TrimWhitespace(value_a);
    PetscCall(PicurvAssertBool((PetscBool)(strcmp(value_a, "inlet_value") == 0),
                               "TrimWhitespace should remove leading and trailing whitespace"));
 
    TrimWhitespace(value_b);
    PetscCall(PicurvAssertBool((PetscBool)(strcmp(value_b, "") == 0),
                               "TrimWhitespace should reduce all-whitespace strings to empty"));
    PetscFunctionReturn(0);
}

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TestBoundaryConditionStringParsers()

static PetscErrorCode TestBoundaryConditionStringParsers ( void  )

static

Tests boundary-condition string parsers for face, type, and handler names.

Definition at line 161 of file test_io.c.

{
    BCFace face = BC_FACE_NEG_X;
    BCType type = WALL;
    BCHandlerType handler = BC_HANDLER_WALL_NOSLIP;
 
    PetscFunctionBeginUser;
    PetscCall(StringToBCFace("+Zeta", &face));
    PetscCall(PicurvAssertIntEqual(BC_FACE_POS_Z, face, "StringToBCFace should parse +Zeta"));
 
    PetscCall(StringToBCType("periodic", &type));
    PetscCall(PicurvAssertIntEqual(PERIODIC, type, "StringToBCType should parse PERIODIC case-insensitively"));
 
    PetscCall(StringToBCHandlerType("constant_flux", &handler));
    PetscCall(PicurvAssertIntEqual(BC_HANDLER_PERIODIC_DRIVEN_CONSTANT_FLUX, handler,
                                   "StringToBCHandlerType should parse constant_flux"));
    PetscCall(StringToBCHandlerType("prescribed_flow", &handler));
    PetscCall(PicurvAssertIntEqual(BC_HANDLER_INLET_PROFILE_FROM_FILE, handler,
                                   "StringToBCHandlerType should parse prescribed_flow"));
    PetscFunctionReturn(0);
}

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TestValidateBCHandlerForBCType()

static PetscErrorCode TestValidateBCHandlerForBCType ( void  )

static

Tests validation of boundary-type and handler compatibility.

Definition at line 186 of file test_io.c.

{
    PetscFunctionBeginUser;
    PetscCall(PicurvAssertBool((PetscBool)(ValidateBCHandlerForBCType(WALL, BC_HANDLER_WALL_NOSLIP) == 0),
                               "WALL + noslip should be a valid combination"));
    PetscCall(PicurvAssertBool((PetscBool)(ValidateBCHandlerForBCType(PERIODIC, BC_HANDLER_PERIODIC_GEOMETRIC) == 0),
                               "PERIODIC + geometric should be a valid combination"));
    PetscCall(PicurvAssertBool((PetscBool)(ValidateBCHandlerForBCType(INLET, BC_HANDLER_INLET_PROFILE_FROM_FILE) == 0),
                               "INLET + prescribed_flow should be a valid combination"));
    PetscCall(PicurvAssertBool((PetscBool)(ValidateBCHandlerForBCType(INLET, BC_HANDLER_WALL_NOSLIP) != 0),
                               "INLET + noslip should be rejected"));
    PetscFunctionReturn(0);
}

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TestParseScalingInformation()

static PetscErrorCode TestParseScalingInformation ( void  )

static

Tests scaling-reference parsing and derived pressure scaling.

Definition at line 203 of file test_io.c.

{
    SimCtx simCtx;
 
    PetscFunctionBeginUser;
    PetscCall(PetscMemzero(&simCtx, sizeof(simCtx)));
 
    PetscCall(PetscOptionsClearValue(NULL, "-scaling_L_ref"));
    PetscCall(PetscOptionsClearValue(NULL, "-scaling_U_ref"));
    PetscCall(PetscOptionsClearValue(NULL, "-scaling_rho_ref"));
 
    PetscCall(ParseScalingInformation(&simCtx));
    PetscCall(PicurvAssertRealNear(1.0, simCtx.scaling.L_ref, 1.0e-12, "Default scaling_L_ref should be 1.0"));
    PetscCall(PicurvAssertRealNear(1.0, simCtx.scaling.U_ref, 1.0e-12, "Default scaling_U_ref should be 1.0"));
    PetscCall(PicurvAssertRealNear(1.0, simCtx.scaling.rho_ref, 1.0e-12, "Default scaling_rho_ref should be 1.0"));
    PetscCall(PicurvAssertRealNear(1.0, simCtx.scaling.P_ref, 1.0e-12, "Default scaling_P_ref should be 1.0"));
 
    PetscCall(PetscOptionsSetValue(NULL, "-scaling_L_ref", "2.5"));
    PetscCall(PetscOptionsSetValue(NULL, "-scaling_U_ref", "4.0"));
    PetscCall(PetscOptionsSetValue(NULL, "-scaling_rho_ref", "1.2"));
 
    PetscCall(ParseScalingInformation(&simCtx));
    PetscCall(PicurvAssertRealNear(2.5, simCtx.scaling.L_ref, 1.0e-12, "scaling_L_ref should honor options"));
    PetscCall(PicurvAssertRealNear(4.0, simCtx.scaling.U_ref, 1.0e-12, "scaling_U_ref should honor options"));
    PetscCall(PicurvAssertRealNear(1.2, simCtx.scaling.rho_ref, 1.0e-12, "scaling_rho_ref should honor options"));
    PetscCall(PicurvAssertRealNear(19.2, simCtx.scaling.P_ref, 1.0e-12, "scaling_P_ref should be rho_ref*U_ref^2"));
 
    PetscCall(PetscOptionsClearValue(NULL, "-scaling_L_ref"));
    PetscCall(PetscOptionsClearValue(NULL, "-scaling_U_ref"));
    PetscCall(PetscOptionsClearValue(NULL, "-scaling_rho_ref"));
    PetscFunctionReturn(0);
}

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CaptureBannerOutput()

static PetscErrorCode CaptureBannerOutput ( SimCtx *  simCtx, char *  captured, size_t  captured_len  )

static

Captures the startup banner into a temporary file-backed buffer.

Definition at line 238 of file test_io.c.

{
    char tmpdir[PETSC_MAX_PATH_LEN];
    char capture_path[PETSC_MAX_PATH_LEN];
    FILE *capture_file = NULL;
    int saved_stdout = -1;
    int capture_fd = -1;
    size_t bytes_read = 0;
    PetscErrorCode ierr;
 
    PetscFunctionBeginUser;
    PetscCheck(simCtx != NULL, PETSC_COMM_SELF, PETSC_ERR_ARG_NULL, "SimCtx cannot be NULL.");
    PetscCheck(captured != NULL, PETSC_COMM_SELF, PETSC_ERR_ARG_NULL, "Capture buffer cannot be NULL.");
    PetscCheck(captured_len > 0, PETSC_COMM_SELF, PETSC_ERR_ARG_SIZ, "Capture buffer must be non-empty.");
 
    PetscCall(PicurvMakeTempDir(tmpdir, sizeof(tmpdir)));
    PetscCall(PetscSNPrintf(capture_path, sizeof(capture_path), "%s/banner.log", tmpdir));
 
    fflush(stdout);
    saved_stdout = dup(STDOUT_FILENO);
    PetscCheck(saved_stdout >= 0, PETSC_COMM_SELF, PETSC_ERR_SYS, "dup(STDOUT_FILENO) failed.");
    capture_fd = open(capture_path, O_CREAT | O_TRUNC | O_WRONLY, 0600);
    PetscCheck(capture_fd >= 0, PETSC_COMM_SELF, PETSC_ERR_FILE_OPEN, "Failed to open capture file '%s'.", capture_path);
    PetscCheck(dup2(capture_fd, STDOUT_FILENO) >= 0, PETSC_COMM_SELF, PETSC_ERR_SYS, "dup2() failed while redirecting stdout.");
    close(capture_fd);
    capture_fd = -1;
 
    ierr = DisplayBanner(simCtx);
    fflush(stdout);
    PetscCheck(dup2(saved_stdout, STDOUT_FILENO) >= 0, PETSC_COMM_SELF, PETSC_ERR_SYS, "dup2() failed while restoring stdout.");
    close(saved_stdout);
    saved_stdout = -1;
    PetscCall(ierr);
 
    capture_file = fopen(capture_path, "r");
    PetscCheck(capture_file != NULL, PETSC_COMM_SELF, PETSC_ERR_FILE_OPEN, "Failed to read capture file '%s'.", capture_path);
    bytes_read = fread(captured, 1, captured_len - 1, capture_file);
    captured[bytes_read] = '\0';
    fclose(capture_file);
    PetscCall(PicurvRemoveTempDir(tmpdir));
    PetscFunctionReturn(0);
}

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AssertCapturedContains()

static PetscErrorCode AssertCapturedContains ( const char *  captured, const char *  needle, const char *  message  )

static

Asserts that captured banner output contains one expected substring.

Definition at line 283 of file test_io.c.

{
    PetscFunctionBeginUser;
    PetscCall(PicurvAssertBool((PetscBool)(strstr(captured, needle) != NULL), message));
    PetscFunctionReturn(0);
}

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AssertCapturedOmits()

static PetscErrorCode AssertCapturedOmits ( const char *  captured, const char *  needle, const char *  message  )

static

Asserts that captured banner output omits one forbidden substring.

Definition at line 292 of file test_io.c.

{
    PetscFunctionBeginUser;
    PetscCall(PicurvAssertBool((PetscBool)(strstr(captured, needle) == NULL), message));
    PetscFunctionReturn(0);
}

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TestDisplayBannerTracksConditionalStartupFields()

static PetscErrorCode TestDisplayBannerTracksConditionalStartupFields ( void  )

static

Tests conditional startup-banner fields across particle and analytical cases.

Definition at line 302 of file test_io.c.

{
    SimCtx *simCtx = NULL;
    UserCtx *user = NULL;
    char captured[16384];
 
    PetscFunctionBeginUser;
    PetscCall(PicurvCreateMinimalContexts(&simCtx, &user, 4, 4, 4));
    simCtx->OnlySetup = PETSC_FALSE;
    simCtx->StepsToRun = 5;
    simCtx->immersed = PETSC_FALSE;
    PetscCall(PetscStrncpy(simCtx->eulerianSource, "solve", sizeof(simCtx->eulerianSource)));
    simCtx->particleConsoleOutputFreq = 7;
    simCtx->LoggingFrequency = 4;
    simCtx->ParticleInitialization = PARTICLE_INIT_POINT_SOURCE;
 
    PetscCall(CaptureBannerOutput(simCtx, captured, sizeof(captured)));
    PetscCall(AssertCapturedContains(captured, "Run Mode                   : Full Simulation",
                                     "DisplayBanner should include the run mode"));
    PetscCall(AssertCapturedContains(captured, "Field/Restart Cadence      : every 2 step(s)",
                                     "DisplayBanner should include field/restart cadence"));
    PetscCall(AssertCapturedContains(captured, "Immersed Boundary          : DISABLED",
                                     "DisplayBanner should include immersed-boundary state"));
    PetscCall(AssertCapturedContains(captured, "Number of Particles         : 0",
                                     "DisplayBanner should include the total particle count"));
    PetscCall(AssertCapturedOmits(captured, "Particle Console Cadence",
                                  "DisplayBanner should omit particle console cadence when no particles are configured"));
    PetscCall(AssertCapturedOmits(captured, "Particle Log Row Sampling",
                                  "DisplayBanner should omit particle row sampling when no particles are configured"));
    PetscCall(AssertCapturedOmits(captured, "Particle Restart Mode",
                                  "DisplayBanner should omit particle restart mode when no particles are configured"));
    PetscCall(AssertCapturedOmits(captured, "Particle Initialization Mode",
                                  "DisplayBanner should omit particle initialization mode when no particles are configured"));
    PetscCall(AssertCapturedOmits(captured, "Interpolation Method",
                                  "DisplayBanner should omit interpolation method when no particles are configured"));
 
    simCtx->StartStep = 3;
    simCtx->np = 8;
    simCtx->particleConsoleOutputFreq = 0;
    simCtx->LoggingFrequency = 4;
    PetscCall(PetscStrncpy(simCtx->particleRestartMode, "load", sizeof(simCtx->particleRestartMode)));
    PetscCall(CaptureBannerOutput(simCtx, captured, sizeof(captured)));
    PetscCall(AssertCapturedContains(captured, "Number of Particles         : 8",
                                     "DisplayBanner should include the active particle count"));
    PetscCall(AssertCapturedContains(captured, "Particle Console Cadence   : DISABLED",
                                     "DisplayBanner should show disabled particle console cadence when particles are configured"));
    PetscCall(AssertCapturedContains(captured, "Particle Log Row Sampling  : every 4 particle(s)",
                                     "DisplayBanner should include particle row sampling when particles are configured"));
    PetscCall(AssertCapturedContains(captured, "Particle Restart Mode      : load",
                                     "DisplayBanner should include particle restart mode for restarted particle runs"));
    PetscCall(AssertCapturedContains(captured, "Particle Initialization Mode: Point Source",
                                     "DisplayBanner should include particle initialization mode when particles are configured"));
    PetscCall(AssertCapturedContains(captured, "Interpolation Method       : Trilinear (direct cell-center)",
                                     "DisplayBanner should include default interpolation method when particles are configured"));
    PetscCall(AssertCapturedOmits(captured, "Particles Initialized At",
                                  "DisplayBanner should omit inlet-face placement details for point-source particle initialization"));
 
    simCtx->StartStep = 0;
    simCtx->particleConsoleOutputFreq = 6;
    simCtx->ParticleInitialization = PARTICLE_INIT_SURFACE_RANDOM;
    user->inletFaceDefined = PETSC_TRUE;
    user->identifiedInletBCFace = (BCFace)0;
    PetscCall(PetscStrncpy(simCtx->eulerianSource, "analytical", sizeof(simCtx->eulerianSource)));
    PetscCall(PetscStrncpy(simCtx->AnalyticalSolutionType, "ZERO_FLOW", sizeof(simCtx->AnalyticalSolutionType)));
    PetscCall(CaptureBannerOutput(simCtx, captured, sizeof(captured)));
    PetscCall(AssertCapturedContains(captured, "Analytical Solution Type : ZERO_FLOW",
                                     "DisplayBanner should include the analytical solution type for analytical runs"));
    PetscCall(AssertCapturedContains(captured, "Particle Console Cadence   : every 6 step(s)",
                                     "DisplayBanner should include active particle console cadence when particles are configured"));
    PetscCall(AssertCapturedContains(captured, "Particle Initialization Mode: Surface: Random",
                                     "DisplayBanner should include particle initialization mode for analytical particle runs"));
    PetscCall(AssertCapturedContains(captured, "Particles Initialized At",
                                     "DisplayBanner should include inlet-face placement details for surface particle initialization"));
 
    PetscCall(PicurvDestroyMinimalContexts(&simCtx, &user));
    PetscFunctionReturn(0);
}

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main()

int main	(	int	argc,
		char **	argv
	)

Runs the unit-io PETSc test binary.

Definition at line 383 of file test_io.c.

{
    PetscErrorCode ierr;
    const PicurvTestCase cases[] = {
        {"should-write-data-output", TestShouldWriteDataOutput},
        {"verify-path-existence", TestVerifyPathExistence},
        {"write-and-read-simulation-fields", TestWriteAndReadSimulationFields},
        {"parse-post-processing-settings", TestParsePostProcessingSettings},
        {"trim-whitespace", TestTrimWhitespace},
        {"bc-string-parsers", TestBoundaryConditionStringParsers},
        {"validate-bc-handler-for-type", TestValidateBCHandlerForBCType},
        {"parse-scaling-information", TestParseScalingInformation},
        {"display-banner-startup-summary", TestDisplayBannerTracksConditionalStartupFields},
    };
 
    ierr = PetscInitialize(&argc, &argv, NULL, "PICurv I/O tests");
    if (ierr) {
        return (int)ierr;
    }
 
    ierr = PicurvRunTests("unit-io", cases, sizeof(cases) / sizeof(cases[0]));
    if (ierr) {
        PetscFinalize();
        return (int)ierr;
    }
 
    ierr = PetscFinalize();
    return (int)ierr;
}

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